Prussian blue/PVDF catalytic membrane with exceptional and stable Fenton oxidation performance for organic pollutants removal

被引：136

作者：

Lin, Haibo ^{[1
]}

Fang, Qile ^{[1
,2
]}

Wang, Wen ^{[1
]}

Li, Guiliang ^{[1
,2
]}

Guan, Jianmin ^{[1
]}

Shen, Yi ^{[3
]}

Ye, Jianrong ^{[4
]}

Liu, Fu ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Marine Mat & Protect Technol, Key Lab Marine Mat & Related Technol, 1219 Zhongguan West Rd, Ningbo 315201, Peoples R China

[2] Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China

[3] Zhejiang Univ Technol, Key Lab Microbial Technol Ind Pollut Control Zhej, Coll Environm, Hangzhou 310032, Peoples R China

[4] Ningbo Shuiyi Membrane Sci & Technol Dev Co Ltd, Ningbo, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2020年 / 273卷

基金：

中国国家自然科学基金;

关键词：

Catalytic membrane; Prussian blue; Instantaneous degradation; Long-term stability; EMERGING OPPORTUNITIES; BLUE; ADSORPTION; FE;

D O I：

10.1016/j.apcatb.2020.119047

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Catalytic membranes as heterogeneous advanced oxidation microreactors are appealing for persistent organic pollutants (Pops) treatment. Constructing a robust catalytic membrane with highly active sites for instantaneous and standing mineralization of flowing Pops are challenging in its practical application. Herein, we enable in-situ growth and firm enchasing of Prussian blue (PB) micro-crystals in the micro-clusters of Polyvinylidene fluoride (PVDF) membrane, where active sites are fully exposed for oxidant reagent and target contaminants. The designed PB@PVDF catalytic membrane demonstrates exceptional efficiency for instantaneous degradation of recalcitrant organic molecules e.g. bisphenol A, methylene blue, rhodamine B as well as humic acid. The membrane maintains high removal efficiency above 99% for MB with a constant flux of 300 Lm(-2) h(-1) during a long-term (24 h) cross-flow test. Both the enrichment of radials and pollutants in confined tortuous micro-pores and prompt flowing away of degraded products lead to the superior catalytic activity of heterogeneous Fenton reactors.

引用

页数：9

共 32 条

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