Preparation method of nitro-cobalt phthalocyanine/attapulgite composite photo-catalyst

A technology of nitrocobalt phthalocyanine and attapulgite, which is applied in the field of preparation of nitrocobalt phthalocyanine/attapulgite composite photocatalyst, can solve the problem that the catalytic efficiency is not very high, and achieves high yield, high purity, light Good catalytic activity

Inactive Publication Date: 2016-05-04
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The visible catalytic oxidation technology of metal phthalocyanines is still in the initial stage of exploration and research.

Method used

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  • Preparation method of nitro-cobalt phthalocyanine/attapulgite composite photo-catalyst
  • Preparation method of nitro-cobalt phthalocyanine/attapulgite composite photo-catalyst
  • Preparation method of nitro-cobalt phthalocyanine/attapulgite composite photo-catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Pretreatment of attapulgite

[0027] Add 2 g of attapulgite and 200 mL of concentrated nitric acid into a 250 mL three-necked flask, and reflux and condense at 120 ° C for 8 h. HNO removal after natural cooling to room temperature 3 Clear solution, then diluted with deionized water to remove HNO 3 The clear solution was diluted repeatedly, then filtered with a Buchner funnel, and finally dried in an oven.

[0028] (2) Preparation of nitrocobalt phthalocyanine

[0029] Weigh 3.820g (4mmol) of 3-nitrophthalonitrile and 1.000g (1mmol) of cobalt chloride into a 250ml three-neck flask, add 100mL of n-amyl alcohol, and then add 3mL of catalyst DBU dropwise. Heated and stirred under the protection of nitrogen, and refluxed to condense, and the reaction was started when the temperature reached 130° C. for 8 hours. After cooling and standing to room temperature, suction filtration was performed with a Buchner funnel, and then rinsed with methanol until the filtrate was c...

Embodiment 2

[0033] (1) Pretreatment of attapulgite

[0034] Add 5 g of attapulgite and 200 mL of concentrated nitric acid into a 250 mL three-necked flask, and reflux at 150 ° C for 10 h. HNO removal after natural cooling to room temperature 3 Clear solution, then diluted with deionized water to remove HNO 3 The clear liquid was diluted repeatedly, then filtered with a Buchner funnel, and finally dried in an oven.

[0035] (2) Preparation of nitrocobalt phthalocyanine

[0036] Weigh 3.820g (4mmol) of 3-nitrophthalonitrile and 1.000g (1mmol) of cobalt chloride into a 250ml three-neck flask, add 100mL of n-amyl alcohol, and then add 7mL of catalyst DBU dropwise. Heated and stirred under the protection of nitrogen, and refluxed to condense, and the reaction was started when the temperature reached 150° C. for 6 h. After cooling and standing to room temperature, suction filtration was performed with a Buchner funnel, and then rinsed with methanol until the filtrate was colorless, then was...

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Abstract

The invention relates to a preparation method of a nitro-cobalt phthalocyanine/attapulgite composite photo-catalyst. The preparation method comprises the steps of attapulgite pretreatment, nitro-cobalt phthalocyanine preparation and nitro-cobalt phthalocyanine/attapulgite composite photo-catalyst preparation. The preparation method has the beneficial effects of high nitro-cobalt phthalocyanine/attapulgite composite photo-catalyst preparation yield and high purity. Effective degradation of pollutant malachite green is realized, and the photo-catalytic activity of the nitro-cobalt phthalocyanine/attapulgite composite photo-catalyst is obviously better than that of pure nitro-cobalt phthalocyanine particles.

Description

technical field [0001] The invention belongs to the field of photocatalytic material preparation, and relates to a preparation method of a nitrocobalt phthalocyanine / attapulgite composite photocatalyst. Background technique [0002] Phthalocyanine has good catalytic activity, stable chemical properties and good light / heat stability. The central cavity of phthalocyanine contains two hydrogen atoms that can be replaced by other elements, and there are about 70 kinds of replaceable elements. There are 9 carbon-nitrogen conjugated double bonds around the central hole of phthalocyanine. The excellent photoelectric properties of phthalocyanine are due to the electron delocalization effect of the phthalocyanine conjugated system. Phthalocyanine has a highly planar macrocyclic ligand. , so that the catalytic reaction can take place in the axial position of the plane. [0003] The visible catalytic oxidation technology of metal phthalocyanine is still in the initial stage of explor...

Claims

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Application Information

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IPC IPC(8): B01J31/26C02F1/32C02F101/38
CPCB01J31/26B01J2531/0213B01J2531/845C02F1/32C02F2101/30C02F2305/10
Inventor 李忠玉居丽君董美君梁倩徐松
Owner CHANGZHOU UNIV
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