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J. Korean Ceram. Soc. > Volume 58(2); 2021 > Article
Journal of the Korean Ceramic Society 2021;58(2): 135-147.
doi: https://doi.org/10.1007/s43207-020-00103-3
Research progress of defective MoS2 for photocatalytic hydrogen evolution
Chao Liu1, Cui Kong1, Feng-Jun Zhang1,2, Chun-Mei Kai1, Wei-Qin Cai1, Xian-Yang Sun1, Won-Chun Oh3
1Key Laboratory of Functional Molecule Design and Interface Process , Anhui Jianzhu University , Hefei Anhui 230601 , People’s Republic of China
2Anhui Key Laboratory of Advanced Building Materials , Anhui Jianzhu University , Hefei Anhui 230022 , People’s Republic of China
3Department of Advanced Materials Science and Engineering , Hanseo University , Seosan 31962 , Korea
Correspondence  Feng-Jun Zhang ,Email: fjzhang@ahjzu.edu.cn
Won-Chun Oh ,Email: wc_oh@hanseo.ac.kr
Received: September 8, 2020; Revised: November 10, 2020   Accepted: December 5, 2020.  Published online: March 31, 2021.
ABSTRACT
The potential application of MoS2 as a potential H2 precipitation photocatalyst has received widespread attention and is considered a promising alternative to precious metal cocatalysts due to its richness and low cost. However, the catalytic active center of MoS2 is only along the edge of the MoS2 layer. Both theoretical and experimental studies have shown that defect engineering can increase the active site of MoS2 and has superior activity in catalytic reactions. Therefore, this review describes the nature, defect types, and preparation of defective MoS2. Due to the recombination of MoS2 and semiconductor has specific interface characteristics, Schottky heterojunctions can provide accelerated charge separation and lower Schottky barriers for photocatalytic applications, they are eff ective photocatalysts. Therefore, the preparation of the defect MoS2 -supported semiconductor photocatalyst and its application in the photocatalytic water splitting reaction are also introduced. This article’s profound understanding of defects can consolidate basic photocatalysis theory and provide new insights for the rational design of satisfactory defect engineering photocatalytic materials.
Key words: Defect MoS2 · Photocatalytic hydrogen evolution · MoS 2 -supported semiconductor photocatalyst
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