Relevant bibliographies by topics / ZnFe2O4 Nanoparticles

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'ZnFe2O4 Nanoparticles'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "ZnFe2O4 Nanoparticles"

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Rodionovs, Pavels, Jānis Grabis, and Aija Krūmiņa. "Microwave-Assisted Hydrothermal Synthesis of ZnFe2O4/TiO2 Composite and Photocatalytic Properties." Key Engineering Materials 788 (November 2018): 102–7. http://dx.doi.org/10.4028/www.scientific.net/kem.788.102.

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In order to improve TiO2 photocatalytic activity ZnFe2O4/TiO2 nanocomposites with different ZnFe2O4 mass loading were produced. Obtained ZnFe2O4 nanoparticles were coupled with TiO2 via microwave-assisted hydrothermal method in order to improve photon absorption in a range of visible light. Prepared nanostructures were characterized with scanning electron microscopy and X-ray diffraction. Photocatalytic activity of prepared samples was investigated by degradation of methylene blue under different light sources – LED, Hg and Osram Vitalux lamps. ZnFe2O4 consists of spherical nanoparticles with
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Wang, Yuhang, Hongxia Yan, and Qiuyu Zhang. "Graphene–Magnetic Spinel Ferrite Nanocomposite: Facile Synthesis and Excellent Photocatalytic Performance." Australian Journal of Chemistry 72, no. 4 (2019): 267. http://dx.doi.org/10.1071/ch18432.

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Spinel ferrite structured ZnFe2O4 nanoparticles anchored on reduced graphene oxide (rGO) sheets have been prepared via a facile hydrothermal method combined with a solvothermal approach. For the synthesis of the ZnFe2O4/rGO nanocomposites, the rGO nanosheet contains epoxy functional groups serving as the active sites, which allowed the formation of uniform ZnFe2O4 nanoparticles. Due to the structure of the ZnFe2O4/RGO nanocomposites, the aggregation of the ZnFe2O4 nanoparticles can be readily disrupted and electronic transfer through the rGO nanosheets is accelerated. This could in turn enhanc
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Afzal, Adeel, Adnan Mujahid, Naseer Iqbal, Rahat Javaid, and Umair Yaqub Qazi. "Enhanced High-Temperature (600 °C) NO2 Response of ZnFe2O4 Nanoparticle-Based Exhaust Gas Sensors." Nanomaterials 10, no. 11 (2020): 2133. http://dx.doi.org/10.3390/nano10112133.

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Fabrication of gas sensors to monitor toxic exhaust gases at high working temperatures is a challenging task due to the low sensitivity and narrow long-term stability of the devices under harsh conditions. Herein, the fabrication of a chemiresistor-type gas sensor is reported for the detection of NO2 gas at 600 °C. The sensing element consists of ZnFe2O4 nanoparticles prepared via a high-energy ball milling and annealed at different temperatures (600–1000 °C). The effects of annealing temperature on the crystal structure, morphology, and gas sensing properties of ZnFe2O4 nanoparticles are stud
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Dhal, Jyoti Prakash, Amit Sahoo, and Achyuta Nanda Acharya. "Flake shaped ZnFe2O4 nanoparticles: synthesis, characterization and visible light induced photocatalytic study." Emerging Materials Research 12, no. 2 (2023): 1–8. http://dx.doi.org/10.1680/jemmr.22.00184.

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Flake shaped ZnFe2O4 nanoparticles have successfully been prepared by co-precipitation method. The phase and crystallinity of the synthesised ZnFe2O4 nanoparticles were studied by XRD. The SEM result reveals that the flake shaped entities are formed by the combination of rod-shaped nanomaterial. The band gap of the synthesised ZnFe2O4 nanoparticles is found to be ∼ 2.14 eV by UV-Vis DRS measurements indicating thereby that this material absorbs visible light (λmax = 579.37 nm). The ferrite nanoparticles were successfully employed as a photocatalytic materials for the degradation of the dye Mal
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Mo, Xiaoyao, Guangxu Xu, Xiaochan Kang, et al. "A Facile Microwave Hydrothermal Synthesis of ZnFe2O4/rGO Nanocomposites for Supercapacitor Electrodes." Nanomaterials 13, no. 6 (2023): 1034. http://dx.doi.org/10.3390/nano13061034.

