Preparation and application of chelating polymer-mesoporous carbon composite for copper-ion adsorption

Hyung Ik Lee, Yongju Jung, Seok Kim, Jeong Ah Yoon, Jin Hoe Kim, Jae Sik Hwang, Myung Hee Yun, Jei Won Yeon, Chang Seop Hong, Ji Man Kim

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

A mesoporous carbon material, CMK-1 was successfully functionalized with carboxymethylated polyethyleneimine (CMPEI) by a simple adsorption method. The physicochemical properties of the polymer-carbon composite (denoted as CMPEI/CMK-1) were investigated by X-ray diffraction, N2 adsorption-desorption and X-ray photoelectron spectroscopy (XPS). The adsorption behaviors of Cu(II) ion on the CMK-1 and CMPEI/CMK-1 materials were examined under the batch-type experimental conditions. The CMPEI/CMK-1 material showed a typical Langmuir isotherm with a 10-fold increase in adsorption capacity, compared to that of CMK-1. In the case of 0.02 mM Cu(II) solution, the copper ions were completely removed by utilizing the CMPEI/CMK-1 material both at pH values of 3 and 5. The CMPEI/CMK-1 material also exhibited a remarkably high distribution coefficient value (Kd = 2.75 × 105). The results from XPS depth profiles before and after the copper-ion adsorption indicated that the CMPEI and the adsorbed Cu(II) ions were uniformly distributed within the CMK-1 particles.

Original languageEnglish
Pages (from-to)1043-1049
Number of pages7
JournalCarbon
Volume47
Issue number4
DOIs
Publication statusPublished - 2009 Apr 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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    Lee, H. I., Jung, Y., Kim, S., Yoon, J. A., Kim, J. H., Hwang, J. S., Yun, M. H., Yeon, J. W., Hong, C. S., & Kim, J. M. (2009). Preparation and application of chelating polymer-mesoporous carbon composite for copper-ion adsorption. Carbon, 47(4), 1043-1049. https://doi.org/10.1016/j.carbon.2008.12.024