Degradation of Trace Oil by Nano-TiO2 Loaded on Hollow Float Beads

摘要：

The nano-TiO2 photocatalysts which loaded on hollow float beads were prepared by sol-gel process. The hollow float beads as carrier was modified by H2SO4 and the TiO2 sol was obtained by tetrabutyl titanate, the modified hollow float beads was added into TiO2 sol, the TiO2 gel was obtained, then calcined at 450℃, 500℃, 550℃ respectively and obtained asproduced samples. Their property were characterized by TGA, XRD and SEM, Their photoactivity was evaluated by the photodegradation of the trace oil from fossil-fired power plant condensate under a series of temperature (15℃~45℃) , pH value (2~14) , initial oil concentration (5mg/L) and catalysts dosage (2.500g/L, 4.000g/L, 5.000g/L, 6.000 g/L, 7.500g/L, 10.000g/L), the experimental results showed that as temperature at 35℃, pH value at 10, catalysts dosage at 5.000g/L and calcined temperature at 500℃, the trace oil degradation rate could exceed 90％ in 12 h, the catalysts could provided a efficient method to degradate the trace oil.

关键词： Sol-gel Hollow float beads Nano-TiO2 Photocatalyst Trace Oil

作者: Zhiping Zhu Ting Liu Shuhua Xiong Lingling Jing

作者单位: College of Chemical and Biological Engineering, Changsha University of Science & Technology,Changsha College of Chemical and Biological Engineering, Changsha University of Science & Technology,Changsha

会议类型: 国际会议

会议名称: 2010 International Conference on Advanced Mechanical Engineering(2010年先进机械工程国际学术会议 AME 2010)

会议地点: 洛阳

会议语种:英文

页码: 564-567

在线出版日期: 2010-09-04（万方平台首次上网日期，不代表论文的发表时间）