Title of article :
An Investigation on the Adsorption Behavior of a Mesoporous Silica Synthesized by a Surfactant-Assisted Method in an Acidic Media
Author/Authors :
Salebtash, F Nanotedmology Department - School of New Technologies - Iran University of Science & Technology, Tehran , Danna Motejadded Emrooz, H Nanotedmology Department - School of New Technologies - Iran University of Science & Technology, Tehran , Jalaly, M Nanotedmology Department - School of New Technologies - Iran University of Science & Technology, Tehran
Abstract :
Mesoporous Si01 nanopowder was synthesized under an acidic condition through a sol-gel method by use of cetyltrimethyl ammonium bromide (CTAB) as the structure directing agent. Also, the effects of the surfactant content (0, 0.5, and 1 g) were examined. Thesamples were investigated using the XRD, SEM, FTIR, TEM and N2 adsorption desorption analyses. The results revealed that the sample containing 1 g CTAB surfactant had the highest specific surface area of- 549 m2.g-1, and showed the lowest values of 4.1 nm and 0.56 cm3.g-1for pore size and pore volume, respectively. Adsorption behavior of the mesoporous silica was investigated for the degradation of methylene blue
pigments (MB) in aqueous solutions. The samples containing 0, 0.5 and 1 g CTAB exhibited the maximum adsorption capacities of 333, 454 and 526 mg/g, respectively.
Keywords :
Mesoporous silica , Sol-gel , Adsorption , Methylene blue
Journal title :
Astroparticle Physics
