Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.

Issue 26, 2020
Previous Article Next Article

Charge steering in ultrathin 2D nanomaterials for photocatalysis

Author affiliations


During the photocatalytic reaction, charge carriers play a dominant role in affecting the entire catalytic processes. Accordingly, recent endeavours on charge steering in ultrathin 2D photocatalysts to achieve high photocatalytic efficiency from the aspects of increasing charge generation, boosting charge transport and separation, suppressing charge recombination, and accelerating reaction kinetics are reviewed. Diverse strategies for effective tuning based on ultrathin 2D photocatalysts have been thoroughly discussed. Specifically, for charge generation, disorder engineering, doping, and plasmonic engineering can be effective approaches for extending the absorption range, while thickness control, crystal phase engineering, and molecular incorporation can increase the absorption intensity. For charge transport and separation, tuning the morphology, electrical conductivity, internal electric field and polarization is demonstrated to be able to boost bulk charge separation. Strategies like surface defect engineering, surface modification, incorporation of water-soluble molecular co-catalysts and shortening the surface migration distance are employed for boosting surface charge separation. Subsequently, strategies like constructing 2D/2D heterostructures, Z-scheme systems, in-plane heterojunctions and Moiré superlattices are presented to suppress charge recombination. Finally, surface polarization, co-catalyst modification, single atom engineering, crystal facet engineering, and vacancy engineering are summarized to accelerate reaction kinetics. Moreover, concluding remarks and perspectives on the future exploration of charge manipulation in ultrathin 2D photocatalysts are presented.

Graphical abstract: Charge steering in ultrathin 2D nanomaterials for photocatalysis

Back to tab navigation

Article information

13 May 2020
16 Jun 2020
First published
17 Jun 2020

J. Mater. Chem. A, 2020,8, 12928-12950
Article type
Review Article

Charge steering in ultrathin 2D nanomaterials for photocatalysis

J. Xiong, J. Di and H. Li, J. Mater. Chem. A, 2020, 8, 12928
DOI: 10.1039/D0TA04923A

Social activity

Search articles by author