Abstract
Well-dispersed β-Bi2O3/Bi2O2CO3 hollow microspheres were successfully synthesized by calcination an intermediate product fabricated via a solvothermal method using N, N-dimethyl formamide (DMF) as reaction media and carbon nanospheres as sacrifice templates. The molar ratio of β-Bi2O3 and Bi2O2CO3 in β-Bi2O3/Bi2O2CO3 composites can be adjusted by controlling the roasting conditions, which will influence the utilization of sunlight and the photo-induced charge carrier separation and transfer of the composites constructed, thus affecting photocatalytic activity. Experimental and characterization results suggest that the formation of the special structure could be ascribed to the interdiffusion of BiO+ and carbon chain during solvothermal reaction. Control experiments confirmed that as-prepared β-Bi2O3/Bi2O2CO3 composites possessed reliable photocatalytic activity and recycle stability for tetracycline degradation, achieving 95.34 % under Xe lamp irradiation for 60 min and without significant decrease after four cycles. Our findings provide another insight for the transformation of elemental bismuth into β-Bi2O3, and open up a general route for the synthesis of Bi2O2CO3-based composite hollow microspheres for water pollution control.
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.
