改性斜发沸石对Cu^(2+)的去除研究  

Removal of Copper Ions with Modified Clinoptilolite

作　　者：丁真贞[1] 张一[1] 孙莉莉[1] 胡贵远 王留芳[1] 

机构地区：[1]河南省地矿局第二地质勘查院,河南许昌461000

出　　处：《广州化学》2015年第2期37-40,50,共5页Guangzhou Chemistry

摘　　要：通过Na OH碱熔法对缙云斜发沸石进行改性,通过BET法、SEM和XRD对天然斜发沸石及改性条件下沸石进行了表征,发现改性后缙云斜发沸石转变为低硅铝比的Na-P型分子筛,结构规整,比表面际增大。将其用于模拟废水中铜离子的去除,每克改性斜发沸石交换的铜离子的质量达65 mg,表现出较好性能。The Chinese natural clinoptilolite was modified by alkali fusion and hydrothermal treatment. The modified clinoptilolite was characterized with X-ray diffraction （XRD）, scanning electron microscopy （SEM） and BET. It was found that the modification processes led to the formation of the Na-P zeolite with lower Si/Al molar ratio, regular structure and increscent_speeific surface area. The modified clinoptilolite also showed good performance on removal of copper ions in simulated wastewater, with adsorption capacities 65 mg/g.

关 键 词：改性斜发沸石 Na-P型分子筛 铜离子 

分 类 号：O652.1[理学—分析化学]