Significantly enhanced activation of peroxymonosulfate by a graphene-supported BiFeO3 composites for highly efficient degradation of tetracycline hydrochloride

被引：3
作者：
Ma, Jingwen [1 ]
Xing, Hongjie [1 ]
Zhang, Jingji [1 ]
Zong, Quan [1 ]
Du, Huiwei [1 ]
Chen, Junfu [1 ]
Wang, Jiangying [1 ]
机构：
[1] China Jiliang Univ, Coll Mat & Chem, Hangzhou 310018, Peoples R China
来源：
SOLID STATE SCIENCES | 2023年 / 139卷
关键词：
Graphene; Ultrasound assisted activation; Tetracycline; Peroxymonosulfate; BiFeO3; VISIBLE-LIGHT; OXIDE; OXIDATION; PHOTOCATALYSIS; PHARMACEUTICALS; NANOCOMPOSITE; ADSORPTION; REMOVAL; WATER;
D O I：
10.1016/j.solidstatesciences.2023.107163
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
To enhance active site of BiFeO3, graphene is employed to support BiFeO3 for promoting degradation of tetracycline. Herein, graphene-supported BiFeO3 composites are prepared via a facile two-step hydrothermal process and their ultrasound assisted activation of peroxymonosulfate is investigated. Benefiting from graphene loading, the specific surface area of composite with 2% graphene is about twice that of pure BiFeO3, leading to a high Fe2+ level. The high Fe2+ level promotes ultrasound assisted activation of peroxymonosulfate for effectively degrading tetracycline hydrochloride. In particular, the removal rate reaches up to similar to 100% after 6 min reaction under 50 W ultrasonic radiation. The composite catalyst is stable and recyclable, which can be applied in practical wastewater treatment.
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页数：6
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