SYNTHESIS AND CHARACTERISTICS OF A CHELATING RESIN AS AN EXTRACTANT AND CHROMOGENIC REAGENT OF HEAVY METAL IONS IN SOLID PHASE EXTRACTION

Tian-lin Zhang Hui-min Ma Jia-jia Wang Cai-yan Zhu Bing-bing Wang

Citation:  Tian-lin Zhang, Hui-min Ma, Jia-jia Wang, Cai-yan Zhu, Bing-bing Wang. SYNTHESIS AND CHARACTERISTICS OF A CHELATING RESIN AS AN EXTRACTANT AND CHROMOGENIC REAGENT OF HEAVY METAL IONS IN SOLID PHASE EXTRACTION[J]. Chinese Journal of Polymer Science, 2013, 31(8): 1108-1116. doi: 10.1007/s10118-013-1303-y shu

SYNTHESIS AND CHARACTERISTICS OF A CHELATING RESIN AS AN EXTRACTANT AND CHROMOGENIC REAGENT OF HEAVY METAL IONS IN SOLID PHASE EXTRACTION

    通讯作者: Tian-lin Zhang,
  • 基金项目:

    This work was supported by the National Natural Science Foundation of China (No. 50873042) and the Natural Science Foundation for Colleges and Universities of Jiangsu Province (No. 11KJA430008).

摘要: A new chelating resin (CPS-DMA-SABA) was synthesized with the chloromethylated cross-linked polystyrene porous beads (CPS) as raw materials, which were bonded with salicylidene-o-aminobenzoic acid (SABA) on the surface via a quaternary ammonium unit as a linker. The results showed that CPS-DMA-SABA would easily change into a zwitterionic chelating resin (CPS-DMA-SABZ) when washed with distilled water. CPS-DMA-SABA was characterized by elemental analysis, infrared spectra and thermo-gravimetric analysis. The ion sorption capacities of CPS-DMA-SABA were found to be 1916 g/g for Zn2+ with pH at 4.5, 1620 g/g for Cu2+ with pH at 6.2, 1291 g/g for Ni2+ with pH at 6.6 and 780 g/g for Cr3+ with pH at 5.5, respectively. The experiments showed CPS-DMA-SABA also changed its color when meeting with the metal ion in the aqueous solution. As a consequence, CPS-DMA-SABA can not only be used as a solid phase extractant but also an indicator for confirming the heavy metal ion in solutions.

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  • 发布日期:  2013-08-05
  • 收稿日期:  2012-09-17
  • 修回日期:  2012-11-13
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