Intercalation oxidation: A strategy for MoS2 modification to enable photodegradation of pollutants

被引:9
作者
Zhao, Jiaqi [1 ]
Tao, E. [1 ]
Yang, Shuyi [1 ]
Chen, Liang [1 ]
Zhou, Ruifeng [1 ]
Qian, Jianhua [3 ]
Li, Yun [2 ]
机构
[1] Bohai Univ, Inst Ocean Res, Inst Environm Res, Coll Chem & Mat Engn,Liaoning Key Lab Chem Clean P, Jinzhou 121013, Liaoning, Peoples R China
[2] Yantai Univ, Chem & Chem Engn Coll, Yantai 264005, Shandong, Peoples R China
[3] Liaoning Shihua Univ, Coll Chem & Mat Sci, Fushun 113006, Liaoning, Peoples R China
基金
中国国家自然科学基金;
关键词
Photocatalyst; Intercalated oxidation; Interlayer spacing; Degradation mechanism; Z -type heterojunction; RHODAMINE-B; HOLLOW SPHERE; DEGRADATION; PERFORMANCE; NANOSHEETS; HYBRID; DRIVEN; ARRAYS;
D O I
10.1016/j.apsusc.2023.157316
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
MoS2 and related modified materials have received more attention as core technologies in mineralized dye molecules, and the injection of intercalators into MoS2 interlayers to change the MoS2 layer spacing to obtain materials with desirable photocatalytic properties is the current trend in modification. Herein, intercalated oxide materials (MSMO/T) were prepared by oxygen-limited calcination, in which the chemical composition and the resulting structure can be effectively controlled to obtain the desired performance for photocatalytic degradation of pollutants by simply changing the calcination temperature. Due to the beneficial structure of MoS2-MoO3 formed by oxygen intercalation and the Z-type heterojunction formed between it and TiO2, the catalytic per-formance is presented that is superior to that of a single material. Specifically, the MoS2 is structurally engineered and bound by oxygen intercalation layers. Effective mineralized degradation of pollutants under visible light can be achieved within 120 min without external push, and the relevant characterization demonstrates excellent photoelectric properties and long-term durability, making it an efficient catalyst for degrading dye molecules in water. This work provides an efficient and convenient way to modify transition metal disulfides for use as advanced materials for photocatalysis as well as other applications.
引用
收藏
页数:12
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