环境工程学报2012，Vol.6Issue(8)：2533-2538,6.
光催化降解水体异味物质2-MIB的机理
Mechanism for photocatalytic degradation of odor 2-methylisoborneol in drinking water
摘要
Abstract
The photocatalytic degradation characteristics and photochemical mechanism of odor 2-methyli- soborueol （2-MIB） by TiO2 （P25） under UV irradiation （A 〈 380 nm） were studied. The results showed that 2- MIB in water bodies was effectively degraded in the photocatalytie system of UV/TiO2. The degradation rate of 2- MIB reached 95% under UV illumination for 60 rain. The effects of pH, coexisting humic acid （HA） and potas- sium sulfate （K2S208） on UV/TiO2system were researched. The results demonstrated that low concentration of HA （ ~ O. 5 rag/L） improved the degradation while high concentration of HA （ 〉0.5 rag/L） inhibited the deg- radation of 2-MIB. K2S208, an electronic aceeptor, enhanced the degradation rate of 2-MIB by significantly in- creasing the concentration of hydroxyl radical （ OH） in the system. The concentration of OH and hydrogen peroxide （H202） was determined by the fluorescence method and the N, N-diethyl-p-phenylenediamine （DPD） method.关键词
2-甲基异莰醇（2-MIB）/TiO2/光催化Key words
2-methylisoborneol/Ti02/photocatalysis分类
资源环境引用本文复制引用
何燕,刘立明,张钰,方艳芬,顾彦,黄应平,张爱清..光催化降解水体异味物质2-MIB的机理[J].环境工程学报,2012,6(8):2533-2538,6.基金项目
国家自然科学基金资助项目 （）
湖北省创新群体项目 （）
催化材料科学湖北省暨国家民委-教育部共建重点实验室开放基金 （）
