Patent · US Active

Two-dimensional nitrogen-doped carbon-based titanium dioxide composite material, and preparation method and application thereof for degrading and removing organic pollutants in water

US11192093B2 · kind B2 · utility

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13Claims

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Assignee

Soochow University · CN

Inventors

Jianmei Lu · Suzhou, CN
Najun Li · Suzhou, CN

Key dates

Filing date	Oct 21, 2019
Grant date	Dec 7, 2021
Priority date	—
Expiry date	Feb 27, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W10/37
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A preparation method of a two-dimensional nitrogen-doped carbon-based titanium dioxide composite material includes: (1) etching Ti3AlC2 with LiF/HCl to prepare two-dimensional transition metal carbide nanosheet; (2) preparing a nanosheet aggregate by electrostatic self-assembly of a two-dimensional transition metal carbide nanosheet and a positively charged nitrogen-containing cationic compound; (3) calcining the nanosheet aggregates to prepare a two-dimensional nitrogen-doped carbon-based titanium dioxide composite material. A method for degrading and removing organic pollutants in water includes (1) etching Ti3AlC2 with LiF/HCl to prepare two-dimensional transition metal carbide nanosheet; (2) preparing a nanosheet aggregate by electrostatic self-assembly of a two-dimensional transition metal carbide nanosheet and a positively charged nitrogen-containing cationic compound; (3) calcining the nanosheet aggregates to prepare a two-dimensional nitrogen-doped carbon-based titanium dioxide composite material; (4) placing the two-dimensional nitrogen-doped carbon-based titanium dioxide composite material into water containing organic pollutants to degrade and remove organic pollutants i…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.