CuS nanoparticle–decorated TiO2 nanobelts with enhanced electrocatalytic and photocatalytic properties.

Autor:	Zhou, Fang, Zhang, Zhiguang, Wang, Qiang, Yu, Guifeng, Yuan, Shuli
Předmět:	HYDROGEN evolution reactions NANOBELTS ELECTROCATALYSIS PHOTODEGRADATION CHARGE carriers CLEAN energy CHARGE transfer RENEWABLE energy sources
Zdroj:	Journal of Nanoparticle Research; Nov2022, Vol. 24 Issue 11, p1-11, 11p
Abstrakt:	TiO2 nanobelts were decorated with CuS nanoparticles to construct TiO2@CuS heterostructure though a simple hydrothermal method. The performance of electrocatalysis has been investigated by hydrogen evolution reaction. The overpotential (259 mV) and Tafel slope (102 mV∙dec−1) of TC11 are obviously lower than of all other samples. And the photodegradation efficiency of TC11 is 1.3 times that of pure TiO2 and 8.3 times that of pure CuS. The interface of CuS and TiO2 can provide matched energy levels and built-in electric field to improve separation efficiency of photogenerated electron–hole pairs and charge transfer efficiency. And the surface of TiO2@CuS can provide more active sites for catalysis. Therefore, the heterostructure construction of CuS and TiO2 can significantly enhance the performances of bi-catalysis: electrocatalysis and photocatalysis. The simple method is a beneficial attempt in the field of renewable clean energy and environmental purification. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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