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- Title
Efficient photocatalytic degradation of tetracycline hydrochloride by Cu<sub>2</sub>O/BiVO<sub>4</sub> p-n heterostructure.
- Authors
Wang, J. X.; Mao, L. J.; Duan, Y. J.; Lei, K.; Zeng, X. H.; Sun, Y.; Li, T.
- Abstract
Star-like BiVO4 and Cu2O nanocubes were prepared by hydrothermal method and chemical reduction, respectively, and Cu2O/BiVO4 p-n heterojunction with different mass ratios of Cu2O to BiVO4 (3:1, 1:1, 1:3) were synthesized via facile physical mixing. The as-synthesized samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), UV-vis diffuse reflection spectroscopy (DRS) and X-ray photoelectron spectroscopy (XPS). The photocatalytic performance of the Cu2O/BiVO4 composites was evaluated by degradation of tetracycline hydrochloride (TC) under simulated solar illumination. Owing to the fast charge transfer between n-type BiVO4 and p-type Cu2O, Cu2O/BiVO4 composites exhibited superior photocatalytic activity. When the mass ratio of Cu2O to BiVO4 was 1:3, the highest degradation efficiency of TC reached 78.9% within 24 min.
- Subjects
PHOTODEGRADATION; X-ray powder diffraction; P-N heterojunctions; TETRACYCLINE; X-ray photoelectron spectroscopy; CHARGE transfer
- Publication
Digest Journal of Nanomaterials & Biostructures (DJNB), 2024, Vol 19, Issue 2, p539
- ISSN
1842-3582
- Publication type
Article
- DOI
10.15251/DJNB.2024.192.539