نتایج جستجو برای: nife2o4

تعداد نتایج: 365  

2016
Sema Vural Mucahit Yilmaz

In this study, PMAs/NiFe2O4 nanocomposite was prepared using in-situ polymerization technique. The structure and morphological properties of nano composited were determined via FT-IR, SEM, EDX analysis methods. Thermal properties of prepared nanocomposites were investigated by TGA, DTA and DSC. Pure NiFe2O4 nanoparticles were synthesized using hydrothermal synthesis using the same conditions wi...

2017
Muhammad Idrees Saima Batool

Arsenic is noxious metal exist in water in form of organic dimethyl arsenic acid (C2H7AsO2) and monomethylarsonic acid (CH5AsO3) while in inorganic arsenic trioxide (As2O3) and sodium arsenate (NaH2AsO4). Its trivalent and pentavalent forms are abundant in natural water. Its trivalent form is 60 times more hazardous than pentavalent form. Reports proved that arsenic contamination in water is th...

Raziyeh Zandi Pak, Soheil Sobhan Ardakani,

Background: Among different pollutants released into the environment, dyes are considered as one of the most dangerous contaminants. In recent years, magnetic nanomaterials have attracted much attention for their dye removal capacity. The aim of this study was to explore the adsorption kinetics of an anionic dye (Reactive Orange 13 (RO)) by NiFe2O4 nanoparticles (NiFe2O4 NPs) under various cond...

2013
Chunhui Dong Gaoxue Wang Dangwei Guo Changjun Jiang Desheng Xue

The morphology, structure, and magnetic properties of nickel ferrite (NiFe2O4) films fabricated by radio frequency magnetron sputtering on Si(111) substrate have been investigated as functions of film thickness. Prepared films that have not undergone post-annealing show the better spinel crystal structure with increasing growth time. Meanwhile, the size of grain also increases, which induces th...

Journal: :Nanoscale 2014
Yuanmin Zhu Pingping Liu Rong Yu Ying-Hui Hsieh Dan Ke Ying-Hao Chu Qian Zhan

Anisotropic nano-plate structures in self-assembled perovskite-spinel thin films, BiFeO3-NiFe2O4 and BiFeO3-CoFe2O4, which were deposited on (001)c SrRuO3/SrTiO3 and DyScO3 substrates, respectively, have been demonstrated using transmission electron microscopy combined with strain analysis. Unlike the unitary cube-on-cube orientation relationship reported widely, the growth direction of the CoF...

Journal: :Journal of Electrochemical Science and Engineering 2022

In this study, an electrochemical sensor for the quantification of folic acid with voltam­metric detection in physiological conditions was constructed. For purpose, nickel ferrite (NiFe2O4) nanoparticles were used to modify surface a screen-printed graphite electrode (NiFe2O4/SPGE) and applied determination acid. The modified displays strong response Folic determined electrochemically using dif...

Journal: :Chemical communications 2015
Yang Si Chengcheng Yan Feifei Hong Jianyong Yu Bin Ding

Flexible, magnetic, and hierarchical porous NiFe2O4@SiO2 nanofibrous membranes were prepared by combining the gelatin method with electrospun nanofibers. The membranes exhibited prominent mechanical strength and mesoporosity, as well as multifunctionality of magnetic responsiveness, dye adsorption, and emulsion separation.

Journal: :Nigerian Journal of Technological Development 2021

This study investigated adsorptive and catalytic behaviour of ZnO ZnO/NiFe2O4 nanocomposites for the removal degradation organic pollutants in tannery wastewater. nanomaterials were synthesized via a green method using Zn, Fe Ni salts precursor leaves extract Anacardium occidentale (linn.). Subsequently, samples characterized by different analytical tools. The performance prepared nanomaterial ...

Journal: :Dalton transactions 2014
Devaki Nandan Peta Sreenivasulu Nagabhatla Viswanadham Ken Chiang Jarrod Newnham

Successful synthesis of stable MFe2O4 nanoparticles@C has been realized by applying the novel concept of using levulinic acid possessing carboxyl and carbonyl groups to facilitate the interaction with metal ions (M(2+) and Fe(3+)) and the carbon source (phloroglucinol) in the sol-gel polymerization method. All the samples have been characterized by XRD, SEM, FT-IR, TEM, HRTEM, ICP-AES, CHNS, an...

2014
Farid Moeinpour Asma Alimoradi Maryam Kazemi

The magnetic NiFe2O4 nanoparticles have been synthesized and used as adsorbents for removal of an azo dye, Eriochrome black-T (EBT) from aqueous solution. The NiFe2O4 nanoparticles were characterized by scanning electron microscope (SEM), Transmission electron microscope (TEM), X-ray diffraction (XRD) and Fourier transform infrared spectra (FTIR). The adsorption studies were carried out under v...

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