In—NH2/g-C3N4 nanocomposite with visible-light photocatalytic activity and preparation and application thereof
US11167274B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2020 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Jul 22, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides an In—NH2/g-C3N4 nanocomposites with visible-light photocatalytic activity and application thereof, which can effectively remove organic pollutants (such as tetracycline) in water. First, the graphite phase carbonitride carbon (g-C3N4) was obtained by thermal condensation, and g-C3N4 nanosheet was prepared by thermal oxidative etching. Then, acicular MIL-68(In)—NH2 (In—NH2) was grown in situ on the surface of g-C3N4 nanosheet by solvothermal method. The In—NH2/g-C3N4 nanocomposites with high visible-light photocatalytic activity were obtained. The CNNS firstly was prepared in the present invention, which is beneficial to the needle-like In—NH2 growing on the surface of CNNS and having close interfacial contact with each other, forming a heterojunction, promoting the separation of photogenerated electrons and holes pairs, and enhancing visible-light photocatalytic degradation of organic pollutants. The nanocomposites show high structural stability and reusability, which has great potential in the field of water remediation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.