Phosphorus-hybridized graphitic carbon nitride nanosheets loaded with gold nanoparticles, and preparation method and application thereof

Abstract

The invention discloses a gold nanoparticle-loading phosphorus hybridized graphite-phase carbon nitride nanosheet as well as a preparation method and application thereof. The gold nanoparticle-loadingphosphorus hybridized graphite-phase carbon nitride nanosheet adopts the phosphorus hybridized graphite-phase carbon nitride nanosheet as a vector to be loaded with the gold nano particles on the surface. The preparation method comprises the following steps: preparing phosphorus hybridized graphite-phase carbon nitride carbon nanosheet dispersion, mixing the prepared phosphorus hybridized graphite-phase carbon nitride nanosheet dispersion and a chloroauric acid solution, and preparing the nanosheet of the invention. The gold nanoparticle-loading phosphorus hybridized graphite-phase carbon nitride nanosheet has the advantages that the photoelectric capability is high, the stability is high, the specific surface area is large, the aperture is regular and orderly, the dispersion performanceis good, the light energy utilization rate is high, and the like. The preparation method has the advantages of simple preparation process, low cost and the like and is suitable for the mass preparation. The gold nanoparticle-loading phosphorus hybridized graphite-phase carbon nitride nanosheet can be used as a functional nano material for detecting or degrading environment pollutants, so that a good effect can be achieved, and the application prospect is good.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a functional nanometer material for detecting and degrading environmental pollutants, in particular to a phosphorous hybrid graphite phase carbon nitride nanosheet loaded with gold nanoparticles and a preparation method and application thereof. Background technique [0002] With the gradual shortage of fossil energy, more and more people turn their attention to renewable energy such as solar energy. Semiconductor photoelectrochemical catalysis technology has attracted great attention of researchers, and has been widely used in light-emitting devices, optical detectors, photoelectrochemical cells, etc., and can also solve many problems of energy and the environment. Photoelectrochemical catalysis accelerates the photoelectrochemical reaction by selecting the semiconductor photoelectrode (or powder) material and (or) changing the surface state of the electrode (surface treatment or...

AI Technical Summary

Problems solved by technology

However, the ubiquitous problems include low light energy conversion efficiency, insufficient catalyst activity, insufficient catalyst selectivity, insufficient catalyst life, and easy recombination of photogenerated carriers.

[0003] As a photocatalyst for photocatalytic hydrogen production and environmental pollution treatment, the non-metallic semiconductor carbon nitride (g-C 3 N 4 ) has received extensive attention and research, but it still has shortcomings: low specific surface area and high carrier recombination rate

However, these methods have problems such as complicated process, difficult operation, and high cost, and the graphitic carbon nitride photocatalysts prepared by them still have the following shortcomings: small specific surface area, incomplete separation of electrons and holes, slow electron transport speed, and the occurrence of recombination etc.

The existence of the above problems greatly limits the application range of new photoelectrochemical catalytic materials based on graphitic carbon nitride in the field of photoelectrochemical catalysis, so it is necessary to use simple optimization methods to significantly improve the photoelectrochemical performance of graphitic carbon nitride

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