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As a typical binary transition metal oxide, ZnFe2O4 has attracted considerable attention for supercapacitor electrodes due to its high theoretical specific capacitance. However, the reported synthesis processes of ZnFe2O4 are complicated and ZnFe2O4 nanoparticles are easily agglomerated, leading to poor cycle life and unfavorable capacity. Herein, a facile microwave hydrothermal process was used to prepare ZnFe2O4/reduced graphene oxide (rGO) nanocomposites in this work. The influence of rGO content on the morphology, structure, and electrochemical performance of ZnFe2O4/rGO nanocomposites was
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Yadav, Raghvendra Singh, Anju, Thaiskang Jamatia, et al. "Superparamagnetic ZnFe2O4 Nanoparticles-Reduced Graphene Oxide-Polyurethane Resin Based Nanocomposites for Electromagnetic Interference Shielding Application." Nanomaterials 11, no. 5 (2021): 1112. http://dx.doi.org/10.3390/nano11051112.

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Superparamagnetic ZnFe2O4 spinel ferrite nanoparticles were prepared by the sonochemical synthesis method at different ultra-sonication times of 25 min (ZS25), 50 min (ZS50), and 100 min (ZS100). The structural properties of ZnFe2O4 spinel ferrite nanoparticles were controlled via sonochemical synthesis time. The average crystallite size increases from 3.0 nm to 4.0 nm with a rise of sonication time from 25 min to 100 min. The change of physical properties of ZnFe2O4 nanoparticles with the increase of sonication time was observed. The prepared ZnFe2O4 nanoparticles show superparamagnetic behav
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Sripriya, R. C., B. Vigneaswari, and Victor Antony Raj. "Comparative Studies of Magneto-Optical and Photocatalytic Properties of Magnetically Recyclable Spinel ZnFe2O4 Nanostructures by Combustion Methods." International Journal of Nanoscience 18, no. 02 (2019): 1850020. http://dx.doi.org/10.1142/s0219581x18500205.

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Spinel ZnFe2O4 nanoparticles (NPs) were successfully synthesized by a simple microwave irradiation method (MIM) using glycine as the fuel. For the comparative study purpose, it was also prepared by conventional heating (CHM) method. Powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR), high resolution scanning electron microscope (HR-SEM), high resolution transmission electron microscope (HR-TEM), energy dispersive X-ray (EDX) spectra, selected area electron diffraction (SAED) analysis showed that the samples were pure phase spinel ZnFe2O4 nanoparticles-like morphology without an
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Qi, Shu Yan, Ming Chen, Xiao Hu Liu, and Huan Yan Xu. "Preparation and Photocatalytic Activity of Gold Nanoparticles (AuNPs)/ZnFe2O4." Applied Mechanics and Materials 618 (August 2014): 198–202. http://dx.doi.org/10.4028/www.scientific.net/amm.618.198.

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Gold nanoparticles (AuNPs)/ZnFe2O4 nanocomposites were prepared by a colloidal deposition (CD) method. The as-prepared AuNPs/ZnFe2O4 nanocomposites were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) equipped with energy dispersive spectrum (EDS). XRD results showed that the diffraction peaks of AuNPs gradually increased with the increase of AuNPs content. SEM observations revealed that the AuNPs were presented as regular nanoparticles on the ZnFe2O4 in all the composites. With the increase in Au content, the amount of AuNPs deposited on ZnFe2O4 surface increas
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Lu, Ming, Mohsin Javed, Kainat Javed, et al. "Construction of a Well-Defined S-Scheme Heterojunction Based on Bi-ZnFe2O4/S-g-C3N4 Nanocomposite Photocatalyst to Support Photocatalytic Pollutant Degradation Driven by Sunlight." Catalysts 12, no. 10 (2022): 1175. http://dx.doi.org/10.3390/catal12101175.

