改性5A分子筛对水中As(Ⅴ)的吸附作用研究  

Adsorption of As(Ⅴ) by the modificated molecular sieve type 5A

作　　者：王慧[1] 刘建[1] 李宇亮[1] 王浩田 

机构地区：[1]长安大学环境科学与工程学院,陕西西安710054 [2]西安中扬电器股份有限公司实验室,陕西西安710075

出　　处：《应用化工》2007年第7期696-699,共4页Applied Chemical Industry

摘　　要：改性5A分子筛是一种高效吸附材料。实验用5A分子筛作为载体,制备了该吸附剂,并表征了其基本性质。结果表明,改性5A分子筛对As(Ⅴ)具有很高的吸附率和选择性;室温下,pH=7时,改性5A分子筛吸附As(Ⅴ)的吸附等温线符合Langmuir型和Freundlich型。The modificated molecular sieve type 5A is high efficient adsorption materials ,which be used as carrier to prepare this absorbant, and its basic properties was characterized. The result indicates that, the adsorbent has high selectivity and adsorption capacity in process of removing arsenic. Both the Langmuir model and the Freundlich model can simulate the adsorption equilibrium of arsenate.

关 键 词：5A分子筛 改性 砷 吸附 

分 类 号：TU991.2[建筑科学—市政工程]