Systhesis and Charaterization of Mesoporous Molecular Sieve MCM-41 and TiO_2/MCM-41
Jianwei Li
Abstract
Jianwei Li
Abstract
Using industrial sodium silicate as silicate and surfactant C16H33(CH3)3NBr as structural template, the preparation of mesoporous molecular sieve MCM-41 was accomplished successfully by room temperature crystallization method, and and with tetrabutyltitanate as precursor, TiO2/MCM-41 loaded nanometer complex material was prepared by sol gel method and chemistry liquid deposit process. The samples were characterized by XRD、FT-IR, N2 adsorption/desorption at 77K and SEM. The results show that the end groups(Si-O-) of mesoporous molecular sieve MCM-41 react with Ti and the compound sample has characteristic peaks at 959 cm-1 due to Ti-O-Si formation; nano-TiO2 not only are well distributed the inner wall of mesoporous MCM-41, but also makes MCM-41 remain its ordered channel structure.
A significance statement is not available in the OpenAlex record.
A contribution statement is not available in the OpenAlex record.
Method details are not available in the OpenAlex metadata.
Findings are not separately available in the OpenAlex metadata.
Limitations are not available in the OpenAlex metadata.
Application details are not available in the OpenAlex metadata.
Using industrial sodium silicate as silicate and surfactant C16H33(CH3)3NBr as structural template, the preparation of mesoporous molecular sieve MCM-41 was accomplished successfully by room temperature crystallization method, and and with tetrabutyltitanate as precursor, TiO2/MCM-41 loaded nanometer complex material was prepared by sol gel method and chemistry liquid deposit process. The samples were characterized by XRD、FT-IR, N2 adsorption/desorption at 77K and SEM. The results show that the end groups(Si-O-) of mesoporous molecular sieve MCM-41 react with Ti and the compound sample has characteristic peaks at 959 cm-1 due to Ti-O-Si formation; nano-TiO2 not only are well distributed the inner wall of mesoporous MCM-41, but also makes MCM-41 remain its ordered channel structure.
Key concepts: Molecular sieve, Mesoporous material, MCM-41, Materials science, Sodium silicate, Chemical engineering, Crystallization, Desorption