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Competitive sorption of As(V) and Cr(VI) on carbonaceous nanofibers

文献类型：期刊论文

作者Cheng, Wencai1,2; Ding, Congcong1,2; Wang, Xiangxue1,2; Wu, Zhenyu3; Sun, Yubing2,4,5; Yu, Shuhong3; Hayat, Tasawar6,7; Wang, Xiangke1,4,5,6
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2016-06-01
卷号293期号:无页码:311-318
关键词Carbonaceous Nanofibers Cr(Vi) As(v) Sorption Reduction
DOI10.1016/j.cej.2016.02.073
文献子类Article
英文摘要The competitive sorption of As(V) and Cr(VI) on the novel and uniform carbonaceous nanofibers (CNFs) was investigated in single/binary-metal systems. The presence of Cr(VI) showed a greater inhibitory effect on the sorption of As(V) in binary As-Cr system, especially at higher Cr(VI) concentrations. The maximum sorption capacities of Cr(VI) and As(V) on CNFs in single-metal systems at pH 5.0 and 303 K were calculated as 236 and 0.67 mmol/g, respectively, by Langmuir equation. XPS results demonstrated that only As(V) species was present at the CNFs surface, whereas both Cr(VI) and Cr(III) species existed on the CNFs surfaces, suggesting the partially reduction of Cr(VI) to Cr(III) by CNFs. According to the macroscopic and spectroscopic analysis, both inner-sphere and outer-sphere surface complexation contributed to the sorption process of Cr(VI), in contrast to the electrostatic outer-sphere sorption of As(V) on CNFs. The inner-sphere Cr complexes might arise from the covalent bonding between Cr(III) and oxygen containing functional groups of CNFs. The findings herein highlight the higher chemical affinity of CNFs for Cr(VI) relative to As(V), as a consequence of the redox reaction of the strongly toxic Cr(VI) with CNFs. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词GRAPHENE OXIDE NANOSHEETS ; MODELING TECHNIQUES ; METAL-IONS ; ADSORPTION ; ARSENATE ; REMOVAL ; RADIONUCLIDES ; BATCH ; WATER ; NANOPARTICLES
WOS研究方向Engineering
语种英语
WOS记录号WOS:000374602600033
资助机构National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91126020) ; 91126020) ; 91126020) ; 91126020) ; 91126020) ; 91126020) ; 91126020) ; 91126020) ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; National Natural Science Foundation of China(21225730 ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; Fundamental Research Funds for the Central Universities(JB2015001) ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; priority Academic program development of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 91326202 ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/21699]  
专题合肥物质科学研究院_中科院等离子体物理研究所
作者单位1.North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China
2.Chinese Acad Sci, Key Lab New Thin Film Solar Cells, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China
3.Univ Sci & Technol China, Dept Chem, Hefei Natl Lab Phys Sci Microscale, Div Nanomat & Chem, Hefei 230026, Anhui, Peoples R China
4.Soochow Univ, Collaborat Innovat Ctr Radiat Med, Jiangsu Higher Educ Inst, Suzhou 215123, Peoples R China
5.Soochow Univ, Sch Radiol & Interdisciplinary Sci, Suzhou 215123, Peoples R China
6.King Abdulaziz Univ, Fac Sci, NAAM Res Grp, Jeddah 21589, Saudi Arabia
7.Quaid I Azam Univ, Dept Math, Islamabad 44000, Pakistan
推荐引用方式
GB/T 7714		 Cheng, Wencai,Ding, Congcong,Wang, Xiangxue,et al. Competitive sorption of As(V) and Cr(VI) on carbonaceous nanofibers[J]. CHEMICAL ENGINEERING JOURNAL,2016,293(无):311-318.
APA Cheng, Wencai.,Ding, Congcong.,Wang, Xiangxue.,Wu, Zhenyu.,Sun, Yubing.,...&Wang, Xiangke.(2016).Competitive sorption of As(V) and Cr(VI) on carbonaceous nanofibers.CHEMICAL ENGINEERING JOURNAL,293(无),311-318.
MLA Cheng, Wencai,et al."Competitive sorption of As(V) and Cr(VI) on carbonaceous nanofibers".CHEMICAL ENGINEERING JOURNAL 293.无(2016):311-318.

入库方式： OAI收割

来源：合肥物质科学研究院

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