Karim, A. H. and Abdul Jalil, Aishah and Triwahyono, Sugeng and Sidik, S. M. and Kamarudin, N. H. N. and Jusoh, R. and Jusoh, N. W. C. and Hameedc, B. H. (2012) Amino modified mesostructured silica nanoparticles for efficient adsorption of methylene blue. Journal of Colloid and Interface Science, 386 (1). pp. 307-314. ISSN 0021-9797
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Official URL: http://dx.doi.org/10.1016/j.jcis.2012.07.043
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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Mesostructured silica nanoparticles, Methylene blue |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering |
| ID Code: | 32893 |
| Deposited By: | Fazli Masari |
| Deposited On: | 23 Jul 2013 08:32 |
| Last Modified: | 30 Nov 2018 06:31 |
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