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Journal articles on the topic 'Nano-MgO'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Ma, Zhao, Runming Gong, Ying Han, et al. "Nano-magnesium oxide as hard template synthesis of lignin carbonbased solid acids and its application for cellulose hydrolysis." January 2019 18, no. 01 (2019): 67–71. http://dx.doi.org/10.32964/tj18.1.67.

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In comparison with templates of zeolites and silica, a template of nano-magnesium oxide (nano-MgO) has some unique advantages. Namely, it is easily removed by dilute noncorrosive acid solution, is recyclable for nano-MgO precursors, and has tunable pore size by selecting various nano-MgO precursors. In this study, the nano-MgO as a hard template synthesis of lignin carbon-based solid acids catalyst was characterized by scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD). After using nano-MgO as a hard template, the resulting nano-MgO

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2

Chen, Hukui, Zhijun He, Xiaxia Mu, Yu Jiang, and Weixing Zhao. "Preparation of nano-magnesium oxide in ionic liquid by microwave irradiation." Journal of Physics: Conference Series 2393, no. 1 (2022): 012002. http://dx.doi.org/10.1088/1742-6596/2393/1/012002.

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Abstract Nano-MgO was prepared by microwave irradiated ionic liquid method. The influence of the volume of ionic liquid ([BMIM]Ac), microwave radiation power and microwave radiation temperature on the morphology of nano-MgO were investigated. The prepared nano-MgO was characterized by TG, XRD, EDS and SEM. The results showed that the nano-MgO prepared by this method has a short rod-like shape, uniform particle size, and good dispersibility. The average diameter of the prepared rod-shaped nano-MgO was 25 nm, the length was 67 nm, and the specific surface area was 48.27 m2/g. During the preparat

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3

Zhang, Wenlong, Yajie Dai, Hong Zhao, and Lidong Zhong. "Influence of Nanocomposites of LDPE Doped with Nano-MgO by Different Preparing Methods on Its Dielectric Properties." Journal of Nanomaterials 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/146260.

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LDPE doped with nano-MgO can effectively suppress the space charge accumulation in the nanocomposite under DC applied field, and this suppression was affected greatly by the prepared nano-MgO particles. In this paper, the influence of nanocomposite of LDPE doped with nano-MgO by using different preparation methods on their space charge, and volume resistivity as well as DC breakdown strength was researched. The results showed that size of nano-MgO prepared by the traditional heating method was about 22.74 nm, while being only about 12.76 nm by the microwave-assisted method. When the nano-MgO c

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4

Zhu, Yi Min, Yue Xin Han, and Guo Liang Liu. "Cubic-Shaped Nano-MgO Powder and its Infrared Absorption Properties." Advanced Materials Research 92 (January 2010): 35–40. http://dx.doi.org/10.4028/www.scientific.net/amr.92.35.

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A precipitation-pyrolysis process was used for the synthesis of cubic nano-MgO powder. The main effect factors on the size and shape of nano-MgO powder such as mechanical stirring rate, organic reagent, and calcinations of the process were investigated. XRD and TEM were used to study on composition, morphology and size of nano-MgO powder. The results indicate that at the condition of mechanical stirring rate 510 rmp, glycol as organic crystal controller, calcination time 3 h, cubic nano-MgO powder was prepared with average size of 35 nm. FTIR results show that cubic nano-MgO powder has abnorma

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5

Wang, Wei, Hang Zhou, Jian Li, et al. "Influence of Carbonization Process on the Mechanical Properties of Nano-MgO Modified Cement Soil." Sustainability 13, no. 6 (2021): 3558. http://dx.doi.org/10.3390/su13063558.

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In order to explore the modification effect of carbonization time on nano-MgO-modified cement soil, unconfined compressive strength tests of nano-MgO-modified cement soil with carbonization times of 0 h, 6 h, 1 d, 2 d and 4 d were carried out. A method for normalizing the stress–strain curve was proposed, and the influence of nano-MgO content and carbonization time was investigated from the three aspects of compressive strength, peak strain and energy dissipation. The test results show the following: (1) The compressive strength of the modified cement soil can be significantly improved by addi

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6

Yu, Guang, Yujia Cheng, and Zhicheng Wu. "Effect of Nano-MgO Particles Doping on Breakdown Characteristics of Polypropylene." Coatings 10, no. 4 (2020): 312. http://dx.doi.org/10.3390/coatings10040312.

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In this article, the nano-MgO particles were used as inorganic fillers, and polypropylene (PP) polymer was used as a matrix. The nano-MgO/PP composites were prepared by double melt blending. Using the polarization microscope (PLM) test and hot-stage microscope test, the crystalline morphology of PP and nano-MgO/PP with different mass fraction were observed. Using the differential scanning calorimetry (DSC) test, the parameters and crystallinity in the process of isothermal crystallization could be obtained. Additionally, the samples of pure PP and nano-MgO/PP composites were dealt with using a

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7

Liao, Y. Y., A. L. Strayer-Scherer, J. White, et al. "Nano-Magnesium Oxide: A Novel Bactericide Against Copper-Tolerant Xanthomonas perforans Causing Tomato Bacterial Spot." Phytopathology® 109, no. 1 (2019): 52–62. http://dx.doi.org/10.1094/phyto-05-18-0152-r.

