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Adsorption of metal ions on lignin
Guo, Xueyan; Zhang, Shuzhen; Shan, Xiao-Quan
2008-02-28
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
Volume151Issue:1Pages:134-142
AbstractThis study investigated the adsorption of the heavy metal ions Pb(II), Cu(II), Cd(II), Zn(II), and Ni(II) on a lignin isolated from black liquor, a waste product of the paper industry. Lignin has affinity with metal ions in the following order: Pb(II) > Cu(II) > Cd(II) > Zn(II) > Ni(II). The adsorption kinetic data can be described well with a pseudosecond-order model and the equilibrium data can be fitted well to the Langmuir isotherm. Metal ion adsorption was strongly dependent on pH and ionic strength. Surface complexation modelling was performed to elucidate the adsorption mechanism involved. This shows that lignin surfaces contain two main types of acid sites attributed to carboxylic- and phenolic-type surface groups and the phenolic sites have a higher affinity for metal ions than the carboxylic sites. (C) 2007 Elsevier B.V. All rights reserved.
Department环境化学与生态毒理学国家重点实验室
KeywordLignin Surface Complexation Model Heavy Metal Ions Adsorption
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Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/21909
Collection环境化学与生态毒理学国家重点实验室
Recommended Citation
GB/T 7714
Guo, Xueyan,Zhang, Shuzhen,Shan, Xiao-Quan. Adsorption of metal ions on lignin[J]. JOURNAL OF HAZARDOUS MATERIALS,2008,151(1):134-142.
APA Guo, Xueyan,Zhang, Shuzhen,&Shan, Xiao-Quan.(2008).Adsorption of metal ions on lignin.JOURNAL OF HAZARDOUS MATERIALS,151(1),134-142.
MLA Guo, Xueyan,et al."Adsorption of metal ions on lignin".JOURNAL OF HAZARDOUS MATERIALS 151.1(2008):134-142.
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