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Current Nanoscience

Editor-in-Chief

ISSN (Print): 1573-4137
ISSN (Online): 1875-6786

Review Article

Graphitic Carbon Nitride-based Photocatalysts for Environmental Remediation of Organic Pollutants

Author(s): Mayuri S. Umekar, Ganesh S. Bhusari*, Toshali Bhoyar, Vidyasagar Devthade, Bharat P. Kapgate, Ajay P. Potbhare, Ratiram G. Chaudhary and Ahmed A. Abdala*

Volume 19, Issue 2, 2023

Published on: 28 March, 2022

Page: [148 - 169] Pages: 22

DOI: 10.2174/1573413718666220127123935

Price: $65

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Abstract

Graphitic carbon nitride (g-C3N4) is an extraordinary semiconductor photocatalyst (PC), which transforms solar energy into chemical energy for the photodisintegration of several noxious organic contaminants into non-toxic derivatives. Polymeric g-C3N4 is a metal-free PC with high chemical stability, eco-friendly composition, and suitable energy band potential that absorb a significant portion of the solar spectrum. Despite its outstanding characteristics, g-C3N4 has some limitations, including low visible light absorption, low surface area, and rapid recoupling of charge carriers. These limitations over-shaded its proficient efficiency as a PC. The current g-C3N4 related research focuses on developing g-C3N4 nanocomposites (NCs) with high-surface-area, broad lightabsorbing, and reduced recombination via physicochemical modifications. This review highlights the latest developments in the synthesis and application of pristine g-C3N4 and its NCs with inorganic constituent and nanomaterials. A critical analysis of the strategies to enhance g-C3N4’s photocatalytic efficiency via excited charge separation and visible light absorption is also presented. Furthermore, the photocatalytic degradation of organic pollutants (OPs), including dyes, phenol, antibiotics, and pharmaceutical drugs, is summarized herewith.

Keywords: g-C3N4-based nanostructures, photocatalysis, charge separation, energy transformation, photodegradation, organic pollutant.

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