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Bacterial spot caused by Xanthomonas perforans causes significant damage on tomato in Florida. Due to the presence of copper (Cu)-tolerant X. perforans strains, Cu bactericides are not effective in disease management. Hence, there is a critical need to find alternatives for Cu. Antibacterial activity of magnesium oxide (Nano-MgO), and other metal oxide nanoparticles, were evaluated against a Cu-tolerant and -sensitive X. perforans strain. In vitro experiments demonstrated high antibacterial activity of Nano-MgO against both strains compared with the commercial Cu. The minimum inhibitory concen

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8

Bhardwaj, Sonia Bhonchal, Priyanka Shorey, Kitty Sidhu, Jagat Bhushan, and Sanjay Chhibber. "Ex-Vivo evaluation of Nano-MgO in the elimination of Endodontic pathogen- E. faecalis." IP Indian Journal of Conservative and Endodontics 6, no. 4 (2021): 222–27. http://dx.doi.org/10.18231/j.ijce.2021.048.

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Magnesium oxide (MgO) nanoparticles due to their antimicrobial properties and ability to survive under harsh conditions have become an area of interest in the field of biomedical sciences. The aim of the study was to evaluate antimicrobial efficacy of Nano-MgO in the elimination of endodontic pathogen . Minimum inhibitory concentration (MIC) of Nano-MgO and sodium hypochlorite against was calculated using broth dilution method. The antibacterial efficacy of Nano-MgO in elimination of the pathogens was seen using an ex-vivo model of decoronated teeth which were experimentally infected. The anti

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9

Zhu, Yi Min, Yue Xin Han, Xiao Yu Wang, and Xu Wang. "Preparation of Nano- MgO and Investigation of its Infrared Absorption Properties." Advanced Materials Research 58 (October 2008): 115–20. http://dx.doi.org/10.4028/www.scientific.net/amr.58.115.

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A precipitation-pyrolysis process was developed for the synthesis of MgO nano-particles with diameter of 20~100 nm by using organic reagent, glycol, n-butanol and N,N-Dimethylacetamide, as shape and size controller. XRD and TEM were used to study on composition, morphology and size of the as prepared MgO nanoparticles. The results indicate that organic crystal controller is one of the key factors affecting the sizes and shapes of the nano MgO particles. When using glycol as a crystal controller, the dispersion of nano MgO particles is better and olive-shaped particles with sizes of 20~40 nm ar

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10

Chen, Shufeng, Pengfei Ni, Zhao Sun, and Kekuo Yuan. "Geotechnical Properties and Stabilization Mechanism of Nano-MgO Stabilized Loess." Sustainability 15, no. 5 (2023): 4344. http://dx.doi.org/10.3390/su15054344.

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This study focused on the utilization of nano-MgO as an energy-saving and eco-friendly stabilizer to improve the engineering performance of loess. To this end, loess samples at various nano-MgO contents and curing times were prepared, and then standard compaction, consistency limits, and unconfined compression tests were performed. The achieved results demonstrated that adding nano-MgO increased the liquid limit, plastic limit, and optimum water content of loess, while it decreased the plastic index and maximum dry density. The unconfined compressive strength (UCS) presented an increasing tren

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11

Ye, Yuxun, Yanming Liu, Tao Shi, et al. "Effect of Nano-Magnesium Oxide on the Expansion Performance and Hydration Process of Cement-Based Materials." Materials 14, no. 13 (2021): 3766. http://dx.doi.org/10.3390/ma14133766.

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Many scholars are concerned about the effect of nano-MgO as an expansion agent on the performance of cement-based materials at an early age, but over a long period less attention is paid to expansion stability and mechanical properties. This article examines the influence of nano-MgO on the long-term consistency, fluidity, expansion stability, hydration, and mechanical properties of 30% fly ash cement-based materials and improves research into nano-MgO as an expansion agent. Expansion performance, flexural and compressive strength, and stability after boiling and autoclave treatment were teste

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12

Liu, Guo Liang, Yi Min Zhu, Zhi Jun Ma, and Xin Fang. "Mechanism Analysis of FTIR Absorption Characteristic of MgO Nano-Powder." Advanced Materials Research 158 (November 2010): 145–58. http://dx.doi.org/10.4028/www.scientific.net/amr.158.145.

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Nano-MgO powders with different size form 30 to 100 nm are prepared and measured by XRD and IR. FTIR results show that nano-MgO powder has abnormal infrared absorption behaviors compared with that of micron scale; and there exist blue shifts of infrared absorption peaks with the decrease of the particles size. But when the average particle size of nano-MgO powder is down to less than 50 nm, there are red shifts of infrared absorption peaks. The aim of the paper is to analyze the mechanism of IR absorption characteristic of MgO Nano-powder by a single- dimensional chain vibration model.

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13

Tang, Zhen-Xing, and Lu-E. Shi. "Preparation of nano-MgO using ultrasonic method and its characteristics." Eclética Química Journal 33, no. 1 (2018): 15. http://dx.doi.org/10.26850/1678-4618eqj.v33.1.2008.p15-20.

