Adsorption enhancement of heavy metal ions using chitosan-modified natural zeolite nanocomposite

Y. Yulizar, T. Utari, D. O.B. Apriandanu, R. Utami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This research is to modify the natural zeolite (NZ) with chitosan (chit) as an adsorbent for Pb(II) ion adsorption. Chit-NZ nanocomposite was synthesized using NZ which has been physically and chemically activated and modified with chitosan in nano size to enhance their adsorption activity. The characterization was conducted by Fourier- transform infrared (FTIR) spectroscopy and transmission electron microscope (TEM). According to FT-IR result, there were hydroxyl and amine groups in Chit-NZ nanocomposite at 3645 and 3290 cm-1, respectively. The formed Chit-NZ nanocomposite from TEM image has particle size approximately 40 nm. Chit-NZ nanocomposite and NZ as a comparison was observed for Pb(II) adsorption using atomic absorption spectrometry (AAS). According to result, the adsorption percentage of Pb(II) on NZ and Chit-NZ nanocomposite were 43.83 and 49.91 %, respectively at pH of 6.0 and initial Pb(II) concentration of 1500 ppm. The Pb(II) adsorption percentage using Chit-NZ nanocomposite was 99.68 % with optimum conditions at pH of 6.0, Pb(II) concentration of 300 ppm, and contact time of 30 min. The kinetic study showed that Pb(II) adsorption followed a pseudo second-order kinetic model with a reaction rate constant, k of 9.74 × 10-3 (g/mmol)-1min-1.

Original languageEnglish
Title of host publicationProceedings of the 5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019
EditorsTerry Mart, Djoko Triyono, Tribidasari Anggraningrum Ivandini
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735420014
DOIs
Publication statusPublished - 1 Jun 2020
Event5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019 - Depok, Indonesia
Duration: 9 Jul 201910 Jul 2019

Publication series

NameAIP Conference Proceedings
Volume2242
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019
CountryIndonesia
CityDepok
Period9/07/1910/07/19

Keywords

  • adsorption
  • chitosan
  • Natural zeolite
  • Pb(II)
  • zeolite modification

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