【作者】 陈海燕； 王树林；

【Author】 Chen Hai-yan,Wang Shu-lin (Institute of Chemical Progressing Machinery,College of Power Engineering,University of Shanghai for Science and Technology, Shanghai 200093,China)

【机构】 上海理工大学动力学院化工过程机械研究所；

【摘要】 利用滚压振动磨在干法室温条件下制备出形状规则的纳米锌粉,在260℃下与水蒸汽接触发生水解氧化还原反应,得到氧化锌纳米复合结构。利用X射线衍射仪(XRD)、透射电镜(TEM)对样品晶体结构和形貌进行了表征。结果表明,ZnO纳米颗粒平均粒径约为60 nm,材料结晶良好,无杂质。在距离40cm的20W紫外灯照射下,在50mL初始浓度为10mg/L的甲基橙溶液中,添加260℃下水解生成的氧化锌纳米复合结构400mg,在10 min内降解率可达80%以上。更多还原

【Abstract】 The roller vibration milling was used to manufacture Zinc nanoparticles with wurtzite hexagonal phase in dry mode and at room temperature,then hydrolyzed zinc nanoparticles with water vapour at 260℃to obtain ZnO nanostructure or hybrid of ZnO and Zn nanost ructures.The assynthesized particles and their optical performance were characterized by XRD,TEM.The synthesized ZnO nanopartic-les,the size of which is about 60nm,have good crystal structure,and are free of impurity.Using the produced hybrid nanostructures as catalyst,exposed the 20mg/L methyl orange solution to a UV source light of 20W with distance of 40cm for 10min, the decomposition degree rised above 80%.更多还原