Localized photo-Fenton reaction boosted by spontaneous generation of H2O2 from thin water membrane

被引：5

作者：

Li, Juan ^{[1
]}

Xia, Yu ^{[2
]}

Li, Jingxing ^{[1
]}

Long, Kaixiang ^{[1
]}

Chen, Fengjie ^{[2
]}

Feng, Min ^{[1
]}

Guo, ShiShang ^{[1
]}

Chen, Bolei ^{[2
]}

机构：

[1] Wuhan Univ, Minist Educ, Sch Phys & Technol, Key Lab Artificial Micro Nanostruct, Wuhan 430072, Peoples R China

[2] Jianghan Univ, Sch Environm & Hlth, Hubei Key Lab Environm & Hlth Effects Persistent T, Wuhan 430056, Peoples R China

来源：

JOURNAL OF WATER PROCESS ENGINEERING | 2023年 / 52卷

基金：

中国国家自然科学基金;

关键词：

Photo-Fenton reaction; Flowing microreactor; Water-solid interface; Contaminants degradation; ADVANCED OXIDATION PROCESSES; DEGRADATION;

D O I：

10.1016/j.jwpe.2023.103521

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Fenton AOPs in microreactors offer many significant advantages over the use of conventional reactors for water purification because they enable the more efficient generation of hydroxyl radicals. However, it is still challenging to apply the Fenton AOPs in microreactors for real applications due to their low water throughput and complex device design for H2O2 dosing. Here, we reported a porous aqueous thin membrane Fenton reactor supported by the Fe2O3 modified non-woven. H2O2 was generated by the contact electrification between water and non-woven, and further enhanced by the introduction of light irradiation and heat. The source water flowed through the non-woven, and thus removed the contained pollutants continuously at the water-solid interface. Additionally, the overall size of the device and its tilt angle were also discussed to optimize the membrane reactor purification ability, ensuring a significant treatment flux in the flow reactor while maximizing the pollutant degradation efficiency. 76 % of degradation efficiency and 4050 L/m(3).h of throughput were achieved based on our porous aqueous membrane Fenton reactor. Our work may offer valuable insight for the future development of high-throughput aqueous membrane reactors for environmental purposes.

引用

页数：8

共 26 条

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