Preparation of SBA-15-PAMAM as a Nano adsorbent for Acid dys removal from aqueous media: kindetcs and thermodynamics studies

Removal of acid dyes from aqueous media has been effectively regarded and for this aim various methods have been tested. So in this study a new study a new physical modification of mesoporous silica SBA15 with PAMAM dendirmer as a new modifier and this application for the removal of acid red 266 AR266 from aqueous media has been verfied. SBA-15, SBA-15-CI and SBA-15-PAMAM were synthesized and then were characteized by FTIR. Also the surface morphology of SBA-15 was recognizaed by tranmission electron microscopy TEM.also important parameters for effective adsorption of acid dye were studied. pseudo -first order and pseudo second order kinetics models were analyzed to characterizing of adsorption rate. the calculated thermodynamic parmeters represented the exothermic and spontaneous nature of the adsorption process. the results repressented, SBA-15-Den can be applied as an affective nano adsorbent for removal of acid dye from aqueous media.

Keywords:

SBA-15-PAMAM , Nanoadsorbent , acid dye , kinethic , Thermodynamic