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Review
. 2021 Jul 12;11(7):1804.
doi: 10.3390/nano11071804.

Recent Advances of Photocatalytic Application in Water Treatment: A Review

Guangmin Ren  1 , Hongtao Han  1 , Yixuan Wang  1 , Sitong Liu  1 , Jianyong Zhao  1 , Xiangchao Meng  1 , Zizhen Li  1
Affiliations
Review

Recent Advances of Photocatalytic Application in Water Treatment: A Review

Guangmin Ren et al. Nanomaterials (Basel). .

Abstract

Photocatalysis holds great promise as an efficient and sustainable oxidation technology for application in wastewater treatment. Rapid progress developing novel materials has propelled photocatalysis to the forefront of sustainable wastewater treatments. This review presents the latest progress on applications of photocatalytic wastewater treatment. Our focus is on strategies for improving performance. Challenges and outlooks in this promising field are also discussed. We hope this review will help researchers design low-cost and high-efficiency photocatalysts for water treatment.

Keywords: disinfection; heavy metal; photocatalysis; semiconductors; wastewater treatment.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Photocatalytic processes over a heterogeneous photocatalyst.
Figure 2
Figure 2
Mechanism of RCD-CTS photocatalyst under Vis-NIR light excitation [37]. Copyright, 2020 Elsevier Inc.
Figure 3
Figure 3
Schematic illustration of the ligand-to-metal charge transfer mechanism by chlorinated phenolic compounds in the Fe3O4 NPs system [43]. Copyright, 2020 Elsevier Inc.
Figure 4
Figure 4
Schematic of the electron-density-induced structure-performance relationship between phenolic molecules and NC-MIL-125-NH2 in adsorption-photocatalysis [47]. Copyright, 2020 Royal Society of Chemistry.
Figure 5
Figure 5
Schematic illustration of the reaction mechanism for reduction of Cr(VI) over 3D ZnIn2S4/CdS composite under visible light irradiation [54]. Copyright, 2018 Elsevier Inc.
Figure 6
Figure 6
Schematic illustration of the simultaneous elimination mechanism in 1FeCTi [59]. Copyright, 2019 Elsevier Inc.
Figure 7
Figure 7
Schematic illustration of proposed mechanism of bacterial inactivation by Fe2O3-AgBr [101]. Copyright, 2016 Elsevier Inc.
Figure 8
Figure 8
Schematic diagram of the flow-loop thin film slurry flat plate photoreactor [107]. Copyright, 2020 Elsevier Inc.
See this image and copyright information in PMC

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