Hierarchical photocatalyst of In2S3 on exfoliated MoS2 nanosheets for enhanced visible-light-driven Aza-Henry reaction

• Published in: Applied catalysis. B, Environmental Vol. 237; pp. 288 - 294
• Main Authors: Li, Zhen, Zhou, Zhou, Ma, Jingwen, Li, Yang, Peng, Wenchao, Zhang, Guoliang, Zhang, Fengbao, Fan, Xiaobin
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05.12.2018
• Subjects: Hierarchical heterostructure; In2S3; MoS2; Organic synthesis; Photocatalysis; Organic synthesis; Hierarchical heterostructure; In2S3; MoS2; Photocatalysis
• ISSN: 0926-3373; 1873-3883
• DOI: 10.1016/j.apcatb.2018.05.087

[Display omitted] •A two-dimensional hierarchical In2S3/MoS2 composite is designed and constructed.•In2S3/MoS2 shows superior photcatalytic activity for Aza-Henry reaction.•Compositional and structural features of In2S3/MoS2 enhance the catalytic activity. Exploration of appropriate photocatalysts for visible-light-driven organic synthesis is of great importance. Here we design and construct a two-dimensional hierarchical In2S3/MoS2 composite as an excellent and reusable photocatalyst for Aza-Henry reaction. The dahlia-flower-like In2S3 nanostructures are homogeneously grown on both sides of the two-dimensional MoS2 nanosheets via a hydrothermal reaction. The as-prepared two-dimensional hierarchical In2S3/MoS2 composite exhibits higher photocatalytic performance than pure In2S3. The hierarchical heterostructure can enhance the light absorption in the visible region, facilitate the separation of the photo-induced electron–hole pairs, offer rich active sites for photoredox reactions and promote the generation and migration of the O2‐ and h+. Profiting from these compositional and structural features, the two-dimensional hierarchical In2S3/MoS2 composite shows remarkably enhanced photocatalytic performance and good stability.