Composite titanium dioxide photocatalyst

A titanium dioxide and photocatalyst technology is applied in the field of photocatalytic materials to achieve the effects of low cost, mild reaction conditions and good economic benefits

Inactive Publication Date: 2016-12-14
GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the problems existing in the existing photocatalyst, and provides a composite titanium dioxide photocatalyst

Method used

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  • Composite titanium dioxide photocatalyst

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of composite titanium dioxide photocatalyst, get each raw material according to following ratio: TiO Powder 10kg, polyethylene glycol stearate 0.8kg, manganese slag 1.0kg, iron porphyrin 0.3kg, lanthanum oxide 0.05kg and starch 1kg, Its preparation method comprises the following steps:

[0026] (1) Add Ti02 powder and polyethylene glycol stearate into an ultrasonic generator, then add 20kg of ethanol, and ultrasonicate for 60min at a frequency of 40KHz to obtain a titanium-based suspension;

[0027] (2) Put the titanium-based suspension, manganese slag, iron porphyrin, lanthanum oxide and starch into the ball mill, then add 40kg of water, and stir for 60min at a speed of 300r / min to obtain a paste;

[0028] (3) Microwave dry the above paste at 70°C for 2h, grind it into a powder with a particle size of 1.0mm after drying, and then put it into a horse boiling furnace and bake it at a temperature of 600°C for 6h to obtain a photocatalyst.

Embodiment 2

[0030] A kind of composite titanium dioxide photocatalyst, get each raw material according to following ratio: TiO2 powder body 10kg, macrogol stearate 0.6kg, manganese slag 1.2kg, iron porphyrin 0.2kg, lanthanum oxide 0.1kg and starch 1.2kg , its preparation method comprises the following steps:

[0031] (1) Add Ti02 powder and polyethylene glycol stearate into an ultrasonic generator, then add 30kg of ethanol, and ultrasonicate for 30min at a frequency of 60KHz to obtain a titanium-based suspension;

[0032] (2) Put the titanium-based suspension, manganese slag, iron porphyrin, lanthanum oxide and starch into the ball mill, then add 50kg of water, and stir for 30min at a speed of 500r / min to obtain a paste;

[0033] (3) Microwave dry the above paste at 80°C for 1.5h, grind it into a powder with a particle size of 1.0mm after drying, and then put it into a horse boiling furnace and bake it at 700°C for 5h to obtain a photocatalyst.

Embodiment 3

[0035] A kind of composite titanium dioxide photocatalyst, get each raw material according to following ratio: TiO2 powder body 10kg, macrogol stearate 1.0kg, manganese slag 1.2kg, cobalt porphyrin 0.4kg, lanthanum oxide 0.05kg and starch 1.5kg , its preparation method comprises the following steps:

[0036] (1) Add Ti02 powder and polyethylene glycol stearate into an ultrasonic generator, then add 30kg of ethanol, and ultrasonicate for 45min at a frequency of 50KHz to obtain a titanium-based suspension;

[0037] (2) Put the titanium-based suspension, manganese slag, cobalt porphyrin, lanthanum oxide and starch into the ball mill, then add 40kg of water, and stir for 60min at a speed of 500r / min to obtain a paste;

[0038] (3) Microwave dry the above paste at 90°C for 1.5h, grind it into a powder with a particle size of 1.0mm after drying, and then put it into a horse boiling furnace and bake it at a temperature of 700°C for 4h to obtain a photocatalyst.

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Abstract

The invention discloses a composite titanium dioxide photocatalyst. The composite titanium dioxide photocatalyst is prepared from, by weight, 100 parts of TiO2 powder, 6-10 parts of polyethylene glycol stearate, 10-15 parts of manganese ore slag, 2-4 parts of metalloporphyrin, 0.5-1.5 parts of lanthanum oxide and 10-15 parts of starch. The composite titanium dioxide photocatalyst has advantages of extensive raw material source, low cost, technical simplicity in preparation, high production efficiency, low energy consumption, mild reaction conditions, environment friendliness, excellent adsorption performance, high catalytic activity, high catalytic efficiency and the like, and is efficient in catalytic degradation of organic wastewater pollutants under visible light irradiation, high in economic benefit, social benefit and ecological benefit and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of photocatalytic materials, in particular to a composite titanium dioxide photocatalyst. Background technique [0002] Since the 21st century, with the improvement of the pace of industrialization and the excessive use of natural resources, various environmental pollution and energy scarcity problems have continued to intensify. Therefore, it is imminent to control all kinds of pollution and find new energy sources to relieve the pressure on the earth. Photocatalytic technology has been widely used in many fields such as wastewater treatment, gas purification, sterilization, antifouling, self-cleaning materials, dye-sensitized solar cells, cosmetics, and gas sensors. Photocatalysis is based on the basic characteristics of semiconductor materials that can generate photogenerated electrons with strong reductivity and holes with strong oxidative properties under light excitation. Solid photocatalysts can abso...

Claims

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Application Information

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IPC IPC(8): B01J21/06B01J35/10C02F1/30C02F101/30
CPCC02F1/30B01J21/063C02F2305/10C02F2101/308C02F2101/30B01J35/39B01J35/615Y02W10/37
Inventor 杨贺
Owner GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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