Influence of crystalization temperature on morphological properties of dibutylphtalate alumosilicate adsorbents

Abstract

Alumosilicates have advantages over other adosrbents because they have high adsorption capacity and high selectivity. Due to this fact, the paper investigates the synthesis and characterization of the aluminosilicate materialused as a potential adsorbent of dibutyl phthalate (DBP) The following analyses were conducted on the samples synthesized at various crystallization temperatures (70, 80 and 90° C): the adsorption of DBP, crystallinity (XRD), medium particle diameter (Ds50%) and scanning electron microscopy (SEM) It has been found that the aluminosilicate species obtained at temperatures of 80 and 90 C have good adsorbent properties for DBP The medium particle diameter varied depending on the crystallization temperature according to the principles of autocatalytic nucleation and the ‘memory effect’ of the gel. At the temperature of 90°C, crystallinity decreases significantly (37.87%) whereas dibutylphthalate adsorption increases due to the increase in the content of other nonzeolite species.