锌粉-石墨的机械研磨复合及其室光催化性能  

Synthesis of Zinc/Graphite Compounds by Mechanical Milling and Its Catalytic Performance Under Room Light

作　　者：田汇泉[1] 王树林[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《材料导报》2015年第2期33-37,共5页Materials Reports

基　　金：国家教育部博士点基金(20113120110005);上海市科委纳米专项(1052nm02900)

摘　　要：利用滚压振动磨在干法室温和氩气保护环境下制备了锌粉-石墨复合产物,表征了产物的结构特征,并分析了产物的演变过程及其室光催化效果。研究表明,在混合研磨过程中,锌粉将优先于石墨晶体吸收振动能量而使晶粒发生细化,并均匀地钉扎分布在大片石墨的表面。同时,锌颗粒和石墨晶体之间发生激烈的相互作用,使石墨层间结构发生破坏,减薄为纳米级的片状结构或直径在30-50nm的球形石墨结构。锌-石墨复合结构对甲基橙的催化降解具有硬特性,经连续3次循环使用,其催化效果没有丝毫衰减,反而有所上升。Using the vibration rolling mill at room temperature and argon gas protection environment,the zincgraphite composite products were prepared,the structure was characterized,and the evolution process and its photocatalytic effect of the product were analyzed.Studies have shown that zinc powder was prior to the graphite crystals to absorb vibration energy and make the grain refinement,and nail pierced evenly distributed on the surface of large graphite.At the same time,the violent interaction force take place between the zinc particles and graphite crystal,the graphite layers structure have been damaged and thinning into nanoscale flake or spherical graphite structure which diameter was 30-50 nm at last.Zinc-graphite composite structure presents an efficient characteristics on the catalytic degradation of methyl orange,even after recycling consecutively for three times,its catalytic effect have no attenuation,rose instead.

关 键 词：滚压振动磨 石墨 锌粉 催化降解 有机污染 

分 类 号：TQ127[化学工程—无机化工]