US 10,518,252 B1 · Carbon nitride membrane composite material modified by black phosphorus/ metal organic framework, and preparation method thereof and application in waste gas treatment

Abstract

A carbon nitride membrane composite material modified by black phosphorus/metal organic framework (MOF) and a preparation method and application thereof to waste gas treatment are disclosed. First, taking urea as a raw material to calcine at a high temperature and prepare porous carbon nitride nanosheet; then carrying out surface carboxylation on the porous carbon nitride nanosheet, and modifying metal organic framework (MOF) on the surface of the porous carbon nitride through a layer-by-layer self-assembling method; stripping block black phosphorus materials into a two-dimensional black phosphorus slice by solvent exfoliation method; mixing the MOF-modified porous carbon nitride material with the two-dimensional black phosphorus material, carrying out suction filtration on the mixture under a vacuum pump to obtain the black phosphorus/MOF-modified carbon nitride membrane composite material.

Claims17

Dependent claims

A preparation method of a carbon nitride membrane composite material modified by black phosphorus/metal organic framework, characterized in comprising the following steps:

(1) using urea as a raw material, calcining to prepare porous carbon nitride nanosheet;
(2) carrying out carboxylation on the porous carbon nitride nanosheet, and modifying metal organic framework on it to obtain porous carbon nitride material modified by metal organic framework;
(3) stripping block black phosphorus into a two-dimensional black phosphorus slice by solvent exfoliation method;
(4) dispersing the porous carbon nitride material modified by metal organic framework and the two-dimensional black phosphorus slice in an organic solvent, stirring at room temperature and suction filtrating to obtain the carbon nitride membrane composite material modified by black phosphorus/metal organic framework.

1 more element

A method of treating exhaust gas, characterized in comprising the following steps:

(1) using urea as a raw material, calcining to prepare porous carbon nitride nanosheet;
(2) carrying out carboxylation on the porous carbon nitride nanosheet, and modifying metal organic framework on it to obtain porous carbon nitride material modified by metal organic framework;
(3) stripping block black phosphorus into a two-dimensional black phosphorus slice by solvent exfoliation method;
(4) dispersing the porous carbon nitride material modified by metal organic framework and the two-dimensional black phosphorus slice in an organic solvent, stirring at room temperature and suction filtrating to obtain the carbon nitride membrane composite material modified by black phosphorus/metal organic framework;
(5) under illumination, passing the exhaust gas through the carbon nitride membrane composite material modified by black phosphorus/metal organic framework to carry out the gas treatment.

2 more elements

Dependencies are inferred from the claim text.

Carbon nitride membrane composite material modified by black phosphorus/ metal organic framework, and preparation method thereof and application in waste gas treatment

Life of this patent

Carbon nitride membrane composite material modified by black phosphorus/ metal organic framework, and preparation method thereof and application in waste gas treatment

Life of this patent

Abstract

Claims17