Nano-Micro Letters

Two-Dimensional Transition Metal Oxides and Chalcogenides-Based Photocatalysts

Farjana Haque1, Torben Daeneke1, Kourosh Kalantar-zadeh1, *, Jian Zhen Ou1, *

Abstract
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Nano-Micro Lett. (2018) 10: 23

First Online: 14 November 2017 (Review)

DOI:10.1007/s40820-017-0176-y

*Corresponding author. E-mail: jianzhen.ou@rmit.edu.au ; kourosh.kalantar@rmit.edu.au

 

Abstract

 


Fig. 2 Crystal Structure of a hexagonal 2H MoS2, b orthorhombic MoO3, c orthorhombic V2O5, d anatase TiO2, e monoclinic WO3, f monoclinic CuO, g wurtzite ZnO, h wurtzite CdS, and i rhombohedral Fe2O3

Two-dimensional (2D) transition metal oxides and chalcogenides (TMO&Cs) based photocatalysts have recently attracted significant attention for addressing the current worldwide challenges of energy shortage and environmental pollution. The ultrahigh surface area and unconventional physiochemical, electronic and optical properties of 2D TMO&Cs have been demonstrated to facilitate photocatalytic applications. This review provides a concise overview of properties, synthesis methods and applications of 2D TMO&Cs based photocatalysts. Particular attention is paid on the emerging strategies to improve the abilities of light harvesting and photo-induced charge separation for enhancing photocatalytic performances, which include elemental doping, surface functionalization as well as heterojunctions with semiconducting and conductive materials. The future opportunities regarding the research pathways of 2D TMO&Cs based photocatalysts are also presented.


 

Keywords

Hydrogen evolution reaction; Pollutant degradation; Water splitting; Layered material; Solar; Carbon reduction

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