不同形貌ZnO悬浮液中H2O2的定量检测  

Quantitative evaluation of H_2O_2 in aqueous suspensions of zinc oxides with different morphologies

作　　者：朱文君[1] 徐晓玲[1] 周祚万[1] 

机构地区：[1]西南交通大学材料科学与工程学院,材料先进技术教育部重点实验室,四川成都610031

出　　处：《功能材料》2010年第11期1970-1973,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50272056);国家高技术研究发展计划(863计划)资助项目(2009AA03Z427)

摘　　要：H2O2被认为是ZnO产生抗菌性能的主要原因。利用专一化学反应,结合分光光度分析,定量检测了四针状氧化锌晶须、纳米氧化锌和普通工业级氧化锌悬浮液中过氧化氢的产生量,并讨论了形貌和光照条件对ZnO悬浮液中过氧化氢产量的影响。结果表明,上述3种ZnO悬浮液在模拟日光、紫外光及无光条件下都可以产生过氧化氢,四针状氧化锌晶须产生的过氧化氢量最多,其次是纳米氧化锌,最后是普通氧化锌;分析认为,形貌对过氧化氢产量的影响程度超过粒径和比表面积。Hydrogen peroxide（H2O2）is considered as one of the primary factors in antibacterial mechanism of zinc oxide powder slurry.The H2O2 generated from the suspensions of zinc oxides with different morphologies under different light excitations were studied according to specified reaction followed by UV-Vis spectrophotometer.The results indicated that H2O2 was detected out from the three kinds of zinc oxide suspensions under simulated sunlight,darkness or UV-light.The productivities of H2O2 from the related three kinds of ZnOs were ranked as T-ZnO,n-ZnO and p-ZnO,whatever the light excited or not.There was no apparent proportional relationship between light conditions and the production of H2O2,and the morphology had more obvious effect than particle size and/or specific surface area.

关 键 词：氧化锌 过氧化氢 形貌 定量分析 

分 类 号：TB34[一般工业技术—材料科学与工程]