Poly(vinylidene fluoride) derived fluorine-doped magnetic carbon nanoadsorbents for enhanced chromium removal

被引：60

作者：

Cao, Yonghai ^{[1
,2
]}

Huang, Jiangnan ^{[1
,2
]}

Peng, Xiangfang ^{[1
]}

Cao, Dapeng ^{[3
]}

Galaska, Alexandra ^{[1
]}

Qiu, Song ^{[4
]}

Liu, Jiurong ^{[4
]}

Khan, Mojammel A. ^{[5
]}

Young, David P. ^{[5
]}

Ryu, Jong Eun ^{[6
]}

Feng, Hongbo ^{[7
]}

Yerra, Narendranath ^{[8
]}

Guo, Zhanhu ^{[2
]}

机构：

[1] South China Univ Technol, Minist Educ, Lab Polymer Proc Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] Univ Tennessee, ICL, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA

[3] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

[4] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Shandong, Peoples R China

[5] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

[6] Indiana Univ Purdue Univ, Dept Mech Engn, Indianapolis, IN 46202 USA

[7] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

[8] Engn Multifunct Composites EMC Nanotech LLC, Knoxville, TN 37934 USA

来源：

CARBON | 2017年 / 115卷

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

ONE-POT SYNTHESIS; OXYGEN REDUCTION REACTION; ANATASE TIO2 NANOSHEETS; ONE-STEP SYNTHESIS; HEXAVALENT CHROMIUM; ACTIVATED CARBON; AQUEOUS-SOLUTION; WASTE-WATER; AEROBIC OXIDATION; CR(VI) REMOVAL;

D O I：

10.1016/j.carbon.2017.01.033

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Newly designed fluorine-doped magnetic carbon (F-MC) was synthesized in situ though a facile one-step pyrolysis-carbonization method. Poly(vinylidene fluoride) (PVDF) served as the precursor for both carbon and fluorine. 2.5% F content with core-shell structure was obtained over F-MC, which was used as a adsorbent for the Cr(VI) removal. To our best knowledge, this is the first time to report that the fluorine doped material was applied for the Cr(VI) removal, demonstrating very high removal capacity (1423.4 mg g(-1)), higher than most reported adsorbents. The unexpected performance of F-MC can be attributed to the configuration of F dopants on the surface. The observed pseudo-second-order kinetic study indicated the dominance of chemical adsorption for this process. High stability of F-MC after 5 recycling test for the Cr(VI) removal was also observed, indicating that F-MC could be used as an excellent adsorbent for the toxic heavy metal removal from the wastewater. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：503 / 514

页数：12

共 72 条

[1] A SCALE OF ELECTRONEGATIVITY BASED ON ELECTROSTATIC FORCE [J].

ALLRED, AL ;

ROCHOW, EG .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1958, 5 (04) :264-268

[2] Supercritical-fluid synthesis of FeF2 and CoF2 Li-ion conversion materials [J].

Armstrong, Mark J. ;

Panneerselvam, Arunkumar ;

O'Regan, Colm ;

Morris, Michael A. ;

Holmes, Justin D. .

JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (36) :10667-10676

[3] Surface functionalized nanofibers for the removal of chromium(VI) from aqueous solutions [J].

Avila, M. ;

Burks, T. ;

Akhtar, F. ;

Gothelid, M. ;

Lansaker, P. C. ;

Toprak, M. S. ;

Muhammed, M. ;

Uheida, A. .

CHEMICAL ENGINEERING JOURNAL, 2014, 245 :201-209

[4] Influence of particle size and fluorination ratio of CFx precursor compounds on the electrochemical performance of C-FeF2 nanocomposites for reversible lithium storage [J].

Breitung, Ben ;

Reddy, M. Anji ;

Chakravadhanula, Venkata Sai Kiran ;

Engel, Michael ;

Kuebel, Christian ;

Powell, Annie K. ;

Hahn, Horst ;

Fichtner, Maximilian .

BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 2013, 4 :705-713

[5] A simple one-pot synthesis of highly fluorescent nitrogen-doped graphene quantum dots for the detection of Cr(VI) in aqueous media [J].

Cai, Fei ;

Liu, Xidong ;

Liu, Shuang ;

Liu, Hong ;

Huang, Yuming .

RSC ADVANCES, 2014, 4 (94) :52016-52022

[6] Stabilization of chromium ore processing residue (COPR) with nanoscale iron particles [J].

Cao, Hasheng ;

Zhang, Wei-Xian .

JOURNAL OF HAZARDOUS MATERIALS, 2006, 132 (2-3) :213-219

[7] One-pot melamine derived nitrogen doped magnetic carbon nanoadsorbents with enhanced chromium removal [J].

Cao, Yonghai ;

Huang, Jiangnan ;

Li, Yuhang ;

Qiu, Song ;

Liu, Jiurong ;

Khasanov, Airat ;

Khan, Mojammel A. ;

Young, David P. ;

Peng, Feng ;

Cao, Dapeng ;

Peng, Xiangfang ;

Hong, Kunlun ;

Guo, Zhanhu .

CARBON, 2016, 109 :640-649

[8] Aerobic oxidation of α-pinene catalyzed by carbon nanotubes [J].

Cao, Yonghai ;

Li, Yuhang ;

Yu, Hao ;

Peng, Feng ;

Wang, Hongjuan .

CATALYSIS SCIENCE & TECHNOLOGY, 2015, 5 (08) :3935-3944

[9] Selective Allylic Oxidation of Cyclohexene Catalyzed by Nitrogen-Doped Carbon Nanotubes [J].

Cao, Yonghai ;

Yu, Hao ;

Peng, Feng ;

Wang, Hongjuan .

ACS CATALYSIS, 2014, 4 (05) :1617-1625

[10] sp2- and sp3 -hybridized carbon materials as catalysts for aerobic oxidation of cyclohexane [J].

Cao, Yonghai ;

Luo, Xianyu ;

Yu, Hao ;

Peng, Feng ;

Wang, Hongjuan ;

Ning, Guoqing .

CATALYSIS SCIENCE & TECHNOLOGY, 2013, 3 (10) :2654-2660

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