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MgO is an important inorganic material, which can be used in many aspects, such as catalyst, toxic-waste remediation agent, adsorbent, and others. In order to make use of MgO, nano-MgO was prepared by ultrasonic method using Mg (CH3COO)2.2H2O as precursor, NaOH aqueous solution as precipitant in this paper. Effect factors on MgO nano-particle size were investigated. Characteristics of samples were measured by TGA, XRD, TEM, and others techniques. The results showed that the size of nano-MgO about 4 nm could be obtained under the following conditions (ultrasonic time 20 min, ultrasonic power 25

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14

Kumar, Anil, and Henry K. Kiriamiti. "Kinetics of Transesterification of Croton megalocarpus Oil Using Alkaline Earth Catalysts with Conventional and Microwave Heating." International Journal of Chemical Engineering 2020 (November 16, 2020): 1–10. http://dx.doi.org/10.1155/2020/8841331.

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Transesterification kinetics of Croton megalocarpus oil to produce fatty acid methyl esters (FAME) was studied using homogeneous NaOH and heterogeneous alkaline earth Nano MgO, MgO, Nano CaO, CaO, Reoxidized CaO, SrO, and BaO catalysts. Characteristic surface, bulk, and chemical properties of the heterogeneous catalysts were obtained which included surface area, pore properties, scanning electron micrography, X-ray diffraction, basic strength, and basicity. The catalyst porosity varied as Nano MgO > Nano CaO > MgO > CaO > CaO-RO > SrO > BaO and basicity as BaO > SrO > N

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15

Wang, Peng, Ke Ma, and Xin He Zhu. "Research on Surface Modified Micro/Nano-MgO Particles Improve Tribological Characteristics of Lubricating Oil." Advanced Materials Research 152-153 (October 2010): 1133–37. http://dx.doi.org/10.4028/www.scientific.net/amr.152-153.1133.

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This paper applies the sol-gel method (Sol-Gel) ，uses Poly Vinyl pyrrolidone (PVP) as dispersant，oleic acid as modifier to prepare and modify micro/nano-MgO particles. The characterization results of micro/nano-MgO particles by using XRD and SEM verified that micro/nano-MgO particles prepared above are FCC and the average particles size is 50nm. In the process of friction and wear experiment, the results show that at the significant effect of anti-friction and anti-wear is obtained after adding micro/nano-MgO particles in the 4012 marine lubricant. Especially under higher loads, the friction-r

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16

You, Xiu Dong, Meng Fu Zhu, Hong Bo Su, Ping Chen, and Cheng Deng. "Study on Antibacterial Efficacy and Catalytic Capability of Nanocrystalline Magnesia." Advanced Materials Research 335-336 (September 2011): 515–18. http://dx.doi.org/10.4028/www.scientific.net/amr.335-336.515.

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Abstract: Objective: To study the antibacterial efficacy and the catalytic capability of nanocrystalline magnesia powder(nano-MgO). Methods: The antibacterial efficacy was evaluated in Bacteriostatic circle and the shake flask test and the catalytic capability was evaluated by paraoxon. Results: The nano-MgO had good antibacterial efficacy and highly catalytic capability. The catalytic capability was not influenced by light. When 50mL 20μg/L paraoxon solution was catalyzed by 0.5g nano-MgO for 5min, the disappearance of paraoxon was about 77.9%, and for 60min, the disappearances of them was 99

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17

Zhu, Ting, Yitong Shou, Xiaoqing Chen, et al. "Shear Behavior of Recycled Fine Aggregate Reinforced by Nano-MgO Modified Cement." Materials 15, no. 20 (2022): 7188. http://dx.doi.org/10.3390/ma15207188.

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In order to study the mechanical modification effect of nano-MgO on cement-reinforced recycled fine aggregate (CRA), direct shear tests and triaxial shear tests were carried out. In the test of recycled fine aggregate reinforced by nano-MgO modified cement (MCRA), the cement content was fixed at 2%, and the nano-MgO content varied between 0%, 0.5%, 1.0%, 1.5% and 2.0%. The test results showed that adding nano-MgO can greatly increase both the direct shear strength and triaxial shear strength of MCRA. This increase in direct shear strength was mainly attributed to the increase in cohesion. Howe

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18

Pakalapati Janaki, Surakasi Raviteja, Sista Deepthi, Pappala Anil Kumar, Chandaka Durga Prasad, and Bhaskara Rao Amiti. "Evaluation of Dielectric Properties of Peanut Oil Biodiesel Mixed with Nano-additives." Journal of Environmental Nanotechnology 13, no. 1 (2024): 111–16. http://dx.doi.org/10.13074/jent.2024.03.241514.

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The main aim of this study is to assess the electrical characteristics pertaining to a biodiesel derived from peanut oil mixed with magnesium oxide (MgO) and zinc oxide (ZnO) nano-additives. After synthesizing biodiesel from peanut oil by the transesterification process, it is combined with MgO and ZnO nano-additives in varying proportions: 100 ppm MgO, 100 ppm ZnO and 50 ppm MgO + 50 ppm ZnO, of the overall volume. The measurement and analysis of biodiesel blends necessitate consideration of crucial electrical parameters, including breakdown voltage, resistivity, permittivity and electrical c

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19

Wang, Yani, Shuai Zhang, Yuanyuan Sun, Xingwu Yang, and Chun Liu. "Effect of Nano-MgO Doping in XLPE on Charge Transport and Electric Field Distribution in Composite Insulation of HVDC Cable Joint." Energies 15, no. 19 (2022): 6948. http://dx.doi.org/10.3390/en15196948.

