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Journal articles on the topic 'Layered double hydroxide systems'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Pavlovic, Marko, Li Li, Francois Dits, Zi Gu, Monika Adok-Sipiczki, and Istvan Szilagyi. "Aggregation of layered double hydroxide nanoparticles in the presence of heparin: towards highly stable delivery systems." RSC Advances 6, no. 20 (2016): 16159–67. http://dx.doi.org/10.1039/c5ra26072h.

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2

Shi, Wenying, Yi Fu, Zhixiong Li, and Min Wei. "Multiple and configurable optical logic systems based on layered double hydroxides and chromophore assemblies." Chemical Communications 51, no. 4 (2015): 711–13. http://dx.doi.org/10.1039/c4cc08069f.

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3

Hussein, Mohd Zobir, Norashikin Mat Nasir, and Asmah Hj Yahaya. "Controlled Release Compound Based on Metanilate-Layered Double Hydroxide Nanohybrid." Journal of Nanoscience and Nanotechnology 8, no. 11 (2008): 5921–28. http://dx.doi.org/10.1166/jnn.2008.252.

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Metanilate-layered double hydroxide nanohybrid compound was synthesized for controlled release purposes through co-precipitation method of the metal cations and organic anion. The effect of various divalent metal cations (M2+), namely Zn2+, Mg2+ and Ca2+ on the formation of metanilate-LDH nanohybrids, in which metanilate anion was intercalated into three different layered double hydroxide (LDH) systems; Zn-Al, Mg-Al and Ca-Al were investigated. The syntheses were carried out with M2+ to Al3+ initial molar ratio, R of 4. The pH of the mother liquor was maintained at pH 7.5 and 10 during the syn

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4

Cheng, Shu, Luhua Shao, Jianhong Ma, et al. "Simultaneous removal of phosphates and dyes by Al-doped iron oxide decorated MgAl layered double hydroxide nanoflakes." Environmental Science: Nano 6, no. 8 (2019): 2615–25. http://dx.doi.org/10.1039/c9en00520j.

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5

Miao, Yue-E., Hong Zhu, Dan Chen, Ruiyu Wang, Weng Weei Tjiu, and Tianxi Liu. "Electrospun fibers of layered double hydroxide/biopolymer nanocomposites as effective drug delivery systems." Materials Chemistry and Physics 134, no. 2-3 (2012): 623–30. http://dx.doi.org/10.1016/j.matchemphys.2012.03.041.

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6

Alcântara, A. C. S., P. Aranda, M. Darder, and E. Ruiz-Hitzky. "Bionanocomposites based on alginate–zein/layered double hydroxide materials as drug delivery systems." Journal of Materials Chemistry 20, no. 42 (2010): 9495. http://dx.doi.org/10.1039/c0jm01211d.

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7

Kim, Gwangmok, and Sangwon Park. "Chloride Removal of Calcium Aluminate-Layered Double Hydroxide Phases: A Review." International Journal of Environmental Research and Public Health 18, no. 6 (2021): 2797. http://dx.doi.org/10.3390/ijerph18062797.

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Chlorine is a critical element with respect to the use of fossil fuel, recycling of industrial wastes, and water purification. Chlorine could form toxic chemical compounds, corrode pipe systems and boilers, and contaminate surface and ground waters. Calcium aluminate-layered double hydroxides are one of the most promising materials to remove chlorides due to the chemisorption mechanism, since the phases have positively charged interlayers. Many studies on the synthesis and the characterization of calcium aluminate-layered double hydroxides have been extensively conducted, whereas few studies h

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8

Rocha, Michele A., Philippe A. D. Petersen, Erico Teixeira-Neto, et al. "Layered double hydroxide and sulindac coiled and scrolled nanoassemblies for storage and drug release." RSC Advances 6, no. 20 (2016): 16419–36. http://dx.doi.org/10.1039/c5ra25814f.

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Systems comprising anti-inflammatory sulindac intercalated into biocompatible layered double hydroxides nanovehicles were isolated through one pot synthetic method and showed high crystallinity and curled or scrolled particles.

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9

Salguero, Yadira, Mónica Cristina García, Giuliana Mosconi, and Ricardo Rojas. "Structural and morphological aspects of (fluoro)quinolone delivery by layered double hydroxide nanoparticles." New Journal of Chemistry 42, no. 23 (2018): 19144–52. http://dx.doi.org/10.1039/c8nj03072c.

