Abstract
TiO2 microcrystals exposing {001} facets are of potential applications in photocatalysis; however, the photocatalytic activity is limited by micrometer sizes. Herein, we report a compositing tactic to compensate the photocatalytic activity through surface decorations with few-layer TiO2 nanobelts. Hydrothermally synthesized anatase TiO2 microcrystals exposing (001) facets were immersed in a precursor solution at 60 °C, on which hydrogen titanate nanobelts precipitated vertically on the surface. A subsequent calcination in air at 400 °C was followed to decompose titanate nanobelts to anatase TiO2 with the nanostructure maintained. The coverage of TiO2 nanobelts can be controlled by varying the immersing duration. When utilized to assist photodegradation of phenol in water under UV light illumination, the composited TiO2 exhibited a reaction rate constant 2.3 times that of the pristine TiO2 microcrystals. A synergetic effect arising from the microcrystals and surface decorated nanobelts is believed to contribute to the enhanced photocatalytic activity.
Published Version
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.