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The space charge characteristics of cross-linked polyethylene (XLPE) can be improved to some extent by doping the appropriate amount of nano-MgO. In this study, in order to explore the influence of nano-MgO on the space charge and electric field distributions of the composite insulation of high voltage direct current (HVDC) cable joints, the effect of nano-MgO concentration on the depth and density of the deep traps in MgO/XLPE was first analyzed. On this basis, the charge transport simulation model of a 320 kV HVDC cable joint was established with MgO/XLPE as the cable insulation, and the spa

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20

Gómez-Rodríguez, Cristian, Yanet Antonio-Zárate, Josept Revuelta-Acosta, et al. "Research and Development of Novel Refractory of MgO Doped with ZrO2 Nanoparticles for Copper Slag Resistance." Materials 14, no. 9 (2021): 2277. http://dx.doi.org/10.3390/ma14092277.

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This study investigates the corrosion mechanism on 100 wt.% MgO and 95 wt.% MgO with 5 wt.% nano-ZrO2 ceramic composites. First, MgO powder and powder mixtures (MgO + nano ZrO2) were uniaxially and isostatically pressed; then, they were sintered at 1650 °C. Corrosion by copper slag was studied in sintered samples. Physical properties, microstructure, and penetration of the slag in the refractory were studied. Results reveal that ZrO2 nanoparticles enhanced the samples’ densification, promoting grain growth due to diffusion of vacancies during the sintering process. Additionally, magnesia brick

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21

Zulkefle, Habibah, Adillah Nurashikin Arshad, Mohamad Hafiz Mohd Wahid, Lyly Nyl Ismail, Raudah Abu Bakar, and Mohamad Rusop. "Influence of Nano-Filler Loading on the Nano-MgO Dielectrics." Advanced Materials Research 832 (November 2013): 533–36. http://dx.doi.org/10.4028/www.scientific.net/amr.832.533.

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In this study, we investigated the effect of MgO nanofiller content to the dielectric layer properties of nano-MgO film. Nano-MgO film was successfully deposited with particle size in the range of 42 to 92 nm by simple chemical solution technique. The film produced shows some surface modification as the nanofiller content increased. With the nanofiller loading increasing from 0 wt% to 3 wt%, relative permittivity values were varied. NanoMgO films with 1 wt% filler content have high relative permittivity value while film with 2 wt% was good in morphology.

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22

Salleh, Faizah Md, Ahmad K. Yahya, and Mohammad Hafizuddin Haji Jumali. "Enhancing the Sinterability of Chemically-Derived Tl1212 Superconducting Powders Using Nano-Sized MgO as Sintering Aid." Advanced Materials Research 418-420 (December 2011): 914–17. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.914.

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The superconducting Tl0.8Bi0.2Sr2Ca0.8Y0.2Cu2O7powder prepared from chemical route was mixed with varying amounts of nano-sized MgO powders (x=0 to 0.50 wt. %) to form bulk superconducting composites. XRD results show that the addition of 0.15 wt.% nano-MgO is accompanied by an increase in 1212-phase and the disappearance of SrCO3impurity. SEM investigations revealed more regular-shaped and smaller grains microstructure for MgO added samples in contrast to MgO-free sample which revealed irregular shaped grains. EDS showed homogenous distribution of Mg for all MgO-added samples with the excepti

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23

Abdallah, Yasmine, Solabomi Olaitan Ogunyemi, Amro Abdelazez, et al. "The Green Synthesis of MgO Nano-Flowers Using Rosmarinus officinalis L. (Rosemary) and the Antibacterial Activities against Xanthomonas oryzae pv. oryzae." BioMed Research International 2019 (February 17, 2019): 1–8. http://dx.doi.org/10.1155/2019/5620989.

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Recently, the use of herbs in the agriculture and food industry has increased significantly. In particular, Rosmarinus officinalis L. extracts have been reported to have strong antibacterial properties, which depend on their chemical composition. The present study displayed a biological method for synthesis of magnesium oxide (MgO) nano-flowers. The nano-flowers are developed without using any catalyst agent. Aqueous Rosemary extract was used to synthesize MgO nano-flowers (MgONFs) in stirring conditions and temperature at 70°C for 4 h. The mixture solution was checked by UV-Vis spectrum to co

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24

Asgari, Ghorban, Abdolmotaleb Seidmohammadi, Ali Esrafili, Javad Faradmal, Mohammad Noori Sepehr, and Maghsoud Jafarinia. "The catalytic ozonation of diazinon using nano-MgO@CNT@Gr as a new heterogenous catalyst: the optimization of effective factors by response surface methodology." RSC Advances 10, no. 13 (2020): 7718–31. http://dx.doi.org/10.1039/c9ra10095d.

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In this research, the degradation of the insecticide diazinon was studied using a new hybrid catalyst consisting of magnesium oxide nanoparticles (nano-MgO), carbon nanotubes (CNTs), and graphite (Gr), nano-MgO@CNT@Gr, under various experimental conditions.

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Baqi, A. S., N. S. Abed та S. J. Fathi. "Study the effects of MgO nanoparticle addition on superconducting characteristics of Bi1.6 Ag0.4Sr1.9Ba0.1Ca2Cu3O10+δ system". Journal of Ovonic Research 18, № 2 (2022): 273–80. http://dx.doi.org/10.15251/jor.2022.182.273.