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10

Panda, H. S., R. Srivastava, and D. Bahadur. "Shape and Size Control of Nano Dispersed Mg/Al Layered Double Hydroxide." Journal of Nanoscience and Nanotechnology 8, no. 8 (2008): 4218–23. http://dx.doi.org/10.1166/jnn.2008.an22.

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Controlling the shape and size of the layered inorganic–organic hybrid particles is a challenge with conventional methods of synthesis. The co-precipitation method has been modified to synthesize Mg/Al Layered double hydroxide by controlling the particle growth using ultrasonic wave at the time of nucleation. In this project, magnesium and aluminum ions were considered as model systems with carbonate anion as intercalating agent. The resulting particles are compared with those of LDHs produced by conventional co-precipitation method at constant pH. Powder X-ray diffraction confirmed formation

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11

del Arco, Margarita, Daniel Carriazo, Cristina Martín, Amalia M. Pérez Grueso, and Vicente Rives. "Characterization of Chromate-Intercalated Layered Double Hydroxides." Materials Science Forum 514-516 (May 2006): 1541–45. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.1541.

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PXRD (powder x-ray diffraction), FT-IR (Fourier Transform infrared), N2 adsorption at - 196 °C and TG/DTA (thermogravimetric and differential thermal analyses) techniques have been used for characterisation of MgAl- and ZnAl-CrO4 LDHs, which had been prepared by the ion exchange method from the corresponding chloride LDH (layered double hydroxides) precursors. The results indicates that the oxometalate intercalation in both systems produces interlayer microporosity and a basal spacing of 8.7 Å; This gallery height decreases when the samples are calcined in the temperature range 100-300 °C, due

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12

Kovalenko, Vadym, and Valerii Kotok. "“Smart” anticorrosion pigment based on layered double hydroxide: construction and characterization." Eastern-European Journal of Enterprise Technologies 4, no. 12 (100) (2019): 23–30. http://dx.doi.org/10.15587/1729-4061.2019.176690.

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13

Zhang, Kai, Zhi Xu, Ji Lu, et al. "Potential for Layered Double Hydroxides-Based, Innovative Drug Delivery Systems." International Journal of Molecular Sciences 15, no. 5 (2014): 7409–28. http://dx.doi.org/10.3390/ijms15057409.

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14

Somosi, Zoltán, Marko Pavlovic, István Pálinkó, and István Szilágyi. "Effect of Polyelectrolyte Mono- and Bilayer Formation on the Colloidal Stability of Layered Double Hydroxide Nanoparticles." Nanomaterials 8, no. 12 (2018): 986. http://dx.doi.org/10.3390/nano8120986.

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Sequential adsorption of polyelectrolytes on nanoparticles is a popular method to obtain thin films after deposition. However, the effect of polyelectrolyte multilayer formation on the colloidal stability of the nanoparticles has not been studied in detail. In the present work, layered double hydroxides (LDH) were synthesized and interaction with oppositely and like-charged polyelectrolytes was investigated. Electrophoretic and light scattering measurements revealed that colloidal stability of LDH can be tuned by adsorption of poly(styrene sulfonate) (PSS) on the oppositely charged LDH surface

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15

Liu, Xiaobo, Shuang Lu, Zhen Tang, Zhaojia Wang, and Tianyong Huang. "Removal of sulfate from aqueous solution using Mg–Al nano-layered double hydroxides synthesized under different dual solvent systems." Nanotechnology Reviews 10, no. 1 (2021): 117–25. http://dx.doi.org/10.1515/ntrev-2021-0012.

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Abstract Because of its priority to remove anions, nano-layered double hydroxide (LDH) was incorporated to improve the sulfate attack corrosion resistance of cement-based materials. Herein, the synthesis of high-efficiency LDH for removal of SO 4 2 − {\text{SO}}_{4}^{2-} is necessary. In this study, LDH with different Mg/Al ratios was synthesized under different dual solvent systems (water and ethylene glycol/ethanol/tetrapropylammonium hydroxide). Based on the adsorption experimental results, the LDH synthesized with n(Mg:Al) = 2:1 under water and ethanol solvent systems (ET2.0) exhibits the

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16

Wiesen, Sebastian, Nils Tippkötter, Kai Muffler, et al. "Adsorption of fatty acids to layered double hydroxides in aqueous systems." Adsorption 21, no. 6-7 (2015): 459–66. http://dx.doi.org/10.1007/s10450-015-9686-4.

