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Deep Dehalogenation of Florfenicol Using Crystalline CoP Nanosheet Arrays on a Ti Plate via Direct Cathodic Reduction and Atomic H
Liu, Huiling; Han, Jinglong; Yuan, Jili; Liu, Chengbin; Wang, Dong; Liu, Tian; Liu, Meijun; Luo, Jinming; Wang, Aijie; Crittenden, John C.
2019-10-15
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume53Issue:20Pages:11932-11940
AbstractEfficient elimination of antibacterial activity of halogenated antibiotics by dehalogenation pretreatment is desired for a biochemical treatment process. In this study, crystalline cobalt phosphide nanosheet arrays on a Ti plate (C-CoP/Ti) are fabricated by a simple electrodeposition and phosphorization process. The crystalline structure greatly promotes atomic hydrogen (H*) generation. Moreover, the nanosheet arrays can provide abundant active sites and accelerate electron transfer and mass transport. As a result, the dehalogenation rate of florfenicol (FLO, an emerging organic pollutant) on C-CoP/Ti is 11.1, 2.97, and 13.6 times higher than that on amorphous CoP/Ti, Pd/Ti, and bare Ti, respectively. The C-CoP/Ti electrode achieves 97.4% dehalogenation of FLO (20 mg L-1) within 30 min at -1.2 V (vs Ag/AgCl). Nearly 100% of CI and 20% of F are broken away within 120 min, showing the highest electrocatalytic defluorination efficiency reported so far. Both experimental results and theoretical calculations reveal that the dehalogenation of FLO on C-CoP/Ti is synergistically accomplished via direct reduction of electron transfer and indirect reduction of H*. This study develops a highly efficient non-noble metal electrode material for dehalogenation of halogenated organic compounds.
Department中国科学院环境生物技术重点实验室
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43349
Collection中国科学院环境生物技术重点实验室
Affiliation1.Hunan Univ, State Key Lab Chemobiosensing & Chemometr, Changsha 410082, Hunan, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
3.Georgia Inst Technol, Brook Byers Inst Sustainable Syst, 828 West Peachtree St, Atlanta, GA 30332 USA
Recommended Citation
GB/T 7714
Liu, Huiling,Han, Jinglong,Yuan, Jili,et al. Deep Dehalogenation of Florfenicol Using Crystalline CoP Nanosheet Arrays on a Ti Plate via Direct Cathodic Reduction and Atomic H[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(20):11932-11940.
APA Liu, Huiling.,Han, Jinglong.,Yuan, Jili.,Liu, Chengbin.,Wang, Dong.,...&Crittenden, John C..(2019).Deep Dehalogenation of Florfenicol Using Crystalline CoP Nanosheet Arrays on a Ti Plate via Direct Cathodic Reduction and Atomic H.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(20),11932-11940.
MLA Liu, Huiling,et al."Deep Dehalogenation of Florfenicol Using Crystalline CoP Nanosheet Arrays on a Ti Plate via Direct Cathodic Reduction and Atomic H".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.20(2019):11932-11940.
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