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Plasma-Facilitated Synthesis of Amidoxime/Carbon Nanofiber Hybrids for Effective Enrichment of U-238(VI) and Am-241(III)
Sun, Yubing1,2; Lu, Songhua1; Wang, Xiangxue2; Xu, Chao3; Li, Jiaxing1; Chen, Changlun1; Chen, Jing3; Hayat, Tasawar5,6; Alsaedi, Ahmed5; Alharbi, Njud S.5; Wang, Xiangke2,4
2017-11-07
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume51Issue:21Pages:12274-12282
Abstract

Plasma- and chemical-grafted amidoxime/carbon nanofiber hybrids (p-AO/CNFs and c-AO/CNFs) were utilized to remove U-238(VI) and Am-241(III) from aqueous solutions, seawater, and groundwater. Characteristic results indicated more nitrogen containing groups in p-AO/CNFs compared to c-AO/CNFs. The maximum adsorption capacities of p-AO/CNFs at pH 3.5 and T = 293 K (588.24 mg of U-238(VI)/g and 40.79 mg of Am-241(III)/g from aqueous solutions, respectively) were significantly higher than those of c-AO/CNFs (263.18 and 22.77 mg/g for U-238(VI) and Am-241(III), respectively), which indicated that plasma-grafting was a highly effective, low-cost, and environmentally friendly method. Adsorption of U-238(VI) on AO/CNFs from aqueous solutions was significantly higher than that of U-238(VI) from seawater and groundwater; moreover, AO/CNFs displayed the highest effective selectivity for U-238(VI) compared to the other radionuclides. Adsorption of U-238(VI) onto AO/CNFs created inner-sphere complexes (e.g., U-C shells) as shown by X-ray absorption fine structure analysis, which was supported by surface complexation modeling. Three inner-sphere complexes gave excellent fits to pH-edge and isothermal adsorption of U-238(VI) on the AO/CNFs. These observations are crucial for the utilization of plasma-grafted, AO-based composites in the preconcentration and immobilization of lanthanides and actinides in environmental remediation.

DOI10.1021/acs.est.7b02745
WOS KeywordMULTIWALLED CARBON NANOTUBES ; GRAPHENE OXIDE NANOSHEETS ; ABSORPTION FINE-STRUCTURE ; MODELING TECHNIQUES ; AQUEOUS-SOLUTIONS ; URANIUM RECOVERY ; COMPETITIVE SORPTION ; MESOPOROUS CARBON ; BACILLUS-SUBTILIS ; ACTIVATED CARBON
Indexed BySCI
Language英语
Funding ProjectJiangsu Provincial Key laboratory of Radiation Medicine and Protection ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Research Fund Program of Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources[GZDX2017K002] ; National Natural Science Foundation of China[21577032] ; National Natural Science Foundation of China[2147713] ; National Natural Science Foundation of China[21607156] ; National Key Research and Development Program of China[2017YFA0207002] ; [TZ2016004]
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000414887200027
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:86[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/34753
Collection中科院等离子体物理研究所
Corresponding AuthorWang, Xiangke
Affiliation1.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Anhui, Peoples R China
2.North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China
3.Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Beijing 100084, Peoples R China
4.Soochow Univ, Sch Radiol & Interdisciplinary Sci, Collaborat Innovat Ctr Radiat Med, Jiangsu Higher Educ Inst, Suzhou 215123, Peoples R China
5.King Abdulaziz Univ, NAAM Res Grp, Jeddah 21589, Saudi Arabia
6.Quaid I Azam Univ, Dept Math, Islamabad 44000, Pakistan
Recommended Citation
GB/T 7714
Sun, Yubing,Lu, Songhua,Wang, Xiangxue,et al. Plasma-Facilitated Synthesis of Amidoxime/Carbon Nanofiber Hybrids for Effective Enrichment of U-238(VI) and Am-241(III)[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(21):12274-12282.
APA Sun, Yubing.,Lu, Songhua.,Wang, Xiangxue.,Xu, Chao.,Li, Jiaxing.,...&Wang, Xiangke.(2017).Plasma-Facilitated Synthesis of Amidoxime/Carbon Nanofiber Hybrids for Effective Enrichment of U-238(VI) and Am-241(III).ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(21),12274-12282.
MLA Sun, Yubing,et al."Plasma-Facilitated Synthesis of Amidoxime/Carbon Nanofiber Hybrids for Effective Enrichment of U-238(VI) and Am-241(III)".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.21(2017):12274-12282.
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