One-pot synthesis of magnetic iron oxide nanoparticle-multiwalled carbon nanotube composites for enhanced removal of Cr(VI) from aqueous solution
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)
2017-11-01
发表期刊JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
卷号505页码:1134-1146
产权排序第1完成单位
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.
关键词Cr(Vi) Multiwalled Carbon Nanotubes Nanocomposites Magnetic Separation Adsorption Removal
DOI10.1016/j.jcis.2017.07.013
项目资助者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)
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收录类别SCI
关键词[WOS]REDUCED GRAPHENE OXIDE ; HEAVY-METAL IONS ; HEXAVALENT CHROMIUM ; WASTE-WATER ; CYCLODEXTRIN-CHITOSAN ; EFFECTIVE ADSORPTION ; FE3O4 NANOPARTICLES ; REDUCTION ; ACID ; NANOCOMPOSITES
文章类型Article
语种英语
WOS研究方向Chemistry
WOS记录号WOS:000410464100121
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/23439
专题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
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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.
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