Open AccessA STUDY ON SYNTHESIS OF MCM-41 MESOPOROUS MATERIAL WITH SOURCE OF SODIUM SILICATE SOLUTION FROM RICE HUSK ASH
Author(s) -
Hoàng Văn Đức
Publication year - 2017
Publication title -
tạp chí khoa học đại học huế: khoa học tự nhiên/tạp chí khoa học đại học huế: khoa học tự nhiên (online)
Language(s) - English
Resource type - Journals
eISSN - 2615-9678
pISSN - 1859-1388
DOI - 10.26459/hueuni-jns.v126i1c.4456
Subject(s) - husk , sodium silicate , nuclear chemistry , mesoporous material , hydrothermal circulation , desorption , molar ratio , sodium , adsorption , hydrothermal synthesis , chemistry , silicate , mineralogy , materials science , chemical engineering , metallurgy , organic chemistry , catalysis , botany , engineering , biology
In the present paper, a synthesis of MCM-41 mesoporous material with the sodium silicate solution prepared from the rice husk ash as a silica source by the hydrothermal process was demonstrated. The influence of synthesized conditions such as CTAB concentration, SiO 2 /CTAB molar ratio, stirring time and hydrothermal time were investigated. The samples were characterized by XRD, FT–IR and N 2 adsorption–desorption measurement. The obtained results showed that the samples possessed highly ordered hexagonal mesostructure with uniform mesopore size distribution in a large range of CTAB concentration (1,98-4,81% mass) and the SiO 2 /CTAB molar ratio (4-15). The sample had a high surface area (1071 m 2 /g) and large pore diameter (33,5 Å) with the molar ratio of CTAB: SiO 2 : H 2 O = 1: 6: 1000. Keywords: MCM-41, sodium silicate solution, rice husk ash