Silver Iodide Nanospheres Wrapped in Reduced Graphene Oxide for Enhanced Photocatalysis

被引:16
作者
Liu, Junxue [1 ,2 ]
Luan, Yiliang [1 ,2 ]
An, Changhua [1 ,2 ]
Zhang, Jun [1 ,2 ]
Wang, Dingsheng [3 ]
Li, Yadong [3 ]
机构
[1] China Univ Petr, Coll Chem Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Shandong, Peoples R China
[2] China Univ Petr, Coll Sci, Qingdao 266580, Shandong, Peoples R China
[3] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
graphene; heterogeneous catalysis; nanoparticles; photochemistry; sliver; HIGHLY EFFICIENT; WATER; NANOCOMPOSITE; NANOPARTICLES; COMPOSITES; REDUCTION;
D O I
10.1002/cctc.201500430
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
We have prepared nanocomposites of well-defined spherical AgI nanostructures wrapped in reduced graphene oxide nanosheets (AgI@RGO). The as-obtained AgI@RGO nanocomposites exhibit an enhanced photocatalytic activity and stability in the degradation of organic pollutants, namely, RhodamineB (RhB), in comparison with bare AgI nanospheres. The hybridization of AgI nanospheres with RGO nanosheets affords a good adsorptive capacity for RhB molecules, facilitated charge transfer, and suppressed recombination of electron-hole pairs. These figures of merit lead to an enhanced photocatalytic performance over AgI@RGO. This work opens new possibilities for the development of highly efficient and stable visible-light-driven composite photocatalysts for environmental purification.
引用
收藏
页码:2918 / 2923
页数:6
相关论文
共 32 条
[1]   Concaving Agl sub-microparticles for enhanced photocatalysis [J].
An, Changhua ;
Liu, Junxue ;
Wang, Shutao ;
Zhang, Jun ;
Wang, Zhaojie ;
Long, Ran ;
Sun, Yugang .
NANO ENERGY, 2014, 9 :204-211
[2]   Facile Synthesis of Sunlight-Driven AgCl:Ag Plasmonic Nanophotocatalyst [J].
An, Changhua ;
Peng, Sheng ;
Sun, Yugang .
ADVANCED MATERIALS, 2010, 22 (23) :2570-2574
[3]   Ultrahigh electron mobility in suspended graphene [J].
Bolotin, K. I. ;
Sikes, K. J. ;
Jiang, Z. ;
Klima, M. ;
Fudenberg, G. ;
Hone, J. ;
Kim, P. ;
Stormer, H. L. .
SOLID STATE COMMUNICATIONS, 2008, 146 (9-10) :351-355
[4]   IONIC-CONDUCTIVITY OF BETA-AGI [J].
CAVA, RJ ;
RIETMAN, EA .
PHYSICAL REVIEW B, 1984, 30 (12) :6896-6902
[5]   Monitoring dopants by Raman scattering in an electrochemically top-gated graphene transistor [J].
Das, A. ;
Pisana, S. ;
Chakraborty, B. ;
Piscanec, S. ;
Saha, S. K. ;
Waghmare, U. V. ;
Novoselov, K. S. ;
Krishnamurthy, H. R. ;
Geim, A. K. ;
Ferrari, A. C. ;
Sood, A. K. .
NATURE NANOTECHNOLOGY, 2008, 3 (04) :210-215
[6]   Approaching ballistic transport in suspended graphene [J].
Du, Xu ;
Skachko, Ivan ;
Barker, Anthony ;
Andrei, Eva Y. .
NATURE NANOTECHNOLOGY, 2008, 3 (08) :491-495
[7]   Noncovalent Functionalization, Exfoliation, and Solubilization of Graphene in Water by Employing a Fluorescent Coronene Carboxylate [J].
Ghosh, Anupama ;
Rao, K. Venkata ;
George, Subi J. ;
Rao, C. N. R. .
CHEMISTRY-A EUROPEAN JOURNAL, 2010, 16 (09) :2700-2704
[8]   Graphene-based electronic sensors [J].
He, Qiyuan ;
Wu, Shixin ;
Yin, Zongyou ;
Zhang, Hua .
CHEMICAL SCIENCE, 2012, 3 (06) :1764-1772
[9]   Graphene-based composites [J].
Huang, Xiao ;
Qi, Xiaoying ;
Boey, Freddy ;
Zhang, Hua .
CHEMICAL SOCIETY REVIEWS, 2012, 41 (02) :666-686
[10]   Investigation of Raman and photoluminescence studies of reduced graphene oxide sheets [J].
Krishnamoorthy, Karthikeyan ;
Veerapandian, Murugan ;
Mohan, Rajneesh ;
Kim, Sang-Jae .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2012, 106 (03) :501-506