Issue 3, 2022

Design and engineering of graphene nanostructures as independent solar-driven photocatalysts for emerging applications in the field of energy and environment

Abstract

There is a growing interest in graphene-based solar-driven photocatalysis to resolve the energy and environmental issues because of their cost-effective synthesis and unique properties. Graphene and its derivatives have extensively been used as support for boosting the efficiency of wide band-gap semiconductor photocatalysts. However, recent studies show that these graphene-based nanomaterials can also serve as independent solar-driven photocatalysts to replace metal/metal-oxide-based solids for emerging applications. This paper deals with the importance of chemical doping in tailoring their optoelectronic/photocatalytic properties to make them excellent standalone metal-free photocatalysts. Heteroatom doping/co-doping induced structural and band-gap engineering of graphene/derivatives with an emphasis on the basic thermodynamic requirements for photocatalytic reactions have been discussed. Thereafter, applications of doped graphene nanomaterials as sole photocatalysts are described in the emerging field of energy and environment (i.e., water splitting, pollutant degradation, and CO2 reduction), highlighting the latest development. Finally, various challenges in developing graphene-based sole photocatalysts and future perspectives are summarized.

Graphical abstract: Design and engineering of graphene nanostructures as independent solar-driven photocatalysts for emerging applications in the field of energy and environment

Article information

Article type
Review Article
Submitted
30 nov 2021
Accepted
26 jan 2022
First published
27 jan 2022

Mol. Syst. Des. Eng., 2022,7, 213-238

Design and engineering of graphene nanostructures as independent solar-driven photocatalysts for emerging applications in the field of energy and environment

Samriti, Manisha, Z. Chen, S. Sun and J. Prakash, Mol. Syst. Des. Eng., 2022, 7, 213 DOI: 10.1039/D1ME00179E

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