title: Effects of Cu(II) and humic acid on atrazine photodegradation.
abstract: This work was designed to explore the characteristics of photodegradation of herbicides in the copper-polluted water body. The results showed that Cu(II) alone could induce a photo Fenton-like reaction to enhance the degradation of atrazine, in which hydroxyl radical (*OH) was a main active species. Humic acids restrained atrazine degradation, nevertheless, when introducing Cu(II), the photodegradation was accelerated, in which singlet oxygen (1O2) replaced *OH acting as the prevailing species. A feasible mechanism for the photochemical process was also proposed, which is helpful for better understanding the environmental photochemistry of atrazine in the copper-polluted water.
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, Department of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Sun
authors.forename: Hui
authors.initials: H
authors.lastname: Liu
authors.forename: Yaobin
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yazhi
authors.initials: Y
authors.lastname: Zhao
authors.forename: Xie
authors.initials: X
authors.lastname: Quan
mesh_terms: D001280:Atrazine / Q000737:chemistry* / Q000528:radiation effects*; D003300:Copper / Q000737:chemistry*; D004578:Electron Spin Resonance Spectroscopy; D006812:Humic Substances / Q000032:analysis*; D010100:Oxygen / Q000737:chemistry; D010782:Photolysis; D012996:Solutions; D013050:Spectrometry, Fluorescence
chemical_list: D006812:Humic Substances; D012996:Solutions; D003300:Copper; D001280:Atrazine; D010100:Oxygen