Photosensitive quartz tube preparation method

A quartz tube and photosensitive technology, which is applied in glass manufacturing equipment, chemical instruments and methods, manufacturing tools, etc., can solve the problems of high energy consumption, slow effect of decomposing oil and gas, and peculiar smell, so as to reduce energy consumption and high-efficiency photocatalysis The effect of activity and photocatalytic stability

Active Publication Date: 2015-10-21
JIANGSU SHENGDA QUARTZ PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are some glass tubes for photolysis on the market, but they have the characteristics of slow decomposition of oil and gas, peculiar smell, and high energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preparation method: select SiO 2 Quartz stone with a content of more than 99.95% is used as a raw material, and it is subjected to a series of pretreatment steps of acid leaching, calcination, water quenching, crushing, reactor pickling, flotation, sand baking, and high-temperature chlorination purification to obtain a purity of 99.99%. % High-purity quartz sand; mix and pulverize alumina and bismuth silicate dopant in a certain proportion to obtain particles with a particle size ≤ 300 μm, mix and dissolve with water, and uniformly spray the obtained suspension under 0.8MPa pressure through an atomization device Spray on the high-purity quartz sand; put the dopant-sprayed quartz sand into the sand baking machine for baking, the baking temperature is 850°C-900°C; after drying, pack it in barrels and transport it to the furnace for feeding; through The multi-layer heating element in the continuous furnace adjusts the temperature in the furnace to 2200 degrees, and the hea...

Embodiment 2

[0022] The preparation method is the same as in Example 1.

[0023] The prepared quartz tube doped with alumina / bismuth silicate was applied to the photocatalytic degradation experiment, and the methyl orange aqueous solution was used as the target degradation product for photocatalytic degradation treatment, and the doped quartz tube was ground and ultrasonically pulverized to obtain a concentration of 1g / L , the concentration of methyl orange aqueous solution was 20mg / L, and the degradation rate of methyl orange reached 92.11% and 90.01% after 3h of ultraviolet light irradiation and 5h of visible light irradiation.

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Abstract

The invention relates to a photosensitive quartz tube preparation method, and belongs to the field of chemistry and chemical engineering. According to the preparation method, Al2O3 and bismuth silicate are taken as a doping material to obtain a novel quartz glass tube according to a certain ratio, and the heat stability and the light transmittance of the quartz glass tube are changed, so as to obtain a peculiar high photosensitivity. The photosensitive quartz tube has efficient photocatalytic activity within a wavelength range of 185 to 500, is capable of catalyzing, oxidizing and degrading organic compounds in an ultraviolet light waveband and a visible light waveband, can be widely applied in household water-consumption equipment, independent type air purifiers, wall-mounted air purifying equipment, pipeline air handling units, urban water treatment systems and air handling equipment, is capable of reducing energy consumption, and is a new environmental and cleaning material.

Description

technical field [0001] The invention relates to a preparation technology for doping alumina and bismuth silicate in the preparation process of a quartz tube, and belongs to the field of chemistry and chemical engineering. Background technique [0002] The main component of the quartz tube is SiO 2 , its thermal expansion coefficient is small, has good high temperature resistance, thermal conductivity, thermal stability, optical properties, chemical stability, and has been more and more widely used in industrial and civilian products. At present, there are some glass tubes for photolysis on the market, but they have the characteristics of slow decomposition of oil and gas, peculiar smell, and high energy consumption. In recent years, bismuth-based semiconductor materials have become one of the research hotspots of new photocatalytic materials because of their good catalytic effect on refractory organic compounds under ultraviolet and visible light irradiation. Bismuth-based...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B20/00B01J23/18
Inventor 段玉伟段其九韩凯蔡征海曹爱纬
Owner JIANGSU SHENGDA QUARTZ PROD CO LTD
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