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Currently, organic dyes and other environmental contaminants are focal areas of research, with considerable interest in the production of stable, high-efficiency, and eco-friendly photocatalysts to eliminate these contaminants. In the present work, bismuth-doped zinc ferrite (Bi-ZnFe2O4) nanoparticles (NPs) and bismuth-doped zinc ferrites supported on sulfur-doped graphitic carbon nitride (Bi-ZnFe2O4/S-g-C3N4) (BZFG) photocatalysts were synthesized via a hydrothermal process. SEM, XRD, and FTIR techniques were used to examine the morphological, structural, and bonding characteristics of the sy
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Febrianti, Nur Safitri, Ahmad Taufiq, Arif Hidayat, Nandang Mufti, and ST Ulfawanti Intan Subadra. "Synthesis and Characterization of ZnFe<sub>2</sub>O<sub>4</sub>- PEG/RGO Nanocomposites as Lead Heavy Metal Adsorbents." Key Engineering Materials 941 (March 17, 2023): 155–63. http://dx.doi.org/10.4028/p-d8u8p7.

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Lead waste that pollutes the environment can cause a variety of serious diseases. Various efforts have been made to remove lead waste from the environment, one of which is through the development of magnetic nanoparticles-based adsorbents. In this work, the synthesis of ZnFe2O4-PEG/RGO nanocomposites was carried out through co-precipitation and sonochemical methods. The structure, morphology, function groups, and adsorption performance of the ZnFe2O4-PEG/RGO nanocomposites were characterized using XRD, SEM, FTIR, and AAS. X-ray diffraction pattern showed the formation of a single phase ZnFe2O4
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Dissertations / Theses on the topic "ZnFe2O4 Nanoparticles"

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Bourrioux, Samantha. "Laser-pyrolysed ZnFe2O4 anode for lithium-ion batteries : understanding of the lithium storage mechanisms." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAI014/document.

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Le graphite est le matériau d’électrode négative utilisé actuellement dans les batteries lithium-ion commerciales. Celui-ci souffre malheureusement d’une capacité spécifique relativement faible (372 mAh.g-1) ; son remplacement par un matériau de conversion comme l’oxyde ZnFe2O4, de capacité théorique plus élevée (1001 mAh.g-1) permettrait d’augmenter la capacité de stockage des batteries lithium-ion. Travailler avec des nanoparticules de ZnFe2O4 permettrait également de limiter l’expansion volumique à laquelle est soumis le matériau en cours de cyclage tout en améliorant la cinétique des ions
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Venkatesha, N. "Nanoparticles for Bio-Imaging : Magnetic Resonance Imaging and Fluorescence Imaging." Thesis, 2015. http://etd.iisc.ac.in/handle/2005/3860.

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This thesis provides several nanomaterial systems that can be used as contrast agents in magnetic resonance imaging (MRI) and for optical fluorescence imaging. Nanoparticle systems described in this thesis fall under three categories: (a) graphene oxide-nanoparticle composites for MRI contrast agent application, (b) core-shell nanoparticles for MRI contrast agent application and (c) nanoparticle systems for both MRI and optical fluorescence imaging. In the case of graphene oxide based nano-composites, the following observations were made: (i) in the case of graphene oxide-Fe3O4 nanoparticle co
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Venkatesha, N. "Nanoparticles for Bio-Imaging : Magnetic Resonance Imaging and Fluorescence Imaging." Thesis, 2015. http://etd.iisc.ernet.in/2005/3860.

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This thesis provides several nanomaterial systems that can be used as contrast agents in magnetic resonance imaging (MRI) and for optical fluorescence imaging. Nanoparticle systems described in this thesis fall under three categories: (a) graphene oxide-nanoparticle composites for MRI contrast agent application, (b) core-shell nanoparticles for MRI contrast agent application and (c) nanoparticle systems for both MRI and optical fluorescence imaging. In the case of graphene oxide based nano-composites, the following observations were made: (i) in the case of graphene oxide-Fe3O4 nanoparticle co
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Book chapters on the topic "ZnFe2O4 Nanoparticles"

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Padinjare Kunnath, Manikandan, and Malaidurai Maduraipandian. "Optical X-Ray Diffraction Data Analysis Using the Williamson–Hall Plot Method in Estimation of Lattice Strain-Stress." In Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-8591-7.ch025.

