Photooxidation of Furfural with Phthalocyanine-sensitized TiO_2 Particle Under Xenon Lamp  

作　　者：KANG Chun-li LU Yu GUO Ping ZHANG Fan YU Hong-bing LIN Xue-yu 

机构地区：[1]Department of Environment Science College of Environment and Resources, Jilin University, Changchun 130021, China [2]Department of Hydrology and Water Resource, College of Environment and Resources, Jilin University, Changchun 130021, China

出　　处：《Chemical Research in Chinese Universities》2007年第2期154-158,共5页高等学校化学研究（英文版）

基　　金：Jilin Scientific Research Committee Foundation(No 20010422)

摘　　要：Copper phthalocyanine was selected as the photosensitizer to sensitize TiO2 in this experiment with furfural as the target pollutant. The composite catalysts（TiO2/CuPC） obtained showed a great activity under a xenon lamp. By experiments, the optimal preparation conditions of the composite catalysts were set as follows ： the CuPC loading mass fraction was 1.5%, the mass fraction of acetylacetone was 0. 3% , and the stirring time was 10 h. UV-Vis diffuse reflectance spectra, XRD, and BET were used to characterize the properties of the composite catalysts, which showed that after loading CuPC on TiO2, the composite catalyst retained the same crystal structure as pure TiO2 and the wavelength range of its absorption spectrum was broadened to 600-700 nm while its surface area was smaller than that of the pure TiO2. Under the optimal conditions, 20 mg/L furfural solution was degraded by nearly 90% and TOC by about 70%. When the catalyst was reused 6 times, the activity of the catalyst was still retained by about 75%.Copper phthalocyanine was selected as the photosensitizer to sensitize TiO2 in this experiment with furfural as the target pollutant. The composite catalysts（TiO2/CuPC） obtained showed a great activity under a xenon lamp. By experiments, the optimal preparation conditions of the composite catalysts were set as follows ： the CuPC loading mass fraction was 1.5%, the mass fraction of acetylacetone was 0. 3% , and the stirring time was 10 h. UV-Vis diffuse reflectance spectra, XRD, and BET were used to characterize the properties of the composite catalysts, which showed that after loading CuPC on TiO2, the composite catalyst retained the same crystal structure as pure TiO2 and the wavelength range of its absorption spectrum was broadened to 600-700 nm while its surface area was smaller than that of the pure TiO2. Under the optimal conditions, 20 mg/L furfural solution was degraded by nearly 90% and TOC by about 70%. When the catalyst was reused 6 times, the activity of the catalyst was still retained by about 75%.

关 键 词：TiO2 CUPC Phthalocyanine-photosensitizer FURFURAL PHOTOOXIDATION 

分 类 号：X703[环境科学与工程—环境工程] X13