Bismuth iodide oxide / zinc oxide composite and preparation method therefor and application thereof in piezoelectric photocatalytic removal of organic pollutants
US12280362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2020 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Aug 17, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A bismuth iodide oxide/zinc oxide composite material, a preparation method therefor and an application thereof in piezoelectric photocatalytic removal of organic pollutants. The conductive substrate spin-coated with a zinc oxide seed solution is annealed and added to the precursor solution for reaction to obtain a zinc oxide nanorod array (ZnO NRs); the zinc oxide nanorod array is added into a bismuth iodide precursor solution for reaction to obtain the bismuth iodide oxide/zinc oxide composite material (BiOI/ZnO NAs). The composite material is put into an aqueous solution containing bisphenol A, adsorption is performed in the dark for half an hour, and then ultrasound and visible light are used together to remove organic pollutants in the water. After piezoelectric photocatalytic degradation of 90 minutes, bisphenol A in the aqueous solution is almost completely degraded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.