| 水合氧化铈铝柱撑锂皂石对氟的吸附性能研究 |
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| 引用本文： | 林英光,皮丕辉,郑大锋,杨卓如,王炼石. 水合氧化铈铝柱撑锂皂石对氟的吸附性能研究[J]. 中国环境科学, 2010, 30(1): 52-57 |
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| 作者姓名： | 林英光 皮丕辉 郑大锋 杨卓如 王炼石 |
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| 作者单位： | 1. 华南理工大学材料科学与工程学院,广东广州,510640
2. 华南理工大学化学与化工学院,广东广州,510640 |
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| 基金项目： | 华南理工大学教育发展基金项目 |
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| 摘 要： | 以锂皂石为层间黏土原料,通过微波插层反应,制备了水合氧化铈铝柱撑锂皂石新型层柱材料,采用FTIR、XRD、SEM等分析手段对材料的结构进行了表征,并研究了该材料对氟的吸附性能.结果表明,水合氧化铈铝进入锂皂石层间,形成具有层状微晶结构的柱撑锂皂石材料.随着铈铝柱化剂与锂皂石质量比(Xm)的增大,材料片层结构的层间距扩大、结晶度提高、表面结构更丰富.该材料对F-的吸附率随Xm、吸附剂用量的增大而提高,吸附过程符合Langmuir等温吸附方程;当Xm达到0.1、吸附剂用量为0.2g/L时,该材料在60min内对F-的吸附率可达到90%,吸附量达13.5mg/g,该吸附作用受温度、pH值的影响不大.
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| 关 键 词： | 水合氧化铈铝 柱撑锂皂石 微波插层反应 氟吸附 吸附性能 |
| 收稿时间： | 2009-05-27; |
Adsorption property of fluoride ion on laponite pillared by hydrous ceria and alumina |
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| LIN Ying-guang,PI Pi-hui,ZHENG Da-feng,YANG Zhuo-ru,WANG Lian-shi. Adsorption property of fluoride ion on laponite pillared by hydrous ceria and alumina[J]. China Environmental Science, 2010, 30(1): 52-57 |
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| Authors: | LIN Ying-guang PI Pi-hui ZHENG Da-feng YANG Zhuo-ru WANG Lian-shi |
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| Affiliation: | LIN Ying-guang1,PI Pi-hui2,ZHENG Da-feng2,YANG Zhuo-ru2,WANG Lian-shi1(1.College of Material Science , Engineering,South China University of Technology,Guangzhou 510640,China,2.School of Chemistry , Chemical Engineering,China). |
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| Abstract: | The laponite pillared by hydrous ceria and alumina was prepared using synthetic laponite as interlayer clay by microwave intercalation reaction method.The micro-structure of pillared laponite was characterized by FTIR,XRD,SEM,and its adsorption property of fluoride ion was investigated.Hydrous ceria and alumina could be intercalated into the structure of laponite and a layered microcrystalline structure could be formed.With the increase of mass ratio(Xm) of Ce-Al pillaring agent and laponite,the d001 value ... |
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| Keywords: | hydrous ceria and alumina pillared laponite microwave intercalation reaction adsorption for fluoride ion adsorption property |
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