Black phosphorus/g-C3N4 composite visible light photocatalytic material as well as preparation method and application thereof

Abstract

The invention discloses a black phosphorus / g-C3N4 composite visible light photocatalytic material. The black phosphorus / g-C3N4 composite visible light photocatalytic material is a product of black phosphorus and g-C3N4 by ball-milling compositing, wherein black phosphorus accounts for 0.5%-50% by weight of g-C3N4. Visible light responding semiconductor black phosphorus is subjected to ball-millingcompositing with g-C3N4 for the first time, and photocatalytic efficiency of g-C3N4 is improved effectively by constructing a heterostructure, so that the prepared black phosphorus / g-C3N4 composite visible light photocatalytic material can be used for degrading organic pollutants, is particularly applicable to degradation of organic photosensitizers and photoinitiators such as rhodamine B and hasgreat application prospect in the field of photocatalytic degradation of organic matter; the black phosphorus / g-C3N4 composite visible light photocatalytic material can be prepared with the ball-milling method, a preparation scheme is simple, and cost is low.

Description

technical field

[0001] The invention belongs to the technical field of nanocomposite materials, in particular to a black phosphorus / g-C 3 N 4 Composite visible light photocatalytic material and its preparation method and application. Background technique

[0002] With the development of industry and the continuous discharge of organic dye wastewater, the total amount and types of dyes entering the ecological environment have gradually increased, and the ecological pollution caused by dyes has become more and more serious. The dyes in the factory are discharged into industrial wastewater during the production process. Under natural conditions, physical and chemical reactions such as oxidation and hydrolysis will occur, and toxic by-products will be generated, which will greatly endanger the human living environment. At present, the traditional methods of pollution control, such as adsorption by physical methods, degradation by biological methods, redox by chemical methods, ...

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