二氧化钛光催化氧化法灭活大肠杆菌
Inactivation of Escherichia coli by titanium dioxide photocatalytic oxidation.
作者信息
Ireland J C, Klostermann P, Rice E W, Clark R M
机构信息
Drinking Water Research Division, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268.
出版信息
Appl Environ Microbiol. 1993 May;59(5):1668-70. doi: 10.1128/aem.59.5.1668-1670.1993.
Abstract
Titanium dioxide in the anatase crystalline form was used as a photocatalyst to generate hydroxyl radicals in a flowthrough water reactor. Experiments were performed on pure cultures of Escherichia coli in dechlorinated tap water and a surface water sample to evaluate the disinfection capabilities of the reactor. In water devoid of significant amounts of inorganic-radical scavengers, rapid cell death was observed with both pure cultures and members of the indigenous flora in a natural water sample.
摘要
锐钛矿晶型的二氧化钛被用作光催化剂，在流通式水反应器中产生羟基自由基。实验在脱氯自来水中的大肠杆菌纯培养物以及一份地表水样品上进行，以评估该反应器的消毒能力。在没有大量无机自由基清除剂的水中，无论是纯培养物还是天然水样中的本土菌群成员，都观察到了快速的细胞死亡。
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