Jump to main content
Jump to site search


The dual-defective SnS2 monolayers: promising 2D photocatalysts for overall water splitting

Author affiliations

Abstract

Photocatalytic water splitting is a promising way to produce hydrogen fuel from solar energy. In this regard, the search for new photocatalytic materials that can efficiently split water into hydrogen is essential. Here, using first-principles simulations, we demonstrate that the dual-defective SnS2 (Ni-SnS2-VS), by both single-atom nickel doping and sulfur monovacancies, becomes a promising two-dimensional photocatalyst compared with SnS2. The Ni-SnS2-VS monolayer, in particular, exhibits a suitable band alignment that perfectly overcomes the redox potentials for overall water splitting. The dual-defective monolayer displays remarkable photocatalytic activity, a spatially separated carrier, a broadened optical absorption spectrum, and enhanced adsorption energy of H2O. Therefore, the dual-defective SnS2 monolayer can serve as an efficient photocatalyst for overall water splitting to produce hydrogen fuel. Furthermore, a novel dual-defect method can be an effective strategy to enhance the photocatalytic behavior of 2D materials; it may pave inroads in the development of solar-fuel generation.

Graphical abstract: The dual-defective SnS2 monolayers: promising 2D photocatalysts for overall water splitting

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 Aug 2019, accepted on 08 Nov 2019 and first published on 08 Nov 2019


Article type: Paper
DOI: 10.1039/C9CP04649F
Phys. Chem. Chem. Phys., 2019, Advance Article

  •   Request permissions

    The dual-defective SnS2 monolayers: promising 2D photocatalysts for overall water splitting

    B. Sainbileg, Y. Lai, L. Chen and M. Hayashi, Phys. Chem. Chem. Phys., 2019, Advance Article , DOI: 10.1039/C9CP04649F

Search articles by author

Spotlight

Advertisements