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Interfaces of graphitic carbon nitride based composite photocatalysts

Abstract

Graphitic carbon nitride (g-C3N4), a layered conjugated organic polymer with suitable bandgap values of ~2.7 eV, has been the welcomed nanostructures for photocatalytic applications in energy conversion and environmental purification. Some drawbacks for pure g-C3N4 restrict the enhancement of photocatalytic performances, such as the limited solar-light harvesting ability, low surface area and rapid recombination rate of photoexcited electron-hole pairs. Interface engineering is considered as an effective strategy to address these issues by combining the superiorities of multi-components as well as forming various kinds of interfaces, which , broadly speaking, enable to boost the light-response range, accelerate the transfer and separation of charge carriers, and inhibit the recombination of photoinduced electron-hole pairs. Different from previous reviews, we herein summarize the interfaces-related topics of g-C3N4-based composite photocatalysts, including of the methods to controllably devise and fabricate interface, the techniques to identify interface as well as the types and functions of as-determined interface. Also, the relevant problems and ongoing challenges to design and understand interfaces of g-C3N4-based composite photocatalysts are put forward and highlighted. It is anticipated that this review could open a fresh pathway to incubate further achievements of g-C3N4-based photocatalysts through better understanding and exploiting interfaces.

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Article information


Submitted
24 Aug 2020
Accepted
08 Oct 2020
First published
13 Oct 2020

Inorg. Chem. Front., 2020, Accepted Manuscript
Article type
Review Article

Interfaces of graphitic carbon nitride based composite photocatalysts

A. Zhu, L. Qiao, P. Tan and J. Pan, Inorg. Chem. Front., 2020, Accepted Manuscript , DOI: 10.1039/D0QI01026J

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