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Morphology-tunable WMoO nanowire catalysts for the extremely efficient elimination of tetracycline: kinetics, mechanisms and intermediates
Hu, Yi1,2; Chen, Ke2,3; Li, Yu-Lian1,2; He, Jun-Yong1,2; Zhang, Kai-Sheng1; Liu, Tao1,2; Xu, Wei4; Huang, Xing-Jiu1; Kong, Ling-Tao1; Liu, Jin-Huai1
2019-01-21
Source PublicationNANOSCALE
ISSN2040-3364
Corresponding AuthorKong, Ling-Tao(ltkong@iim.ac.cn)
AbstractThe 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.
DOI10.1039/c8nr08162j
WOS KeywordHETEROGENEOUS ELECTRO-FENTON ; PHOTO-FENTON ; SIMULTANEOUS ADSORPTION ; ORGANIC POLLUTANTS ; HYDROGEN-PEROXIDE ; WASTE-WATER ; DEGRADATION ; REMOVAL ; OXIDATION ; CO
Indexed BySCI
Language英语
Funding ProjectNatural 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]
Funding OrganizationNatural 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
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000460162900024
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/42211
Collection中科院固体物理研究所
Corresponding AuthorKong, Ling-Tao
Affiliation1.Chinese Acad Sci, Inst Intelligent Machines, Nanomat & Environm Detect Lab, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Chem, Hefei 230026, 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
Recommended Citation
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.
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