Piezoelectric effect enhanced photocatalysis in environmental remediation: State-of-the-art techniques and future scenarios

被引：77

作者：

Jiang, Zhenying ^{[1
]}

Tan, Xianjun ^{[1
]}

Huang, Yuxiong ^{[1
]}

机构：

[1] Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch SIGS, Tsinghua Berkeley Shenzhen Inst TBSI, Shenzhen 518055, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2022年 / 806卷

基金：

中国国家自然科学基金;

关键词：

Piezoelectric effect; Photocatalysis; Internal electric field; Advanced oxidation process; Wastewater treatment; PIEZOCATALYTIC DEGRADATION; MECHANICAL ENERGY; WATER; NANOSTRUCTURES; DISINFECTION; POLLUTANTS; NANOWIRES; DRIVEN; PERFORMANCE; NANOSHEETS;

D O I：

10.1016/j.scitotenv.2021.150924

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Photocatalysis has been widely used as an advanced oxidation process to control pollutants effectively. However, environmental photocatalysis' decontamination efficiency is restricted to the photogenerated electron-hole pairs' rapid recombination. Recently, emerging investigations have been directed to generate internal electric field by piezoelectric effect to enhance the separation efficiency of photogenerated charge carriers for better photocatalytic performance; however, there are still huge knowledge gaps on the rational application of piezophotocatalysis in environmental remediation and disinfection. Thus, we have conducted a comprehensive review to better understand the physicochemical properties of piezoelectric materials (non-centrosymmetric crystal structures, piezoelectric coefficient, Young's modulus, and etc.) and current study states. We also elucidated the strategy of piezo-photo catalysis system constructions (mono-component, core-shell structure, and etc.) and underlying mechanisms of enhanced remediation performance. Addressing the current challenges and future scenarios (degradation of organic pollutants, disinfection, and etc.), the present review would shed light on the advanced wastewater treatment development towards sustainable control of emerging containments. (c) 2021 Elsevier B.V. All rights reserved.

引用

页数：12

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