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Graphitic carbon nitride based nanocomposites as visible-light driven photocatalysts for environmental purification

Abstract

Graphitic carbon nitride (g-C3N4) has aroused extensive concern since it was first reported as a metal-free conjugated semiconductor photocatalyst to realize the direct conversion of solar energy to chemical energy. Due to its abundant resources, facile synthesis methods, appealing electronic structure combined with a medium band gap (2.7 eV) and high physicochemical stability, g-C3N4 quickly becomes a hotspot in photocatalysis fields. However, practical applications are still hindered by several obstacles, such as high recombination rate of photo-generated electron-hole pairs, low electrical conductivity, small specific surface area and lacking of visible light absorption above 460nm. Hybridizing g-C3N4 with other components may be a promising solution. On account of the significant progress in exploitation of g-C3N4 based nanocomposites, we herein present an updated and comprehensive review on the recent advances on different dimensional g-C3N4 based nanocomposites. These specially structured nanocomposites, such as g-C3N4 nanotube-, g-C3N4 nanofiber-, g-C3N4 nanosheet- and g-C3N4 nanosphere based nanocomposites can be applied in a number of fields such as pollutant degradation, heavy metal ions reduction, bacterial disinfection and CO2 reduction. And this review mainly focus on fabrication strategies, properties, photocatalytic mechanisms and applications of different dimensional g-C3N4 based nanocomposites and then ends with a brief summary and prospective.

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Publication details

The article was received on 27 Mar 2017, accepted on 02 May 2017 and first published on 09 May 2017


Article type: Critical Review
DOI: 10.1039/C7EN00255F
Citation: Environ. Sci.: Nano, 2017, Accepted Manuscript
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    Graphitic carbon nitride based nanocomposites as visible-light driven photocatalysts for environmental purification

    F. Ding, D. Yang, Z. Tong, Y. Nan, Y. Wang, X. Zou and Z. Jiang, Environ. Sci.: Nano, 2017, Accepted Manuscript , DOI: 10.1039/C7EN00255F

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