نتایج جستجو برای: tio2 fe3o4 nanocomposite

تعداد نتایج: 40048  

2014
Peik-See Teo Alagarsamy Pandikumar Nay-Ming Huang Hong-Ngee Lim Yusran Sulaiman

The fabrication of an electrochemical sensor based on an iron oxide/graphene modified glassy carbon electrode (Fe3O4/rGO/GCE) and its simultaneous detection of dopamine (DA) and ascorbic acid (AA) is described here. The Fe3O4/rGO nanocomposite was synthesized via a simple, one step in-situ wet chemical method and characterized by different techniques. The presence of Fe3O4 nanoparticles on the ...

2017
Maoling Wu Yinying Li Rui Yue Xiaodan Zhang Yuming Huang

The removal of silver nanoparticles (AgNPs) from water is highly needed because of their increasing use and potential risk to the environment due to their toxic effects. Catalysis over AgNPs has received significant attention because of their highly catalytic performance. However, their use in practical applications is limited due to high cost and limited resources. Here, we present for the fir...

2016
Mohammad Khazaei Simin Nasseri Mohammad Reza Ganjali Mehdi Khoobi Ramin Nabizadeh Amir Hossein Mahvi Shahrokh Nazmara Elham Gholibegloo

BACKGROUND Magnetic graphene oxide (Fe3O4@SiO2-GO) nanocomposite was fabricated through a facile process and its application as an excellent adsorbent for lead (II) removal was also demonstrated by applying response surface methodology (RSM). METHODS Fe3O4@SiO2-GO nanocomposite was synthesized and characterized properly. The effects of four independent variables, initial pH of solution (3.5-8...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2015
Neerugatti KrishnaRao Eswar Praveen Chandrashekarapura Ramamurthy Giridhar Madras

This study demonstrates the synthesis of TiO2 nanobelts using solution combustion derived TiO2 with enhanced photocatalytic activity for dye degradation and bacterial inactivation. Hydrothermal treatment of combustion synthesized TiO2 resulted in unique partially etched TiO2 nanobelts and Ag3PO4 was decorated using the co-precipitation method. The catalyst particles were characterized using X-r...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2013
Zhi Li Mengying Hou Shasha Bai Chun Wang Zhi Wang

In this paper, a sensitive analytical method for four fungicides (procymidone, folpet, vinclozolin and ditalimfos) in environmental water and juice samples was developed by using magnetic solid-phase extraction (MSPE) with magnetic graphene nanocomposite (G-Fe3O4) as the adsorbent, followed by determination with gas chromatography and electron capture detection. Parameters such as the amount of...

Journal: :Dalton transactions 2013
Changhua An Wen Jiang Jizhuang Wang Shutao Wang Zhanhua Ma Yanpeng Li

Three-dimensional (3D) TiO2 with an acanthosphere-like morphology composed of nanothorns has been used as a suitable support to fabricate a visible-light-induced 3D AgI@TiO2 nanophotocatalyst. The structural characterization revealed that the size of the obtained AgI@TiO2 nanocomposite was close to that of pristine TiO2 particles, where AgI nanoparticles were evenly dispersed on the surfaces of...

Journal: :Journal of materials research and technology 2022

Sunlight responsible mono- and co-doped TiO2 nanoparticles (Con+ Fen+) were prepared via sol–gel technique. The X-ray diffraction (XRD) results showed no phase change of was observed after the addition Con+ Fen+ ions. Diffuse reflectance spectra (DRS) a significant red-shift absorption edge doping by Con band gap energy reduced sharply from 3.10 to 1.72 eV. photoelectron spectroscopy (XPS) emph...

Journal: :journal of membrane science and research 0
n.s. mohd yatim school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan, 14300 nibong tebal, penang, malaysia k. abd. karim school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan, 14300 nibong tebal, penang, malaysia o. boon seng school of chemical engineering, engineering campus, universiti sains malaysia, seri ampangan, 14300 nibong tebal, penang, malaysia

the surface properties of tio2-pvdf nanocomposite membranes were investigated by incorporating different chemically modified tio2 nanoparticles into the poly (vinylidene fluoride) (pvdf) matrix. the nanocomposite membranes were prepared via dual coagulation bath diffusion and the induced phase inversion method. the membrane surface morphologies were investigated by using sem and afm and related...

Journal: :journal of ultrafine grained and nanostructured materials 0
soha mohajeri department of materials science and engineering, sharif university of technology, tehran, iran. abolghassem dolati department of materials science and engineering, sharif university of technology, tehran, iran. mohammad ghorbani department of materials science and engineering, sharif university of technology, tehran, iran.

in this research, a sol-modified composite electrodeposition technique that combines the sol-gel method with the conventional electrodeposition process was utilized to deposit ni-tio2 nanocomposite coatings. cyclic voltammetry and chronoamperometry techniques were applied to study the influence of the tio2 sol concentration on the deposits’ electrochemical behavior. the results clearly showed t...

Journal: :Chemosphere 2014
Shibin Li Xuan Pan Lindsay K Wallis Zhaoyang Fan ZuLiang Chen Stephen A Diamond

With a dramatic rise in complexity, needs of nanotoxicology research go beyond simple forms of nanomaterials. This study compared the phototoxicity of nano-TiO2 and graphene-TiO2 nanocomposite (GNP). GNP was synthesized based on a hydrothermal method, which simultaneously performed the reduction of graphene oxide and nano-TiO2 loading. A series of acute toxicity tests of nano-TiO2, graphene and...

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