A Facile Hydrothermal Strategy for Synthesis of SnO2 Nanorods-Graphene Nanocomposites for High Performance Photocatalysis

作者：Chen, Lu-Ya; Zhang, Wei-De^*; Xu, Bin; Yu, Yu-Xiang

来源：Journal of Nanoscience and Nanotechnology, 2012, 12(9): 6921-6929.

DOI：10.1166/jnn.2012.6571

• SnO2
• Graphene
• Nanorods
• Photocatalysis
• Nanocomposite

In this study, we report a facilely hydrothermal process for synthesizing SnO2 nanorods-graphene (SnO2 nanorods-GR) composite using graphite oxide and SnCl4 as raw materials. The SnO2 nanorods-GR composite was characterized by X-ray diffraction, electron microscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. Compared to commercial TiO2 nanoparticles P25 and neat SnO2 nanorods, the SnO2 nanorods-GR composite exhibits higher photocatalytic activity under UV light irradiation. The mechanism of its high photocatalytic activity is mainly ascribed to the synergy effect between SnO2 and graphene, in which graphene acts as an adsorbent and electron acceptor due to its large structure of pi-pi conjugation from sp(2) hybrid carbon atoms. The results demonstrated in this study provide a promising way to enhance the photocatalytic activity by compounding semiconductive nanocrystals with graphene.

• 出版日期2012-9
• 单位华南理工大学; 海南出入境检验检疫局检验检疫技术中心