| CuZnMgAl水滑石衍生金属氧化物对废水中Pb(Ⅱ)的吸附 |
| |
| 引用本文： | 王军涛,陈兰萍,詹正坤.CuZnMgAl水滑石衍生金属氧化物对废水中Pb(Ⅱ)的吸附[J].化学研究,2012(1):39-42. |
| |
| 作者姓名： | 王军涛 陈兰萍 詹正坤 |
| |
| 作者单位： | [1]咸宁学院化学与生命科学学院,湖北咸宁437100 [2]华中师范大学化学学院,湖北武汉430079 |
| |
| 基金项目： | 基金项目：咸宁学院第四期大学生课外科技项目,咸宁学院校级青年科研项目（KY10051）. |
| |
| 摘 要： | 采用共沉淀法合成了不同物质的量之比的CuZnMgAl水滑石(CuZnMgAl-HT),采用X射线衍射仪和热分析仪分析了其晶体结构和热稳定性;将CuZnMgAl-HT的焙烧产物作为吸附剂,测定了其对废水中Pb(Ⅱ)的吸附性能.结果表明,最佳吸附条件为温度30℃,pH 6.0,初始浓度80mg/L,水滑石前体Cu、Zn、Mg、Al的金属物质的量之比为1∶1∶4∶2,吸附时间40min时,相应的吸附率可达95.23%.
|
| 关 键 词： | 水滑石 金属氧化物 二价铅 吸附 |
Adsorption lead ion in waste water by metallic oxides derived from CuZnMgAl-hydrotalcites |
| |
| WANG Jun-tao,CHEN Lan-ping,ZHAN Zheng-kun.Adsorption lead ion in waste water by metallic oxides derived from CuZnMgAl-hydrotalcites[J].Chemical Research,2012(1):39-42. |
| |
| Authors: | WANG Jun-tao CHEN Lan-ping ZHAN Zheng-kun |
| |
| Institution: | 1 .School of Chemistry and Life Science, Xianning College, Xianning 437100, Hubei, China; 2. School of Chemistry, Central China Normal University, Wuhan 430079, Hubei, China) |
| |
| Abstract: | CuZnMgAl-hydrotalcites （CuZnMgAl-HT） with different metal molar ratios were synthesized by copreeipitation method. The crystal structure and thermal stability of as-synthesized CuZnMgAl-HT were analyzed by means of X-ray diffraction and thermal analysis. More- over, as-synthesized CuZnMgAl-HT was calcinated, and the adsorption performance of the calcinated product, compound metal oxides, for Pb（ II ） in waste water was examined. The optimum condition for adsorption is suggested as temperature 30 ℃, pH value 6.0, initial lead ion concentration 80 mg/L, CuZnMgAl-HT precursor metal molar ratio of Cu,Zn,Mg,Al was 1 ： 1 ： 4 ： 2, and adsorption time 40 min. Corresponding adsorption rate reaches as much as 95.23% |
| |
| Keywords: | hydrotalcite metallic oxides lead（ II ） adsorption |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
