SYNTHESIS OF MCM–41 MATERIAL USING RICE HUSK ASH AS A SOURCE OF SILICON
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1.
Duc HV. SYNTHESIS OF MCM–41 MATERIAL USING RICE HUSK ASH AS A SOURCE OF SILICON. hueuni-jns [Internet]. 2017Oct.3 [cited 2024Oct.31];126(1C):37-46. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/4456

Abstract

In the present paper, a synthesis of MCM–41 mesoporous material with a sodium silicate solution prepared from rice husk ash as a silica source using the hydrothermal process is demonstrated. The influence of synthesis conditions on the material structure such as cetyltetramethylammonium bromide (CTAB) concentration, SiO2/CTAB molar ratio, stirring time, and aging time was investigated. The materials were characterized using XRD, FT–IR, and N2 adsorption-desorption isotherm measurement. The results show that the material possesses highly ordered hexagonal mesostructure with uniform mesopore size distribution in a large range of CTAB concentration (the mass fraction is from 0.0133 to 0.0481) and the SiO2/CTAB molar ratio (4–15). The sample with the molar ratio of CTAB: SiO2: H2O = 1: 6: 1000 has a high surface area (1074 m2/g) and large pore diameter (33.5 Å).

https://doi.org/10.26459/hueuni-jns.v126i1C.4456
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