Synthesis and characterization of Ba/MCM-41

Authors

EMİNE KAYA
NURAY OKTAR
GÜRKAN KARAKAŞ
KIRALİ MÜRTEZAOĞLU

Abstract

Mesoporous Ba/MCM-41 type materials (Ba/MCM-41) with high Ba/Si molar ratios between 0.025 and 0.1 were synthesized by direct hydrothermal synthesis. The samples were characterized by XRD, nitrogen adsorption, TGA-DTA, FTIR, SEM-EDS, and TEM techniques. BET surface areas of samples with various Ba loadings were found between 722 and 931 m^2/g with 28 Å average pore size, which is consistent with the pore size of 30 Å for pure MCM-41 samples synthesized by the same procedure. The crystal structures of synthesized MCM-41 and Ba/MCM-41 were confirmed by XRD analysis. Among the investigated Ba/MCM-41 samples, the formation of barium oxide and barium nitrate species besides silicates was also observed in the high angle region XRD patterns.

DOI

10.3906/kim-1003-2

Keywords

MCM-41, Ba, hydrothermal synthesis

First Page

935

Last Page

944

Recommended Citation

KAYA, EMİNE; OKTAR, NURAY; KARAKAŞ, GÜRKAN; and MÜRTEZAOĞLU, KIRALİ (2010) "Synthesis and characterization of Ba/MCM-41," Turkish Journal of Chemistry: Vol. 34: No. 6, Article 10. https://doi.org/10.3906/kim-1003-2
Available at: https://journals.tubitak.gov.tr/chem/vol34/iss6/10