Functionalized polyethylene fibers for the selective capture of palladium ions from aqueous solution
Pang, LJ; Li, R; Hu, JT; Zhang, LJ; Zhang, MX; Yang, CG; Wu, GZ
2018
发表期刊APPLIED SURFACE SCIENCE
ISSN0169-4332
卷号433页码:116-124
文章类型期刊论文
摘要An innovative ultrahigh molecular weight polyethylene (UHMWPE) fibrous adsorbent was successfully synthesized via radiation grafting and applied to the selective capture of palladium ions from dilute aqueous solutions. The influence of the pH, initial Pd(II) concentration, and temperature on the adsorption performance was examined in a batch adsorption experiment. Pd K-edge extended X-ray absorption fine structure (EXAFS) spectra indicated that Pd(II) was immobilized on the adsorbent surface via a ligand exchange reaction that formed a stable UHMWPE-PMDA-Pd complex. Although the concentrations of coexisting ions (Cu(II), Zn(II), Cr(VI), Fe(III), and Ni(II)) in the solution were much higher than that of Pd(II), the adsorption capacity for Pd(II) of the as-prepared absorbent was significantly greater than that for other metal ions. Kinetic studies showed good correlation with the pseudo-second-order model. The maximum capacity for Pd(II) adsorption was approximately 221.8 mg.g(-1) at 298 K. The adsorption behavior conformed to the Langmuir isotherm model. Thermodynamic studies revealed that the adsorption of Pd(II) was a feasible, spontaneous, and endothermic process. (C) 2017 Elsevier B.V. All rights reserved.
关键词Linked Chitosan Resin Noble-metal Ions Chelating Fiber Adsorption Characteristics Pd(Ii) Adsorption Mechanism Recovery Waste Preconcentration Extraction
DOI10.1016/j.apsusc.2017.10.041
收录类别SCI
语种英语
WOS记录号WOS:000418883800015
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29029
专题中科院上海应用物理研究所2011-2018年
作者单位1.Pang, LJ
2.Li, R
3.Hu, JT
4.Zhang, LJ
5.Zhang, MX
6.Yang, CG
7.Wu, GZ
推荐引用方式
GB/T 7714
Pang, LJ,Li, R,Hu, JT,et al. Functionalized polyethylene fibers for the selective capture of palladium ions from aqueous solution[J]. APPLIED SURFACE SCIENCE,2018,433:116-124.
APA Pang, LJ.,Li, R.,Hu, JT.,Zhang, LJ.,Zhang, MX.,...&Wu, GZ.(2018).Functionalized polyethylene fibers for the selective capture of palladium ions from aqueous solution.APPLIED SURFACE SCIENCE,433,116-124.
MLA Pang, LJ,et al."Functionalized polyethylene fibers for the selective capture of palladium ions from aqueous solution".APPLIED SURFACE SCIENCE 433(2018):116-124.
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