Adsorption Behaviors of Palladium Ion from Nitric Acid Solution by a Silica-based Hybrid Donor Adsorbent

• WU Hao

  Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University

• OOSAWA Naoki

  Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University

• KUBOTA Masahiko

  Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University

• KIM Seong-Yun

  Department of Quantum Science and Energy Engineering, Graduate School of Engineering, Tohoku University

抄録

The adsorption behaviors of a silica-based hybrid donor adsorbent (TAMIA-EH+1-dodecanol)/SiO₂–P towards Pd(II) were investigated under the effect of the contact time, temperature etc. in simulated high-level liquid waste. The adsorption rates of Pd(II) and Re(VII) were fairly fast and could reach the equilibrium state in only 1 h compared with other co-existing metal ions. The adsorption kinetics of Pd(II) was found to fit well with the pseudo-first order model. Even though with increasing the concentration of HNO₃ above 1 M, the adsorption performance of (TAMIA-EH+1-dodecanol)/SiO₂–P decreased gradually; it still exhibited a better selectivity towards Pd(II) when [HNO₃] > 0.5 M. The adsorption isotherms of Pd(II) and Re(VII) were well-described by the Langmuir isotherm model, while the Freundlich isotherm model was considered to be more suitable for the adsorption of Ru(III), Zr(IV) and Mo(VI). A high temperature of an aqueous solution was not good for the effective recovery of Pd(II). The calculated thermodynamic parameters revealed that the adsorption of Pd(II) was exothermic in nature.

収録刊行物

• Analytical Sciences

  Analytical Sciences 36 (12), 1541-1546, 2020-12-10

  社団法人 日本分析化学会

キーワード

• Adsorption
• palladium
• hybrid donor
• (TAMIA-EH+1-dodecanol)/SiO₂–P adsorbent
• high-level liquid waste

詳細情報

• CRID: 1390849931311713280
• NII論文ID: 130007952870
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.20p253
• ISSN: 13482246
• ISSN: 09106340
• NDL書誌ID: 031193313
• PubMed: 32863335
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I031193313
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.20P253.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.20P253/fulltext.html
• Web Site: https://www.jstage.jst.go.jp/article/analsci/36/12/36_20P253/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
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