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Graphitic Carbon Nitride Based Materials Towards Photoproduction of H2O2

Von Wiley-VCH zur Verfügung gestellt

A new view: In recent decades, there has been considerable interest in graphitic carbon nitride (g-C3N4) based materials for producing fine chemicals by means of photocatalysis. This review provides an overview of state-of-the-art studies on the photocatalytic generation of H2O2 from 2014 to date. The review discusses strategies to modify g-C3N4 to enhance H2O2 photoproduction, including single- and multi-element doping, defect engineering, morphological modifications, as well as the application of junction-based photocatalysts, and provides an outlook on the field with a view to overcoming challenges and obstacles faced.


Abstract

Hydrogen peroxide (H2O2) can be considered as one of the world's indispensable chemicals. However, the synthetic process can prompt several severe environmental and human health issues. However, solar H2O2 production may provide opportunities to mitigate such issues. Graphitic carbon nitride (g-C3N4) has emerged as one promising material for photocatalytic applications due to its unique properties. Although tremendous efforts in engineering g-C3N4 have been proposed to improve catalytic results, the materials obtained still have some issues. Additionally, the mechanisms behind the production of H2O2 by using such materials are not yet fully understood. Herein, we conducted a literature survey reviewing the production of H2O2 using g-C3N4-based materials. The essential aspects of and current challenges in photocatalytic H2O2 generation are discussed, which may provide insight for researchers to overcome barriers and develop sustainable methods for H2O2 production.

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