Research progress of defective MoS<sub>2</sub> for photocatalytic hydrogen evolution

Liu, Chao; Kong, Cui; Zhang, Feng-Jun; Kai, Chun-Mei; Cai, Wei-Qin; Sun, Xian-Yang; Oh, Won-Chun; Liu, Chao; Kong, Cui; Zhang, Feng-Jun; Kai, Chun-Mei; Cai, Wei-Qin; Sun, Xian-Yang; Oh, Won-Chun

doi:2021.58.2.135

J. Korean Ceram. Soc. > Volume 58(2); 2021 > Article

Review 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 Zhang^1,2, 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