Jump to main content
Jump to site search


Self-assembly optimization of cadmium/molybdenum sulfide hybrids by cation coordination competition toward extraordinarily efficient photocatalytic hydrogen evolution

Author affiliations

Abstract

Combining photoharvesting semiconductors with MoS2 co-catalysts is an intriguing approach to develop inexpensive and efficient photocatalysts for visible-light-driven hydrogen (H2) evolution; however, how to coordinate light absorbers and catalytic sites still remains a great challenge. Here, we propose a facile strategy for optimizing assembly of CdS–MoS2 (CM) nanohybrids with controlled active edge exposure by cation coordination competition in one-pot solvothermal synthesis. With the involvement of Cd ions, more formed CdS nanocrystals coordinated preferentially with MoS2 edges self-optimize into unique CM hybrids, which enables the maximum performances of active area and photo-induced electron transfer and injection into the photocatalytic H2 evolution reaction (HER). As a result, the optimum CM hybrids exhibit an outstanding and stable photocatalytic activity with a H2 evolution rate of up to 1009 mmol h−1 g−1, more than 104-fold higher than that of pure CdS, which is the best among the state-of-the-art heterogeneous photocatalysts. This work provides a facile strategy for a controlled configuration of MoS2 edge active sites on photoharvesting semiconductors toward high-efficiency solar photocatalytic H2 generation.

Graphical abstract: Self-assembly optimization of cadmium/molybdenum sulfide hybrids by cation coordination competition toward extraordinarily efficient photocatalytic hydrogen evolution

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Aug 2018, accepted on 07 Sep 2018 and first published on 07 Sep 2018


Article type: Communication
DOI: 10.1039/C8TA07911K
Citation: J. Mater. Chem. A, 2018, Advance Article
  •   Request permissions

    Self-assembly optimization of cadmium/molybdenum sulfide hybrids by cation coordination competition toward extraordinarily efficient photocatalytic hydrogen evolution

    X. Xu, F. Luo, G. Zhou, J. Hu, H. Zeng and Y. Zhou, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C8TA07911K

Search articles by author

Spotlight

Advertisements