Adsorption Efficiency, Adsorption Isotherms and Kinetic Study for Methylene Blue Removal in Aqueous Solution of Thiol-Functionalized Mesoporous Silica Nanospheres

Main Article Content

Romteera Chueachot
Kewalee Khankam
Atcharaphan Lakathok
Suwatchai Jarussophon
Ronariddh Nakhowong

Abstract

Thiol-functionalized mesoporous silica nanospheres material was synthesized by co-condensation method under biphasic system. Structural characterization comfirmed the mesoporous structure and the content of adsorbents by transmission electron microscopy, N2 adsorption-desorption and Fourier transform inferred spectroscopy. The adsorbent were nanosphere with particle diameter lower than 50 nm. A batch adsorption study was carried out with variable pH, adsorption time, adsorbent dose, shaking rate, temperature and adsorbate concentration. Methylene blue could be removed by 0.05 g of MSN and MSN-SH at pH 10 and 30 min of adsorption time. The adsorption process followed pseudo-second-order kinetics. The experimental adsorption isotherm was found to be best fitted with the Langmuir model, which implied that the adsorption of MB as a monolayer.

Article Details

How to Cite
[1]
R. Chueachot, K. Khankam, A. Lakathok, S. Jarussophon, and R. Nakhowong, “Adsorption Efficiency, Adsorption Isotherms and Kinetic Study for Methylene Blue Removal in Aqueous Solution of Thiol-Functionalized Mesoporous Silica Nanospheres”, RMUTI Journal, vol. 12, no. 3, pp. 34–47, Jul. 2019.
Section
Research article
Author Biography

Suwatchai Jarussophon

National Nanotechnology Center, National Science and Technology Development Agency
111 Thailand Science Park, Pathum Thani

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