Fabrication of layered (CdS-Mn/MoS2/CdTe)-promoted TiO2 nanotube arrays with superior photocatalytic properties

被引：35

作者：

Feng, Hui ^{[1
]}

Tang, Niu ^{[1
]}

Zhang, Songbai ^{[1
]}

Liu, Bo ^{[1
]}

Cai, Qingyun ^{[2
]}

机构：

[1] Hunan Univ Arts & Sci, Coll Chem & Chem Engn, Changde 415000, Hunan, Peoples R China

[2] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2017年 / 486卷

基金：

美国国家科学基金会;

关键词：

Stepwise level; MoS2; nanosheet; TiO2; NTAs; Hydrothermal; SILAR; Electrodeposite; Photocatalytic; SENSITIZED SOLAR-CELLS; QUANTUM DOTS; HYDROGEN EVOLUTION; CHARGE SEPARATION; P-NITROPHENOL; NANOCRYSTALS; CDS; MOS2; NANOSHEETS; HETEROSTRUCTURES;

D O I：

10.1016/j.jcis.2016.09.048

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel (CdS-MniMoS(2)/CdTe)-sensitized TiO2 nanotube arrays (NTAs) photoelectrode has been prepared by electrodeposite, successive ionic layer adsorption and reaction (SILAR) coupled with hydrothermal method. When a ZnS layer was added on the top of CdS-Mn/MoS2/CdTe/TiO2, a notable red-shift and high absorption was observed in the visible light region. The photocurrent density (mA/cm(2)) systematically increases from TiO2 NTAs (0.43), CdTe/TiO2 (1.09), MoS2/CdTe/TiO2 (1.80), CdS-Mn/MoS2/CdTe/TiO2 (2.40), to ZnS/CdS-MniMoS(2)/CdTe/TiO2 (3.41) under visible light irradiation, due to the type-II semiconductor heterostructures comprising multiple components with a staggered band offset. Such a heterostructure possesses an enhanced photocatalytic performance towards degradation of organic contaminant, e.g. P-Nitrophenol (PNP) and Rhodamine B (RhB). (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：58 / 66

页数：9

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