Impact of natural organic matter on the degradation of 2,4-dichlorophenoxy acetic acid in a fluidized bed photocatalytic reactor

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• 作者：Reza Rezaei ; Madjid Mohseni ; ^{madjid.mohseni@ubc.ca}
• 关键词：Photocatalytic oxidation ; pH effect ; 2 ; 4-D ; NOM ; Adsorption ; Hydroxyl radicals and positive holes
• 刊名：Chemical Engineering Journal
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：310
• 期：part_P2
• 页码：457-463
• 全文大小：781 K
• 卷排序：310

文摘

Effect of pH on photocatalytic oxidation mechanisms in the absence and presence of NOM was examined. NOM does not have any effect on 2,4-D adsorption on the photocatalyst surface. At low pH, NOM affects the process by scavenging positive holes on the photocatalyst surface. At high pH, NOM affects the photocatalytic oxidation primarily by scavenging hydroxyl radicals.