Separations: Materials, Devices, and Processes

Preparation of a macroporous silica–pyridine multidentate material and its adsorption behavior for some typical elements

  1. Anyun Zhang1,*,
  2. Wenjing Xue1,
  3. Zhifang Chai1,2

Article first published online: 8 FEB 2012

DOI: 10.1002/aic.13741

Issue

AIChE Journal

AIChE Journal

Volume 58, Issue 11, pages 3517–3525, November 2012

Additional Information

How to Cite

Zhang, A., Xue, W. and Chai, Z. (2012), Preparation of a macroporous silica–pyridine multidentate material and its adsorption behavior for some typical elements. AIChE J., 58: 3517–3525. doi: 10.1002/aic.13741

Author Information

  1. 1

    Dept. of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou 310027, P.R. China

  2. 2

    Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China

*Dept. of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou 310027, P.R. China

Publication History

  1. Issue published online: 5 OCT 2012
  2. Article first published online: 8 FEB 2012
  3. Accepted manuscript online: 12 JAN 2012 11:45AM EST
  4. Manuscript Revised: 26 DEC 2011
  5. Manuscript Received: 10 OCT 2011

Funded by

  • National Natural Science Foundation of China. Grant Numbers: 20871103, 91126021
  • Zhejiang Provincial Natural Science Foundation of China. Grant Number: Y4110002
  • Specialized Research Fund for the Doctoral Program of Higher Education. Grant Number: 20090101110043

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Keywords:

  • absorption;
  • separation techniques;
  • materials;
  • chromatography

Abstract

A new macroporous silica-based-polymer (SiO2-P) soft ligand composite material, 2,6-bis(5,6-di(iso-butyl)-1,2,4-triazine-3-yl)pyridine (BDIBTP/SiO2-P), was synthesized by impregnation and immobilization of BDIBTP and 1-octanol molecules into the pores of the SiO2-P particles. The impact of some typical alkali metal and alkaline earths Cs(I), Na(I), K(I), Rb(I), Sr(II), and Ba(II) containing in highly active liquid waste (HLW) on the adsorption of Pd(II) onto BDIBTP/SiO2-P was studied. It was performed by examining the effects of contact time and the HNO3 concentration in the range of 0.3–7.0 M. BDIBTP/SiO2-P showed strong adsorption ability and high selectivity for Pd(II) over all the tested metals. The chromatographic partitioning of Pd(II) from a simulated HLW solution was conducted by BDIBTP/SiO2-P packed column. Pd(II) was effectively eluted with 0.2 M thiourea–0.1 M HNO3. The others showed no adverse impact on separation of Pd(II). The results are beneficial to partitioning of minor actinides and Pd(II) together from HLW by BDIBTP/SiO2-P in the MPS process developed. © 2012 American Institute of Chemical Engineers AIChE J, 2012

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