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17

Iqbal, Muhammad Ahsan, Luyi Sun, Allyson T. Barrett, and Michele Fedel. "Layered Double Hydroxide Protective Films Developed on Aluminum and Aluminum Alloys: Synthetic Methods and Anti-Corrosion Mechanisms." Coatings 10, no. 4 (2020): 428. http://dx.doi.org/10.3390/coatings10040428.

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This work reviews the characteristics of layered double hydroxides (LDHs) in the context of protective thin films to enhance the corrosion resistance properties of aluminum alloys. A discussion is made in detail about the LDH protection mechanism and the effect of synthesis approaches on LDH structural variations and the corresponding anti-corrosion behavior. LDHs anion-exchange behavior to host inorganic/organic anions makes them a potential material to investigate for anti-corrosion film. This unique advantage and the availability of a wide range of metal oxide-based layers, interlayer anion

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18

Lu, Mingsheng, Zhi Shan, Kori Andrea, et al. "Chemisorption Mechanism of DNA on Mg/Fe Layered Double Hydroxide Nanoparticles: Insights into Engineering Effective SiRNA Delivery Systems." Langmuir 32, no. 11 (2016): 2659–67. http://dx.doi.org/10.1021/acs.langmuir.5b04643.

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19

Yan, Dongpeng, Jun Lu, Min Wei, David G. Evans, and Xue Duan. "Recent advances in photofunctional guest/layered double hydroxide host composite systems and their applications: experimental and theoretical perspectives." Journal of Materials Chemistry 21, no. 35 (2011): 13128. http://dx.doi.org/10.1039/c1jm11594d.

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20

Rizescu, Claudiu Eduard, Dan Adrian Vasile, Diana Alexandra Minea, et al. "Layered Double Hydroxides as Consolidants and Anion Absorbents for Heritage Conservation." Proceedings 57, no. 1 (2020): 84. http://dx.doi.org/10.3390/proceedings2020057084.

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21

Kovalenko, Vadym, and Valerii Kotok. "Bifuctional indigocarminintercalated NiAl layered double hydroxide: investigation of characteristics for pigment and supercapacitor application." Eastern-European Journal of Enterprise Technologies 2, no. 12 (104) (2020): 30–39. http://dx.doi.org/10.15587/1729-4061.2020.201282.

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22

Grafova, Iryna A., Andrei V. Grafov, Umberto Costantino, Fabio Marmottini, and Marcos L. Dias. "Layered Double Hydroxides as Supports for Norbornene Addition Polymerisation Catalysts." Zeitschrift für Naturforschung B 58, no. 11 (2003): 1069–74. http://dx.doi.org/10.1515/znb-2003-1106.

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Abstract Addition polymerisation of norbornene with transition metal catalysts activated by methylaluminoxane was first realised on heterogeneous catalytic systems. Advanced inorganic functional polymers possessing anion-exchange properties - layered double hydroxides of Al and Zn of hydrotalcitetype - were applied as supports. They possess high polarity and are selective towards polar molecules like organometallic compounds. The activity of immobilised nickel catalysts was found to be higher than that of the homogeneous one. A certain catalytic activity was also found for group 4 phthalocyani

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23

KAWAMURA, Katsuyuki. "Molecular Dynamics Simulation of Layerd Double Hydroxide (LDH) Mineral: Hydrotalcite and Water Systems." Journal of Computer Chemistry, Japan 14, no. 4 (2015): 131–38. http://dx.doi.org/10.2477/jccj.2015-0012.

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24

He, Haitong, Jun Gu, Xiaomeng Liu, et al. "Improvement of Trisodium Citrate-Modified NiFe-Layered Double Hydroxide Nanosheets with Carbon Black for Oxygen Evolution Reaction." Catalysts 10, no. 4 (2020): 431. http://dx.doi.org/10.3390/catal10040431.

