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J Colloid Interface Sci. 2019 May 15;544:1-7. doi: 10.1016/j.jcis.2019.02.080. Epub 2019 Feb 23.

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

Author information

1
Guangling College, Yangzhou University, Yangzhou, Jiangsu 225009, PR China; School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China.
2
Guangling College, Yangzhou University, Yangzhou, Jiangsu 225009, PR China.
3
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China. Electronic address: hanjie@yzu.edu.cn.

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.

KEYWORDS:

CdS; Photocatalyst; Polydopamine; TiO(2); Visible light

PMID:
30818155
DOI:
10.1016/j.jcis.2019.02.080

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