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Preparation method of organic matter photolysis catalyst

A catalyst and organic technology, applied in the field of photocatalysis, can solve the problems of low degradation rate and slow rate

Pending Publication Date: 2019-04-05
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, the treatment methods for organic wastewater include physical and chemical methods such as extraction, adsorption, and concentration. At this stage, there are many related studies on photocatalytic degradation of organic matter; Slow rate, low degradation rate, etc.

Method used

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  • Preparation method of organic matter photolysis catalyst
  • Preparation method of organic matter photolysis catalyst

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preparation example Construction

[0022] A kind of preparation method of organic matter photolysis catalytic converter, carry out according to the following steps:

[0023] Step 1, taking a single wafer of ferroelectric material as a substrate; cleaning the substrate with acetone, ethanol and deionized water in sequence, and blowing it dry with nitrogen;

[0024] The single wafer of the ferroelectric material is a single wafer of bismuth ferrite or a single wafer of lithium niobate;

[0025] Step 2, facing the positively polarized surface of the substrate upward, and dripping an aqueous solution of silver nitrate on the positively polarized surface;

[0026] The concentration of the silver nitrate aqueous solution is 1mM;

[0027] Step 3. Use a strength of 100m W / cm 2 1. Ultraviolet light with a wavelength of 200-400nm irradiates the silver nitrate aqueous solution for 15-25min, and the incident angle of the ultraviolet light is controlled to be 90°, and silver nitrate is photochemically deposited on the sub...

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Abstract

The invention discloses a preparation method of an organic matter photolysis catalyst. the preparation method includes: taking a single crystal wafer made of a ferroelectric material as a substrate; enabling a forward polarized face of the substrate to be upward, and dropwise adding a silver nitrate water solution onto the forward polarized face; using ultraviolet to irradiate the silver nitrate water solution for photochemical deposition reaction to prepare nano silver particles on the forward polarized face of the substrate, and oxidizing the nano silver particles into nano silver oxide particles to obtain a finished product. By adopting the preparation method, the photocatalyst having efficient photodegradation effect on organic matter like rhodamine B can be prepared, degradation speedis higher, and degradation rate is higher.

Description

technical field [0001] The invention relates to a photocatalytic technology, in particular to a method for preparing an organic photocatalyst. Background technique [0002] In food processing, papermaking, printing and dyeing and other industrial wastewater and domestic sewage, it contains carbohydrates, proteins, oils, lignin and other organic substances. These substances exist in the sewage in a suspended or dissolved state and can be decomposed by the biochemical action of microorganisms. Oxygen-depleting pollutants are called oxygen-depleting pollutants because they consume oxygen during their decomposition. This pollutant can reduce dissolved oxygen in the water, affecting the growth of fish and other aquatic organisms. After the dissolved oxygen in the water is exhausted, the organic matter undergoes anaerobic decomposition, producing unpleasant odors such as hydrogen sulfide, ammonia and mercaptans, which deteriorate the water quality. [0003] In the prior art, th...

Claims

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Application Information

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IPC IPC(8): C02F1/32C02F101/30
CPCC02F1/325C02F2101/30C02F2305/10
Inventor 刘晓燕吕思宜范保艳邢安贾碧尹立孟
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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