Journal of Environmental Chemical Engineering, volume 8, issue 4, pages 103896
A review on TiO2/g-C3N4 visible-light- responsive photocatalysts for sustainable energy generation and environmental remediation
1
Centre for Nanoscience and Nanotechnology, S‘O’A Deemed to be University, Bhubaneswar, 751030, Odisha, India
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Publication type: Journal Article
Publication date: 2020-08-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 7.7
ISSN: 22133437
Process Chemistry and Technology
Pollution
Waste Management and Disposal
Chemical Engineering (miscellaneous)
Abstract
Semiconductor based photocatalysis has been considered as a propitious technology to resolve sustainably energy scarcity and environmental pollution across the globe. Though TiO 2 and graphitic carbon nitride (g-C 3 N 4 ) has extensively been investigated among various semiconductors, their prospective applications are restricted due to high rate of recombination of photoinduced charge carriers. Moreover, the UV active wide band gap of TiO 2 limits it utilization of inexhaustible solar radiation, which consists of only 7 % of UV component. In this review, these issues have been addressed with illustration of different strategies employed for construction of TiO 2 /g-C 3 N 4 (TGCN) heterojunction. We have overviewed various synthetic routes for TGCN heterojunction construction and principles for construction of Type II and Z scheme TGCN heterojunctions. Different morphology based TGCN heterostructures such as mesoporous, core-shell, point-to-face (0D/2D), line-to-face (1D/2D) and face to face (2D/2D) architectures were systematically discussed. The enhanced photocatalytic activity of morphology based TGCN heterojunctions with respect to H 2 generation and environmental remediation in terms of NO oxidation, CO 2 conversion, Cr (VI) reduction, dye degradation, organics removal and antibiotics decontamination are thoroughly reviewed. Photoelectrochemical water oxidation over TGCN electrode was succinctly described. Mechanism of pollutant degradation was highlighted by the demonstration of radical trapping experiments, electron spin resonance spectroscopy (ESR) and electron paramagnetic resonance spectroscopy (EPR). The stability of TGCN heterojunctions was also illustrated. Limitations and challenges of TGCN heterojunction photocatlytic system were briefly depicted in this review. The future perspectives for commercialisation of this photocatalytic system in production of H 2 energy and degradation of pollutants were presented.
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Acharya R., Parida K. A review on TiO2/g-C3N4 visible-light- responsive photocatalysts for sustainable energy generation and environmental remediation // Journal of Environmental Chemical Engineering. 2020. Vol. 8. No. 4. p. 103896.
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Acharya R., Parida K. A review on TiO2/g-C3N4 visible-light- responsive photocatalysts for sustainable energy generation and environmental remediation // Journal of Environmental Chemical Engineering. 2020. Vol. 8. No. 4. p. 103896.
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TY - JOUR
DO - 10.1016/j.jece.2020.103896
UR - https://doi.org/10.1016/j.jece.2020.103896
TI - A review on TiO2/g-C3N4 visible-light- responsive photocatalysts for sustainable energy generation and environmental remediation
T2 - Journal of Environmental Chemical Engineering
AU - Acharya, Raghunath
AU - Parida, K.M
PY - 2020
DA - 2020/08/01 00:00:00
PB - Elsevier
SP - 103896
IS - 4
VL - 8
SN - 2213-3437
ER -
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@article{2020_Acharya,
author = {Raghunath Acharya and K.M Parida},
title = {A review on TiO2/g-C3N4 visible-light- responsive photocatalysts for sustainable energy generation and environmental remediation},
journal = {Journal of Environmental Chemical Engineering},
year = {2020},
volume = {8},
publisher = {Elsevier},
month = {aug},
url = {https://doi.org/10.1016/j.jece.2020.103896},
number = {4},
pages = {103896},
doi = {10.1016/j.jece.2020.103896}
}
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Acharya, Raghunath, and K.M Parida. “A review on TiO2/g-C3N4 visible-light- responsive photocatalysts for sustainable energy generation and environmental remediation.” Journal of Environmental Chemical Engineering, vol. 8, no. 4, Aug. 2020, p. 103896. https://doi.org/10.1016/j.jece.2020.103896.