Reaction speed-controllable iron-titanium dioxide-carbon ternary micro-electrolysis composite nanometer catalyst and preparation method thereof

A nano-catalyst and titanium dioxide technology, applied in the field of water treatment catalyst and its preparation, can solve the problems of unanalyzed copper oxide effect, service life of secondary pollution, low pore volume and activity, etc. Simple preparation method

Active Publication Date: 2015-05-13
浙江威尔森新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent "CN201410444688-a copper-based iron-carbon micro-electrolysis catalyst" does not specify the role of copper oxide or copper slag in the iron-carbon micro-electrolysis catalyst. Large powder fall, secondary pollution to water, short service life, high cost accounting, etc.
"But also did not analyze the action effect of copper oxide and other copper compounds in the embodiment

Method used

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  • Reaction speed-controllable iron-titanium dioxide-carbon ternary micro-electrolysis composite nanometer catalyst and preparation method thereof
  • Reaction speed-controllable iron-titanium dioxide-carbon ternary micro-electrolysis composite nanometer catalyst and preparation method thereof
  • Reaction speed-controllable iron-titanium dioxide-carbon ternary micro-electrolysis composite nanometer catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] ①Put 0.2kg of titanium dioxide nanobelt, 0.11Kg of carbon black and 0.6Kg of nano-iron powder with 45.5 grams of polyvinyl alcohol, 0.91Kg of water and 1.82Kg of balls into a ball mill for mixing. After ball milling for 2 hours, take out the slurry , filter, spare;

[0029] ②Spray-dry the obtained slurry, set the temperature in the drying chamber to 140°C, and prepare the dried powder for later use; the dried powder is the appearance of a single root of the composite catalyst as shown in the attached figure 1 shown;

[0030] ③Press the obtained powder axially with a pressure of 10MPa in a dry press molding machine to obtain a cylindrical green body (the diameter of the cylinder is 2±0.2cm, and the height is 2±0.2cm). After dry pressing, the iron-titanium dioxide-carbon trioxide The arrangement of the nanobelts in the micro-electrolytic composite nano-oxidation catalyst body is as follows: figure 2 shown;

[0031] ④Dry the cylindrical green body at 110°C, in a nitrog...

Embodiment 2

[0035] ①Put 0.6kg of titanium dioxide nanobelt, 0.2Kg of carbon black and 0.315Kg of nano-iron powder with 55.75 grams of polyvinyl alcohol, 1.115Kg of water and 2.23Kg of balls into a ball mill for mixing. After ball milling for 11 hours, take out the slurry , filter, spare;

[0036] ②Spray-dry the obtained slurry, set the temperature in the drying chamber to 150°C, and prepare the dried powder for later use; the dried powder is the appearance of a single root of the composite catalyst as shown in the attached figure 1 shown;

[0037] ③Press the obtained powder axially with a pressure of 55MPa in a dry press molding machine to obtain a cylindrical green body (the diameter of the cylinder is 2±0.2cm, and the height is 2±0.2cm). After dry pressing, the iron-titanium dioxide-carbon trioxide The arrangement of the nanobelts in the micro-electrolytic composite nano-oxidation catalyst body is as follows: figure 2 shown;

[0038] ④Dry the cylindrical green body at 110°C, in a ni...

Embodiment 3

[0042] ①Put 1.0kg of titanium dioxide nanobelt, 0.02Kg of carbon black and 0.03Kg of nano-iron powder with 50.25 grams of polyvinyl alcohol, 1.05Kg of water and 2.1Kg of balls into a ball mill for mixing. After ball milling for 20 hours, take out the slurry , filter, spare;

[0043] ②Spray-dry the obtained slurry, set the temperature in the drying chamber to 160°C, and dry the powder for later use; the dried powder is the appearance of a single root of the composite catalyst as shown in the attached figure 1 shown;

[0044] ③Press the obtained powder axially with a pressure of 100MPa in a dry press molding machine to obtain a cylindrical green body (the diameter of the cylinder is 2±0.2cm, and the height is 2±0.2cm). After dry pressing, the iron-titanium dioxide-carbon trioxide The arrangement of the nanobelts in the micro-electrolytic composite nano-oxidation catalyst body is as follows: figure 2 shown;

[0045] ④Dry the cylindrical green body at 110°C, in a nitrogen atmo...

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Abstract

The invention discloses a reaction speed-controllable iron-titanium dioxide-carbon ternary micro-electrolysis composite nanometer catalyst. The catalyst adopts a cylindrical porous structure in shape and is formed by taking a titanium dioxide nano belt as a carrier and gathering a ribbon dispersed and embedded with carbon particles and metal iron particles on the surface, wherein the mass percentage of the titanium dioxide is 20-80 percent; the mass percentage of the carbon is 10-40 percent; the mass percentage of the iron is 10-40 percent; the ribbon has the length of 5-220 [mu]m, the width of 100-200 nm and the thickness of 20-40 nm; each of the carbon particles dispersed and embedded on the surface of the ribbon has the particle size of 30-50 nm, and each of metal iron particles has the particle size of 60-70 nm. The invention further discloses application of the catalyst. An experiment proves that the catalyst disclosed by the invention has high oxidation and catalysis ability and good mineralization effect and is widely applied to industrial water treatment.

Description

technical field [0001] The invention relates to a water treatment agent and a method thereof. In particular, it relates to an iron-titanium dioxide-carbon ternary micro-electrolysis composite nanocatalyst with controllable reaction speed, its preparation method and application; it belongs to the field of water treatment catalyst and its preparation. Background technique [0002] Organic matter in wastewater is one of the important sources of water pollution. Therefore, the chemical oxygen demand (COD) related to organic matter is also an indicator that environmental water resources need to be controlled. In order to reduce the COD in water and meet the increasing requirements of environmental protection discharge standards, many methods for degrading organic matter have been invented. Among them, the removal of refractory organic matter in industrial wastewater is an effective and important method. In this method, the most commonly used method is the iron-carbon micro-elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745C02F1/72C02F1/74
Inventor 刘百山刘宏王全科
Owner 浙江威尔森新材料有限公司
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