Macroscopic Multifunctional Graphene-Based Hydrogels and Aerogels by a Metal Ion Induced Self-Assembly Process

被引:1016
作者
Cong, Huai-Ping [1 ]
Ren, Xiao-Chen [1 ]
Wang, Ping [1 ]
Yu, Shu-Hong [1 ]
机构
[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Dept Chem, Div Nanomat & Chem,Hefei Natl Lab Phys Sci Micros, Hefei 230026, Anhui, Peoples R China
基金
对外科技合作项目(国际科技项目); 中国博士后科学基金; 中国国家自然科学基金;
关键词
graphene; self-assembly; hydrogel; aerogel; alpha-FeOOH; magnetic Fe3O4; nanocomposite; REDUCED GRAPHENE; CHEMICAL-REDUCTION; GRAPHITE OXIDE; SHEETS; ADSORPTION; CARBON; NANOPARTICLES; NANOTUBES; MEMBRANES; REMOVAL;
D O I
10.1021/nn300082k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report a one-step fabrication of macroscopic multifunctional graphene-based hydrogels with robust interconnected networks under the synergistic effects of the reduction of graphene oxide sheets by ferrous ions and in situ simultaneous deposition of nanoparticles on graphene sheets. The functional components, such as alpha-FeOOH nanorods and magnetic Fe3O4 nanoparticles, can be easily incorporated with graphene sheets to assemble macroscopic graphene monoliths just by control of pH value under mild conditions. Such functional graphene-based hydrogels exhibit excellent capability for removal of pollutants and, thus, could be used as promising adsorbents for water purification. The method presented here is proved to be versatile to induce macroscopic assembly of reduced graphene sheets with other functional metal oxides and thus to access a variety of graphene-based multifunctional nanocomposites in the form of macroscopic hydrogels or aerogels.
引用
收藏
页码:2693 / 2703
页数:11
相关论文
共 55 条
[1]   Adsorption of Cr(VI) using activated neem leaves: kinetic studies [J].
Babu, B. V. ;
Gupta, S. .
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY, 2008, 14 (01) :85-92
[2]   On the Gelation of Graphene Oxide [J].
Bai, Hua ;
Li, Chun ;
Wang, Xiaolin ;
Shi, Gaoquan .
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (13) :5545-5551
[3]   Nanostructured Fe3O4/SWNT Electrode: Binder-Free and High-Rate Li-Ion Anode [J].
Ban, Chunmei ;
Wu, Zhuangchun ;
Gillaspie, Dane T. ;
Chen, Le ;
Yan, Yanfa ;
Blackburn, Jeffrey L. ;
Dillon, Anne C. .
ADVANCED MATERIALS, 2010, 22 (20) :E145-+
[4]   Supramolecular gels 'in action' [J].
Banerjee, Supratim ;
Das, Rajat K. ;
Maitra, Uday .
JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (37) :6649-6687
[5]   Carbon nanotube aerogels [J].
Bryning, Mateusz B. ;
Milkie, Daniel E. ;
Islam, Mohammad F. ;
Hough, Lawrence A. ;
Kikkawa, James M. ;
Yodh, Arjun G. .
ADVANCED MATERIALS, 2007, 19 (05) :661-+
[6]   Recent advance in functionalized graphene/polymer nanocomposites [J].
Cai, Dongyu ;
Song, Mo .
JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (37) :7906-7915
[7]   Water-Dispersible Magnetite-Reduced Graphene Oxide Composites for Arsenic Removal [J].
Chandra, Vimlesh ;
Park, Jaesung ;
Chun, Young ;
Lee, Jung Woo ;
Hwang, In-Chul ;
Kim, Kwang S. .
ACS NANO, 2010, 4 (07) :3979-3986
[8]   Graphene Oxide-MnO2 Nanocomposites for Supercapacitors [J].
Chen, Sheng ;
Zhu, Junwu ;
Wu, Xiaodong ;
Han, Qiaofeng ;
Wang, Xin .
ACS NANO, 2010, 4 (05) :2822-2830
[9]   Self-Assembly and Embedding of Nanoparticles by In Situ Reduced Graphene for Preparation of a 3D Graphene/Nanoparticle Aerogel [J].
Chen, Wufeng ;
Li, Sirong ;
Chen, Chunhua ;
Yan, Lifeng .
ADVANCED MATERIALS, 2011, 23 (47) :5679-+
[10]   In situ self-assembly of mild chemical reduction graphene for three-dimensional architectures [J].
Chen, Wufeng ;
Yan, Lifeng .
NANOSCALE, 2011, 3 (08) :3132-3137