关键词: 二氧化钛, 光催化, 水热法, 葡萄糖, 可见光

Abstract: A high active nanostructured C@TiO2 hybrid photocatalyst was prepared by a simple and green one-pot method under hydrothermal condition.The sample was characterized by TEM，EDS，XRD，XPS，UV-Vis，BET，and photocatalytic performance test under visible light radiation.Results showed carbon could be uniformly loaded on the surface of TiO₂ nanoparticles by one-pot method.The presence of glucose could inhibit the generation of rutile and brookite TiO₂ and was propitious to form anatase TiO₂，and the XPS results showed the carbon was not doped into the lattices of TiO₂. The C@TiO2 nanocomposites could absorb the full range of visible-light and exhibited an excellent photocatalytic activity under visible light.The analysis results also indicated that the chemical interaction between TiO₂ and carbon may play an important role in such a process.It was a promising visible-light photocatalyst for large-scale industrial application due to its unique performance and simple preparation procedure.

Key words: TiO₂；photocatalysis；hydrothermal process, glucose；visible-light