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The pursuit of highly active and cost-effective catalysts toward oxygen evolution reaction (OER) is a crucial strategy to resolve the imminent energy crisis. NiFe layered double hydroxide (NiFe LDH) is acknowledged as one of the most promising OER electrocatalysts in alkaline electrolytes. Herein, we report a novel stepwise approach to synthesize NiFe LDHs materials merging with carbon black (CB) via trisodium citrate (TC), modifying toward OER. Benefiting from the inimitable wrapped structure, the decreased size of porous nanosheets and the superconductivity of CB substrate, NiFe LDHs/CB-TC p

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25

Naseem, Sajid, Sunil P. Lonkar, Andreas Leuteritz, and Frederick J. W. J. Labuschagné. "Different transition metal combinations of LDH systems and their organic modifications as UV protecting materials for polypropylene (PP)." RSC Advances 8, no. 52 (2018): 29789–96. http://dx.doi.org/10.1039/c8ra05447a.

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26

Lerner, Dan A., Sylvie Bégu, Anne Aubert-Pouëssel, et al. "Synthesis and Properties of New Multilayer Chitosan@layered Double Hydroxide/Drug Loaded Phospholipid Bilayer Nanocomposite Bio-Hybrids." Materials 13, no. 16 (2020): 3565. http://dx.doi.org/10.3390/ma13163565.

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A novel bio-hybrid drug delivery system was obtained involving a Mg/Al-NO3 layered double hydroxide (LDH) intercalated either with ibuprofenate anions (IBU) or a phospholipid bilayer (BL) containing a neutral drug, i.e., 17β-estradiol, and then embedded in chitosan beads. The combination of these components in a hierarchical structure led to synergistic effects investigated through characterization of the intermediates and the final bio-composites by XRD, TG, SEM, and TEM. That allowed determining the presence and yield of IBU and of BL in the interlayer space of LDH, and of the encapsulated L

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27

Gong, Jingming, Ting Liu, Xiaoqing Wang, Xianluo Hu, and Lizhi Zhang. "Efficient Removal of Heavy Metal Ions from Aqueous Systems with the Assembly of Anisotropic Layered Double Hydroxide Nanocrystals@Carbon Nanosphere." Environmental Science & Technology 45, no. 14 (2011): 6181–87. http://dx.doi.org/10.1021/es200668q.

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28

Bernhardt, Harold. "Making Molecules with Clay: Layered Double Hydroxides, Pentopyranose Nucleic Acids and the Origin of Life." Life 9, no. 1 (2019): 19. http://dx.doi.org/10.3390/life9010019.

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A mixture of sugar diphosphates is produced in reactions between small aldehyde phosphates catalysed by layered double hydroxide (LDH) clays under plausibly prebiotic conditions. A subset of these, pentose diphosphates, constitute the backbone subunits of nucleic acids capable of base pairing, which is not the case for the other products of these LDH-catalysed reactions. Not only that, but to date no other polymer found capable of base pairing—and therefore information transfer—has a backbone for which its monomer subunits have a plausible prebiotic synthesis, including the ribose-5-phosphate

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29

Jin, Song, Kangping Cui, Paul H. Fallgren, Michael A. Urynowicz, and Jiazhong Jian. "Removal of guar and humus from water by layered double hydroxides." Water Science and Technology 59, no. 8 (2009): 1641–47. http://dx.doi.org/10.2166/wst.2009.164.

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Natural organic matter such as guar and humus are recalcitrant to conventional pretreatment technologies and can potentially foul processes such as membranes during water treatment. An innovative method of using synthetic layered double hydroxides (LDH) was investigated for removing common natural organic matter in the form of guar gum (GG) and humic acid (HA) from water. Adsorption isotherms were evaluated with Langmuir and Freundlich models. Results show the affinity of GG and HA to LDH to be 11.31 and 9.33 mg g−1 LDH, respectively. Kinetic isotherms indicate that the sorbing rates of LDH to

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30

Yamaguchi, Naoko, Kiyoharu Tadanaga, and Masahiro Tatsumisago. "Direct Formation of Zn-Al Layered Double Hydroxide Thin Films Intercalated with Various Organic Anions through the Sol-Gel Method with Hot Water Treatment." Solid State Phenomena 124-126 (June 2007): 635–38. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.635.

