Journal
JOURNAL OF ENERGY CHEMISTRY
Volume 27, Issue 4, Pages 1111-1123Publisher
ELSEVIER
DOI: 10.1016/j.jechem.2018.02.018
Keywords
Photocatalysis; g-C3N4; Light harvesting; Charge separation; Surface kinetics; Solar energy conversion
Funding
- Australian Research Council through DP program
- Australian Research Council through FF program
- Australian Government through Australian Government Research Training Program Scholarship
- National Science Foundation of China [513228201]
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Photocatalysis, which utilizes solar energy to trigger chemical reactions, is one of the most desirable solar-energy-conversion approaches. Graphitic carbon nitride (g-C3N4), as an attractive metal-free photocatalyst, has drawn worldwide research interest in the area of solar energy conversion due to its easy synthesis, earth-abundant nature, physicochemical stability and visible-light-responsive properties. Over the past ten years, g-C3N4 based photocatalysts have experienced intensive exploration, and great progress has been achieved. However, the solar conversion efficiency is still far from industrial applications due to the wide bandgap, severe charge recombination, and lack of surface active sites. Many strategies have been proposed to enhance the light absorption, reduce the recombination of charge carriers and accelerate the surface kinetics. This work makes a crucial review about the main contributions of various strategies to the light harvesting, charge separation and surface kinetics of g-C3N4 photocatalyst. Furthermore, the evaluation measurements for the enhanced light harvesting, reduced charge recombination and accelerated surface kinetics will be discussed. In addition, this review proposes future trends to enhance the photocatalytic performance of g-C3N4 photocatalyst for the solar energy conversion. (C) 2018 Published by Elsevier B.V. and Science Press.
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