Abstract
Mesoporous titania and mesoporous silica–titania materials have been successfully synthesized by using organic compound urea as template (or pore-forming agent) via sol–gel reactions of tetrabutyl titanate alone and with tetraethyl orthosilicate, respectively, followed by removing the urea by extraction with water. The pore parameters and morphology were characterized by N 2 adsorption–desorption measurement, powder X-ray diffraction and transmission electron microscopy. The pore diameters of synthesized titania, up to 5.5 nm, were larger than those mesoporous titania materials prepared by other nonsurfactant compounds reported previously by us. The pore diameters of silica–titania materials decreased with the increase of Si/Ti ratio from 1/100 to 2/1 under the same template concentration.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.