Abstract
It is of significance to develop porous ZnO photocatalysts with high activity. In this paper, three kinds of hierarchical ZnO porous structures were fabricated by a precursor transformation of hierarchical Zn5(CO3)2(OH)6 structures synthesized in the zinc salts and urea aqueous solution. The microstructure characterization demonstrates that the obtained ZnO materials are porous structure and quasi-single-crystal nature. The solid UV–vis and PL spectra indicate that the porous ZnO with different morphologies have similar photoabsorption ability but different ratioes of green-to-UV emission, respectively. These porous ZnO samples with different structures exhibit different photocatalytic efficiency. More importantly, the photocatalytic activity of porous ZnO fabricated by the precursor-pyrolyzing method is inversely proportional to the content of surface defects under other influence factors comparable. This result inconsistent with references was also discussed.
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 callMore From: Journal of Materials Science: Materials in Electronics
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.
