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A novel TiO2/graphite felt photoanode assisted electro-Fenton catalytic membrane process for sequential degradation of antibiotic florfenicol and elimination of its antibacterial activity
Jiang, Wen-Li; Ding, Yang-Cheng; Haider, Muhammad Rizwan; Han, Jing-Long; Liang, Bin; Xia, Xue; Yang, Li-Ming; Wang, Hong-cheng; Peng, Yong-Zhen; Wang, Ai-Jie
2020-07-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume391Pages:1-18
AbstractAntibiotics, especially halogenated antibiotics, which account for nearly 40% of the total antibiotics in China, pose great environmental risks; however, the superior stability of C-F bond and low concentrations hinder their degradation, indicating the need for developing of highly efficient treatment technologies. There is an additional concern that some degradation products could be as active/toxic as or even more than their parent compound. The stable C-F bond can be relative easily cleaved by UV light irradiation, which could come from sunlight. Herein, a novel UV-driven electro-Fenton catalytic membrane (UV-EFCM) filtration system that favors resistance elimination and efficient degradation of low-concentration antibiotics is proposed for the first time. The photoelectrochemical/electro-Fenton (PEC/EF) coupling reaction is synchronously conducted in a sequential filtration system. Almost complete degradation and high mineralization (78.4 +/- 9.1%) of florfenicol were achieved at a concentration of as low as 14 mu M with the hydraulic retention time of 0.98 h during the UV-EFCM filtration system. Complete elimination of its antibacterial activity, and significant defluorination improvement (56 +/- 3.6%) compared to electro-Fenton filtration process (11 +/- 5.3%) were achieved due to the prior cleavage of the stable C-F bond with antibiotic potency under UV light pretreatment. This study thus proposes a novel UV-EFCM filtration system, which couples PEC and EF with a potential to tackle the environmental problems associated with antibiotic pollution.
Department中国科学院环境生物技术重点实验室
KeywordPhotoelectrocatalytic oxidation TiO2/graphite felt photoanode Electro-Fenton catalytic membrane Low concentration antibiotic Antibacterial activity elimination
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/45128
Collection中国科学院环境生物技术重点实验室
Recommended Citation
GB/T 7714
Jiang, Wen-Li,Ding, Yang-Cheng,Haider, Muhammad Rizwan,et al. A novel TiO2/graphite felt photoanode assisted electro-Fenton catalytic membrane process for sequential degradation of antibiotic florfenicol and elimination of its antibacterial activity[J]. CHEMICAL ENGINEERING JOURNAL,2020,391:1-18.
APA Jiang, Wen-Li.,Ding, Yang-Cheng.,Haider, Muhammad Rizwan.,Han, Jing-Long.,Liang, Bin.,...&Wang, Ai-Jie.(2020).A novel TiO2/graphite felt photoanode assisted electro-Fenton catalytic membrane process for sequential degradation of antibiotic florfenicol and elimination of its antibacterial activity.CHEMICAL ENGINEERING JOURNAL,391,1-18.
MLA Jiang, Wen-Li,et al."A novel TiO2/graphite felt photoanode assisted electro-Fenton catalytic membrane process for sequential degradation of antibiotic florfenicol and elimination of its antibacterial activity".CHEMICAL ENGINEERING JOURNAL 391(2020):1-18.
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