Morphology-tunable WMoO nanowire catalysts for the extremely efficient elimination of tetracycline: kinetics, mechanisms and intermediates

doi:10.1039/c8nr08162j

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院固体物理研究所

	Morphology-tunable WMoO nanowire catalysts for the extremely efficient elimination of tetracycline: kinetics, mechanisms and intermediates
	Hu, Yi 1,2; Chen, Ke 1,3; Li, Yu-Lian 1,2; He, Jun-Yong 1,2; Zhang, Kai-Sheng 2; Liu, Tao 1,2; Xu, Wei 4; Huang, Xing-Jiu 2; Kong, Ling-Tao 2; Liu, Jin-Huai 2
刊名	NANOSCALE
	2019-01-21
卷号	11 期号:3 页码:1047-1057
ISSN号	2040-3364
DOI	10.1039/c8nr08162j
通讯作者	Kong, Ling-Tao(ltkong@iim.ac.cn)
英文摘要	The presence of antibiotics in aquatic environments has attracted global concern. The Fenton system is one of the most popular methods for eliminating antibiotics in aquatic environments, but the existing Fenton system is limited due to the potential for secondary pollution, and the narrow pH range (approximate to 3-5). In this study, we report that the bottlenecks for high-strength tetracycline (TC) wastewater treatment under neutral conditions can be tackled well by a class of mixed-valence W/Mo containing oxides (WMoO-x) with tunable morphologies. Triethanolamine was selected as a structure-directing agent to control the morphologies of the catalysts going from ultrathin nanowires (UTNWs) to wire-tangled nanoballs (WTNBs). As a proof of concept, the most efficient catalyst in the batch samples, WMoO-1 ultrathin nanowires, was employed as a model material for TC degradation, in which the coordinatively unsaturated metal atoms with oxygen defects serve as the sites for TC chemisorption and electron transfer. As a result, 91.75% of TC was degraded in 60 min for the initial TC concentration of 400 M. Furthermore, LC-MS analysis confirmed that the TC could be degraded to nontoxic by-products without benzene rings, and finally mineralized to CO2 and H2O. ICP-MS and cycle experiments showed the good stability and reusability of WMoO-1 UTNWs in the Fenton-like system. The findings of this work provide fresh insights into the design of nanoscale catalyst morphology and reaffirm the versatility of doping in tuning catalyst activity, extending the range of the optimal pH values to neutral conditions. This is significant for the expansion of the heterogeneous Fenton-like family and its application in the field of water treatment.
资助项目	Natural Science Foundation of China[21277146] ; Natural Science Foundation of China[61605221] ; Natural Science Foundation of China[61273066] ; Natural Science Foundation of China[11205204] ; Natural Science Foundation of China[61374017] ; Key Technologies R & D Program Foundation of Anhui Province[1704a0802136] ; Chinese Academy of Sciences Key Deployment Project[KFZD-SW-309] ; Young Spark Project Foundation of CASHIPS[YZJJ201617] ; CASHIPS Director's Fund[YZJJ201701]
WOS关键词	HETEROGENEOUS ELECTRO-FENTON ; PHOTO-FENTON ; SIMULTANEOUS ADSORPTION ; ORGANIC POLLUTANTS ; HYDROGEN-PEROXIDE ; WASTE-WATER ; DEGRADATION ; REMOVAL ; OXIDATION ; CO
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000460162900024
资助机构	Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Technologies R & D Program Foundation of Anhui Province ; Key Technologies R & D Program Foundation of Anhui Province ; Key Technologies R & D Program Foundation of Anhui Province ; Key Technologies R & D Program Foundation of Anhui Province ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Key Technologies R & D Program Foundation of Anhui Province ; Key Technologies R & D Program Foundation of Anhui Province ; Key Technologies R & D Program Foundation of Anhui Province ; Key Technologies R & D Program Foundation of Anhui Province ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Chinese Academy of Sciences Key Deployment Project ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; Young Spark Project Foundation of CASHIPS ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund ; CASHIPS Director's Fund
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/42211]
专题	合肥物质科学研究院_中科院固体物理研究所
通讯作者	Kong, Ling-Tao
作者单位	1.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Intelligent Machines, Nanomat & Environm Detect Lab, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 4.Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Hu, Yi,Chen, Ke,Li, Yu-Lian,et al. Morphology-tunable WMoO nanowire catalysts for the extremely efficient elimination of tetracycline: kinetics, mechanisms and intermediates[J]. NANOSCALE,2019,11(3):1047-1057.
APA	Hu, Yi.,Chen, Ke.,Li, Yu-Lian.,He, Jun-Yong.,Zhang, Kai-Sheng.,...&Liu, Jin-Huai.(2019).Morphology-tunable WMoO nanowire catalysts for the extremely efficient elimination of tetracycline: kinetics, mechanisms and intermediates.NANOSCALE,11(3),1047-1057.
MLA	Hu, Yi,et al."Morphology-tunable WMoO nanowire catalysts for the extremely efficient elimination of tetracycline: kinetics, mechanisms and intermediates".NANOSCALE 11.3(2019):1047-1057.