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In the present work, impacts adding magnesium oxide (MgO) powders with a mean particle size <100nm to Bi2223 superconducting system have been researched. The bulk samples with a general Bi1.6 Ag0.4Sr1.9Ba0.1Ca2Cu3O10+δ + (MgO)x nominal composition formula (x = 0, 0.1, 0.2, and 0.3wt%) have been made through the traditional solid state reaction approach. Hole concentration (p) and Critical temperature (Tc) of the nano MgO added samples have been specified through 4 probe techniques. X-ray powder diffraction (XRD) measurement has been utilized for examining the formation of the phase, lattice

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Giannakopoulou, Panagiota P., Aikaterini Rogkala, Paraskevi Lampropoulou, Maria Kalpogiannaki, and Petros Petrounias. "Evaluation of Cement Performance Using Industrial Byproducts Such as Nano MgO and Fly Ash from Greece." Applied Sciences 11, no. 24 (2021): 11601. http://dx.doi.org/10.3390/app112411601.

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The need for environmentally friendly construction materials is growing more and more these days. This paper investigates byproducts from Greece, such as magnesite tailings from Evoia and fly ash from Kardia (Ptolemais), in order to evaluate their suitability as cement additives. For this purpose, the raw materials were tested and studied regarding their mineralogical and chemical components for their morphological characteristics. Different cement specimens of various mixtures of raw materials were produced and tested. These raw materials are considered suitable for cement additives. The effe

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Jun, Jin Oh, Joongwon Lee, Ki Hyuk Kang, and In Kyu Song. "Synthesis of Dimethyl Carbonate from Ethylene Carbonate and Methanol Over Nano-Catalysts Supported on CeO2–MgO." Journal of Nanoscience and Nanotechnology 15, no. 10 (2015): 8330–35. http://dx.doi.org/10.1166/jnn.2015.11248.

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A series of CeO2(X)–MgO(1−X) (X = 0, 0.25, 0.5, 0.75, and 1.0) nano-catalysts were prepared by a co-precipitation method for use in the synthesis of dimethyl carbonate from ethylene carbonate and methanol. Among the CeO2(X)–MgO(1−X) catalysts, CeO2(0.25)–MgO(0.75) nano-catalyst showed the best catalytic performance. Alkali and alkaline earth metal oxides (MO = Li2O, K2O, Cs2O, SrO, and BaO) were then supported on CeO2(0.25)–MgO(0.75) by an incipient wetness impregnation method with an aim of improving the catalytic performance of CeO2(0.25)–MgO(0.75). Basicity of the catalysts was determined b

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Habibah, Zulkefle, Adillah Nurashikin Arshad, Ismail Lyly Nyl, Zainal Nurbaya, and Mohamad Rusop Mahmood. "Sol-Gel Derived Nanomagnesium Oxide: Influence of Annealing Temperature on the Dielectric Layer Properties." Advanced Materials Research 667 (March 2013): 307–11. http://dx.doi.org/10.4028/www.scientific.net/amr.667.307.

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Nano-magnesium oxide, MgO film was successfully prepared at various annealing temperatures (400, 450, 500 and 550°C) by using sol-gel method. The behaviour of the MgO as a dielectric layer was investigated in term of its electrical behaviour, relative permittivity and structural properties. The leakage current density obtained was below 10-9 A/cm2 in which is suitable to be used as dielectric layer. Resistivity and relative permittivity values were found to fluctuate with applied annealing temperatures and it was revealed that these changes were related to the surface morphology of the prepare

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SURANI, FERESHTEH, HOSSEIN ABDIZADEH, HAMID REZA BAHARVANDI, and ALI NEMATI. "EFFECT OF MgO NANO PARTICLES ON SINTERING BEHAVIOR OF Al2O3-SiC-MgO NANO COMPOSITES." International Journal of Modern Physics: Conference Series 05 (January 2012): 568–73. http://dx.doi.org/10.1142/s2010194512002486.

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Small amount of MgO in the range of ppm and distribution of SiC particles in Al 2 O 3-10 vol % SiC nanocomposite has an obvious effect on improving of density and mechanical properties such as hardness of sintered nanocomposite. Improving of these properties continues to 1000 ppm of MgO , but decreases above this amount. Transgranularly fractured alumina grains were observed on the fracture surface of this kind of nanocomposites. The effects of such a small amount of MgO on the sintering and microstructural development of Al 2 O 3-10 vol % SiC nanocomposite may be explained using the arguments

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Ohshima, Shigetoshi. "Hetero-Epitaxial Growth of YBCO and MgB2 Thin Films on Decorated Substrates with Nano-Wires and Nano-Particles." MRS Proceedings 1454 (2012): 105–14. http://dx.doi.org/10.1557/opl.2012.1485.

