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

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Abstract

Graphitic carbon nitride (g-C3N4) has attracted enormous attention since it was first reported as a metal-free conjugated semiconductor photocatalyst that could 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 has quickly became a hotspot in photocatalysis fields. However, practical applications are still hindered by several obstacles, such as the high recombination rate of photo-generated electron–hole pairs, low electronic conductivity, small specific surface area and lack of visible light absorption above 460 nm. Hybridizing g-C3N4 with other components has been proved as a promising solution. On account of the great dedication and significant progress in exploitation of g-C3N4-based nanocomposites, we herein present an updated and comprehensive review on the recent advances in 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 environmentally-relevant fields such as pollutant degradation, heavy metal ions reduction, bacterial disinfection and CO2 reduction. This review primarily focuses on fabrication methods, properties, photocatalytic mechanisms and applications of different dimensional g-C3N4-based nanocomposites and ends with a brief summary and perspective.

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

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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, Advance Article
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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, Advance Article , DOI: 10.1039/C7EN00255F

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