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Zn-Al layered double hydroxide (LDH) thin films intercalated with various organic anions were prepared by immersion of sol-gel derived amorphous Al2O3-ZnO thin films in hot water containing organic salts like sodium dodecyl sulfate (SDS), sodium p-toluenesulfonate, and benzenecarboxylates. In all the systems, extended interlayer spacing of the Zn-Al LDH was observed after immersion in distilled water with the organic salts in comparison to the LDH with carbonate anions, indicating that we have succeeded in direct formation of Zn-Al LDH films with various organic anions on the substrates. It is

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31

Wei, Min, Xue Duan, and Mingfei Shao. "Recent advances in energy storage and conversion systems based on layered double hydroxides materials." SCIENTIA SINICA Chimica 45, no. 2 (2015): 109–23. http://dx.doi.org/10.1360/n032014-00056.

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32

Trukawka, Martyna, Krzysztof Cendrowski, Wojciech Konicki, and Ewa Mijowska. "Folic Acid/Methotrexate Functionalized Mesoporous Silica Nanoflakes from Different Supports: Comparative Study." Applied Sciences 10, no. 18 (2020): 6465. http://dx.doi.org/10.3390/app10186465.

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Herein, we present a facile synthesis route for the mesoporous silica nanoflakes on two types of templates and evaluate their potential as potential drug delivery systems. Silica materials are attractive due to their biocompatibility, low cytotoxicity, high surface area, and tunable pores. In addition, they can be multifunctionalized. These properties were used to create multifunctional drug delivery systems combining folic acid as a target molecule and methotrexate (MTX) as an anticancer drug. The silica nanoflakes were formed using graphene oxide and double-layered hydroxide as templates, re

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33

Zhan, Tianrong, Yumei Zhang, Qi Yang, Huanhuan Deng, Jie Xu, and Wanguo Hou. "Ultrathin layered double hydroxide nanosheets prepared from a water-in-ionic liquid surfactant-free microemulsion for phosphate removal from aquatic systems." Chemical Engineering Journal 302 (October 2016): 459–65. http://dx.doi.org/10.1016/j.cej.2016.05.073.

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34

Tomboc, Gracita M., Jun Kim, Yunting Wang, et al. "Hybrid layered double hydroxides as multifunctional nanomaterials for overall water splitting and supercapacitor applications." Journal of Materials Chemistry A 9, no. 8 (2021): 4528–57. http://dx.doi.org/10.1039/d0ta11606h.

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35

Kovalenko, Vadym, and Valerii Kotok. "Tartrazine-intercalated Zn–Al layered double hydroxide as a pigment for gel nail polish: synthesis and characterisation." Eastern-European Journal of Enterprise Technologies 3, no. 12 (105) (2020): 29–37. http://dx.doi.org/10.15587/1729-4061.2020.205607.

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36

Jha, Jay M., Ishita Sarkar, Samarshi Chakraborty, Surjya K. Pal, and Sudipto Chakraborty. "Heat transfer from a hot moving steel plate by using Cu-Al layered double hydroxide nanofluid based air atomized spray." Experimental Heat Transfer 30, no. 6 (2017): 500–516. http://dx.doi.org/10.1080/08916152.2017.1312638.

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37

Shi, Wei, Jingbo Yu, Zhijiang Jiang, Qiaoling Shao, and Weike Su. "Encaging palladium(0) in layered double hydroxide: A sustainable catalyst for solvent-free and ligand-free Heck reaction in a ball mill." Beilstein Journal of Organic Chemistry 13 (August 14, 2017): 1661–68. http://dx.doi.org/10.3762/bjoc.13.160.

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In this paper, the synthesis of a cheap, reusable and ligand-free Pd catalyst supported on MgAl layered double hydroxides (Pd/MgAl-LDHs) by co-precipitation and reduction methods is described. The catalyst was used in Heck reactions under high-speed ball milling (HSBM) conditions at room temperature. The effects of milling-ball size, milling-ball filling degree, reaction time, rotation speed and grinding auxiliary category, which would influence the yields of mechanochemical Heck reactions, were investigated in detail. The characterization results of XRD, ICP–MS and XPS suggest that Pd/MgAl-LD

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38

Zhu, Zebing, Mingxue Xiang, Peng Li, Lili Shan, and Ping Zhang. "Surfactant-modified three-dimensional layered double hydroxide for the removal of methyl orange and rhodamine B: Extended investigations in binary dye systems." Journal of Solid State Chemistry 288 (August 2020): 121448. http://dx.doi.org/10.1016/j.jssc.2020.121448.

