scholarly journals Visible light active indigo dye/graphene/WO3 nanocomposites with excellent photocatalytic activity

2019 ◽  
Vol 8 (3) ◽  
pp. 3261-3269 ◽  
Author(s):  
Muhammad Yousaf Khan ◽  
Manzoor Ahmad ◽  
Sana Sadaf ◽  
Saleem Iqbal ◽  
Faisal Nawaz ◽  
...  
RSC Advances ◽  
2017 ◽  
Vol 7 (46) ◽  
pp. 28797-28801 ◽  
Author(s):  
W. X. Liao ◽  
X. L. Zhao ◽  
T. S. Wang

A new type of Bi-based p-type semiconductor, Bi7.38Cr0.62O12+x, has a strong photoelectric response until 647.4 nm and an excellent photocatalytic activity for decomposition and O2 production.


2015 ◽  
Vol 44 (24) ◽  
pp. 11155-11164 ◽  
Author(s):  
Gui-Mei Shi ◽  
Bin Zhang ◽  
Xin-Xin Xu ◽  
Yan-Hong Fu

GO/CPNB was fabricated successfully, which displays excellent photocatalytic activity in visible light. Furthermore, the influence of GO on photocatalytic activity is discussed.


2015 ◽  
Vol 44 (5) ◽  
pp. 2267-2275 ◽  
Author(s):  
Tingting Lu ◽  
Xinxin Xu ◽  
Huili Li ◽  
Zhenyu Li ◽  
Xia Zhang ◽  
...  

NCC/POM/ACF composite material was successfully fabricated, and displays excellent photocatalytic activity in visible light.


2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Min Liu ◽  
Hongmei Li ◽  
Yangsu Zeng

Tungsten trioxide (WO3) was surface modified with Cu(II) nanoclusters and titanium dioxide (TiO2) nanopowders by using a simple impregnation method followed by a physical combining method. The obtained nanocomposites were studied by scanning electron microscope, X-ray photoelectron spectroscopy spectra, UV-visible light spectra, and photoluminescence, respectively. Although the photocatalytic activity of WO3was negligible under visible light irradiation, the visible light photocatalytic activity of WO3was drastically enhanced by surface modification of Cu(II) nanoclusters and TiO2nanopowders. The enhanced photocatalytic activity is due to the efficient charge separation by TiO2and Cu(II) nanoclusters functioning as cocatalysts on the surface. Thus, this simple strategy provides a facile route to prepare efficient visible-light-active photocatalysts for practical application.


NANO ◽  
2016 ◽  
Vol 11 (05) ◽  
pp. 1650054 ◽  
Author(s):  
Bin Zeng ◽  
Yang Yin

CuS hexagonal nanosheet/graphene was fabricated by a facile one-pot microwave-thermal method. The samples possess excellent photocatalytic activity for degradation of organic pollutant under visible light. The high photocatalytic activity was attributed to the deposition of CuS hexagonal nanosheet onto graphene. CuS nanosheet serves as a transporter which efficiently inhibits the recombination of the photo-induced charge carriers in the nanocomposites. The developed method demonstrates a facile approach towards the synthesis of two-dimensional semiconductor-graphene nanocomposites with excellent photocatalytic performance under visible light.


2017 ◽  
Vol 19 (36) ◽  
pp. 24915-24927 ◽  
Author(s):  
A. H. Reshak

The amalgamation of a wide optical band gap photocatalyst with visible-light-active CdO quantum dots (QDs) as sensitizers is one of the most efficient ways to improve photocatalytic performance under visible light irradiation.


2019 ◽  
Vol 9 (6) ◽  
pp. 1357-1364 ◽  
Author(s):  
Ning-Chao Zheng ◽  
Ting Ouyang ◽  
Yibo Chen ◽  
Zhu Wang ◽  
Di-Yun Chen ◽  
...  

By virtue of the systematic effects of S-doping on CeO2 and the ultrathin shell structure of CdS, the CeO2−xSx@CdS nanocomposite exhibits excellent photocatalytic activity under visible-light illumination for both H2 evolution (rate up to 1147.2 μmol g−1 h−1) and RhB degradation (efficiency reached 99.8%) as compared to CeO2, CeO2−xSx, and CdS.


2019 ◽  
Vol 7 (10) ◽  
pp. 5493-5503 ◽  
Author(s):  
Junli Chen ◽  
Hai Wang ◽  
Zhiqiang Zhang ◽  
Lifeng Han ◽  
Yonghui Zhang ◽  
...  

Ultrathin HNb3O8 nanosheets with oxygen vacancies were successfully synthesized by a simple hydrothermal process. HNb3O8 NSs showed excellent photocatalytic activity.


2016 ◽  
Vol 40 (2) ◽  
pp. 1587-1594 ◽  
Author(s):  
Yimai Liang ◽  
Na Guo ◽  
Linlin Li ◽  
Ruiqing Li ◽  
Guijuan Ji ◽  
...  

A series of flower-like Ag/ZnO composites was prepared with varying Ag content. The prepared photocatalyst displays excellent photocatalytic activity for RhB under UV and visible light. Ag/ZnO is a promising candidate material for the treatment of contaminated water.


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