A kind of p-doped biocl visible light catalyst and preparation method thereof

Abstract

The invention provides a P-doped BiOCl visible light catalyst and a preparation method thereof. In the method, a bismuth nitrate suspension is mixed with a potassium chloride solution, and after adding a phosphorus source, the pH of the mixed solution is adjusted to 2.5-3.5 as a reaction solution, Prepared by reacting at 160℃~180℃ for 20h~24h, wherein the phosphorus source is H 3 PO 4 , NaH 2 PO 2 ·H 2 O, NaH 2 PO 4 and Na 3 PO 4 any of them. In the present invention, a P-doped BiOCl visible light catalyst is synthesized and prepared by a one-step hydrothermal method by selecting a limited doping phosphorus source and a doping ratio. The visible light activity of the catalyst can reach 2.73 times that of the BiOCl photocatalyst, and the preparation method and process are simple. , has excellent application prospects.

Description

technical field

[0001] The invention belongs to the technical field of preparation of visible light catalytic materials, in particular to a P-doped BiOCl visible light catalyst and a preparation method thereof, which are mainly used in the technical direction of water treatment in the field of environmental protection. Background technique

[0002] Energy and environmental issues are two major challenges facing the sustainable development of human society. Using sunlight as an energy source to remove environmental pollutants through photocatalytic methods is expected to become an important technology to meet the challenges. The core of photocatalytic technology is photocatalyst. Bismuth oxychloride (BiOCl) is a class of [Bi 2 o 2 ] 2+ layer and Cl - Photocatalysts composed of alternating layers have received extensive attention because of their wide sources, low price, suitable band gap, good stability, and easy modification.

[0003] However, BiOCl is an ultraviolet l...

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