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Lattice stress and strain was analysed with estimated crystalline size of the synthesised ZnFe2O4 nanoparticles from x-ray diffraction data using Williamson-Hall (W-H) method. This very peculiar method was used to analyse the other physical parameters such as strain, stress, and energy density. Values calculated from the W-H method include uniform deformation model, uniform deformation stress model, and uniform deformation energy density model. These are very useful methods to label each data point on the Williamson-Hall plot according to the index of its reflection. Particularly, the root mean square value of strain was calculated from the interplanar distance using these three models. The three models have given different strain values by reason of the anisotropic nature of the nanopartcles. The average grain size of ZnFe2O4 nanoparticles estimated from FESEM image, Scherrer's formula, and W-H analysis is relatively correlated.
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Padinjare Kunnath, Manikandan, and Malaidurai Maduraipandian. "Optical X-Ray Diffraction Data Analysis Using the Williamson–Hall Plot Method in Estimation of Lattice Strain-Stress." In Applications and Techniques for Experimental Stress Analysis. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1690-4.ch008.

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Lattice stress and strain was analysed with estimated crystalline size of the synthesised ZnFe2O4 nanoparticles from x-ray diffraction data using Williamson-Hall (W-H) method. This very peculiar method was used to analyse the other physical parameters such as strain, stress, and energy density. Values calculated from the W-H method include uniform deformation model, uniform deformation stress model, and uniform deformation energy density model. These are very useful methods to label each data point on the Williamson-Hall plot according to the index of its reflection. Particularly, the root mean square value of strain was calculated from the interplanar distance using these three models. The three models have given different strain values by reason of the anisotropic nature of the nanopartcles. The average grain size of ZnFe2O4 nanoparticles estimated from FESEM image, Scherrer's formula, and W-H analysis is relatively correlated.
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Pullar, R. C. "Applications of Magnetic Oxide Nanoparticles in Hyperthermia." In Magnetic Nanoparticles for Biomedical Applications. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902335-3.

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Magnetic oxide nanoparticles (NPs) are probably the most common nanomaterials in everyday biomedicine, and have been in use since the 1990’s. They are usually magnetic iron oxide NPs, made of magnetite (Fe3O4) or maghemite (γ-Fe2O3), or a mixture of the two. Both of these have the spinel structure, and other spinel ferrites such as ZnFe2O4, CoFe2O4 and NiFe2O4 are also used. For applications in magnetic hyperthermia these NPs must be below the magnetic domain size, making them superparamagnetic, which means that their magnetisation can be “switched on” by the application of an external magnetic field. Magnetic hyperthermia treatment is a form of thermotherapy which is used to kill tumour cells with thermal energy (heat) in a very localised manner, by causing magnetic oxide NPs to heat up near tumour cells. Under an applied AC magnetic field the magnetic spin of the NPs switches rapidly in direction, transforming the magnetic energy into thermal energy. Temperatures of 41-46 °C are sufficient, this localised heating elevating the temperature of tumour cells, inhibiting growth, killing them, or inducing tumour cell apoptosis. Magnetic NPs were first used in tumour thermotherapy in 1996, and since then there has been a great deal of research in this field. The treatment can be applied alone, or used in combination with other therapies such as surgery, radiotherapy and chemotherapy, and it has shown excellent synergistic effects in combination with anticancer drugs (chemotherapeutics).
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Pullar, R. C. "Applications of Magnetic Oxide Nanoparticles in Hyperthermia." In Magnetic Nanoparticles for Biomedical Applications. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902332-3.

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Magnetic oxide nanoparticles (NPs) are probably the most common nanomaterials in everyday biomedicine, and have been in use since the 1990’s. They are usually magnetic iron oxide NPs, made of magnetite (Fe3O4) or maghemite (γ-Fe2O3), or a mixture of the two. Both of these have the spinel structure, and other spinel ferrites such as ZnFe2O4, CoFe2O4 and NiFe2O4 are also used. For applications in magnetic hyperthermia these NPs must be below the magnetic domain size, making them superparamagnetic, which means that their magnetisation can be “switched on” by the application of an external magnetic field. Magnetic hyperthermia treatment is a form of thermotherapy which is used to kill tumour cells with thermal energy (heat) in a very localised manner, by causing magnetic oxide NPs to heat up near tumour cells. Under an applied AC magnetic field the magnetic spin of the NPs switches rapidly in direction, transforming the magnetic energy into thermal energy. Temperatures of 41-46 °C are sufficient, this localised heating elevating the temperature of tumour cells, inhibiting growth, killing them, or inducing tumour cell apoptosis. Magnetic NPs were first used in tumour thermotherapy in 1996, and since then there has been a great deal of research in this field. The treatment can be applied alone, or used in combination with other therapies such as surgery, radiotherapy and chemotherapy, and it has shown excellent synergistic effects in combination with anticancer drugs (chemotherapeutics).
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Conference papers on the topic "ZnFe2O4 Nanoparticles"

