二硫化锡晶面光催化氧化正丁基磺原酸钠的各向异性

金属矿山 ›› 2025, Vol. 54 ›› Issue (9): 287-293.

二硫化锡晶面光催化氧化正丁基磺原酸钠的各向异性

覃卓林^1,2 　杨　浪^1,2 　蔡　凯^1,2 　钟书泷^1,2 　吴志军³ 　郑永明⁴ 　饶　峰^1,2

1. 福州大学紫金地质矿业学院,福建福州 350108;2. 福建省新能源金属绿色提取与高值利用重点实验室,福建福州 350108; 3. 福建龙净新陆科技发展有限公司,福建福州 350016;4. 云南云天化股份有限公司,云南昆明 650228

出版日期:2025-09-15 发布日期:2025-10-10
通讯作者: 杨　浪(1992—),男,副教授,博士,硕士研究生导师。
作者简介:覃卓林(1999—),男,硕士研究生。
基金资助:
云南省重大科技专项(编号:202302AF080004);福建省产学研合作项目(编号:2023Y4017)。

Anisotropy of Photocatalytic Oxidation of Sodium Butyl Xanthate on Tin Disulfide Crystal Facets

QIN Zhuolin ^1,2 　 YANG Lang ^1,2 　 CAI Kai ^1,2 　 ZHONG Shulong ^1,2 　 WU Zhijun ³ ZHENG Yongming ⁴ 　 RAO Feng ^1,2

1. Zijin School of Geology and Mining,Fuzhou University,Fuzhou 350108,China;2. Fujian Key Laboratory of Green Extraction and High-Value Utilization of New Energy Metals,Fuzhou 350108,China;3. Fujian Longking New Land Technology Co. ,Ltd. ,Fuzhou,Fujian 350016,China;4. Yunnan Yuntianhua Co. ,Ltd. ,Kunming 650228,China

Online:2025-09-15 Published:2025-10-10

摘要/Abstract

摘要： 通过水热法制备了不同优势晶面暴露的二硫化锡(SnS2 )光催化剂,系统研究了其结构、形貌、光催化性能及机理。采用 X 射线衍射仪(XRD)、扫描电子显微镜(SEM)、紫外-可见漫反射光谱(UV-DRS)等手段对 SnS2 样品进行了表征,结果表明,成功合成了(001)、(101)和(110)晶面暴露的 SnS2 ,分别呈现块状、花状和六角片状形貌。在模拟太阳光照射下,SnS2 晶面表现出显著的正丁基磺原酸钠( SBX) 催化氧化各向异性,由小到大依次为( 101)、 (001)、(110)。 (110)晶面优异的光催化活性归因于(110)晶面促进了光生载流子的迁移、降低了电子-空穴对的复合率,并增强了光吸收能力。自由基猝灭试验表明, 1O2 是光催化降解过程中的主要活性物种。本研究为通过晶面调控优化 SnS2 光催化剂的性能提供了理论依据,并为其在污水处理中的应用提供了参考。

关键词: 二硫化锡　水热合成　晶面调控　光催化　性能研究

Abstract: This study prepared tin disulfide (SnS2 ) photocatalysts with different dominant crystal facets exposed using a hydrothermal method,and systematically investigated their structure,morphology,photocatalytic performance,and mechanisms. The SnS2 samples were characterized using X-ray diffraction (XRD),scanning electron microscopy (SEM),and ultraviolet-visible diffuse reflectance spectroscopy (UV-DRS). The results indicated that SnS2 with exposed (001),(101),and (110) crystal facets were successfully synthesized,exhibiting block-like,flower-like,and hexagonal flake morphologies respectively. Under simulated sunlight irradiation,the crystal facets of SnS2 demonstrated significant catalytic oxidation anisotropy for sodium butyl xanthate (SBX),following the order (101),(001),(110). The superior photocatalytic activity of the (110) facet was attributed to its enhanced photogenerated carrier migration,reduced electron-hole recombination rate,and improved light absorption capacity. Radical quenching experiments revealed that 1O2 served as the primary active species in the photocatalytic degradation process. This research provided a theoretical basis for optimizing the performance of SnS2 photocatalysts through crystal facet engineering and offered references for their application in wastewater treatment.

Key words: tin disulfide,hydrothermal synthesis,cystal facet control,photocatalysis,performance study

中图分类号:

X703
O644

覃卓林, 　杨　浪, 　蔡　凯, 　钟书泷, 　吴志军　郑永明　饶　峰, . 二硫化锡晶面光催化氧化正丁基磺原酸钠的各向异性[J]. 金属矿山, 2025, 54(9): 287-293.

QIN Zhuolin , 　 YANG Lang , 　 CAI Kai , 　 ZHONG Shulong , 　 WU Zhijun 　 ZHENG Yongming 　 RAO Feng , . Anisotropy of Photocatalytic Oxidation of Sodium Butyl Xanthate on Tin Disulfide Crystal Facets [J]. Metal Mine, 2025, 54(9): 287-293.

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