Facile fabrication of Bi2S3/SnS2 heterojunction photocatalysts with efficient photocatalytic activity under visible light

被引：90

作者：

Gao, Xiaomin ^{[1
]}

Huang, Guanbo ^{[1
]}

Gao, Haihuan ^{[2
]}

Pan, Cheng ^{[1
]}

Wang, Huan ^{[1
]}

Yan, Jing ^{[1
,3
]}

Liu, Yu ^{[1
]}

Qiu, Haixia ^{[1
,3
]}

Ma, Ning ^{[1
]}

Gao, Jianping ^{[1
,3
]}

机构：

[1] Tianjin Univ, Sch Sci, Dept Chem, Tianjin 300072, Peoples R China

[2] Tianjin Fourth Middle Sch, Tianjin 300021, Peoples R China

[3] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 674卷

基金：

美国国家科学基金会;

关键词：

Photocatalysts; Bi2S3/SnS2; heterojunctions; Degradation; Methyl orange; Visible light; HEXAGONAL SNS2 NANOSHEETS; ION-EXCHANGE SYNTHESIS; HIGH-PERFORMANCE; TIN DISULFIDE; SOLVOTHERMAL SYNTHESIS; AZO-DYE; NANOCOMPOSITES; SEMICONDUCTOR; OXIDATION; REDUCTION;

D O I：

10.1016/j.jallcom.2016.03.031

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：

In this work, Bi2S3/SnS2 heterojunction photocatalysts were prepared by combining a hydrothermal technique and a facile in situ growth method. The nanocomposites were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, inductively coupled plasma spectroscopy, X-ray photoelectron spectroscopy, UVeVis diffusion reflectance spectroscopy and room-temperature photoluminescence spectra. Their photocatalytic performances were evaluated by degrading methyl orange (MO) in aqueous solution (50 mg/L) under visible light (lambda > 420 nm) irradiation. It was found that when the mass percentage of Bi2S3 in Bi2S3/SnS2 was 7.95 wt%, the as-prepared Bi2S3/SnS2 nanocomposite showed the best photocatalytic activity for the degradation of MO. The highly improved performance of the Bi2S3/SnS2 nanocomposite was mainly ascribed to the efficient charge separation. (C) 2016 Elsevier B. V. All rights reserved.

引用

页码：98 / 108

页数：11

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