Reactive, Self-Cleaning Ultrafiltration Membrane Functionalized with Iron Oxychloride Nanocatalysts

Environmental Science & Technology
Meng SunMenachem Elimelech

Abstract

Self-cleaning, antifouling ultrafiltration membranes are critically needed to mitigate organic fouling in water and wastewater treatment. In this study, we fabricated a novel polyvinylidene fluoride (PVDF) composite ultrafiltration membrane coated with FeOCl nanocatalysts (FeOCl/PVDF) via a facile, scalable thermal-treatment method, for the synergetic separation and degradation of organic pollutants. The structure, composition, and morphology of the FeOCl/PVDF membrane were extensively characterized. Results showed that the as-prepared FeOCl/PVDF membrane was uniformly covered with FeOCl nanoparticles with an average diameter of 1-5 nm, which greatly enhanced membrane hydrophilicity. The catalytic self-cleaning and antifouling properties of the FeOCl/PVDF membrane were evaluated in the presence of H2O2 at neutral pH. Using a facile H2O2 cleaning process, we showed that the FeOCl/PVDF membrane can achieve an excellent water flux recovery rate of ∼100%, following organic fouling with a model organic foulant (bovine serum albumin). Moreover, the in situ catalytic production of active hydroxyl radicals by the FeOCl/PVDF membrane was elucidated by electron spin resonance (ESR) and UV analysis. The catalytic performance of the FeOCl/...Continue Reading

References

Apr 29, 2004·Environmental Science & Technology·Tsutomu ShimotoriWilliam A Arnold
Sep 5, 2009·Journal of Hazardous Materials·Rahul A DamodarHui-Hsiang Chou
Jun 30, 2011·Environmental Science & Technology·Wenjuan ChenJiazhen Liu
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Mar 27, 2015·Chemical Society Reviews·François PerreaultMenachem Elimelech
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Aug 16, 2016·ACS Applied Materials & Interfaces·Kyoung Hoon ChuYeomin Yoon
Oct 7, 2016·ACS Applied Materials & Interfaces·John J KeatingGeorges Belfort
Jan 18, 2017·Environmental Science & Technology·Caihong LiuMenachem Elimelech
Mar 31, 2017·Environmental Science & Technology·Xiaojing HouLizhi Zhang
Apr 14, 2017·Environmental Science & Technology·Shunlong PanLianjun Wang

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Citations

Jul 1, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Sara ArabiValetta Saldanha
Feb 26, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Jian ZhangShaojie Liu
Sep 19, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Weihang OuyangJinkai Xue
Dec 3, 2020·Journal of Hazardous Materials·Rong HuXiang Qi
Dec 19, 2020·Environmental Science & Technology·Jia XieJiansheng Li
Jun 22, 2021·Environmental Science & Technology·Shuo ZhangJae-Hong Kim
Jul 18, 2021·Journal of Colloid and Interface Science·Rengyu YueMd Saifur Rahaman
Aug 14, 2021·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Tiancheng HunLi Sun
Jan 31, 2019·Environmental Science & Technology·Jinming LuoMenachem Elimelech
May 2, 2020·Environmental Science & Technology·Xiaoxiong WangMenachem Elimelech
Nov 21, 2020·Environmental Science & Technology·Chiheng ChuJae-Hong Kim
Sep 22, 2021·Environmental Science & Technology·Yufan ChenT David Waite

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