Wavelength-switchable photocurrent in a hybrid TiO2–Ag nanocluster photoelectrode

2015 ◽  
Vol 51 (60) ◽  
pp. 12072-12075 ◽  
Author(s):  
Hongjun Chen ◽  
Qiong Wang ◽  
Miaoqiang Lyu ◽  
Zhi Zhang ◽  
Lianzhou Wang

A new type of hybrid TiO2–Ag nanocluster (NC) photoelectrode exhibits wavelength-switchable photocurrent by tuning the light wavelength from ultraviolet (UV) to visible light. The combination of UV-active TiO2 and visible-light-active Ag NCs with photoelectrochemical behaviour leads to the unique switchable photocurrent in the system.

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.


2018 ◽  
Vol 54 (32) ◽  
pp. 3947-3950 ◽  
Author(s):  
Ge Yin ◽  
Hiroshi Sako ◽  
Ramesh V. Gubbala ◽  
Shigenori Ueda ◽  
Akira Yamaguchi ◽  
...  

Selected HCOOH generation was promoted by Cu–Zn nanoparticles as a co-catalyst in a Z-scheme visible light harvester system.


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.


2016 ◽  
Vol 13 (1) ◽  
pp. 110-116 ◽  
Author(s):  
Rani P. Barkul ◽  
Farah-Naaz A. Shaikh ◽  
Sagar D. Delekar ◽  
Meghshyam K. Patil

2020 ◽  
Vol 1 (1) ◽  
pp. 30-36
Author(s):  
Shubha Jayachamarajapura Pranesh ◽  
Diwya Lanka

Background: Textile industries discharge harmful synthetic dyes to nearby water sources. These colour effluents should be treated before discharge to reduce the toxicity caused by synthetic colours. Objective: To synthesize visible light active superstructures to reduce water pollution caused by textile industries. Methods: We have successfully synthesized ZnO/Dy/NiO hybrid nanocomposites using waste curd as fuel by a simple combustion method. The obtained material was able to reduce recombination and enhanced the photocatalytic degradation of organic pollutants. The as-synthesized material was characterized by XRD, absorption spectroscopy, FESEM, EDAX, etc. The obtained hybrid nanostructure was used as a photocatalyst for the degradation of methylene blue under sunlight, UV light as well as in dark. Comparative experiments were carried out with a variation of catalytic load, pH, dye concentrations, etc. for a better understanding of the performance of the catalyst at various conditions. Results and Conclusion: The ternary compound shows wide range of absorption by expanding absorption band both in UV and visible regions. ZnO/Dy/NiO hybrid nanocomposites performed well and showed uniqueness in the activity uder visible light.


Author(s):  
Yalong Zou ◽  
Jiabo Le ◽  
Yufeng Cao ◽  
Na An ◽  
Yang Zhou ◽  
...  

The attractive photoelectrochemical (PEC) water splitting for hydrogen fuels always desires new semiconductors which provide stronger visible light absorption with suitable band positions. Sn(II) complex oxides are expected to offer...


Author(s):  
Yuwei Zhang ◽  
Xiaoxiang Xu

Solid solution of LaTaON2 and BaTaO2N, i.e., La1-xBaxTaO1+yN2-y (0 ≤ x, y ≤ 1), have been investigated as visible-light-active photocatalysts for water oxidation reactions. A number of important parameters such...


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