Amino modified mesostructured silica nanoparticles for efficient adsorption of methylene blue

A. H. Karim, A. A. Jalil, S. Triwahyono, S. M. Sidik, Kamarudin Nur Hidayatul Nazirah, R. Jusoh, N. W C Jusoh, B. H. Hameed

Research output: Contribution to journalArticle

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Abstract

In this work, mesostructured silica nanoparticles (MSNAP) with high adsorptivity were prepared by a modification with 3-aminopropyl triethoxysilane (APTES) as a pore expander. The performance of the MSNAP was tested by the adsorption of MB in a batch system under varying pH (2-11), adsorbent dosage (0.1-0.5gL-1), and initial MB concentration (5-60mgL-1). The best conditions were achieved at pH 7 when using 0.1gL-1 MSNAP and 60mgL-1MB to give a maximum monolayer adsorption capacity of 500.1mgg-1 at 303K. The equilibrium data were evaluated using the Langmuir, Freundlich, Temkin, and Harkins-Jura isotherms and fit well to the Freundlich isotherm model. The adsorption kinetics was best described by the pseudo-second order model. The results indicate the potential for a new use of mesostructured materials as an effective adsorbent for MB.

Original languageEnglish
Pages (from-to)307-314
Number of pages8
JournalJournal of Colloid and Interface Science
Volume386
Issue number1
DOIs
Publication statusPublished - 15 Nov 2012
Externally publishedYes

Fingerprint

Methylene Blue
Silicon Dioxide
Silica
Nanoparticles
Adsorption
Adsorbents
Isotherms
Monolayers
Kinetics

Keywords

  • Adsorption
  • Isotherm
  • Kinetic
  • Mesostructured silica nanoparticles
  • Methylene blue

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Colloid and Surface Chemistry

Cite this

Amino modified mesostructured silica nanoparticles for efficient adsorption of methylene blue. / Karim, A. H.; Jalil, A. A.; Triwahyono, S.; Sidik, S. M.; Nur Hidayatul Nazirah, Kamarudin; Jusoh, R.; Jusoh, N. W C; Hameed, B. H.

In: Journal of Colloid and Interface Science, Vol. 386, No. 1, 15.11.2012, p. 307-314.

Research output: Contribution to journalArticle

Karim, A. H. ; Jalil, A. A. ; Triwahyono, S. ; Sidik, S. M. ; Nur Hidayatul Nazirah, Kamarudin ; Jusoh, R. ; Jusoh, N. W C ; Hameed, B. H. / Amino modified mesostructured silica nanoparticles for efficient adsorption of methylene blue. In: Journal of Colloid and Interface Science. 2012 ; Vol. 386, No. 1. pp. 307-314.
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