Adsorption of lead(II) from aqueous solution by two modified porous chelating resins based on (3-mercaptopropyl) trimethoxysilane

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• 作者：Zhen-Zheng Wang ; Hong-Dong Duan ; Xia Meng ; Yi-Fan Zhang…
• 关键词：thiol ; based chelating resins ; adsorption ; lead(II) ; modification
• 刊名：Macromolecular Research
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：24
• 期：9
• 页码：757-766
• 全文大小：1,161 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Polymer Sciences
  Characterization and Evaluation of Materials
  Soft and Granular Matter, Complex Fluids and Microfluidics
  Nanochemistry
  Nanotec
  
• 出版者：The Polymer Society of Korea, co-published with Springer
• ISSN：2092-7673
• 卷排序：24

文摘

Two novel types of thiol-based chelating resins were fabricated by modifying poly(2-hydroxyethyl methacrylate-co-glycerol dimethacrylate) (P(HEMA-GDMA)) and poly(2-hydroxyethyl methacrylate-co-ethylene glycol dimethacrylate) (P(HEMA-EGDMA)) with (3-mercaptopropyl) trimethoxysilane(MPS), and used to adsorb lead(II) from aqueous solution. The effects of initial lead(II) concentrations, solution pH, coexisting ions on adsorption of lead(II) were investigated. After modifying, the product P(HEMA-GDMA)-SH has excellent adsorption capacity (118.56 mg/g) for lead(II) at initial lead(II) concentration of 200 mg/L. The resins could easily be regenerated and were reused 6 times without significant loss of adsorption capacity. Besides, the presence of coexisting ions did not markedly influence the adsorption capacities of the resins. The results indicate that the functional thiol-based resins are efficient adsorbents for the removal of toxic lead(II) ions in water treatment.Keywordsthiol-based chelating resinsadsorptionlead(II)modificationElectronic Supplementary MaterialSupplementary material is available for this article at 10.1007/s13233-016-4116-3 and is accessible for authorized users.