光催化
材料科学
X射线光电子能谱
石墨烯
拉曼光谱
漫反射红外傅里叶变换
二氧化钛
分解水
纳米复合材料
氧化物
化学工程
扫描电子显微镜
钛酸酯
氧化石墨
光谱学
氢
吸附
制氢
纳米技术
复合材料
催化作用
化学
光学
陶瓷
有机化学
工程类
冶金
物理
量子力学
作者
Xiao Yan Zhang,Hao Peng Li,Xiaotong Cui,Yuehe Lin
摘要
A series of titanium dioxide and graphene sheets (GSs) composites were synthesized with a sol–gel method using tetrabutyl titanate and graphite oxide (GO) as the starting materials. The obtained TiO2/GSs photocatalysts are characterized by X-ray diffraction, N2 adsorption analysis, Raman spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and ultraviolet-visible (UV-vis) diffuse reflectance spectroscopy. The photocatalytic activity of the as-prepared samples was evaluated by hydrogen evolution from water photo-splitting under UV-vis illumination. The influence of GSs content and calcinations atmosphere on the photocatalytic activity was also investigated. The results show that both GSs content and the calcinations atmosphere can affect the photocatalytic activity of the obtained composites.
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