Deep Dehalogenation of Florfenicol Using Crystalline CoP Nanosheet Arrays on a Ti Plate via Direct Cathodic Reduction and Atomic H

	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 Publication	ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN	0013-936X
Volume	53 Issue:20 Pages:11932-11940
Abstract	Efficient 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
Identifier	https://ir.rcees.ac.cn/handle/311016/43349
Collection	中国科学院环境生物技术重点实验室
Affiliation	1.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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