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39

Foruzin, Leila Jafari, Zolfaghar Rezvani, and Kamellia Nejati. "Preparation of two-color photoluminescence emission based on azo dye-layered double hydroxide systems and controlling photoluminescence properties of Allura Red AC." Journal of the Iranian Chemical Society 15, no. 12 (2018): 2649–58. http://dx.doi.org/10.1007/s13738-018-1453-5.

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40

Luca, Alina Costina, Letitia Doina Duceac, Geta Mitrea, et al. "Antibiotic Encapsulated Nanomaterials with Application in Medical Area." Materiale Plastice 55, no. 4 (2018): 552–54. http://dx.doi.org/10.37358/mp.18.4.5072.

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Novel materials belonging to the class of anionic clays are synthesized by investigating their properties at nano scale. Thus, hydrotalcites or layered double hydroxides (LDHs) were used as drug delivery carriers in order to prevent or to treat infections produced by some pathogen agents. Their physical and chemical properties allow them to include different molecules in the interlayer space and then to ensure their transport to the target. The current work reveals the obtaining of nanohybrid compounds type amoxicillin/clavulanic acid-layered double hydroxides (Amox/CA-LDHs) followed by struct

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41

Hadnadjev-Kostic, Milica, Tatjana Vulic, and Radmila Marinkovic-Neducin. "A study of thermally activated Mg-Fe layered double hydroxides as potential environmental catalysts." Journal of the Serbian Chemical Society 75, no. 9 (2010): 1251–57. http://dx.doi.org/10.2298/jsc100115092h.

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Layered double hydroxides (LDHs) and mixed oxides derived after thermal decomposition of LDH with different Mg-Fe content were investigated. These materials were chosen because of the possibility to tailor their various properties, such as ion-exchange capability, redox and acid-base properties and surface area. Layered double hydroxides, [Mg1-x Fex (OH)2](CO3)x/2 ? m H2O, (where x presents the content of trivalent ions, x = M(III)/[M(II) + M(III)]) were synthesized, using low supersaturation precipitation method. The influence of different Mg/Fe ratio on the structure and surface properties o

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42

Chitravathi, S., Surender Kumar, and N. Munichandraiah. "NiFe-layered double hydroxides: a bifunctional O2 electrode catalyst for non-aqueous Li–O2 batteries." RSC Advances 6, no. 105 (2016): 103106–15. http://dx.doi.org/10.1039/c6ra19054e.

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An improved Li–O<sub>2</sub> battery that exhibited a lower voltage gap and better cycle performance using NiFe-LDH. This result, although preliminary opens-up the possibilities of using LDHs as a promising catalyst for Li–O<sub>2</sub> battery systems.

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43

Budzulyak, I. M., B. I. Rachiy, V. M. Vashchynsky, and M. V. Berkeschuk. "Specific Capacitance Characteristics of Carbons, Activated by Potassium Hydroxide." Фізика і хімія твердого тіла 16, no. 1 (2015): 98–103. http://dx.doi.org/10.15330/pcss.16.1.98-106.

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This work is devoted to the study of the charge accumulation in the electric double layer on the polarized electrode of the electrochemical systems. A series of samples of the nanoporous carbon material obtained from natural raw materials. In order to improve its performance it has been made the modification of porous structure of the samples by thermal and chemical treatment. As an activator potassium hydroxide was used. Determination of the specific characteristics of ultracapacitors was conducted in a two-electrode cells by potentiodynamic and galvanostatic methods. The pore formation proce

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44

Stamate, Pavel, Zavoianu, and Marcu. "Highlights on the Catalytic Properties of Polyoxometalate-Intercalated Layered Double Hydroxides: A Review." Catalysts 10, no. 1 (2020): 57. http://dx.doi.org/10.3390/catal10010057.

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Layered double hydroxides (LDH) are an extended class of two-dimensional anionic materials that are known for their unique lamellar structure, versatile composition, and tunable properties. The layered architecture allows the intercalation between the positively charged sheets of a vast variety of anionic species, including oxometalates and polyoxometalates (POM). The hybrid composites that were developed using POM and LDH show great advantages when compared to both parent materials causing the appearance of new functionalities, which may lead to remarkable contributions in many areas of appli

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45

Zhao, Ling-Xi, Ming-Chao Jiang, Ling-Yu Luan, Qing Li, and Jing Zhang. "Examination of current adsorption models for Pb(II) and Cu(II) adsorption onto Fe3O4@Mg2Al-NO3 Layered Double Hydroxide in aqueous solution." Adsorption Science & Technology 36, no. 1-2 (2017): 669–83. http://dx.doi.org/10.1177/0263617417714166.

