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

Xiaorong Gan, Dangyuan Lei (Corresponding Author), Ruquan Ye, Huimin Zhao, Kwok Yin Wong

Research output: Journal article publicationReview articleAcademic researchpeer-review

20 Citations (Scopus)


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.[Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)2003-2022
Number of pages20
JournalNano Research
Issue number6
Publication statusPublished - 17 Jul 2020


  • dimensionality and interface engineering
  • mixed-dimensional heterostructures
  • solar photocatalysis
  • transition metal dichalcogenides
  • two-dimensional semiconductors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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