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ABSTRACTSuperconducting NMR pickup coils have to have a low surface resistance (Rs) under a high magnetic field. One way of reducing the Rs of superconducting thin films is adding artificial pins to the films. We examined the hetero-epitaxial growth of MgB2and YBCO thin films on decorated sapphire and MgO substrates while using nano-wires and nano-particles to add pins to the films.We used ZnO nano-wire to add artificial grain boundary pins to MgB2 films. The tilted c-plane sapphire substrate with nano-step edges was used for these substrates. The terrace width with one lattice step edge can b

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Zhang, Keqiang, Yi An, Feng Wang, Lingling Lin, and Haigang Guo. "Experimental investigation on water treatment by the combined nano MgO–nanofiltration technique." Water Science and Technology 63, no. 11 (2011): 2542–46. http://dx.doi.org/10.2166/wst.2011.510.

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A combined system using nano MgO and nanofiltration (NF) membrane was established to purify polluted water in this experiment. The turbidity, permanganate index, UVA254, colony counts and the concentrations of NO3−, NO2−, NH4+, Fe, Mn and Mg of the effluents from each unit of this combined system were measured to investigate the pollutant removal of this system. Based on the results obtained, the combined nano MgO–NF system could efficiently remove many kinds of pollutants in this experiment, including organic matter, nitrogen species, heavy metals, suspended solids and bacteria. And the efflu

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Habibah, Zulkefle, Ismail Lyly Nyl, Raudah Abu Bakar, and Mohamad Rusop Mahmood. "Molarity Effect on the Structural Properties of Nano-MgO Thin Films." Advanced Materials Research 403-408 (November 2011): 1168–72. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.1168.

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Nano-MgO thin films were grown on the cleaned glass substrate via sol-gel spin coating techniques using magnesium acetate tetrahydrate, ethanol and nitric acid. For the thin films deposition, the solutions were prepared at six different molar concentrations (0.1M, 0.2M, 0.4M, 0.6M, 0.8M and 1M). The thickness and roughness of nano-MgO films was found to be increased with an increase of molar concentration. The increment in particle size and agglomerated particles were observed from FESEM (JEOL JSM-J600F) images as the molar concentration increased from 0.1M to 1.0M. The results showed 0.4M nan

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Sadiq, Areej, Mohammed Y. Fattah, and Mohammed F. Aswad. "Enhancement of the Acid Resistance of Silty Clay Using Nano-Magnesium Oxide." Materials 16, no. 14 (2023): 5035. http://dx.doi.org/10.3390/ma16145035.

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Hydrochloric acid is prevalent in numerous industries; leakage of this acid may cause persistent problems in the soil. The study aims to prevent any adverse impact of acid on the strength characteristics of silty clay soil by modifying the soil’s acid resistance. In this study, unconfined compression tests are performed to investigate the strength of contaminated silty clay soil with concentrations of 4%, 8%, and 12% of HCl solution and the strength of treated soil with 0.4%, 0.5%, 0.6%, and 0.8% of nano-magnesium oxide. In addition, the strength of the soil enhanced with nano-MgO contaminated

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Sayyed, M. I., Sabina Yasmin, Nouf Almousa, and Mohamed Elsafi. "Shielding Properties of Epoxy Matrix Composites Reinforced with MgO Micro- and Nanoparticles." Materials 15, no. 18 (2022): 6201. http://dx.doi.org/10.3390/ma15186201.

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The aim of the current study is to investigate the impact of introducing micro- and nanoparticle MgO as a filler into epoxy resin on the radiation shielding abilities of the prepared samples. To this end, we performed a gamma-radiation spectroscopy experiment with the help of an HPGe detector and Am-241, Cs-137, and Co-60 sources. We evaluated the particle size effect (PSE) and detected the maximum PSE value with the addition of 50 wt% MgO particles, indicating that nanoparticle MgO was more successful in shielding against incoming radiation than microparticle MgO. We compared the half-value l

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Idriss, Hajo, M. Habib M. Habib, A. I. Alakhras, and H. M. El Khair. "Nano-sized Metal Oxides and Their use as a Surface Disinfectant Against COVID-19: (Review and Perspective)." Oriental Journal Of Chemistry 38, no. 6 (2022): 1328–37. http://dx.doi.org/10.13005/ojc/380601.

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Contamination of surfaces has long been identified as a significant factor in viral transmission. Therefore, sustained efforts are required to address this issue. This work aims to build a scientific database on nano-sized metal oxides as intelligent materials for surface disinfection against corona viruses, synthesize and characterize nano-sized MgO, and discuss the possibility of using it in virus eradication. The MgO nanoparticle was prepared through the heating method. Meanwhile, XRD diffractometer, Scan electron microscope, and nitrogen adsorption were used to characterize the MgO nanopar

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Dong, Shuangkuai, Songhan Yu, Liangliang Chen, et al. "Comparative Study on the Effects of Five Nano-Metallic Oxide Particles on the Long-Term Mechanical Property and Durability of Cement Mortar." Buildings 13, no. 3 (2023): 619. http://dx.doi.org/10.3390/buildings13030619.

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Nano-metallic oxide particles have been found to be potentially effective microstructural reinforcements for cement mortar and have become a research hotspot in recent years for nano-modification technology of building materials. However, different conclusions have been obtained due to various researchers used different research methods, which have resulted in a deficiency for the performance comparison between different nano-metallic oxide particles. In the present study, the effects of five kinds of nano-metallic oxide particles, namely nano-MgO, nano-Al2O3, nano-ZrO2, nano-CuO, and nano-ZnO

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Rezaii Mofrad, Mohamad Reza, GholamReza Mostafaii, Reza Nemati, Hossein Akbari, and Narges Hakimi. "Removal of methyl orange from synthetic wastewater using nano-MgO and nano-MgO/UV combination." Desalination and Water Treatment 57, no. 18 (2015): 8330–35. http://dx.doi.org/10.1080/19443994.2015.1017744.

