scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Electrochemical property, antioxidant activities, water treatment and solar cell applications of titanium dioxide – zinc oxide hybrid nanocomposite based on graphene oxide nanosheet

TL;DR: In this paper, the photocatalytic properties, electrochemical properties and solar cell applications tests of fabricated (Titanium dioxide (TiO2) nanoparticles-Zinc oxide (ZnO) nanoparticle) hybrid nanocomposite based on Graphene oxide nanosheet (GO) have been studied with different techniques.
Abstract: Antioxidant activity has been detected with the HT22 mouse Hippocampal Neuronal cell line. The photocatalytic properties, electrochemical properties and solar cell applications tests of fabricated (Titanium dioxide (TiO2) nanoparticles-Zinc oxide (ZnO) nanoparticle) hybrid nanocomposite based on Graphene oxide nanosheet (GO) have been studied with different techniques. The electrochemical properties revealed by cyclic voltammetry analysis and the photocatalytic study have been evidenced by the interaction of synthesized nanoflower composite (GO@TiO2·ZnO) with mixed dyes (MB and RhB) and, also, with mixed pesticides (Tobaz and Metalxel). Absorbance intensities of examined organic pollution compounds were considerably quenched, this degradation was recorded by using the steady-state UV–Vis spectrophotometer under visible light source. Effect of fabricated GO@TiO2·ZnO hybrid nanocomposite on the HT22 mouse Hippocampal Neuronal cell line was measured and the reducing power activity showed the potential antioxidant property of the fabricate nanocomposite. The results showed that the fabricated hybrid nanoflower composite on graphene oxide (GO) surface has high photocatalytic efficiency for degradation of mixed organic compounds, this composite has been kept the viability of HT22 cells line. The electron-hole pair recombination was evidenced by photoluminescence (PL) analysis, where the fabricated nanocomposite has high electron transfer, so, the tests of solar cell applications have been revealed and confirmed that the fabricated hybrid nanocomposite has activity towards solar cell applications.
Citations
More filters
Journal ArticleDOI
TL;DR: In this paper, a novel hybrid nanomaterial (HNM) (GO@CuO) was manufactured where the thermal and electrical performances were comprehensively appraised investigated, and the results confirmed the formation and loading of NM QDs successfully on the GO surface.

33 citations

Journal ArticleDOI
TL;DR: Using a cost-effective and time-efficient chemical bath deposition (CBD) approach, zinc oxide (ZnO) nanorod doped with various cobalt concentrations ranged from 2% to 8% have been synthesized on ITO substrates as mentioned in this paper.

28 citations

Journal ArticleDOI
TL;DR: In this paper, carboxymethylcellulose (CMC) macrostructure has been incorporated with graphene oxide nanosheet (GO) to form a hybrid composite as a modified surface for antifouling membrane and supercapacitor applications.

28 citations

Journal ArticleDOI
TL;DR: In this article, a novel nanohybrid material (NHM) of magnesium oxide nanoparticle (MgO NPs) and modified antifouling membrane surface of graphene oxide nanosheet (GO) and carboxymethylcellulose (CMC) has been created via precipitation and ultrasonication methods, then characterized via various techniques for a novel antifoulling membrane for water treatment, and supercapacitor applications for energy applications.

27 citations

Journal ArticleDOI
TL;DR: In this article, copper sulfate was dropped wised to a hot solution of potassium hydroxide to form copper oxide nanorod quantum dots followed by inserting it into a solution of graphene oxide to fabricate graphene oxide/copper oxide nanocomposite.

25 citations

References
More filters
Journal ArticleDOI
TL;DR: The use of the foregoing analytical method in the determination of total and oxidized glutathione contents of rat blood, kidney, and liver gave values in good agreement with those obtained by previous investigators.

5,900 citations

Journal ArticleDOI
TL;DR: In this article, a tetrazolium analog of 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2- (4-sulfophenyl))-2H-tetrazorium, inner salt (MTS), in the presence of phenazine methosulfate (PMS), gave a water-soluble formazan product that had an absorbance maximum at 490-500 nm in phosphate-buffered saline.
Abstract: A new tetrazolium analog of 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) was evaluated as a substitute for MTT in the microculture screening assay for in vitro cell growth. This new tetrazolium compound, 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2- (4-sulfophenyl)-2H-tetrazolium, inner salt (MTS), in the presence of phenazine methosulfate (PMS), gave a water-soluble formazan product that had an absorbance maximum at 490-500 nm in phosphate-buffered saline. The amount of colored product formed was proportional to the number of cells and the time of incubation of the cells with MTS/PMS. MTS/PMS was reactive in all the cell lines tested which included mouse leukemia L1210 cells, mouse Ehrlich tumor cells, mouse 3T3 fibroblasts, and human colon tumor cells (HT-29). HT-29 and 3T3 fibroblasts reduced MTS/PMS more efficiently than they reduced MTT. Comparable to the amount of product formed from MTT, MTS/PMS gave excellent product formation. The IC50 value for pyrazoloimidazole obtained using MTS/PMS was 200 microM; for 5-fluoro-2'-deoxyuridine, the IC50 value was 0.9 nM. These values compared very favorably with the IC50 values obtained by direct cell counts. Further, the same IC50 values were obtained when the absorbances of the formazan product in the 96-well plates were determined after different times of incubation.

1,420 citations

Journal ArticleDOI
TL;DR: The comparative analysis demonstrated that particle composition probably played a primary role in the cytotoxic effects of different nanoparticles, however, the potential genotoxicity might be mostly attributed to particle shape.
Abstract: Although the biological effects of some nanomaterials have already been assessed, information on toxicity and possible mechanisms of various particle types are insufficient. Moreover, the role of particle properties in the toxic reaction remains to be fully understood. In this paper, we aimed to explore the interrelationship between particle size, shape, chemical composition and toxicological effects of four typical nanomaterials with comparable properties: carbon black (CB), single wall carbon nanotube, silicon dioxide (SiO(2)) and zinc dioxide (ZnO) nanoparticles. We investigated the cytotoxicity, genotoxicity and oxidative effects of particles on primary mouse embryo fibroblast cells. As observed in the methyl thiazolyl tetrazolium (MTT) and water-soluble tetrazolium (WST) assays, ZnO induced much greater cytotoxicity than non-metal nanoparticles. This was significantly in accordance with intracellular oxidative stress levels measured by glutathione depletion, malondialdehyde production, superoxide dismutase inhibition as well as reactive oxygen species generation. The results indicated that oxidative stress may be a key route in inducing the cytotoxicity of nanoparticles. Compared with ZnO nanoparticles, carbon nanotubes were moderately cytotoxic but induced more DNA damage determined by the comet assay. CB and SiO(2) seemed to be less effective. The comparative analysis demonstrated that particle composition probably played a primary role in the cytotoxic effects of different nanoparticles. However, the potential genotoxicity might be mostly attributed to particle shape.

963 citations

Journal ArticleDOI
TL;DR: In this paper, the interaction between NiO nanoparticles and glucose has been studied using UV-vis absorption and fluorescence spectroscopy, and the zeta-potential of NiO nano-articles was used to gain insight about the interaction mode.

458 citations

Journal ArticleDOI
TL;DR: Experimental evidence for the modulation of surface states by using a gate voltage to control quantum oscillations in Bi(2)Te(3) nanoribbons and the first observation of h/2e periodic oscillations are reported, suggesting the presence of time-reversed paths with the same relative zero phase at the interference point.
Abstract: A gate voltage has been used to control quantum oscillations in Bi2Te3 nanoribbons and enhance the surface conduction.

425 citations