化工进展2024，Vol.43Issue(8)：4587-4600,14.DOI:10.16085/j.issn.1000-6613.2023-1013
基于紫外线的高级氧化或高级还原技术降解水中全氟或多氟烷基化合物
Degradation of per-and polyfluoroalkyl substances in water by UV-based advanced oxidation or advanced reduction processes
摘要
Abstract
Per-and polyfluoroalkyl substances(PFASs)are a class of persistent organic pollutants that exhibit high resistance to degradation,bioaccumulation,and potential toxicity.They are widely present in various environmental media,and the aqueous environment is one of the most significant fates for PFASs.However,conventional water treatment technologies struggle to remove PFASs.In recent years,advanced oxidation processes(AOPs)or advanced reduction processes(ARPs)based on ultraviolet(UV)light have shown great potential and promising prospects for the removal of PFASs.According to the latest research on the degradation of PFASs by direct UV photodegradation,UV-AOPs and UV-ARPs,this article focused on the degradation mechanism,degradation efficiency and influencing factors of different reaction systems.Among them,the degradation mechanism included active species generation mechanism and reaction mechanism;the degradation efficiency included degradation rate and defluorination rate;and the influencing factors included light wavelength,pH,dissolved oxygen,inorganic ions and humic acid.Finally,the difficulties to be overcome were proposed when UV-AOPs or UV-ARPs were applied to the removal of PFASs in real water bodies,aiming to provide thinking for its future development.关键词
全氟或多氟烷基化合物/光化学/高级氧化技术/自由基/高级还原技术/降解率/脱氟率Key words
per-and polyfluoroalkyl substances/photochemistry/advanced oxidation processes/radical/advanced reduction processes/degradation rate/defluorination rate分类
机械制造引用本文复制引用
张茜,李皓芯,张天阳,李子富,孙文俊,敖秀玮..基于紫外线的高级氧化或高级还原技术降解水中全氟或多氟烷基化合物[J].化工进展,2024,43(8):4587-4600,14.基金项目
国家自然科学基金(52270020,52261145693) （52270020,52261145693）
中央高校基本科研业务费项目(06500211,00007782). （06500211,00007782）
