Abstract
The extensive light absorption, enhanced separation of photoinduced carriers and convenience of recycling are crucial for the practical application of WO3 photocatalyst in the dye degradation and the antibiosis activity. Hence, in this work, we synthesize WO3/Fe2O3 composite film on FTO conductive substrate through hydrothermal method. The higher degradation rate for methylene blue (MB) is achieved by WO3/Fe2O3 composite film, and the value of C/C0 is 0.28 which is lower than that of 0.58 for bare WO3 with the irradiation for 4 h. Moreover, the sterilization rate of 28.99% is achieved for WO3-based film with the deposition of Fe2O3 for 3 h. The deeper measurements indicate that the enhanced photocatalytic performances are attributed to the expand light absorption, improved transfer kinetics and separation efficiency of photoinduced carriers with the formation of heterojunction. This work establishes the effective template for WO3-based film with the enhanced photocatalytic prosperities for dye degradation and antibiosis.
Highlights
Introduction pteThe increasingly serious environmental problems and energy crisis have aroused the concern of scientists all over the world due to over application of fossil fuels and uncontrolled discharge of industrial wastewater [1,2,3]
All 2D WO3 nanoplates grow almost vertically on the FTO substrate which provides direct us transmission channel for photogenerated electrons, that is, photoinduced electrons are quickly transmitted to FTO and the transmission distance is shorted, reducing the recombination probability of photogenerated electron-hole pairs
WO3/Fe2O3-2 h composite photocatalyst displays the rough surface and the larger surface area than bare 2D WO3, which may imply the enhanced performances of photocatalytic reaction
Summary
The increasingly serious environmental problems and energy crisis have aroused the concern of scientists all over the world due to over application of fossil fuels and uncontrolled discharge of industrial wastewater [1,2,3]. WO3/CuO composite photocatalyst through the combining method of spray pyrolysis and flame, and the composite photocatalyst showed enhanced photocatalytic us properties Li and his co-workers [27] synthesized successfully WO3/MoS2-rGO nanocomposite photocatalyst, and the significantly improved photocatalytic performances are displayed by the photocatalyst, which include the photocatalytic an degradation rate of 98.3% with photocatalytic reaction for 20 min. As an one of the typical n-type semiconductors, hematite (α-Fe2O3) have been extensively researched in filed photoelectromechamical and photocatalytic fields due to response activity for visible light with the bandgap of ~2.2 eV, excellent chemical stability and low cost It is nothing worth for the application of Fe2O3 that the theoretical feasibility is supported for the construction of type-II heterojunction due to suitable position with WO3 for energy bands. This work can play a good supporting role for the maximum application of WO3-based films in photocatalytic dye degradation and antibiosis
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
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.
