Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 386, Issue -, Pages 307-314Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2012.07.043
Keywords
Mesostructured silica nanoparticles; Adsorption; Methylene blue; Isotherm; Kinetic
Categories
Funding
- Universiti Teknologi Malaysia [01H95]
- Ministry of Higher. Education Malaysia
Ask authors/readers for more resources
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 (0.1-0.5 g L-1), and initial MB concentration (5-60 mg L-1). The best conditions were achieved at pH 7 when using 0.1 g L-1 MSNAP and 60 mg L-1MB to give a maximum monolayer adsorption capacity of 500.1 mg g(-1) at 303 K. 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. (C) 2012 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available