Preparation method and application of Ce-containing visible light catalytic nanomaterial

A nanomaterial and visible light technology, applied in the field of nanomaterials and photocatalytic materials, can solve the problem that the application prospect is not mentioned, and achieve the effects of small powder, energy saving and controllable specific surface area.

Active Publication Date: 2018-04-20
东北大学秦皇岛分校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At this stage, the preparation of Cu-Ce composite oxides by the above method has not been reported, and its application prospects have not been mentioned. The method provided by this patent can prepare Ce-containing visible photocatalytic nanomaterials, which is an important step in the preparation of new materials. creative work

Method used

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  • Preparation method and application of Ce-containing visible light catalytic nanomaterial
  • Preparation method and application of Ce-containing visible light catalytic nanomaterial
  • Preparation method and application of Ce-containing visible light catalytic nanomaterial

Examples

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Embodiment 1

[0030] A method for preparing Ce-containing visible light catalytic nanomaterials, including the following steps: weigh 5 mmol copper acetate and 5 mmol cerium acetate, and dissolve them in deionized water. The volume of deionized water is 4 times the total molar mass of copper acetate and cerium acetate , Mechanically stir to completely dissolve to obtain solution A; weigh 30mmol of ammonia and 20mmol of diacetyl oxime dissolved in a mixed solution of 200ml of ethanol and 200ml of water, mechanically stir until completely dissolved, control the pH of the solution to 10, to obtain solution B ; Pour solution B slowly into solution A, add 2mmol polyethylene glycol 1000, magnetically stir for 1h (rotor speed is 800r / min) to obtain solution C; adopt improved electrospinning to prepare nanometer diameter composites, the preparation process In, on the basis of the existing electrospinning equipment power supply is ±1000V DC electric field, two metal plates are added at the bottom of t...

Embodiment 2

[0033] A method for preparing Ce-containing visible light catalytic nanomaterials, including the following steps: weigh 5 mmol copper nitrate and 5 mmol cerium nitrate, and dissolve them in deionized water. The volume of deionized water is 5 times the total molar mass of copper nitrate and cerium nitrate , Mechanically stir until completely dissolved to obtain solution A; weigh 30mmol ammonia and 20mmol diacetyl oxime dissolved in a mixed solution of 200ml ethanol and 200ml water, mechanically stir until completely dissolved to obtain solution B; slowly pour solution B into the solution In A, add 2mmol polyethylene glycol 2000, magnetically stir for 1h (rotor speed is 800r / min), control the pH of the solution to 10.5, and obtain solution C; adopt improved electrospinning to prepare nanometer diameter composite filaments During the preparation process, on the basis of the ±500V DC electric field of the existing electrospinning equipment, two metal plates are added to the bottom o...

Embodiment 3

[0037] A method for preparing Ce-containing visible light catalytic nanomaterials. Weigh 5mmol copper nitrate and 5mmol cerium nitrate, and dissolve them in deionized water. The volume of deionized water is 6 times the total molar mass of copper nitrate and cerium nitrate. Dissolve completely to obtain solution A; weigh 30mmol of triethylamine and 30mmol of sodium citrate (not a dispersant as defined in the present invention) and dissolve in a mixed solution of 300ml of ethanol and 300ml of water, and mechanically stir until completely dissolved to obtain solution B; B slowly pour into solution A, add 2.3mmol polyethylene glycol 2000, magnetically stir for 1h (rotor speed is 800r / min), control the pH of the solution to 11 to obtain solution C; adopt improved electrospinning to prepare nanometer diameter During the preparation process, on the basis of the ±2000V DC electric field of the existing electrospinning equipment, two metal plates are added to the bottom of the synthesis ...

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Abstract

The invention belongs to the technical field of nanomaterials and photocatalytic materials, and particularly relates to a preparation method and application of a rare earth and transition metal composite visible light catalytic material, in particular to a preparation method and application of a Ce-containing visible light catalytic nanomaterial. The invention adopts a method of combining simple chemical synthesis with an external electric field; the method has the characteristics of short reaction time, energy reservation, no possibility of producing industrial wastes, less pollution and suitability for mass production; meanwhile, by controlling the external electric field, the morphology and related properties of prepared Cu-Ce nano-powder are changed and the controllability is good. According to the preparation method and the application disclosed by the invention, the applied electric field is improved, and cross control over a direct-current electric field and an alternating current electric field is adopted.

Description

Technical field [0001] The invention belongs to the technical field of nanomaterials and photocatalytic materials, and particularly relates to a preparation method and application of a rare earth and transition metal composite visible light catalytic material, and in particular to a preparation method and application of a Ce-containing visible light catalytic nanomaterial. Background technique [0002] Methylene blue (chemical formula: C 16 H 18 ClN 3 S, molecular weight: 319.86), is a phenothiazine salt. The special properties of phenothiazine salt make it an excellent color developer, which is widely used in many industrial experiments related to color reaction. However, there are advantages and disadvantages. Due to the rapid development of my country's dye manufacturing and printing and dyeing industry in recent years, according to estimates by related scholars, about 90% of the total amount of inorganic raw materials and 30% of the organic raw materials will be discharged int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83B01J35/10B01J37/34B82Y40/00B82Y30/00C02F1/30C02F101/36C02F101/38
CPCB01J23/002B01J23/83B01J35/004B01J35/1004B82Y30/00B82Y40/00C02F1/30C02F2101/308C02F2101/36C02F2101/38C02F2101/40C02F2305/10
Inventor 刘宣文郭瑞苏娜方圆
Owner 东北大学秦皇岛分校
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