文献类型：期刊文献

英文题名：Photocatalytic degradation of oil film floating on water by TiO₂ immobilized on expanded perlite

作者：Yang, Y; Chen, AP; Gu, HC; Dai, ZM; Gu, ZR; Tao, Y

机构：[1]E China Univ Sci & Technol, Inst Tech Chem & Phys, Key Lab Preparat & Applicat Ultrafine Mat, Dept Educ, Shanghai 200237, Peoples R China

年份：2001

卷号：22

期号：2

起止页码：177

外文期刊名：CHINESE JOURNAL OF CATALYSIS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000170359000021)】；

语种：英文

外文关键词：titania; expanded perlite; decane; floating oil; photocatalytic degradation

摘要：The preparation condition for the photocatalyst with TiO2 immobilized on expanded perlite TiO2/ EP and the photocatalytic degradation process of oil film floating on water were discussed. The floating property of the photocatalyst was also investigated. The photocatalyst TiO2/EP was characterized by SEM, BET and the determination of TiO2 amount. The degradation efficiency of decane, a model substance of oil on water, was studied with irradiation by sunlight. The decane remaining in the solution phase and on the photocatalyst was analyzed by GC. It was observed that about 95% of decane was degraded within 7 h. The results showed that the TiO2/EP photocatalyst can float on water for a long time. The mechanism of concentration and then photocatalytic degradation of the floating oil on the photocatalyst was proposed.