Issue 10, 2022

Challenges surrounding nanosheets and their application to solar-driven photocatalytic water treatment

Abstract

Industrialisation has deepened the water crisis in arid climates, where wastewater runoff from heavy industry has polluted groundwater sources so heavily that traditional methods of water treatment have proven ineffective. Photocatalysis is an emerging technology which has the potential to treat water using only sunlight, but is unrealised using traditional, inefficient photocatalysts (e.g. TiO2). Recently, a slew of visible light active 2D nanomaterials such as MoS2 and g-C3N4, have shown great promise, with others playing an essential supporting role in larger composites (e.g. graphene). Scalable synthesis of these nanosheets has remained elusive, as they require careful synthesis tailored towards their role within a photocatalytic composite. Along with recovering the nanosheets post-treatment, these remain the greatest challenges barring the adoption of these materials more generally. Through this review, we find that research into nanosheet-based photocatalysis should focus on developing materials from a systems level perspective, with careful consideration taken to how the material presented is to be applied in clean water technologies and synthesised from its base components.

Graphical abstract: Challenges surrounding nanosheets and their application to solar-driven photocatalytic water treatment

Article information

Article type
Review Article
Submitted
10 Marts 2022
Accepted
24 Apr. 2022
First published
26 Apr. 2022
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2022,3, 4103-4131

Challenges surrounding nanosheets and their application to solar-driven photocatalytic water treatment

D. T. Pérez-Álvarez, J. Brown, E. A. Elgohary, Y. M. A. Mohamed, H. A. El Nazer, P. Davies and J. Stafford, Mater. Adv., 2022, 3, 4103 DOI: 10.1039/D2MA00276K

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