A radical polymer membrane for simultaneous degradation of organic pollutants and water filtration.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 38315857.
- Also identified by DOI 10.1073/pnas.2315688121 and PMC identifier 10873639.
- Licence recorded as CC BY-NC-ND.
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Abstract
Integrating reactive radicals into membranes that resemble biological membranes has always been a pursuit for simultaneous organics degradation and water filtration. In this research, we discovered that a radical polymer (RP) that can directly trigger the oxidative degradation of sulfamethozaxole (SMX). Mechanistic studies by experiment and density functional theory simulations revealed that peroxyl radicals are the reactive species, and the radicals could be regenerated in the presence of O<sub>2</sub>. Furthermore, an interpenetrating RP network membrane consisting of polyvinyl alcohol and the RP was fabricated to demonstrate the simultaneous filtration of large molecules in the model wastewater stream and the degradation of ~ 85% of SMX with a steady permeation flux. This study offers valuable insights into the mechanism of RP-triggered advanced oxidation processes and provides an energy-efficient solution for the degradation of organic compounds and water filtration in wastewater treatment.