Fabrication of Two-Dimensional Lateral Heterostructures of WS2 /WO3 ⋅H2 O Through Selective Oxidation of Monolayer WS2.
Two-dimensional (2D) lateral heterostructures have emerged as a hot topic in the fast evolving field of advanced functional materials , but their fabrication is challenging. The layer-structured WS2 was theoretically demonstrated to be inert to oxidation except for the monolayer, which can be selectively oxidized owing to the simultaneous interaction of oxygen with both sides. Combined with the theoretical calculations, a new method was developed for the successful construction of 2D lateral heterostructures of WS2 /WO3 ⋅H2 O in an ambient environment, based on a simple liquid-phase solution exfoliation. These lateral heterostructures of WS2 /WO3 ⋅H2 O have interesting properties, as indicated by enhanced photocatalytic activity toward the degradation of methyl orange (MO).
College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052 (China).
Pengshang
P
Zhou
College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052 (China). qunxu@zzu.edu.cn.
Qun
Q
Xu
College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052 (China).
Hongxiang
H
Li
Centre for Clean Environment and Energy and Griffith School of Environment, Griffith University (Australia). yun.wang@griffith.edu.au.
Yun
Y
Wang
College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052 (China).
Bo
B
Yan
National Analytical Research Center of Electrochemistry and Spectroscopy, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (China).
Yunchun
Y
Zhou
College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052 (China).
Jiafu
J
Chen
College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052 (China).
Jianan
J
Zhang
College of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450052 (China).
Kaixi
K
Wang
heterostructures; nanosheets; photocatalysis; tungsten oxides; tungsten sulfides