Preparation method of porphyrin-based metal organic framework material sensitized oxide type catalyst

An organic framework and metal-based technology, which is applied in the field of preparation of nano-zinc oxide-based catalysts, can solve the problems of narrow light absorption range, low quantum yield, and limited application, and achieve low catalyst cost, wide range of sources, and good catalytic effect Effect

Active Publication Date: 2020-08-11
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, traditional semiconductor materials still have many unsolvable problems, such as low quantum yield, easy deactivation, and narrow light absorption range, which limit their application in the field of photocatalytic degradation. Therefore, the development of new photocatalytic Catalytic materials become a research hotspot at the forefront of disciplines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Synthesis of metal carboxyphenyl porphyrin framework material sensitizer

[0028] Add 0.1mmol carboxyphenylporphyrin and 0.1mmol zinc nitrate hydrate to a mixed solution of 15mL N,N-diethylformamide and 5mL ethanol, and add 1mL ethanol solution of nitric acid to the solution, nitric acid ethanol The concentration of the solution is 0.5mol / L; the mixed solution is uniformly mixed by ultrasonic in a water bath, and kept at a constant temperature of 80°C for 24 hours, and then the temperature is lowered to room temperature by program temperature control, and the cooling time is 30 hours. After filtration, a solid sensitive agent.

[0029] (2) Preparation of Nano Zinc Oxide

[0030] To prepare nano-zinc oxide materials by hydrothermal synthesis, take 1.049g of zinc acetate dihydrate and dissolve it in 50ml of deionized water, add 2.0g of sodium hydroxide, and keep stirring; React for 10 hours; after the reaction is completed, take out the mixed solution in the kettle ...

Embodiment 2

[0037] (1) Synthesis of metal carboxyphenyl porphyrin framework material sensitizer

[0038] Add one of 0.1 mmol of carboxyphenyl porphyrin and 0.8 mmol of copper carboxylate hydrate to a mixed solution of 15 mL of N,N-diethylformamide and 5 mL of ethanol, and add 1 mL of nitric acid in ethanol to the solution solution, the concentration of the ethanol solution of nitric acid is 0.3mol / L; the mixed solution is uniformly mixed by ultrasonic in a water bath, and kept at a constant temperature at 80°C for 24h, and then the temperature is lowered to room temperature by program temperature control, and the cooling time is 24h. The solid sensitizer was obtained after filtration.

[0039] (2) Preparation of Nano Zinc Oxide

[0040] To prepare nano-zinc oxide material by hydrothermal synthesis, take 1.049g of zinc acetate dihydrate and dissolve it in 50ml of deionized water, add 1.0g of sodium hydroxide, and keep stirring; React for 10 hours; after the reaction is completed, take ou...

Embodiment 3

[0047] (1) Synthesis of metal carboxyphenyl porphyrin framework material sensitizer

[0048] Add 0.1mmol of carboxyphenylporphyrin and 1.0mmol of zinc nitrate hydrate to a mixed solution of 15mL of N,N-diethylformamide and 5mL of ethanol, and add 1mL of nitric acid in ethanol to the solution, nitric acid in ethanol The concentration of the solution is 0.2mol / L; the mixed solution is uniformly mixed by ultrasonic in a water bath, and kept at a constant temperature of 80°C for 24 hours, and then the temperature is lowered to room temperature by program temperature control, and the cooling time is 20 hours. After filtration, a solid sensitive agent.

[0049] (2) Preparation of Nano Zinc Oxide

[0050] To prepare nano-zinc oxide material by hydrothermal synthesis, take 1.049g of zinc acetate dihydrate and dissolve it in 50ml of deionized water, add 1.0g of sodium hydroxide, and keep stirring; React for 10 hours; after the reaction is completed, take out the mixed solution in the...

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Abstract

The invention relates to a preparation method of a porphyrin-based metal organic framework material sensitized oxide type catalyst. The porphyrin-based metal organic framework material sensitized oxide type catalyst is used for visible light catalytic degradation treatment of organic pollutants in water. A porphyrin-based metal organic framework material is used as a sensitizer, silver-cerium double-doped zinc oxide is used, and a sensitizing auxiliary agent is introduced, so that a photo-generated charge transmission channel is constructed, and the photocatalytic degradation performance undera visible light condition is enhanced. By investigating the degradation performance of the composite catalyst on a typical organic pollutant methylene blue in water under a visible light condition, the catalyst has good capacity of degrading organic matters in water under visible light.

Description

technical field [0001] The invention relates to a preparation method of a nano-zinc oxide-based catalyst sensitized by a porphyrin-based metal organic framework material for dye sewage treatment. Background technique [0002] In recent years, with the rapid development of modern society and economy, the demand for energy is increasing day by day, and the rapid development of industrial production has a greater impact on the environment. Due to the air pollution caused by the combustion of fossil fuels and the emission of toxic and harmful gases in the process of industrial production, environmental pollution control is imminent. Therefore, the development of new materials and the search for effective pollution control methods have become urgently needed technologies for industrial production. [0003] Semiconductor photocatalysis technology is an advanced oxidation process, which has the advantages of non-toxic, safe and thorough oxidation. Among the many wastewater treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J31/26B01J35/00C02F1/30C02F101/30
CPCB01J35/004B01J31/183B01J31/1815B01J31/26C02F1/30B01J2531/025B01J2531/26C02F2305/10C02F2101/30Y02W10/37
Inventor 朱丽君侯心兰郭丹丹张婷婷夏道宏项玉芝
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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