Nanostructured Hybrid Shells of r-GO/AuNP/m-TiO2 as Highly Active Photocatalysts

被引：86
作者：
Wang, Minggui [1 ]
Han, Jie [1 ,3 ]
Xiong, Huixin [2 ]
Guo, Rong [1 ]
Yin, Yadong [3 ]
机构：
[1] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China
[2] Yangzhou Univ, Sch Environm Sci & Engn, Yangzhou 225127, Jiangsu, Peoples R China
[3] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA
来源：
ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 12期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
TiO2; graphene; Au nanoparticle; mesoporous; hybrid shells; photocatalyst; EXPOSED; 001; FACETS; ANATASE TIO2; METAL-IONS; HOLLOW NANOSTRUCTURES; GRAPHENE; NANOCOMPOSITES; COMPOSITE; TITANIA; NANOPARTICLES; FABRICATION;
D O I：
10.1021/acsami.5b00663
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nanostructured hybrid shells of r-GO/AuNP/m-TiO2 were synthesized using SiO2 spheres as templates, followed by graphene oxide (GO) and Au nanoparticle (AuNP) deposition and TiO2 coating, and then post-treatments of template removal and calcination. Evaluation of their photocatalytic activity by degradation of Rhodamine B (RhB) under the irradiation of UV, visible light, and simulated daylight demonstrated the superior photocatalytic performance of the sandwich-like hollow hybrid shells, which could be attributed to the porous nature of the hybrid shells and the enhanced charge separation and visible-light absorption of r-GO and AuNPs.
引用
收藏
页码：6909 / 6918
页数：10
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