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In-AgBr photocatalytic material and synthesis method thereof

A photocatalytic material, 1.in-agbr technology, applied in chemical instruments and methods, special compound water treatment, physical/chemical process catalysts, etc., can solve problems such as deactivation and easy photocorrosion

Inactive Publication Date: 2017-08-22
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, we recently discovered that silver bromide itself is more sensitive to light and is easily deactivated by photocorrosion.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0012] Dissolve 0.002mol of silver nitrate in 20mL of deionized water, add 5mL of 25wt.% ammonia, then add 0.0001mol of indium chloride, then dissolve 0.002mol of sodium bromide in 20mL of deionized water, and slowly add sodium bromide solution Dropping into the silver nitrate solution quickly produced a large amount of precipitation, the obtained precipitate was suction filtered, washed with distilled water and absolute ethanol in turn, and then vacuum dried at 80°C for 12 hours to obtain the corresponding photocatalytic material.

Embodiment approach 2

[0014] The indium chloride in Embodiment 1 is changed to 0.0002 mol, and other conditions remain unchanged.

Embodiment approach 3

[0016] Change the indium chloride in Embodiment 1 to 0.0003 mol, and other conditions remain unchanged.

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PUM

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Abstract

The invention relates to a photocatalytic material and a preparation method thereof, and belongs to the field of inorganic photocatalytic materials. The photocatalytic material includes In-AgBr and mixture of the In-AgBr and other photocatalytic materials. The prepared photocatalytic material has photocatalytic activity in the wavelength range of 400 to 1000 nm, and can conduct photocatalytic degradation on organic pollutants under the irradiation of visible lights or natural lights.

Description

Technical field [0001] The invention relates to a new type of photocatalytic material. [0002] The invention also relates to a preparation method of the above-mentioned photocatalytic material. [0003] The present invention also relates to the use of the aforementioned photocatalytic material. Background technique [0004] Photocatalytic oxidation technology has the advantages of energy saving, clean and pollution-free, and has become a new method for processing solid, liquid and gas waste. But looking for excellent photocatalytic materials is still a huge challenge. Silver bromide is a new type of photocatalytic material discovered in recent years. Under light radiation, metallic silver nanoparticles can be formed on the surface of silver bromide, forming a plasmon resonance system with silver bromide semiconductor. Light is irradiated on the surface of silver particles, and the formed photo-generated electrons are directly injected into the conduction band of silver bromide, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/125C02F1/30C02F1/72C02F101/30
CPCC02F1/30C02F1/725B01J27/125C02F2305/10C02F2101/308B01J35/39
Inventor 宋立民刘昕卉
Owner TIANJIN POLYTECHNIC UNIV
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