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The adsorption of Pb(II) and Cu(II) onto Fe3O4@Mg2Al-NO3 Layered Double Hydroxide (LDH) as a function of Fe3O4@Mg2Al-NO3 LDH concentration was studied. An adsorbent concentration effect ( Cs effect), namely adsorption isotherm declines as adsorbent concentration ( Cs) increases, was observed. The experimental data were fitted to the adsorption models including the classic Freundlich model, the metastable-equilibrium adsorption theory, the flocculation model, the power function model, and the surface component activity model. The results show that the Freundlich-type metastable-equilibrium adso

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46

Smalenskaite, A., M. M. Kaba, I. Grigoraviciute-Puroniene, et al. "Sol–Gel Synthesis and Characterization of Coatings of Mg-Al Layered Double Hydroxides." Materials 12, no. 22 (2019): 3738. http://dx.doi.org/10.3390/ma12223738.

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In this study, new synthetic approaches for the preparation of thin films of Mg-Al layered double hydroxides (LDHs) have been developed. The LDHs were fabricated by reconstruction of mixed-metal oxides (MMOs) in deionized water. The MMOs were obtained by calcination of the precursor gels. Thin films of sol–gel-derived Mg-Al LDHs were deposited on silicon and stainless-steel substrates using the dip-coating technique by a single dipping process, and the deposited film was dried before the new layer was added. Each layer in the preparation of the Mg-Al LDH multilayers was separately annealed at

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Tarasenko, Evgenia A., Irina G. Ryltsova, Maksim N. Yapryntsev, Yevgenia Yu Nakisko, Sofya N. Dudina, and Olga E. Lebedeva. "Sorption properties of composite materials with a core-shell structure containing layered double hydroxides in the shell." Butlerov Communications 62, no. 4 (2020): 62–71. http://dx.doi.org/10.37952/roi-jbc-01/20-64-2-62.

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The work is devoted to the study of the sorption properties of hierarchical composite materials with a core-shell structure. The composites contained a core of SiO2 or Fe3O4@SiO2 obtained by sol-gel synthesis, on the surface of which a layered double hydroxide (MgAlFe-LDH) was deposited. The phase composition of the obtained materials was determined, and the textural characteristics and particle morphology were studied. It was found that hierarchical materials had larger surface and demonstrated high sorption capacity towards both cationic and anionic dyes in aqueous solution in comparison wit

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Arratia-Quijada, Jenny, Cecilia Sánchez Jiménez, Andrey Gurinov, Armando Pérez Centeno, Israel Ceja Andrade, and Gregorio Guadalupe Carbajal Arízaga. "Dysprosium-containing layered double hydroxides nanoparticles intercalated with biologically active species as an approach for theranostic systems." Materials Science and Engineering: B 203 (January 2016): 7–12. http://dx.doi.org/10.1016/j.mseb.2015.10.004.

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Kovalenko, Vadym, and Valerii Kotok. "Determination of the applicability of ZnAl layered double hydroxide, intercalated by food dye Orange Yellow S, as a cosmetic pigment." Eastern-European Journal of Enterprise Technologies 5, no. 12 (107) (2020): 81–89. http://dx.doi.org/10.15587/1729-4061.2020.214847.

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Pigna, Massimo, Antonio Violante, and Antonio Giandonato Caporale. "A Comparison among Synthetic Layered Double Hydroxides (LDHs) as Effective Adsorbents of Inorganic Arsenic from Contaminated Soil–Water Systems." Soil Systems 4, no. 2 (2020): 37. http://dx.doi.org/10.3390/soilsystems4020037.

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The need for cost-effective adsorbents of inorganic arsenic (As(III) and As(V)) stimulates the academia to synthesize and test novel materials that can be profitably applied at large-scale in most affected areas worldwide. In this study, four different layered double hydroxides (Cu-Al-, Mg-Al-, Mg-Fe- and Zn-Al-LDH), previously synthesized and studied for As(III) removal capacity, were evaluated as potential adsorbents of As(V) from contaminated systems, in absence or presence of common inorganic anions (Cl−, F−, SO42−, HCO3− and H2PO4−). The As(V) desorption by H2PO4− was also assessed. Lastl

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