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Metal phthalocyanine loaded fiber with catalytic activity and preparing method

A metal phthalocyanine and catalytically active technology, applied in the field of metal phthalocyanine supported fibers and their preparation, can solve the problems of reducing axial coordination active points, reducing catalytic efficiency, forming inactivity, etc., reducing secondary pollution, improving Utilization, simple effect of equipment

Inactive Publication Date: 2007-01-24
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the structure of metallophthalocyanine, it has a tendency to form inactive dimers or even polymers in solution.
The formation of dimers will reduce the active sites for axial coordination, leading to a drastic reduction in catalytic efficiency
In order to reduce the aggregation of phthalocyanine molecules in the solution and achieve the purpose of improving the catalytic efficiency, people began to study loading phthalocyanine on the carrier to reduce its aggregation, but most of the methods currently used are to load it to the carrier through ionic bonding. On, the fastness after loading is poor

Method used

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  • Metal phthalocyanine loaded fiber with catalytic activity and preparing method
  • Metal phthalocyanine loaded fiber with catalytic activity and preparing method
  • Metal phthalocyanine loaded fiber with catalytic activity and preparing method

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preparation example Construction

[0023] The specific preparation method is as follows: when the selected metal phthalocyanine is a reactive group with a triazine structure, it is loaded on the fiber or fabric by the following two methods: first, at a pH of 8 to 11, the reaction At a temperature of 45-95°C, add fibers or fabrics to a certain concentration of metal phthalocyanine aqueous solution with a triazine structure, stir continuously during the reaction, take out the fibers or fabrics after the reaction, and wash them with alkali and water respectively , drying to obtain metal phthalocyanine-loaded fibers or fabrics; second, dissolving reactive metal phthalocyanines in water, adjusting the pH to 8-11, immersing the fibers or fabrics in the above solution for a period of time or by padding The metal phthalocyanine with a triazine structure is adsorbed on the fiber or fabric, and then the metal phthalocyanine is steamed at high temperature to form a covalent bond between the fiber or fabric. After the react...

Embodiment 1

[0027] Weigh 2g of viscose fiber after vacuum drying, remove the organic impurities attached to the fiber with acetone, put it into the pre-prepared tetrakis (2,4-dichloro-1,3,5-triazinyl) cobalt amino In the phthalocyanine solution (1% o.w.f.), the concentration of Pingping O is 2g / L, the bath ratio is 1:30, the reaction is shaken at 25°C for 30min, and the temperature is raised to 65°C at a speed of 1°C / min, and then added to the reaction solution Add 0.24g of Na 2 CO 3 , so that the initial concentration is 4g / L, constant temperature oscillation reaction for 1h, the taken out fibers are washed once with warm water and cold water, dried and then put into 2g / L Na with a bath ratio of 1:60 2 CO 3Treat it in the solution at 60°C for 30 minutes, take it out after washing with water, and boil it in 2 g / L Pingping O solution for 15 minutes. Finally, the obtained fibers were rinsed twice with double distilled water, and dried under reduced pressure at room temperature (25° C.) t...

Embodiment 2

[0029] Weigh 2g of viscose fiber after vacuum drying, use acetone to remove the organic impurities attached to the fiber, put it into the pre-prepared four (2,4-dichloro-1,3,5-triazinyl) amino iron In the phthalocyanine solution (1% o.w.f.), the concentration of Pingping O is 2g / L, the bath ratio is 1:30, the reaction is shaken at 25°C for 30min, and the temperature is raised to 65°C at a speed of 1°C / min, and then added to the reaction solution Add 0.24g of Na 2 CO 3 , so that the initial concentration is 4g / L, constant temperature oscillation reaction for 1h, the taken out fibers are washed once with warm water and cold water, dried and then put into 2g / L Na with a bath ratio of 1:60 2 CO 3 Treat it in the solution at 60°C for 30 minutes, take it out after washing with water, and boil it in 2 g / L Pingping O solution for 15 minutes. Finally, the obtained fibers were rinsed twice with twice distilled water, and dried under reduced pressure at room temperature (25° C.) to ob...

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Abstract

The present invention relates to a metal phthalocyanine fiber-supported metal phthalocyanine having catalytic activity and preparation method, said metal phthalocyanine with fiber or fabric through covalent bond conjoint mode combining to form supported fiber having catalytic activity. The used etal phthalocyanine is transition metal ion such as characterized in having the structure of formula 1, in which M is a Fe,Co,Cu,Mn,Rb,Al,Zn and Ni; R1,R2,R3,R4 each can be H, any of the five in formular (1), and others are all H, the construction of the radical R5 can be -NH2, -NHCOCH3, -NHSO3Na, and -NHSO3H. Said preparation method is selecting metal phthalocyanine as reactive group having triazine structure under pH 8- 11 reaction temperature 45 -95 degree centigrade condition, adding fiber or fabric to finite concentration reactivity metal phthalocyanine aqueous solution, continuously stirring, after reaction taking out fiber or fabric and respectively to make caustic washing and water washing, drying to obtain fiber-supported metal phthalocyanine or fabric. Said invention has simple equipment, easy to operate etc advantages.

Description

technical field [0001] The invention relates to a metal phthalocyanine-loaded fiber with catalytic activity and a preparation method thereof, belonging to the technical fields of materials, chemistry and chemical industry. Background technique [0002] Metal phthalocyanine has many excellent properties such as heat resistance, light resistance, acid and alkali resistance, etc. When used as a catalyst, it can catalyze dozens of organic reactions, including hydrogen exchange reaction, hydrogenation reaction, reduction of nitrogen oxides and acetylene Reaction, decomposition reaction of peroxide, hydrogen peroxide and formic acid, synthesis of ammonia reaction, decarboxylation reaction, hydroxylation reaction of aromatic hydrocarbons, dehydrogenation reaction, electrochemical reaction and oxidation reaction. However, due to the structure of metallophthalocyanine, it tends to form inactive dimers or even polymers in solution. The formation of dimers will reduce the active sites...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/358D06M13/53D06M23/00D06M101/02D06M101/16D06M101/40
Inventor 陈文兴吕慎水
Owner ZHEJIANG SCI-TECH UNIV
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