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Lal, Ganesh, Khushboo Punia, S. N. Dolia, and Sudhish Kumar. "Optical and superparamagnetic behavior of ZnFe2O4 nanoparticles." In 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5033086.

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Srinivasan, S. S., N. Kislov, Yu Emirov, D. Y. Goswami, and E. K. Stefanakos. "Investigation of ZnFe2O4 Nanoparticles Prepared by High Energy Milling." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11573.

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Nanoparticles of Zinc Ferrite (ZnFe2O4) prepared by both wet- and dry- high-energy ball milling (HEBM), have been investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), atomic force microscopy (AFM), surface area and pore size distribution (BET) and wavelength-dependent diffuse reflectance and scattering turned into absorption coefficient estimation using the Kubelka-Munk theory. It was found that after 72 hours of HEBM, the particle size was decreased from 220 nm for the initial material to 16.5 nm and 9.4 nm for
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Narsimulu, D., M. Venkateswarlu, and N. Satyanarayana. "Synthesis, characterization and conductivity studies of ZnFe2O4 nanoparticles." In NANOFORUM 2014. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4917792.

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Cuihuan Li and Wangjun Feng. "Preparation and magnetic research of ZnFe2O4 nanoparticles by carbon adsorption." In 2011 International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE). IEEE, 2011. http://dx.doi.org/10.1109/rsete.2011.5965765.

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Khoiriyah, Khorifathul, Nuviya Illa Muthi Aturroifah, Ulvin Afkarina, Elok Putri Cindya Sari, and Joko Utomo. "A mini-review on the synthesis and application of ZnFe2O4 nanoparticles." In THE 7TH INTERNATIONAL CONFERENCE ON BASIC SCIENCES 2021 (ICBS 2021). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0113144.

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Kharat, S. P., T. C. Darvade, S. K. Gaikwad, et al. "Magnetic properties of CoFe2O4 and ZnFe2O4 nanoparticles synthesized by novel chemical route." In DAE SOLID STATE PHYSICS SYMPOSIUM 2015. Author(s), 2016. http://dx.doi.org/10.1063/1.4948162.

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Abbas, Sabah Ibrahim, Ahmed Abed Anber, and Awatif Sami Abbas. "Effect of Heat Treatment on Structural and Optical Properties of ZnFe2O4 Nanoparticles." In 2019 12th International Conference on Developments in eSystems Engineering (DeSE). IEEE, 2019. http://dx.doi.org/10.1109/dese.2019.00139.

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Godbole, R. V., V. P. Godbole, Pratibha Rao, P. S. Alegaokar, and Sunita Bhagwat. "Influence of fuel to oxidizer ratio on gas sensing characteristics of ZnFe2O4 nanoparticles." In 2015 2nd International Symposium on Physics and Technology of Sensors (ISPTS). IEEE, 2015. http://dx.doi.org/10.1109/ispts.2015.7220101.

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Yoo, P., B. Lee, and C. Liu. "Influences of pH value, reaction time, and filling pressure in the hydrothermal synthesis of ZnFe2O4 nanoparticles." In 2015 IEEE International Magnetics Conference (INTERMAG). IEEE, 2015. http://dx.doi.org/10.1109/intmag.2015.7157641.

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Tadjarodi, Azadeh, Mohammad Salehi, Mina Imani, Samaneh Ebrahimi, and Raheleh Pardehkhorram. "Glycine Assisted Synthesis of ZnFe2O4 Nanoparticles by One Pot Microwave Heating Route and Organic Pollutant Adsorption for Water Treatment." In The 18th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2014. http://dx.doi.org/10.3390/ecsoc-18-c004.

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