Sb2S3/Sn3O4 S型异质结构光催化剂的制备及其降解甲基橙的性能

doi:10.11901/1005.3093.2025.339

材料研究学报

2026, Vol. 40

Issue (5): 352-360 DOI: 10.11901/1005.3093.2025.339

光催化专题

本期目录 | 过刊浏览

Sb₂S₃/Sn₃O₄ S型异质结构光催化剂的制备及其降解甲基橙的性能

尹晓彤¹, 田雨欣¹, 冯盛¹, 李文颖¹, 王立兴¹, 张丽娜¹^,²(

), 张伟¹^,²

^1.渤海大学物理科学与技术学院锦州 121013
^2.渤海大学海洋研究院锦州 121013

Preparation of Sb₂S₃/Sn₃O₄ S-scheme Heterostructures and Its Performance for Methyl Orange Photocatalytic Degradation

YIN Xiaotong¹, TIAN Yuxin¹, FENG Sheng¹, LI Wenying¹, WANG Lixing¹, ZHANG Lina¹^,²(

), ZHANG Wei¹^,²

^1.College of Physical Science and Technology, Bohai University, Jinzhou 121013, China
^2.Institute of Ocean Research, Bohai University, Jinzhou 121013, China

引用本文:

尹晓彤, 田雨欣, 冯盛, 李文颖, 王立兴, 张丽娜, 张伟. Sb₂S₃/Sn₃O₄ S型异质结构光催化剂的制备及其降解甲基橙的性能[J]. 材料研究学报, 2026, 40(5): 352-360.
Xiaotong YIN, Yuxin TIAN, Sheng FENG, Wenying LI, Lixing WANG, Lina ZHANG, Wei ZHANG. Preparation of Sb₂S₃/Sn₃O₄ S-scheme Heterostructures and Its Performance for Methyl Orange Photocatalytic Degradation[J]. Chinese Journal of Materials Research, 2026, 40(5): 352-360.

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摘要:

在Sb₂S₃纳米棒表面原位生长Sn₃O₄纳米片制备出Sb₂S₃/Sn₃O₄ S型异质结构光催化剂，使用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、X射线光电子能谱(XPS)、紫外-可见吸收光谱(UV-Vis)、光电流、电化学阻抗谱(EIS)和光致发光光谱(PL)等手段表征其晶相结构、形貌、元素分布、光吸收性能以及电荷分离效率，研究了这种催化剂降解甲基橙(MO，初始浓度20 mg/L)的性能。结果表明，这种催化剂中的异质结构使其光催化活性显著提高，优化样品(Sb₂S₃添加量为0.1 g)在40 min内对MO的降解率达到91%。XPS分析、带隙结构分析以及自由基捕获实验的结果表明，这种异质结构中的光生载流子遵循S型电荷转移机制。

关键词 ：无机非金属材料, S型异质结, 光催化, Sb₂S₃, Sn₃O₄, 甲基橙降解

Abstract：

A photocatalyst of Sb₂S₃/Sn₃O₄ S-scheme heterojunction was prepared via hydrothermal method by in-situ growing Sn₃O₄ nanosheets on the surface of Sb₂S₃ nanorods. The phase constituents, morphology, elemental distribution, light absorption properties, and charge separation efficiency of the acquired photocatalyst were characterized by using X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, UV-Visible absorption spectroscopy, photocurrent, electrochemical impedance spectroscopy and photoluminescence spectroscopy. The performance of Sb₂S₃/Sn₃O₄ heterojunction catalysts with different deposited amount of Sb₂S₃ for degradation of methyl orange (MO, initial concentration: 20 mg/L) was investigated under visible light irradiation. The results indicate that these photocatalysts with heterogeneous structure all exhibit significantly high photocatalytic activity, the optimized photocatalyst with 0.1 g of Sb₂S₃ achieves a degradation rate of 91% for MO within 40 min. The results of XPS analysis, band gap structure and free radical trapping analysis revealed that the photogenerated charge carriers in this heterostructure follow a S-scheme transfer mechanism.

Key words： inorganic non-metallic materials S-scheme heterostructure photocatalysis Sb₂S₃ Sn₃O₄ methyl orange degradation

收稿日期: 2025-11-17

ZTFLH:

X703.1

基金资助:渤海大学海洋研究院开放课题(BDHYYJY2022014);渤海大学海洋研究院开放课题(2022009)

通讯作者: 张丽娜，副教授，zhanglina@bhu.edu.cn，研究方向为废水处理，光电功能材料与器件

Corresponding author: ZHANG Lina, Tel: 18704208573, E-mail: zhanglina@bhu.edu.cn

作者简介: 尹晓彤，女，1999年生，硕士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2025.339 或 https://www.cjmr.org/CN/Y2026/V40/I5/352

图1 Sb2S3, Sn3O4和SS(0.1)的SEM图，SS(0.1)的TEM图及框选区的HRTEM图和SS(0.1)中Sn、O、Sb和S的EDS面分布图

图2 Sb2S3、Sn3O4及SS(0.1)样品的XRD谱、XPS全谱以及Sn 3d、O 1s、Sb 3d以及S 2p的XPS高分辨谱

图3 Sn3O4、Sb2S3和SS(0.1)的紫外-可见吸收光谱以及Sb2S3和Sn3O4的(αhν)2与光子能量(hν)的关系

图4 Sb2S3、Sn3O4和SS(0.1)的瞬态光电流、电化学阻抗谱和PL光谱

图5 催化剂的降解效率曲线、伪一级动力学拟合曲线、表观速率常数对比以及SS(0.1)催化剂的循环稳定性

图6 Sb2S3和Sn3O4的Mott-Schottky曲线

图7 不同捕获剂对SS(0.1)降解MO效率的影响、⋅O2-的ESR信号以及⋅OH的ESR信号

图8 Sb2S3/Sn3O4异质结构光催化降解MO时的电荷转移路径示意图

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