Self-Regulating Solar Steam Generators Enable Volatile Organic Compound Removal through In Situ H2O2 Generation

被引：42

作者：

Zhou, Shuai ^{[1
]}

He, Ruihua ^{[2
]}

Pei, Jianchuan ^{[3
]}

Liu, Weiping ^{[1
]}

Huang, Zhaohong ^{[4
]}

Liu, Xiaogang ^{[2
]}

Wang, Juan ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Environm Hlth, Coll Environm & Resource Sci, MOE Key Lab Environm Remediat & Ecosyst Hlth, Hangzhou 310058, Peoples R China

[2] Natl Univ Singapore, Dept Chem, Singapore 117549, Singapore

[3] Zhejiang A&F Univ, Coll Environm & Resources, Hangzhou 311300, Peoples R China

[4] Singapore Inst Mfg Technol, Singapore 138634, Singapore

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2022年 / 56卷 / 14期

基金：

中国国家自然科学基金;

关键词：

interfacial water purification; photocatalysis; in situ generation of H2O2; Fenton-like reaction; volatile organic compounds; CLEAN WATER PRODUCTION; PHOTOCATALYTIC DEGRADATION; HYDROXYL RADICALS; EVAPORATION; OXIDE; AG;

D O I：

10.1021/acs.est.2c02067

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Interfacial solar steam generation for clean water production suffers from volatile organic compound (VOC) contamination during solar-to-steam conversion. Here, we present a solar steam generator based on the integration of melamine foam (MF), polydopamine (PDA), and Ag/AgCl particles. Together with the high photothermal conversion efficiency (ca. 87.8%, 1 kW/m(2)) achieved by the PDA thin film, the Ag/AgCl particles can efficiently activate the localized generation of H2O2 and center dotOH in situ, thus degrading the VOCs during the rapid vapor generation. The generation of H2O2 and center dotOH in situ also facilitates the creation of a buffer zone containing H2O2 and center dotOH for the rapid removal of organic pollutants in the surrounding water attracted to the solar vapor generator, demonstrating a self-cleaning steam generator toward various volatile compounds such as phenol, aniline, 2,4-dichlorophenol, and N,N-dimethylformamide in a wide range of concentrations.

引用

页码：10474 / 10482

页数：9

共 45 条

[21] ELECTRON-SPIN RESONANCE AND PULSE RADIOLYSIS STUDIES OF REACTIONS OF OH AND O-RADICALS WITH AROMATIC AND OLEFINIC COMPOUNDS [J].