Title of article
Synthesize and characterization of Aminosilane functionalized MCM-41 for removal of anionic dye: Kinetic and thermodynamic study
Author/Authors
-، - نويسنده Department of Textile Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran Torabinejad, Ali , -، - نويسنده Department of Textile Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran Nasirizadeh, Navid , -، - نويسنده Department of Textile Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran Yazdanshenas, Mohammad Esmail , -، - نويسنده Department of Textile Engineering, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran Tayebi, Habib-Allah
Issue Information
دوماهنامه با شماره پیاپی سال 2016
Pages
13
From page
295
To page
307
Abstract
-
Abstract
In this study, removal of Acid blue 62 from aqueous solution by mesoporous silicate MCM-41 modified by Aminopropyltriethoxysilane (APTES) composite was studied. Properties of synthesized composite were analyzed and confirmed by SEM, EDX and FTIR. Results show that Langmuir adsorption isotherm has the best compatibility with the results of experiments. Kinetic analysis using pseudo-first-order model, pseudo-second-order and the intra-particle diffusion model was carried out. Results also confirmed that adsorption process is compatible with the pseudo-second-order kinetic model. Thermodynamic parameters such as Gibbs free energy changes (ΔGo), Enthalpy changes (ΔHo) and Entropy changes (ΔSo) were calculated. Negative value of ΔGo and positive value of ΔHo show that adsorption of Acid blue 62 on aminated nanocomposite is a spontaneous process also endothermic.
Journal title
International Journal of Nano Dimension (IJND)
Serial Year
2016
Journal title
International Journal of Nano Dimension (IJND)
Record number
2396010
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