Application of Modified Nickel Slag Adsorbent on the Removal of Pb2+ and Cu2+ from Aqueous Solution

被引：0
|
作者：
林亮 [1 ]
于岩 [2 ,3 ]
机构：
[1] Department of Safety Technology and Environmental Engineering,Fujian Chuanzheng Communications College
[2] College of Materials Science and Engineering,Fuzhou University,New Campus
[3] Key Laboratory of Eco-materials Advanced Technology
来源：
Chinese Journal of Structural Chemistry | 2016年 / 35卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Al(OH)3 modified; nickel slag; adsorption; lead ion; copper ion;
D O I：
10.14102/j.cnki.0254-5861.2011-1002
中图分类号：
O647.33 [吸附剂];
学科分类号：
070304 ; 081704 ;
摘要：
Al(OH)3modified nickel slag adsorbent was prepared by sintering technology. The structure of the sample was characterized by BET, XRD, IR, SEM and EDAX. The sample’s adsorption performance of Pb2+and Cu2+from aqueous solution was studied. Results indicated that the adsorbent is a loose and porous mesoporous material. Its surface had mass aluminosilicate, high-activity γ-Al2O3and its p H ranges from 4 to 12 that all have negative charges. The BET surface of the adsorbent is 23.90 m2/g. Furthermore, its surface contains rich oxygenic functional groups, which could not only provide abundant adsorption sites for Pb2+and Cu2+, but also improve the adsorption performance of Pb2+and Cu2+from waste water through the complexation of heavy metal ions. The best p H values selected in the adsorption of Pb2+and Cu2+are 6 and 5, respectively. With the increase of the initial concentration of simulated solution, the adsorption capacities of Pb2+and Cu2+gradually increased but the removal rates showed a downward trend. The competitive adsorption results of Pb2+and Cu2+showed that Pb2+has better preferential adsorption than Cu2+.
引用
收藏
页码：879 / 888
页数：10
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