%0 Journal Article
%T Mechanism discussion of gamma-alumina catalyzed ozonation for 2-methylisoborneol removal]<br>γ-Al2O3催化臭氧氧化水中嗅味物质机理探讨
%A CHEN Zhong-lin
%A QI Fei
%A XU Bing-bing
%A SHEN Ji-min
%A BEN Yue
%A YE Miao-miao
%A <br>陈忠林
%A 齐飞
%A 徐冰冰
%A 沈吉敏
%A 贲岳
%A 叶苗苗
%J 环境科学
%D 2007
%I 
%X The efficiency and mechanism in degradation of 2-methylisoborneol (MIB) as taste and odor compound in drinking water were studied under the condition where gamma-alumina catalyzed ozonation. As a result, gamma-alumina can behave distinct activity in enhancing the efficiency of ozonation MIB. Tert-butyl alcohol had a remarkable restrain effect on removal efficiency of catalytic ozonation MIB by gamma-alumina. The surface charge status and surface hydroxyl groups status of gamma-alumina and pH values of the solution can be linked together. When the pH value of solution was near the pH(zpc) of gamma-Al2O3, there was a most observable activity in catalyzed ozonation process. R(ct), which denoted the relative concentration of hydroxyl radical (*OH), was much higher in catalyzed ozonation process than in ozonation process. This result further illuminated that gamma-Al2O3 can promote ozone decomposition to produce *OH. Finally, it was investigated that the effect of r(P/I) on catalyzed ozone decomposition and ozone decomposition.
%K γ-Al2O3
%K 2-甲基异茨醇（MIB）
%K 羟基自由基（·OH）
%K pHzpc
%K 表面羟基
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=BC85E858628321E1A88FF6199E49441B&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=38B194292C032A66&sid=8DBE05486163BAB2&eid=6D6B4A516C7DB6EE&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=19