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Calcium alginate supported metal phthalocyanine microsphere catalytic material and preparation method thereof

A metal phthalocyanine, calcium alginate technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problem of non-metallic phthalocyanine catalytic degradation of organic pollutants Carry out research on performance and other issues to achieve the effect of easy recycling and reusability, and solve the problem of reunion

Active Publication Date: 2014-09-03
HUZHOU TEACHERS COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The two invention patents published in 2012 were for the preparation of bipolar membranes, and did not conduct research on the catalytic performance of metal phthalocyanines for the degradation of organic pollutants

Method used

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  • Calcium alginate supported metal phthalocyanine microsphere catalytic material and preparation method thereof
  • Calcium alginate supported metal phthalocyanine microsphere catalytic material and preparation method thereof
  • Calcium alginate supported metal phthalocyanine microsphere catalytic material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] First, 0.1 g of tetracarboxyiron phthalocyanine (FePc) was dissolved in 10 mL of distilled water, ultrasonically oscillated for 30 minutes, then stirred for 18 hours to fully dissolve. Weigh 5g of sodium alginate and dissolve it in 100mL of distilled water at about 60°C, stir for 2 hours to finally obtain a light yellow colloidal substance. After both were fully dissolved, the phthalocyanine solution was slowly poured into the alginate gel and mixed with constant stirring for 2 hours. Put the dissolved sodium phthalocyanine alginate colloid in a vacuum drying oven for degassing. After the degassing is completed, pour the colloid into a 10mL disposable needle tube and add it dropwise to 50mL of 5% (mass) calcium chloride solution to form a ball. , and stood still for 12 hours, soaked in distilled water to remove the phthalocyanine on the surface of the microspheres. The loading of FePc in the loaded calcium alginate microspheres (FePc-SA-Ca) is 0.09% (mass percentage), ...

Embodiment 2

[0042] Firstly, 0.1 g of the prepared tetracarboxyl zinc phthalocyanine (ZnPc) was weighed and dissolved in 10 mL of distilled water, ultrasonically oscillated for 30 min, then placed on a stirrer and stirred for 18 hours. Weigh 1.0g of sodium alginate and slowly add it to 40mL of distilled water at about 20°C to dissolve, and keep stirring. After both were fully dissolved, the phthalocyanine solution was slowly poured into the alginate gel and mixed with constant stirring for 10 hours. The mixed gel was placed in a 10 mL syringe, freely dropped into 500 mL of 0.5% (mass) calcium chloride solution, formed into a ball, and stood still for 3 hours, soaked in distilled water to remove the phthalocyanine on the surface of the microsphere. The loading amount of ZnPc in the calcium alginate microspheres (ZnPc-SA-Ca) is 0.20% (mass percentage), the average diameter of the microspheres is about 3.6mm, and the average diameter of the microspheres after drying is about 1.3mm.

[0043] ...

Embodiment 3

[0045] Firstly, 0.5 g of the prepared tetracarboxyl zinc phthalocyanine (ZnPc) was weighed and dissolved in 10 mL of distilled water, ultrasonically oscillated for 30 min, then placed on a stirrer and stirred for 18 hours. Weigh 2g of sodium alginate and slowly add it to 40mL of distilled water at about 50°C to dissolve, and keep stirring. After both were fully dissolved, the phthalocyanine solution was slowly poured into the alginate gel and mixed with constant stirring for 10 hours. The mixed gel was placed in a 10 mL syringe, freely dropped into 300 mL of 5% (mass) calcium chloride solution, formed into a ball, and stood still for 3 hours, soaked in distilled water to remove the phthalocyanine on the surface of the microsphere. The loading amount of ZnPc in the calcium alginate microspheres (ZnPc-SA-Ca) is 0.95% (mass percentage), the average diameter of the microspheres is about 3.2mm, and the average diameter of the microspheres after drying is about 1.2mm.

[0046] The ...

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Abstract

The invention relates to a catalytic material and a preparation method thereof and in particular relates to a calcium alginate supported metal phthalocyanine microsphere catalytic material and a preparation method thereof. The preparation method of the microsphere catalytic material comprises the following steps: dissolving a certain mass of water-soluble metal phthalocyanine in water to form a solution, dissolving sodium alga acid in water at the temperature of 20-60 DEG C to form faint yellow gel, slowly pouring the phthalocyanine solution into the sodium alga acid gel, continuously stirring and mixing, defoaming in vacuum to obtain brilliant green-dark green mixed gel, dropwise adding the mixed gel into a certain mass fraction of calcium chloride solution to obtain calcium alginate supported metal phthalocyanine microspheres. Calcium alginate is good in spheronization, and the calcium alginate supported metal phthalocyanine catalyst is high in catalytic activity and reusability and has the advantages of recyclability, no toxicity and environmental friendliness.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to a calcium alginate-supported metal phthalocyanine microsphere catalytic material and a preparation method thereof. Background technique [0002] In the fields of chemical synthesis, materials, energy and environmental treatment, the preparation, modification and application of metal phthalocyanine, a catalytic material, has always been a research hotspot. Metal phthalocyanine is an important catalyst because of its stable chemical properties, acid resistance, alkali resistance, water immersion resistance, heat resistance, light resistance and resistance to various organic solvents. The thermal decomposition temperature of phthalocyanine compounds is above 450°C, their solubility in organic solvents is extremely small, and they are almost insoluble in water. Phthalocyanine, which has a similar structure to porphyrin, has activity and selectivity similar to biologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22
Inventor 徐敏虹陈海锋曹枫潘国祥唐培松
Owner HUZHOU TEACHERS COLLEGE
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