TY - JOUR
T1 - Ti-MCM-41 synthesized from colloidal silica and titanium trichloride
T2 - Synthesis, characterization, and catalysis
AU - Yu, J.
AU - Feng, Z.
AU - Xu, L.
AU - Li, M.
AU - Xin, Q.
AU - Liu, Z.
AU - Li, C.
PY - 2001
Y1 - 2001
N2 - Titanium-containing mesoporous molecular sieve Ti-MCM-41 has been synthesized using colloidal silica as the silicon source and TiCl3 solution as the titanium source and was characterized by X-ray diffraction, N2 adsorption, UV-vis, and UV-Raman spectroscopies. The formation of anatase TiO2 can be avoided during the synthesis and the crystallization of the molecular sieve because of the relatively low hydrolysis rate of an inorganic TiCl3 solution. The characterization results confirm that most Ti4+ ions are isolated and tetrahedrally coordinated in the framework of MCM-41. Different auxiliary templates, tetramethylammonium hydroxide (TMAOH), tetraethylammonium hydroxide (TEAOH), tetrabutylammonium hydroxide, and NH3·H2O were used to synthesize the Ti-MCM-41 molecular sieve. Among them, TMAOH and TEAOH were found to be the most effective auxiliary templates to improve the long-ranged order of the molecular sieves.
AB - Titanium-containing mesoporous molecular sieve Ti-MCM-41 has been synthesized using colloidal silica as the silicon source and TiCl3 solution as the titanium source and was characterized by X-ray diffraction, N2 adsorption, UV-vis, and UV-Raman spectroscopies. The formation of anatase TiO2 can be avoided during the synthesis and the crystallization of the molecular sieve because of the relatively low hydrolysis rate of an inorganic TiCl3 solution. The characterization results confirm that most Ti4+ ions are isolated and tetrahedrally coordinated in the framework of MCM-41. Different auxiliary templates, tetramethylammonium hydroxide (TMAOH), tetraethylammonium hydroxide (TEAOH), tetrabutylammonium hydroxide, and NH3·H2O were used to synthesize the Ti-MCM-41 molecular sieve. Among them, TMAOH and TEAOH were found to be the most effective auxiliary templates to improve the long-ranged order of the molecular sieves.
UR - http://www.scopus.com/inward/record.url?scp=0034846716&partnerID=8YFLogxK
U2 - 10.1021/cm000758h
DO - 10.1021/cm000758h
M3 - Article
AN - SCOPUS:0034846716
SN - 0897-4756
VL - 13
SP - 994
EP - 998
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 3
ER -