Adsorption behaviors of iodide anion on silver loaded macroporous silicas

Hao Wu, Yan Wu, Zi Chen, Yue Zhou Wei

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A macroporous silica-based silver loaded adsorbent was synthesized by grafting the silver complexes of thiourea (Ag(tu)3NO3) into a silica-based copolymer support (SiO2-P). The adsorbent was used to uptake iodide anions (I-) by batch and column techniques. The kinetic and saturated adsorption experiments were carried out by varying the shaking times and initial concentration of I-. Experimental results shown that the kinetic adsorption of I- was controlled by a pseudo second order model and the saturated adsorption of I- was controlled by the chemisorption mechanism, which followed a Langmuir adsorption equation. The breakthrough curve of I- had a S-shaped profile. The column efficiency was estimated to be over 90%.

Original languageEnglish
Article number030301
JournalNuclear Science and Techniques/Hewuli
Issue number3
Publication statusPublished - 2015 Jun 15


  • Grafting
  • Iodide anion
  • Macroporous silica-based support
  • Radioactive contaminated wastewater
  • Silver complexes of thiourea


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