Abstract
TiO2–C hybrid aerogels were obtained by a one-pot sol-gel method, followed by supercritical drying and pyrolysis, using resorcinol (R) and furfural (F) as carbon sources, and TiCl4 or Ti(OBu)4 as the TiO2 precursor. The hybrid aerogels were characterized by XRD, HR-TEM and N2 adsorption. The photocatalytic activity of the samples was evaluated based on the conversion of methylene blue (MB) under UV light. Results showed that the type of precursor and the mass ratio of TiO2 to carbon influenced the surface area and MB conversion. The TiO2–C hybrid aerogels using TiCl4 as TiO2 precursor had a higher surface area and a better photocatalytic activity than those using Ti(OBu)4 as precursor under otherwise identical conditions. The best sample was obtained when TiCl4 was used and the TiO2 content was 40%. This had the largest average pore size of 7.8 nm, the highest mesopore volume of 0.40 cm3/g and the highest MB conversion of 99.6% under an ultraviolet exposure for 180 min.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
