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A cu/tio 2 Nanorod catalyst and its preparation method and application in wastewater wet oxidation

A catalyst and nanorod technology, which is applied in the fields of catalytic chemistry and environmental water treatment, can solve problems such as no patent reports, and achieve the effects of shortening reaction time, promoting collision probability, and low reaction temperature

Active Publication Date: 2017-12-29
四川龙门智创环保新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] There are few literature reports on the research on catalytic wet oxidation catalysts with special morphology at home and abroad, and there are no patent reports on the application of copper-based catalysts with specific morphology in the field of catalytic wet oxidation of wastewater

Method used

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  • A cu/tio <sub>2</sub> Nanorod catalyst and its preparation method and application in wastewater wet oxidation
  • A cu/tio <sub>2</sub> Nanorod catalyst and its preparation method and application in wastewater wet oxidation
  • A cu/tio <sub>2</sub> Nanorod catalyst and its preparation method and application in wastewater wet oxidation

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Embodiment 1

[0028] Under magnetic stirring (stirring speed 600r / min), 0.1g Cu(NO 3 ) 2 , 11g tetrabutyl titanate and 5g hexamethylenetetramine were dissolved in 10wt% ethylene glycol aqueous solution. Under a nitrogen atmosphere, react in a microwave reactor with a power of 300W for 10 minutes. Cool down to room temperature, filter the precipitate, wash with hot deionized water, dry at 90°C for 12 hours, and roast in a muffle furnace at 500°C for 4h to obtain Cu / TiO 2 nanorod catalysts. The prepared Cu / TiO 2 Catalysts were characterized by TEM. From figure 1 It can be seen that the carrier TiO 2The particle diameter is 80-120nm, and the length is about 400-600nm. The active metal copper is evenly dispersed on the surface of the carrier, and the diameter of the copper particles is 8-15nm.

[0029] Take 0.1g of catalyst and 5mL of phenol solution into a 50mL intermittent stainless steel autoclave; 3MPa oxygen pressure, 190°C reaction for 100min, the reaction solution is centrifuged...

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Abstract

The invention discloses a Cu / TiO 2 Catalyst, preparation method thereof and application in wet oxidation of wastewater. The catalyst uses copper as the active component, TiO 2 as a carrier; the active component content in the catalyst is 10-15wt%; TiO in the catalyst 2 The carrier has a uniform nanorod shape, with a diameter of 80-120nm and a length of 400-600nm; active metal copper is evenly dispersed on the surface of the carrier, and the copper particle size is 8-15nm. The catalyst has high reactivity and stability and is not suitable for deactivation. The catalyst is prepared by microwave-assisted uniform precipitation method. The method of the present invention has low energy consumption: microwave technology belongs to volume heating. Compared with conventional heating methods, it has the advantages of uniform heating of the reaction system, promoting the probability of collision between reaction molecules, shortening the reaction time, low reaction temperature and consuming less energy.

Description

technical field [0001] The present invention relates to a kind of Cu / TiO 2 Nanorod catalyst, its preparation method and application in waste water wet oxidation; it belongs to the fields of catalytic chemistry and environmental water treatment. Background technique [0002] A part of industrial wastewater is refractory high-concentration organic wastewater. This kind of wastewater has complex components and high content of toxic, harmful and refractory organic matter, which is the focus and difficulty of water pollution control. At present, the treatment technology of high-concentration refractory organic wastewater is mainly treated by chemical oxidation, which generally includes ozone oxidation, photocatalytic oxidation, electrocatalytic oxidation, wet oxidation, Fenton reagent oxidation, supercritical water oxidation and the combination of several methods. . Among them, catalytic wet oxidation technology (CWAO) has the advantages of high treatment efficiency, fast react...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/72B01J35/02C02F1/72C02F101/34B01J35/00
CPCC02F1/725C02F1/727B01J23/72C02F2101/345B01J35/00B01J35/30
Inventor 蔡伟杰张绍印崔励张江华王大鸷
Owner 四川龙门智创环保新材料科技有限公司
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