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Core/shell structured CdS/polydopamine/TiO2 ternary hybrids as highly active visible-light photocatalysis

Author:
Wang, Minggui, Cui, Zhengxing, Yang, Mang, Lin, Longjie, Chen, Xichang, Wang, Min, Han, Jie
Source:
Journal of colloid and interface science 2019 v.544 pp. 1-7
ISSN:
0021-9797
Subject:
coatings, dopamine, hydrolysis, nanospheres, phenol, photocatalysis, titanium dioxide
Abstract:
Core/shell structured CdS/polydopamine/TiO2 (CdS/PDA/TiO2) ternary hybrids were fabricated by sequentially coating of PDA and TiO2 on CdS nanospheres through dopamine self-polymerization and TBOT hydrolysis and hydrothermal processes. The reaction rate constants of CdS/PDA/TiO2 ternary hybrids toward the degradation of RhB, MB and phenol were more than 3 times higher than those of CdS/TiO2 hybrids. The remarkably improved photocatalytic activity was attributed to enhanced light absorption and charge carrier separation efficiency associated with the introduction of PDA.
Agid:
6347855