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Chen, Min, Cai Yun Lu, and Jing Kun Yu. "Sintering and Performance of MgO-CaO Materials with Nano-Sized ZrO₂ Addition." Materials Science Forum 561-565 (October 2007): 623–26. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.623.

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MgO-CaO materials is one type of the refractories for substitution of MgO-Cr2O3 refractories that has been widely used in metallurgy and cement industries, but the application of MgO-CaO materials has been inhibited for its poor thermal shock resistance that is often improved by addition of ZrO2 but it results in increase of the cost. The present work investigated preparation of MgO-CaO materials by addition of nano-sized ZrO2. The results showed that the densification of the MgO-CaO refractories was promoted and the direct bonding rate of the materials was increased by addition of nano-sized

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Amir, Aqsa, Muhammad Faisal, Muhammad Asif Hussain, Ehsan Ul Haq, Kabeer Raza, and Zaeem ur Rehman. "A facile synthesis of nano-magnesia by ultrasonication assisted co-precipitation method for antibacterial activity." MATEC Web of Conferences 398 (2024): 01037. http://dx.doi.org/10.1051/matecconf/202439801037.

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Magnesium oxide (MgO) nanoparticles found considerable interest from the researcher because of their versatile biocompatible properties and the plethora of applications including anticancer, antimicrobial, antidiabetic, drug delivery, and tissue engineering etc. The growing applications of the MgO nanoparticles necessitate exploring new synthesis routes with faster production rates. Method: In this study, MgO nanoparticles were synthesized by ultrasonication-assisted co-precipitation method and calcined at 800°. MgO nanoparticles were characterized by X-ray diffraction (XRD), scanning electron

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Ayrilmis, Nadir, Elif Yurttas, Esra Yildiz Avsar, et al. "Properties of plastic composites filled with giant reed flour and magnesium oxide nanoparticles." BioResources 20, no. 2 (2025): 2670–86. https://doi.org/10.15376/biores.20.2.2670-2686.

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Wood plastic composites (WPCs) were produced from recycled polypropylene (RPP) matrix, giant reed (GR) flour, and magnesium oxide nanoparticles (nano-MgO). The physical, mechanical, and thermal properties were analyzed. Different amounts of GR flour from 10 wt% to 40 wt%, and nano-MgO from 1.0 wt% to 2 wt% were added into the RPP matrix. The water resistance, mechanical, and thermal properties of the injection molded WPCs were determined according to the ISO standards. The bending and tensile modulus of the WPCs were considerably enhanced with the addition of the GR flour up to 40 wt%, while t

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Zhao, Feiyue, Tingli Tang, Sijie Hou, and Yanchun Fu. "Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-Assembly." Coatings 10, no. 9 (2020): 848. http://dx.doi.org/10.3390/coatings10090848.

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Fire-retardant chitosan/sodium phytate/MgO nanoparticle (CH/SP/nano-MgO) coatings were loaded on a wood substrate via electrostatic layer-by-layer self-assembly and characterized by scanning electron microscopy and energy-dispersive spectrometry. The flammability and thermal degradation of the original wood and wood samples treated with chitosan, chitosan/sodium phytate, chitosan/sodium phytate/MgO nanoparticles were studied by limiting oxygen index (LOI), exposure combustion experiments and thermogravimetric analysis (TGA), respectively. The CH/SP/nano-MgO coating served as an intumescent fir

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Habibah, Zulkefle, N. S. Rahman, M. H. Wahid, et al. "Influence of MgO Molar Concentration to the Properties of Multilayer ZnO/MgO Films Using Sol-Gel Method." Advanced Materials Research 576 (October 2012): 309–13. http://dx.doi.org/10.4028/www.scientific.net/amr.576.309.

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Multilayer ZnO/MgO was successfully deposited using sol-gel spin coating method at different MgO molar concentration. The electrical and dielectric properties of deposited multilayer films were investigated using two point probes I-V measurement and impedance spectroscopy respectively. The resistivity was calculated based on I-V curve obtained and the results show that there is increment in resistivity values from 1.04 x 105Ω.cm to 7.45 x 105Ω.cm as the MgO concentration varied from 0.2M to 1.0M. The growth of multilayer films was measured in term of their thickness using surface profiler. Mor

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Al-Khazzaz, Zeena, Abdulrahman Aldaood, Muwafaq Awad, and Mohammed Faris. "Behavior of clayey soil treated with nano magnesium oxide material." Soils and Rocks 47, no. 1 (2023): e2024014822. http://dx.doi.org/10.28927/sr.2024.014822.

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Clayey soils are spread in many countries and require significant improvement. Recently, nanomaterial have been entered to the geotechnical research as a treatment material. Current study utilized magnesium oxide (MgO) as an additive to enhance swelling potential, compressibility characteristics, and index properties of clayey soil from Mosul city using different content of nano-MgO and under varies curing periods. The results showed that the free swell and swell pressure of the soil specimens have been reduced by 25%, and 19%, respectively for 0.25, and 0.75% content of nano material under 3

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I. Alateyah, A. "Nano indentation and morphology study of the polypropylene and high density polyethylene nanocomposites based on exfoliated graphite Nano platelets/Nano- magnesium oxide." International Journal of Engineering & Technology 7, no. 2 (2018): 891. http://dx.doi.org/10.14419/ijet.v7i2.10901.

