期刊论文详细信息
Environmental Science and Ecotechnology
Carbamazepine degradation by visible-light-driven photocatalyst Ag3PO4/GO: Mechanism and pathway
Feifei Wang1  Hongjie Wang1  Zilong Zhao2  Cesar Nieto-Delgado2  Feng Wang3  Guanhan Chen3  Wenyi Dong3 
[1] Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen, 518055, PR China;State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China;School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen, 518055, PR China;
关键词: Carbamazepine;    Ag3PO4/GO;    Visible light;    Photocatalysis;   
DOI  :  
来源: DOAJ
【 摘 要 】

Carbamazepine (CBZ), as one of the most frequently detected pharmaceuticals, is of great concern due to its potential impact on the ecosystem and human health. This study provides an effective approach to remove CBZ by using photocatalyst silver phosphate combined with graphene oxide (Ag3PO4/GO) under visible irradiation. The morphology, composition, and optical properties of Ag3PO4/GO were characterized employing SEM, XRD, and DRS. Graphene oxide could improve the visible-light utilization and promote electron's charge to enhance the photocatalytic performance of Ag3PO4/GO. With the optimal reaction condition of 5.86 mW/cm2 light intensity, 15–25 °C temperature, 5–7 pH, and 0.5 mg/L catalytic dosages, 5 mg/L CBZ could be completely degraded in 30 min, and the apparent rate constant could reach 0.12 min−1. Additionally, the radical trapping experiments indicated •OH and O2ˉ• were the main reactive oxygen species employed to eliminate CBZ. The decay pathways of CBZ had been proposed accordingly, and the main product was the low-molecular products.

【 授权许可】

Unknown   

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