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Fabrication of Two‐Dimensional Lateral Heterostructures of WS 2 /WO 3 ⋅H 2 O Through Selective Oxidation of Monolayer WS 2
Author(s) -
Zhou Pengshang,
Xu Qun,
Li Hongxiang,
Wang Yun,
Yan Bo,
Zhou Yunchun,
Chen Jiafu,
Zhang Jianan,
Wang Kaixi
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201508216
Subject(s) - heterojunction , fabrication , monolayer , materials science , exfoliation joint , methyl orange , inert , oxygen , photocatalysis , chemical engineering , nanotechnology , optoelectronics , chemistry , catalysis , graphene , organic chemistry , medicine , alternative medicine , pathology , engineering
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 WS 2 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 WS 2 /WO 3 ⋅H 2 O in an ambient environment, based on a simple liquid‐phase solution exfoliation. These lateral heterostructures of WS 2 /WO 3 ⋅H 2 O have interesting properties, as indicated by enhanced photocatalytic activity toward the degradation of methyl orange (MO).