Transition metal dichalcogenide-based mixed-dimensional hetero-structures for visible-light-driven photocatalysis:Dimensionality and interface engineering

• 作者: Xiaorong Gan Dangyuan Lei Ruquan Ye Huimin Zhao Kwok-Yin Wong
• 来源期刊: 纳米研究（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: Catalysis/Energy
• 页码范围: 2003-2022
• 页数: 20页
• 语种: 英文

摘要

Two-dimensional (2D) transition metal dichalcogenides (TMDCs) are emerging as promising building blocks of high-performance photocatalysts for visible-light-driven water splitting because of their unique physical,chemical,electronic,and optical properties.This review focuses on the fundamentals of 2D TMDC-based mixed-dimensional heterostructures and their unique properties as visible-light-driven photocatalysts from the perspective of dimensionality and interface engineering.First,we discuss the approaches and advantages of surface modification and functionalization of 2D TMDCs for photocatalytic water splitting under visible-light illumination.We then classify the strategies for improving the photocatalytic activity of 2D TMDCs via combination with various low-dimensional nanomaterials to form mixed-dimensional heterostructures.Further,we highlight recent advances in the use of these mixed-dimensional heterostructures as high-efficiency visible-light-driven photocatalysts,particularly focusing on synthesis routes,modification approaches,and physiochemical mechanisms for improving their photoactivity.Finally,we provide our perspectives on future opportunities and challenges in promoting real-world photocatalytic applications of 2D TMDC-based heterostructures.