Study on the photocatalytic mechanism and detoxicity of gemfibrozil by a sunlight-driven TiO₂/carbon dots photocatalyst: The significant roles of reactive oxygen species

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• 作者：Ping Chen^a ; Fengliang Wang^a ; Zhi-Feng Chen^a ; Qianxin Zhang^a ; Yuehan Su^a ; Lingzhi Shen^a ; Kun Yao^a ; Yang Liu^b ; Zongwei Cai^c ; Wenying Lv^a ; Guoguang Liu^a ; ^{liugg615@163.com}
• 关键词：Gemfibrozil ; TiO2 ; Carbon dots ; Reactive oxygen species ; Detoxicity
• 刊名：Applied Catalysis B: Environmental
• 出版年：2017
• 出版时间：5 May 2017
• 年：2017
• 卷：204
• 期：Complete
• 页码：250-259
• 全文大小：2605 K
• 卷排序：204

文摘

A sunlight-driven TiO2/carbon dots photocatalyst was prepared. The active mechanism of the TiO2/carbon dots composites was deduced suggesting the participation of reactive species in the degradation of gemfibrozil. Frontier electron density calculations verified that OH addition, H abstraction and O2− attack routes were the major gemfibrozil degradation pathways. The TiO2/C-Dots photocatalytic technology could effectively reduce the toxicity of the treated solution and by-products of GEM.