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⋅H₂O in an ambient environment, based on a simple liquid‐phase solution exfoliation. These lateral heterostructures of WS₂/WO₃⋅H₂O have interesting properties, as indicated by enhanced photocatalytic activity toward the degradation of methyl orange (MO).

中文翻译：

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通过单层WS2选择性氧化制备WS2 / WO3·H2O的二维横向异质结构

二维（2D）横向异质结构已成为高级功能材料快速发展领域中的热门话题，但其制造却具有挑战性。从理论上讲，层结构的WS ₂除单层外对氧化是惰性的，单层由于氧气与两面的同时相互作用而可以被选择性地氧化。与理论计算相结合，一个新的方法是为WS的2D横向异质结构的构建成功开发₂ / WO ₃ ⋅H ₂ ö在周围环境中，基于简单的液相溶液剥离。WS的这些侧向异质结构₂ / WO ₃ ⋅H ₂O具有令人感兴趣的特性，如对甲基橙（MO）降解的增强的光催化活性所表明。