Author/Authors :
Zarezadeh-Mehrizi, Mansoureh Polymerization Engineering Department - Iran Polymer and Petrochemical Institute (IPPI), Tehran , Karimi, Majid Polymerization Engineering Department - Iran Polymer and Petrochemical Institute (IPPI), Tehran , Kalantari khoramdareh, Zahra Polymerization Engineering Department - Iran Polymer and Petrochemical Institute (IPPI), Tehran , Qomi, Mahnaz Department of medicinal chemistry - faculty of pharmaceutical chemistry - pharmaceutical sciences branch - Islamic Azad university, Tehran
Abstract :
Polyacrylic acid/ octavinyl polyhedral oligomeric silsesquioxane, nanocomposite hydrogel
with 3-D network was synthesized via radical polymerization. Octavinyl polyhedral oligomeric
silsesquioxane was used as crosslinker and nanofiller simultaneously in the preparation of the
hydrogel. Hydrogel adsorption performance was determined by adsorption of methylene blue.
The adsorption capacity was evaluated under the effects of dye concentration, adsorption
contact time and medium pH. The experimental data fitted a pseudo-second-order model and
isotherm indicated that the data were agreed with the Langmuir model. The high adsorption
capacity (Qmax=1000 (mg/g)) shows the better efficiency of the adsorbent and indicates this
hydrogel is a good candidate as the adsorbent of cationic dye and ions.
Keywords :
Organic/inorganic nanocomposite , Hydrogel , Polyacrylic acid , Polyhedral oligomeric silsesquioxane (POSS)
