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Functionalized Fe3O4@C Nanospheres with Adjustable Structure for Efficient Hexavalent Chromium Removal
Zhou, Linglin1,3; Zhang, Guilong1,2; Tian, Jie3; Wang, Dongfang1,3; Cai, Dongqing1,2; Wu, Zhengyan1,2
2017-11-01
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume5Issue:11Pages:11042-11050
Abstract

Core-shell magnetic Fe3O4@C nanospheres functionalized with active chemical groups were synthesized via a one-step template-free solvothermal process and employed to remove hexavalent chromium (Cr(VI)) in aqueous media. The structure of Fe3O4@C nanoparticles could be effectively adjusted by the concentration of precursor. The Fe3O4 core possessed a high magnetism for the convenient separation of Fe3O4@C from aqueous solution, and high porosity and abundant functional groups (-OH, -COOH, and C=C) of carbon layer contributed to a superior performance on Cr(VI) removal. Therein, Cr(VI) ions could be efficiently adsorbed into the carbon layer and reduced to trivalent chromium (Cr(III)) mainly by C=C, and the resulting Cr(III) were chelated by the -COOH group. Noteworthy, the carbon layer thickness, pore size, and amount of chemical groups significantly increased with the increase of Fe3O4@C particle size resulting in a rising removal efficiency on Cr(VI). This study provides a promising approach for removing Cr(VI) and may have a huge application potential.

KeywordCore-shell nanospheres Adjustable structure Removal Hexavalent chromium Adsorption and reduction
DOI10.1021/acssuschemeng.7b02983
WOS KeywordAQUEOUS-SOLUTION ; CARBON NANOCOMPOSITES ; CR(VI) REMOVAL ; ADSORPTION ; WATER ; NANOPARTICLES ; CELLULOSE ; IONS ; ACID ; COMPOSITES
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[21407151] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2015385] ; Key Program of Chinese Academy of Sciences[KSZD-EW-Z-022-05] ; Science and Technology Service Programs of Chinese Academy of Sciences[KFJ-STS-ZDTP-002] ; Science and Technology Service Programs of Chinese Academy of Sciences[KFJ-SW-STS-143] ; Grant of the President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences[YZJJ201502]
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000414825900164
PublisherAMER CHEMICAL SOC
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Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/35694
Collection技术生物与农业工程研究所
Corresponding AuthorCai, Dongqing; Wu, Zhengyan
Affiliation1.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, 350 Shushanhu Rd, Hefei 230031, Anhui, Peoples R China
2.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab Environm Toxicol & Pollut Control Technol, 350 Shushanhu Rd, Hefei 230031, Anhui, Peoples R China
3.Univ Sci & Technol China, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Linglin,Zhang, Guilong,Tian, Jie,et al. Functionalized Fe3O4@C Nanospheres with Adjustable Structure for Efficient Hexavalent Chromium Removal[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(11):11042-11050.
APA Zhou, Linglin,Zhang, Guilong,Tian, Jie,Wang, Dongfang,Cai, Dongqing,&Wu, Zhengyan.(2017).Functionalized Fe3O4@C Nanospheres with Adjustable Structure for Efficient Hexavalent Chromium Removal.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(11),11042-11050.
MLA Zhou, Linglin,et al."Functionalized Fe3O4@C Nanospheres with Adjustable Structure for Efficient Hexavalent Chromium Removal".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.11(2017):11042-11050.
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