Heterojunction composite material consisting of one-dimensional IN2O3 hollow nanotube and two-dimensional ZnFe2O4 nanosheet, and application thereof in water pollutant removal
US11345616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2020 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Nov 6, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A heterojunction composite material consisting of one-dimensional In2O3 hollow nanotube and two-dimensional ZnFe2O4 nanosheets and its application are disclosed. When using this material for catalytic reactions, the hollow cavity and two-dimensional nanosheets of hollow nanomaterials can not only reduce the migration distance to accelerate the electron-hole separation, but also provide a large surface area and rich active sites to promote pollution adsorption and surface catalysis. At the same time, multiple light scattering or reflection in the hollow cavity of the hollow nanomaterials can increase light absorption and utilization. In addition, the heterojunction photocatalyst constructed by growing two-dimensional semiconductor nanosheets on a tubular substrate can promote the effective separation of photogenerated electrons and photogenerated holes, thereby improving the catalytic efficiency. In terms of catalytic performance, In2O3 @ ZnFe2O4 shows effective degradation of tetracycline, and due to its ferromagnetism, it shows convenient and good separation effect and has good recycling performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.