Graphene-supported flocculent-like TiO2 nanostructures for enhanced photoelectrochemical activity and photodegradation performance |
| |
| Affiliation: | 1. Hunan Key Laboratory of Micro–Nano Energy Materials and Devices, Xiangtan University, Hunan 411105, PR China;2. Laboratory for Quantum Engineering Micro–Nano Energy Technology, School of Physics and Optoelectronics, Xiangtan University, Hunan 411105, PR China;1. Escola Técnica de Saúde, Universidade Federal da Paraíba, Cidade Universitária, João Pessoa CEP 58051-900, PB, Brazil;2. Departamento de Engenharia de Materiais, Universidade Federal de Campina Grande, Av. Aprígio Veloso 882, Catolé, Campina Grande CEP 58 429-900, PB, Brazil;3. Departamento de Engenharia de Materiais, Universidade Federal da Paraíba, Cidade Universitária, João Pessoa CEP 58051-900, PB, Brazil;1. School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, PR China;2. Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong;1. Department of Materials Science and Engineering, National Cheng Kung University, Tainan City 70101, Taiwan;2. Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan City 70101, Taiwan;3. Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan City 70101, Taiwan |
| |
| Abstract: | Here, novel graphene/TiO2 nanocomposite has been successfully prepared by loading flocculent-like titanate nanostructure in graphene sheets via hydrothermal method plus a subsequent annealing process. The as-obtained hybrid was characterized by X-ray diffraction, scanning electron microscopy with an energy dispersive spectroscope (EDS), Raman, and UV–vis diffuse reflectance spectra, respectively. The photoelectrochemical activities and photocatalytic degradation performance of methyl orange under the illumination of ultraviolet light were investigated, and the flocculent-like TiO2/graphene composites was found to have a superior photocatalytic activity compared to flocculent-like titanate nanostructure and commercial anatase TiO2 powder, which can be attributed to the improved light absorption and extremely efficient charge separation of the hybrid structure. The results suggest that the as-prepared flocculent-like TiO2/graphene composite is a promising photocatalyst for photoelectrochemical hydrogen production and pollution removal. |
| |
| Keywords: | B Nanocomposites Graphene Photocatalyst |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
