Photocatalytic Degradation of Phenol by Natural Rutile Under UV and Sunlight Irradiation

• 责任者：Li Lu (Key Laboratory of Orogenic Belts and Crustal Evolution ; MOE ; School of Earth and Space Sciences ; Peking University ; Beijing 100871 ; China) ; Chuang Xiuyun
• 刊名：Acta Petrologica et Mineralogica
• 出版年：2010
• 卷期：29(5)
• 关键词：降解作用 ; degradation ; 金红石 ; rutile
• 页码：p.569-576
• 图表：7 illus., 2 tables, 32 refs.
• 分类号：0600
• issnNo：ISSN1000-6524
• isbnNo：CN11-1966/P

Phenol is a kind of hardly degradable organic pollutants which widely exist in wastewater and pose great harm to human. In this paper, photocatalytic degradation of phenol was investigated using natural rutile TiO₂ powders from Shanxi Province under irradiation of UV and sunlight. The effects of irradiation time, pH value, initial concentration of phenol and dosage of H₂O₂ on the efficiency of photocatalytic degradation of phenol were studied. The results indicate that natural rutile TiO₂, which is commonly thought to have very low catalytic activity, can effectively photodegrade the phenol when it is synergized with H₂O₂, but the coexistence of light source, charge-trapping agent and photocatalyst is the precondition of photocatalytic reaction.