Benign separation, adsorption, and recovery of rare-earth Yb(III) ions with specific ligand-based composite adsorbent

This study developed a ligand-based composite adsorbent (ComA) for efficient Ytterbium (Yb(III)) adsorption and recovery from waste samples. The organic ligand of 1E,1`E,1``E,1```E (tetrakis(3-carboxysalicylidene)) naphthalene-1,2,5,5-tetramine (TSNT) was synthesized and TSTN was successfully immobilized onto mesoporous silica by a direct immobilization approach. The experiment conditions were optimized based on contact time, solution acidity, initial Pb(II) concentration pH value, and diverse metal salt concentrations. The Europium (Eu(III)) ion was selected from the lanthanides (Ln(III)) series for green and robust adsorption and recovery based on the adsorption, complexation, and selectivity tendency from…

• CU
  Curtin University of Technology

  Award: H-2021-19776
• UO
  University of Dhaka

  Award: HIQI-14-2022
• JA
  Japan Atomic Energy Agency