An Investigation on the Adsorption Behavior of a Mesoporous Silica Synthesized by a Surfactant-assisted Method in an Acidic Media

Salehtash, F.; Banna Motejadded Emrooz, H.; Jalaly, M.

doi:10.22068/ijmse.15.2.48

Volume 15, Issue 2 (June 2018) IJMSE 2018, 15(2): 48-56 | Back to browse issues page

‎ 10.22068/ijmse.15.2.48

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Salehtash F, Banna Motejadded Emrooz H, Jalaly M. An Investigation on the Adsorption Behavior of a Mesoporous Silica Synthesized by a Surfactant-assisted Method in an Acidic Media. IJMSE 2018; 15 (2) :48-56
URL: http://ijmse.iust.ac.ir/article-1-1035-en.html

An Investigation on the Adsorption Behavior of a Mesoporous Silica Synthesized by a Surfactant-assisted Method in an Acidic Media

F. Salehtash

, H. Banna Motejadded Emrooz

, M. Jalaly

Abstract: (19510 Views)

Mesoporous SiO₂ nanopowder was synthesized under an acidic condition by a sol-gel method using various amounts of cetyltrimethyl ammonium bromide (CTAB) as structure directing agent. The samples were investigated with XRD, SEM, FTIR, TEM and N₂ absorption-desorption analysis. Also, the incremental effect of surfactant were examined. The results obtained from the analysis suggested that an increase in the amount of surfactant resulted in increasing specific surface area, pore size and pore volume, of the synthesized particles up to 549 m².g^-1, 17.3 nm, and 2 cm³.g^-1, respectively. Absorption behavior of the mesoporous silica was investigated for degradation of methylene blue pigments (MB) in aqueous solutions. The samples SC0, SC0.5 and SC1 showed the maximum absorption capacities of 333, 454 and 526 mg/g, respectively

Keywords: Mesoporous silica, Sol-gel, Absorption, Methylene blue.