Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 271, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2021.124871
Keywords
Photoelectrocatalysis; Tetracycline; Three-dimensional; Visible light; EPR
Categories
Funding
- Guangzhou Municipal S&T Innovation Fund [202102020355]
- Natural Science Foundation of Guangdong Province, China [2019A1515012202]
- National Natural ScienceFoundation of China [52000079, 51978288]
Ask authors/readers for more resources
The study successfully constructed ZnO/BiVO4 nanocomposite, which exhibited exceptional performance in the photoelectrocatalytic degradation process, with a significant increase in photocurrent density compared to the pristine materials, and a degradation efficiency of tetracycline reaching 84.5%.
The coral-like BiVO4 was successfully constructed on ZnO nanorods grown on FTO substrates to reveal exceptional photoinduced charge migration kinetics as well as the underlying photoelectrocatalytic degradation process. The orderly ZnO nanorods array accelerated the separation of photogenerated carriers, while the threedimensional coral structure of ZnO/BiVO4 nanocomposite increased the efficiency of light absorption and mass transfer, thus improving the photoelectrochemical properties. Fine interfacial contact between ZnO and BiVO4 led to the optimized photoelectrochemical performance with a photocurrent density of 0.29 mA/cm(2) at 0 V vs. Ag/AgCl under visible light illumination (lambda >= 420 nm), which was 3.2 times, 1.6 times of that of pristine ZnO and BiVO4. Moreover, the photoelectrocatalytic degradation efficiency of tetracycline from the ZnO/BiVO4 nanocomposite on was c. a. 84.5% and the main degradation paths were analyzed by LC-MS. Radical scavengers were employed to evaluate the capability to produce O-center dot(2)- and (OH)-O-center dot active species upon visible light illumination. This study elucidated the reaction mechanisms of the ZnO/BiVO4 nanocomposite during the photoelectrocatalytic degradation process.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available