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Synthesis of a Multifunctional Graphene Oxide-Based Magnetic Nanocomposite for Efficient Removal of Cr(VI)
Wang, Dongfang1,3; Zhang, Guilong1,2; Zhou, Linglin1,3; Wang, Min1,3; Cai, Dongqing1,2; Wu, Zhengyan1,2
2017-07-18
发表期刊LANGMUIR
卷号33期号:28页码:7007-7014
摘要A novel magnetic nanocomposite was synthesized using graphene oxide (GO), polyethylenimine (PEI), and Fe3O4 to removal hexavalent chromium (Cr(VI)) from water and soil. Therein, GO was functionalized with plenty of -NH2 by the modification of PEI through an amidation reaction, and the resulting GO/PEI reacted with FeSO4 center dot 7H(2)O and NaBH4 to obtain RGO/PEI/Fe3O4 (the optimal one is designated as ORPF) through an oxidation- reduction reaction. ORPF could effectively adsorb Cr(VI) through electrostatic attraction, and the adsorbed Cr(VI) ions were partially reduced to trivalent chromium (Cr(III)) with low toxicity by RGO (pi electron). Afterward, the resulting ORPF-Cr could be conveniently removed from water with a magnet, achieving the maximum Cr(VI) removal capacity of 266.6 mg/g. Importantly, ORPF, once carried by sponge particles, could efficiently remove Cr(VI) from soil, and the resulting mixture could be facilely collected with a magnet on a filter net. Besides, the leaching experiment suggested that, when supported by filter paper, ORPF was able to decrease the number of leached Cr(VI) ions and meanwhile reduce them to Cr(III). This work provides a promising approach to remediate Cr(VI))-contaminated water and soil using a nanocomposite, Which has a huge number of application prospects.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者National Natural Science Foundation of China(21407151) ; National Natural Science Foundation of China(21407151) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences(2015385) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences(2015385) ; Key Program of the Chinese Academy of Sciences(KSZD-EW-Z-022-05) ; Key Program of the Chinese Academy of Sciences(KSZD-EW-Z-022-05) ; Science and Technology Service Programs of the Chinese Academy of Sciences(KFJ-STS-ZDTP-002 ; Science and Technology Service Programs of the Chinese Academy of Sciences(KFJ-STS-ZDTP-002 ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences(YZJJ201502) ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences(YZJJ201502) ; KFJ-SWSTS-143) ; KFJ-SWSTS-143) ; National Natural Science Foundation of China(21407151) ; National Natural Science Foundation of China(21407151) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences(2015385) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences(2015385) ; Key Program of the Chinese Academy of Sciences(KSZD-EW-Z-022-05) ; Key Program of the Chinese Academy of Sciences(KSZD-EW-Z-022-05) ; Science and Technology Service Programs of the Chinese Academy of Sciences(KFJ-STS-ZDTP-002 ; Science and Technology Service Programs of the Chinese Academy of Sciences(KFJ-STS-ZDTP-002 ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences(YZJJ201502) ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences(YZJJ201502) ; KFJ-SWSTS-143) ; KFJ-SWSTS-143)
DOI10.1021/acs.langmuir.7b01293
关键词[WOS]ZERO-VALENT IRON ; AQUEOUS-SOLUTIONS ; HEXAVALENT CHROMIUM ; FACILE SYNTHESIS ; WASTE-WATER ; REDUCTION ; FABRICATION ; ADSORPTION ; ADSORBENT ; ACTIVATION
收录类别SCI
语种英语
资助者National Natural Science Foundation of China(21407151) ; National Natural Science Foundation of China(21407151) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences(2015385) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences(2015385) ; Key Program of the Chinese Academy of Sciences(KSZD-EW-Z-022-05) ; Key Program of the Chinese Academy of Sciences(KSZD-EW-Z-022-05) ; Science and Technology Service Programs of the Chinese Academy of Sciences(KFJ-STS-ZDTP-002 ; Science and Technology Service Programs of the Chinese Academy of Sciences(KFJ-STS-ZDTP-002 ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences(YZJJ201502) ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences(YZJJ201502) ; KFJ-SWSTS-143) ; KFJ-SWSTS-143) ; National Natural Science Foundation of China(21407151) ; National Natural Science Foundation of China(21407151) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences(2015385) ; Youth Innovation Promotion Association of the Chinese Academy of Sciences(2015385) ; Key Program of the Chinese Academy of Sciences(KSZD-EW-Z-022-05) ; Key Program of the Chinese Academy of Sciences(KSZD-EW-Z-022-05) ; Science and Technology Service Programs of the Chinese Academy of Sciences(KFJ-STS-ZDTP-002 ; Science and Technology Service Programs of the Chinese Academy of Sciences(KFJ-STS-ZDTP-002 ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences(YZJJ201502) ; President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences(YZJJ201502) ; KFJ-SWSTS-143) ; KFJ-SWSTS-143)
WOS研究方向Chemistry ; Materials Science
WOS类目Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号WOS:000406086000007
引用统计
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33531
专题技术生物与农业工程研究所
作者单位1.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab Ion Beam Bioengn, 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
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GB/T 7714
Wang, Dongfang,Zhang, Guilong,Zhou, Linglin,et al. Synthesis of a Multifunctional Graphene Oxide-Based Magnetic Nanocomposite for Efficient Removal of Cr(VI)[J]. LANGMUIR,2017,33(28):7007-7014.
APA Wang, Dongfang,Zhang, Guilong,Zhou, Linglin,Wang, Min,Cai, Dongqing,&Wu, Zhengyan.(2017).Synthesis of a Multifunctional Graphene Oxide-Based Magnetic Nanocomposite for Efficient Removal of Cr(VI).LANGMUIR,33(28),7007-7014.
MLA Wang, Dongfang,et al."Synthesis of a Multifunctional Graphene Oxide-Based Magnetic Nanocomposite for Efficient Removal of Cr(VI)".LANGMUIR 33.28(2017):7007-7014.
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