Science of the Total Environment, volume 767, pages 144896
Recent progress in g-C3N4, TiO2 and ZnO based photocatalysts for dye degradation: Strategies to improve photocatalytic activity
2
Department of Civil & Environmental Engineering, University of Nebraska-Lincoln, Peter Kiewit Institute, Omaha, NE 68182-0178, USA
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Publication type: Journal Article
Publication date: 2021-05-01
Journal:
Science of the Total Environment
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 9.8
ISSN: 00489697, 18791026
Environmental Chemistry
Environmental Engineering
Pollution
Waste Management and Disposal
Abstract
Water contamination by dyes is a matter of concern for human health and the environment. Various methods (membrane separation, coagulation and adsorption) have been explored to remove/degrade dyes. However, now the exploitation of semiconductor assisted materials using renewable solar energy has emerged as a potential candidate to resolve the issue. Although, single component photocatalysts (ZnO, TiO 2 , ZrO 2 ) were experimented, due to their low efficiency and stability due to the high recombination rate electron-hole pair and inefficient visible light absorption, composites of semiconductor materials are being used. Semiconductor heterojunction systems are developed by coupling two or more semiconductor components. The synergistic effect of their properties, such as adsorption and improved charge carrier migration, is observed to increase overall stability. This review covers recent progress in advanced nanocomposite materials based on g-C 3 N 4 , TiO 2 and ZnO used as photocatalysts with details of enhancing the photocatalytic properties by heterojunctions, crystallinity and doping. The conclusion at the end displays a summary, research gaps and future outlook. A holistic analysis of recent progress to demonstrate the efficient heterojunctions for photodegradation with optimal conditions, this review will be helpful for the development of efficient heterostructured systems for photodegradation. This review covers references from the year 2017–2020. • Mechanistic development in the charge carrier's movement for dye degradation • Graphitic carbon nitride (g-C 3 N 4 ) TiO 2, ZnO based photocatalysts • Improved photocatalysis using heterojunctions, crystal phase and facet, doping
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Nemiwal M., Zhang T., Kumar D. Recent progress in g-C3N4, TiO2 and ZnO based photocatalysts for dye degradation: Strategies to improve photocatalytic activity // Science of the Total Environment. 2021. Vol. 767. p. 144896.
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Nemiwal M., Zhang T., Kumar D. Recent progress in g-C3N4, TiO2 and ZnO based photocatalysts for dye degradation: Strategies to improve photocatalytic activity // Science of the Total Environment. 2021. Vol. 767. p. 144896.
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TY - JOUR
DO - 10.1016/j.scitotenv.2020.144896
UR - https://doi.org/10.1016/j.scitotenv.2020.144896
TI - Recent progress in g-C3N4, TiO2 and ZnO based photocatalysts for dye degradation: Strategies to improve photocatalytic activity
T2 - Science of the Total Environment
AU - Nemiwal, Meena
AU - Zhang, Tianxian
AU - Kumar, Dinesh
PY - 2021
DA - 2021/05/01 00:00:00
PB - Elsevier
SP - 144896
VL - 767
SN - 0048-9697
SN - 1879-1026
ER -
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@article{2021_Nemiwal,
author = {Meena Nemiwal and Tianxian Zhang and Dinesh Kumar},
title = {Recent progress in g-C3N4, TiO2 and ZnO based photocatalysts for dye degradation: Strategies to improve photocatalytic activity},
journal = {Science of the Total Environment},
year = {2021},
volume = {767},
publisher = {Elsevier},
month = {may},
url = {https://doi.org/10.1016/j.scitotenv.2020.144896},
pages = {144896},
doi = {10.1016/j.scitotenv.2020.144896}
}