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One-pot synthesis of magnetic iron oxide nanoparticle-multiwalled carbon nanotube composites for enhanced removal of Cr(VI) from aqueous solution

文献类型：期刊论文

作者Lu, Wenhui1,2; Li, Jinhua1; Sheng, Yanqing1; Zhang, Xinshen2; You, Jinmao3; Chen, Lingxin1,3; Li, Jinhua(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China); Chen, Lingxin(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China)
刊名JOURNAL OF COLLOID AND INTERFACE SCIENCE
出版日期2017-11-01
卷号505页码:1134-1146
关键词Cr(Vi) Multiwalled Carbon Nanotubes Nanocomposites Magnetic Separation Adsorption Removal
ISSN号0021-9797
DOI10.1016/j.jcis.2017.07.013
产权排序第1完成单位
文献子类Article
英文摘要Magnetic nanoparticle-multiwalled carbon nanotubes composites (MNP/IVIWCNTs) were prepared using 1,6-hexanediamine functionalized Fe3O4 nanoparticles (MNP) linked to carboxylic MWCNT5 by facile one-pot solvothermal synthesis for highly efficient removal of Cr(VI) from aqueous solution. The easily obtained magnetic nanocomposites were systematically characterized, and several major factors affecting the adsorption based removal were investigated, including solution pH, adsorbent dosage, temperature and contact time. The removal efficiency was highly dependent on solution pH; low pH facilitated removal with the maximum efficiency at pH 2.0. The adsorption isotherm was well fitted with the Langmuir isotherm model and the adsorption capacity increased with the temperature increasing. The adsorption kinetic data could be well described by the pseudo-second-order and the intraparticle diffusion models, indicating that the intraparticle diffusion was not the only rate-limiting step. The MNP/MWCNT5 displayed excellent selectivity and high anti interference ability toward Cr(VI) when confronted with commonly coexisting ions. By using an external magnetic field, the exhausted MNP/MWCNT5 could be readily separated from the solution after adsorption of Cr(VI) and well regenerated, and could keep about 80% removal efficiency in the fifth adsorption desorption cycle. The simple, rapid and reliable MNP/MWCNT-based method proved to be a cost-effective, convenient and potentially applicable way to targeted pollutant removal and wastewater treatment. (C) 2017 Elsevier Inc. All rights reserved.
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WOS关键词REDUCED GRAPHENE OXIDE ; HEAVY-METAL IONS ; HEXAVALENT CHROMIUM ; WASTE-WATER ; CYCLODEXTRIN-CHITOSAN ; EFFECTIVE ADSORPTION ; FE3O4 NANOPARTICLES ; REDUCTION ; ACID ; NANOCOMPOSITES
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000410464100121
资助机构National Defense Science and Technology Innovation Project of Chinese Academy of Sciences(CXJJ-16M254) ; National Natural Science Foundation of China(21477160) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDA11020702)
源URL[http://ir.yic.ac.cn/handle/133337/23439]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Li, Jinhua; Chen, Lingxin; Li, Jinhua(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China); Chen, Lingxin(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China)
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
2.Sichuan Univ, Natl Engn Lab Clean Technol Leather Manufacture, Chengdu 610065, Sichuan, Peoples R China
3.Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Wenhui,Li, Jinhua,Sheng, Yanqing,et al. One-pot synthesis of magnetic iron oxide nanoparticle-multiwalled carbon nanotube composites for enhanced removal of Cr(VI) from aqueous solution[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,505:1134-1146.
APA Lu, Wenhui.,Li, Jinhua.,Sheng, Yanqing.,Zhang, Xinshen.,You, Jinmao.,...&Chen, Lingxin.(2017).One-pot synthesis of magnetic iron oxide nanoparticle-multiwalled carbon nanotube composites for enhanced removal of Cr(VI) from aqueous solution.JOURNAL OF COLLOID AND INTERFACE SCIENCE,505,1134-1146.
MLA Lu, Wenhui,et al."One-pot synthesis of magnetic iron oxide nanoparticle-multiwalled carbon nanotube composites for enhanced removal of Cr(VI) from aqueous solution".JOURNAL OF COLLOID AND INTERFACE SCIENCE 505(2017):1134-1146.

入库方式： OAI收割

来源：烟台海岸带研究所

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