title: Nanostructured hybrid shells of r-GO/AuNP/m-TiO₂ as highly active photocatalysts.
abstract: 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.
authors.affiliation: †School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
authors.forename: Minggui
authors.initials: M
authors.lastname: Wang
authors.affiliation: †School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.|§Department of Chemistry, University of California, Riverside, California 92521, United States.
authors.forename: Jie
authors.initials: J
authors.lastname: Han
authors.affiliation: ‡School of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, P. R. China.
authors.forename: Huixin
authors.initials: H
authors.lastname: Xiong
authors.affiliation: †School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China.
authors.forename: Rong
authors.initials: R
authors.lastname: Guo
authors.affiliation: §Department of Chemistry, University of California, Riverside, California 92521, United States.
authors.forename: Yadong
authors.initials: Y
authors.lastname: Yin
keywords: Au nanoparticle; TiO2; graphene; hybrid shells; mesoporous; photocatalyst