Catalytic degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) by nano-Fe₂O₃ activated peroxymonosulfate: Influential factors and mechanism determination

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• 关键词：Peroxymonosulfate ; 2 ; 4-Dichlorophenoxyacetic acid ; Hematite ; Sulfate radical ; Photocatalysis
• 刊名：Chemosphere
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：169
• 期：Complete
• 页码：568-576
• 全文大小：2158 K
• 卷排序：169

文摘

Hematite nanoparticles (HNPs) were synthesized to activate peroxymonosulfate (PMS). The HNPs/PMS system could effectively degrade dichlorophenoxyacetic acid (2,4-D). The effects of Cl−, NO3−, and HPO42− were assessed on PMS/HNPs performance. The presence of UV improved performance of the PMS/HNPs system significantly. The results showed that sulfate radical is the major agent of 2,4-D degradation.