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Flower-like AgBiO3/NaBiO3 photocatalytic material synthesized by in-situ method and application thereof

A technology of photocatalytic materials and in-situ method, which is applied in the field of in-situ synthesis of flower-like AgBiO3/NaBiO3 photocatalytic materials and its preparation, which can solve incomplete, low-efficiency treatment of organic matter in wastewater, lack of in-depth research on catalytic performance and application and other issues to achieve the effect of improving the total efficiency of pollutant removal and reducing costs

Pending Publication Date: 2022-03-11
ZHENGZHOU UNIVERSITY OF AERONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high mobility of photoinduced electrons, current research focuses more on visible light photocatalytic degradation of pollutants in water, and there is a lack of in-depth research on its potential catalytic properties and applications.
Aiming at the current problem of inefficient or incomplete treatment of organic matter in wastewater, the construction of AgBiO 3 / NaBiO 3 Composite catalysts, to study their application in the removal of organic matter in wastewater under the conditions of dark reaction and light reaction, and use their own oxidation performance and photocatalytic performance to efficiently remove organic matter in wastewater, which is an important scientific theory for the practical application of organic pollutant wastewater treatment value and practical significance

Method used

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  • Flower-like AgBiO3/NaBiO3 photocatalytic material synthesized by in-situ method and application thereof
  • Flower-like AgBiO3/NaBiO3 photocatalytic material synthesized by in-situ method and application thereof
  • Flower-like AgBiO3/NaBiO3 photocatalytic material synthesized by in-situ method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Put 2gNaBiO in the dark environment 3 2H 2 O was dissolved in 40ml of distilled water, stirred magnetically, and 0.198ml of 3mol / LAgNO was added dropwise 3 solution, magnetically stirred for 30 minutes, then centrifuged and washed six times with absolute ethanol and distilled water, and finally placed in a vacuum drying oven at a temperature of 80°C for 6 hours to obtain AgBiO 3 In situ synthesis of flower-like AgBiO with 10% content 3 / NaBiO 3 Photocatalytic materials (AgBiO 3 / NaBiO 3 ).

Embodiment 2

[0028] Put 2gNaBiO in the dark environment 3 2H 2 O was dissolved in 40ml of distilled water, stirred magnetically, and 0.396ml of 3mol / LAgNO was added dropwise 3 solution, magnetically stirred for 30 minutes, then centrifuged and washed six times with absolute ethanol and distilled water, and finally placed in a vacuum drying oven at a temperature of 80°C for 6 hours to obtain AgBiO 3 20% AgBiO 3 / NaBiO 3 Complex.

Embodiment 3

[0030] Put 2gNaBiO in the dark environment 3 2H 2 O was dissolved in 40ml of distilled water, magnetically stirred, and 0.594ml of 3mol / LAgNO was added dropwise 3 solution, magnetically stirred for 30 minutes, then centrifuged and washed six times with absolute ethanol and distilled water, and finally placed in a vacuum drying oven at a temperature of 80°C for 6 hours to obtain AgBiO 3 30% AgBiO 3 / NaBiO 3 Complex.

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Abstract

The invention discloses a flower-like AgBiO3 / NaBiO3 photocatalytic material synthesized by an in-situ method and application of the flower-like AgBiO3 / NaBiO3 photocatalytic material, and relates to the technical field of photocatalysis. The material is a compound formed by compounding silver bismuthate and sodium bismuthate, the mass percent of the silver bismuthate in the compound is 10 to 50 percent. On the basis of insoluble sodium salt NaBiO3, an AgBiO3 / NaBiO3 compound is constructed, the oxidizing property of NaBiO3 and AgBiO3 is utilized, the capability of removing pollutants synergistically through direct oxidation and catalytic oxidation is exerted, additional active species are provided in the degradation process, the total efficiency of pollutant removal is improved, and the method has the advantages of simple operation and low cost. The method has an important scientific theoretical value for the practical application of organic pollutant wastewater treatment.

Description

technical field [0001] The invention relates to the technical field of photocatalysis, in particular to an in-situ method for synthesizing flower-like AgBiO 3 / NaBiO 3 Photocatalytic materials and their preparation methods and applications. Background technique [0002] The environmental problem of organic pollution in the water phase seriously threatens the ecological sustainable development of society and human life and health, and has been highly valued by countries all over the world. my country's Environmental Protection Law sets strict standards for water-phase pollutants. Persistent organic pollutants in wastewater have high environmental toxicity, refractory degradation, transmission and accumulation effects through the food chain, and traditional biological or physical and chemical methods are difficult to effectively eliminate such pollutants. Therefore, the development of advanced technologies to effectively eliminate such pollutants is not only an important sc...

Claims

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Application Information

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IPC IPC(8): B01J23/68C02F1/72C02F1/30C02F101/34C02F101/38C02F101/36C02F101/30
CPCB01J23/681B01J23/002C02F1/725C02F1/30B01J2523/00C02F2101/34C02F2101/345C02F2101/38C02F2305/10C02F2101/36C02F2101/30B01J35/39B01J2523/12B01J2523/18B01J2523/54Y02W10/37
Inventor 柳海萍李士恒梁晶郭丽高前程李春光贾晓凤周建国
Owner ZHENGZHOU UNIVERSITY OF AERONAUTICS
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