氧化锰的氨基乙酸燃烧法制备及催化特性研究  

Investigation on the Catalytic Properties of Manganese Oxide Prepared by Glycine Combustion method

作　　者：付军力 吴跃辉[1] 秦元成[1] 李平[1] 马莹莹[1] 

机构地区：[1]南昌航空大学,南昌330063

出　　处：《南昌航空大学学报（自然科学版）》2013年第4期96-100,共5页Journal of Nanchang Hangkong University(Natural Sciences)

基　　金：江西省教育厅科技项目(GJJ10516);南昌航空大学博士启动基金(EA200902007)

摘　　要：采用氨基乙酸燃烧法制备氧化锰,通过X射线衍射、扫描电镜对样品氧化锰的成分和表观形貌进行研究,通过间苯二酚模拟废水降解试验,对氧化锰催化特性进行研究。结果表明:焙烧温度越高,氧化锰结晶度越好,在550℃能得到标准的氧化锰晶体,当焙烧温度达到700℃以上时,氧化锰出现烧结现象;不同焙烧温度制得氧化锰对苯酚类有机污染物的降解效果:550℃>325℃>700℃;相同反应条件下,H2O2的添加使氧化锰对苯酚类有机污染物的降解率提高20%左右,达到45%。Samples were prepared by glycine combustion at different calcination temperatures. Composition and apparent morphology of manganese oxide samples were studied by X-ray diffraction （XRD） and scanning electron microscope （SEM）, respectively. By using resorcinol simulated degradation of wastewater, the catalytic property of manganese oxide was tested. The results demonstrate that the higher the calcination temperature, the better the manganese oxide crystallinity is. Moreover, we can get the standard manganese oxide crystal at about 550 ℃. The manganese oxide gets sintered when the calcination temperature is above 700 ℃. The catalytic degradation efficiency of manganese oxides prepared at different calcination temperatures to phenol class organic pollutant is in the order of 550 ℃〉 325℃ 〉 700℃. The degradation efficiency of phenol class organic pollutant by manganese oxide gets 20% raised, to 45%, under the same reacting condition, on the effect of H202.

关 键 词：氨基乙酸 燃烧法 氧化锰 催化特性 H2O2 间苯二酚 

分 类 号：TQ426.6[化学工程]