scholarly journals Highly efficient WO3–ZnO mixed oxides for photocatalysis

RSC Advances ◽  
2015 ◽  
Vol 5 (16) ◽  
pp. 11895-11904 ◽  
Author(s):  
Sangeeta Adhikari ◽  
Debasish Sarkar ◽  
Giridhar Madras

Monoclinic nanocuboid WO3 enhanced the photocatalyst efficiency of quasi nanobelt zinc oxide for dye degradation in the presence of visible light radiation.

2017 ◽  
Vol 17 (8) ◽  
pp. 4189-4195 ◽  
Author(s):  
Qiansu Xia ◽  
Xiaodan Yu ◽  
Hongmei Zhao ◽  
Siping Wang ◽  
Hong Wang ◽  
...  

2016 ◽  
Vol 390 ◽  
pp. 111-121 ◽  
Author(s):  
Ozlem Altintas Yildirim ◽  
Hanife Arslan ◽  
Savaş Sönmezoğlu

2021 ◽  
Vol 9 ◽  
Author(s):  
Kanika Bharti ◽  
Shahbaz Ahmad Lone ◽  
Ankita Singh ◽  
Sandip Nathani ◽  
Partha Roy ◽  
...  

Green synthesis of gold-zinc oxide (Au-ZnO) nanocomposite was successfully attempted under organic solvent–free conditions at room temperature. Prolonged stirring of the reaction mixture introduced crystallinity in the ZnO phase of Au-ZnO nanocomposites. Luminescence properties were observed in these crystalline Au-ZnO nanocomposites due to in situ embedding of gold nanoparticles (AuNP) of 5–6 nm diameter on the surface. This efficient strategy involved the reduction of Au(III) by Zn(0) powder in aqueous medium, where sodium citrate (NaCt) was the stabilizing agent. Reaction time and variation of reagent concentrations were investigated to control the Au:Zn ratio within the nanocomposites. The reaction with the least amount of NaCt for a long duration resulted in Au-ZnO/Zn(OH)2 nanocomposite. X-ray photoelectron spectroscopy (XPS) confirmed the formation of Zn(OH)2 and ZnO in the same nanocomposite. These nanocomposites were reconnoitered as bioimaging materials in human cells and applied for visible light–induced photodegradation of rhodamine-B dye.


2006 ◽  
Vol 352 (9-20) ◽  
pp. 1756-1760 ◽  
Author(s):  
P. Barquinha ◽  
A. Pimentel ◽  
A. Marques ◽  
L. Pereira ◽  
R. Martins ◽  
...  

2015 ◽  
Vol 3 (38) ◽  
pp. 19439-19444 ◽  
Author(s):  
Yu Hongjian ◽  
Yu Yong ◽  
Liu Jianghao ◽  
Ma Peiyan ◽  
Wang Yucheng ◽  
...  

A highly efficient photocatalyst was synthesized by controlling the growth of Ag3PO4nanoparticles within WS2sheets. This work could provide new insights into fabricating stable Ag3PO4-transition-metal dichalcogenide composite photocatalysts for dye degradation.


2019 ◽  
Vol 48 (36) ◽  
pp. 13869-13879 ◽  
Author(s):  
Arnab Mandal ◽  
Sumi Ganguly ◽  
Somali Mukherjee ◽  
Debasis Das

Solvothermally synthesized CoII based MOFs have been exploited as visible light induced dye degradation catalyst having real life applicability where introduction of H2O2 enhances the efficiency markedly.


Author(s):  
Ahamed Fazil A. ◽  
Sheeba Narayanan ◽  
Meera S. Begum ◽  
G. Manikandan ◽  
M. Yuvashree

Abstract Facile and green method for synthesizing Zinc Oxide nanoparticles (ZnO NPs) was successfully carried out using unutilized sweet lime i.e., Citrus Limetta rind pulp (U-CLRP) extract. The structural, morphological and optical studies were elucidated to confirm the crystallinity, size, shape of the synthesized NPs. Copper doping on ZnO NPs (CZnO NPs) was carried out to enhance the optical properties. The as prepared and doped nanoparticle's potential for efficient degradation of a commercial dye, Methylene Blue (MB) was tested under Ultraviolet (UV) and visible light radiation. ZnO NPs showed promising results for dye degradation while improved result was witnessed for CZnO NPs. ZnO NPs showed 74% of degradation of MB dye under UV irradiation and 57% degradation under visible light radiation. CZnO NPs presented 85 and 90% degradation in the UV and visible radiation, respectively. This green reduction method utilizing biological waste sources shows a promising path for photocatalysts to be developed economically as well as efficiently in the future. These CZnO/ ZnO NPs proved their potential for embedding them as efficient catalysts for wastewater treatment plants of textile industries.


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