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Polypropylene (PP) and high density polyethylene (HDPE) were successfully fabricated using injection molding machine, by the addition of exfoliated graphite nanoplatelets composites reinforced with 2wt.t% of nano-magnesia. The nanoindentation properties and microstructure of the composites were investigated, in the current study. The XRD patterns of both composites showed the peaks of xGnP and n-MgO, where their intensity became stronger with increasing the concentration of xGnP added into both polymers. In addition, the SEM micrographs revealed a good dispersion of fillers within the matrix.

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Liu, Guo Liang, Yan Qi, Yi Min Zhu, and Zhi Jun Ma. "Theoretical Analysis of the FTIR Absorption Characteristic of Nano-Powder." Advanced Materials Research 454 (January 2012): 136–43. http://dx.doi.org/10.4028/www.scientific.net/amr.454.136.

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The infrared absorption behaviors of nano-MgO with different sizes have been investigated based on XRD and IR data. The blue shifts of infrared absorption peaks with the decrease of the particles size have been analyzed by constructing one-dimensional vibration model. Adopting the quantum physics analyzed method, we provide the reasonable explanations for the red shifts of infrared absorption peaks as the average particle size of nano-MgO powder is down to less than 50 nm.

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Reddy, Krishna, Meenakshi Reddy, and Durga Prasad. "Experimental investigation on the influence of nano-fluids used as HTF in PCM based thermal energy storage system." Thermal Science, no. 00 (2020): 60. http://dx.doi.org/10.2298/tsci191004060r.

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The present study investigated the enhancement of energy conservation under the principles of pure substances that exercise phase change throughout charging and discharging processes. This work primarily focused on the thermal energy storage system, where the working medium charges the PCM?s namely (Paraffin wax & stearic acid) that is normally encapsulated in spherical balls. The potentiality in charging of working medium was examined upon blending HTF (heat transfer fluid) with four nano-particles (Al2O3, CuO, TiO2 & MgO). Several volume concentration levels (0.2%, 0.5% and 0.8%) wer

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Xia, Jin Feng, Cai Xia Li, Zheng Wang, Dan Yu Jiang, and Qiang Li. "Preparation of MgO-Partially Stabilized Zirconia Nano-Powder by Coprecipitation Pressing." Key Engineering Materials 492 (September 2011): 89–92. http://dx.doi.org/10.4028/www.scientific.net/kem.492.89.

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Nano-sized 8mol% MgO-PSZ powder was prepared via coprecipitation, Afterwards, the prepared powders were characterized by XRD and SEM technologies. The results clearly demonstrate that the calcined temperature can be feasible for the MgO-ZrO2 composite, crystal structure and particle size.

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Jo, Seung-Ik, Young-In An, Kang-Yeong Kim, et al. "Mechanisms of absorption and desorption of CO2 by molten NaNO3-promoted MgO." Physical Chemistry Chemical Physics 19, no. 8 (2017): 6224–32. http://dx.doi.org/10.1039/c6cp07787k.

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We present details of the mechanism of absorption and desorption of carbon dioxide by molten NaNO<sub>3</sub>-promoted MgO and their implications for the applications of alkali nitrate-promoted MgO absorbents with many repeated absorption and desorption cycles.

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Cheng, Yujia, and Guang Yu. "Power Frequency Breakdown Properties of LDPE-Doped Inorganic Nanoparticles." Molecules 30, no. 9 (2025): 1914. https://doi.org/10.3390/molecules30091914.

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Although polyethylene is widely used in electrical insulation, it does not possess dielectric properties. It is therefore desirable to develop insulation materials with excellent dielectric properties. In this study, low-density polyethylene (LDPE) was used as a matrix resin, while MgO, wollastonite, and montmorillonite (MMT) were employed as inorganic nano-additives. Three composites were prepared using the boiling–melt blending approach. Power frequency breakdown tests were performed on the original LDPE and on the prepared nanoparticle/LDPE composites. Upon combination with the Weibull dist

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Madzokere, Tatenda C., Gey T. Musarurwa, Godcontrols Jere, Trymore Chitambwe, and Haledene Chiririwa. "Adsorptive Recovery of Auro-Dicyanide Anions from Aqueous Solutions using Activated Carbon-Magnesium Oxide (C-MgO) Nanocomposite as Adsorbent." MRS Advances 3, no. 34-35 (2018): 1955–67. http://dx.doi.org/10.1557/adv.2018.314.

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ABSTRACTThe reprocessing of tailings or gold mine waste dumps to extract gold has become an attractive proposition for mining houses worldwide because of the availability of gold which was not easily recovered using old technologies. This study seeks to exploit the novel properties of nanostructured materials in enhancing gold extraction from gold mine tailings. The beneficiation of slimes or tailings involved taking samples for mineralogical studies, synthesis of a novel adsorbent medium (nano C-MgO) prepared by using both chemical and mechano-synthesis methods, oxidative pre-treatment of flo

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