介孔纳米γ-Al_2O_3的制备及其对硫酸根离子的吸附性能研究  

Preparation of the Mesoporous Nanocrystal γ-Al_2O_3 Powders and Adsorption Behavior Research to SO_4^(2-)

作　　者：冯智宇[1] 冯青琴[2] 

机构地区：[1]河南省科学院,郑州450003 [2]安阳师范学院化学化工学院,河南安阳455000

出　　处：《河南科学》2009年第8期924-927,共4页Henan Science

基　　金：安阳市科技攻关资助项目(2008-51)

摘　　要：利用模板法合成介孔纳米γ-Al2O3,用透射电镜(TEM)、X射线衍射(XRD)、比表面测定(BET)等手段对所得的介孔纳米γ-Al2O3进行了表征.考察了介孔纳米γ-Al2O3在静态条件下对硫酸根离子的吸附性能.探讨了溶液的初始浓度、pH值、时间和温度对吸附性能的影响,结果表明:介孔纳米γ-Al2O3对硫酸根离子有较好的吸附性能,其吸附行为符合Freundlich等温式.The mesoporous nanocrystal γ-Al2O3 powders were synthesized by sol-gel method and characterized by TEM,XRD,BET. The adsorption characterization of the powders to SO4^2- in static condition were explored. The effects of the concentration, pH, time, temperature on adsorption capacity were investigated. Mesoporous nanocrystal γ-Al2O3 has a better adsorption to SO4^2-. Its adsorption behavior was coincided with the equation of Freundlich.

关 键 词：介孔纳米γ-Al2O3 溶胶-凝胶法 吸附 硫酸根离子 

分 类 号：TQ028.15[化学工程]