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Method of preparing metalloporphyrin/silicon dioxide degradation agent

A metalloporphyrin and silicon dioxide technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problem of reduced catalytic activity, easy oxidation and irreversible aggregation and other problems, to achieve the effect of easy reaction, wide practicability and good degradation effect

Inactive Publication Date: 2007-09-12
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Metalloporphyrin itself has two defects: it is easy to be oxidized and irreversibly aggregated, which reduces the catalytic activity

Method used

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  • Method of preparing metalloporphyrin/silicon dioxide degradation agent

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Experimental program
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Effect test

preparation Embodiment 1

[0018] Add 1g tetrahydroxycobalt porphyrin (CoTHPP) into a 2L flask, add 300mL THF, add 380mL TEOS and 130mL 4mol.L -1 Ammonia, fully stirred at room temperature for 8 hours, then put it into an oven, kept at 150-170°C for 2 hours, took out the reactant, and used CH 3 OH and THF washing, drying, prepared Tetrahydroxycobalt porphyrin / SiO 2 Degradant (CoTHPP / SiO 2 ), and its loading was calculated to be 1.21% by atomic absorption spectrometry.

preparation Embodiment 2

[0020] Add 1g of tetrahydroxyiron porphyrin (FeTHPP) into a 2L flask, add 300mL THF, add 380mL TEOS and 130mL 4mol.L -1 Ammonia, fully stirred at room temperature for 8 hours, then put it into an oven, kept at 150-170°C for 2 hours, took out the reactant, and used CH 3 OH and THF washing, drying, prepared Tetrahydroxyiron porphyrin / SiO 2 Degradant (FeTHPP / SiO 2 ), and its loading was calculated to be 1.4% by atomic absorption spectrometry.

preparation Embodiment 3

[0022] Add 1g tetrahydroxycopper porphyrin (CuHPP) into a 2L flask, add 300mL THF, add 380mL TEOS and 130mL 4mol.L -1 Ammonia, fully stirred at room temperature for 8 hours, then put it into an oven, kept at 150-170°C for 2 hours, took out the reactant, and used CH 3 OH and THF washing, drying, prepared tetrahydroxycopper porphyrin / SiO 2 Degradant (CuHPP / SiO 2 ), using atomic absorption spectrometry to calculate its load as 1.32%

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Abstract

This invention relates to a method for preparing degradation agent of organic infectants, characterizing in dissolving a metal porphyrin derivant in an organic solvent then adding metasilicic acid ethyl and a catalyst[HNR2 (R refers to cymene, ethyl, propyl, butyl, H or phenyl), HCl, H2SO4, MeC6H4SO3H, AcOH, Al2O3, ZnO or M(OH)n (M is a metal, n=1,2)] in the mol ratio: 0.002-0.006 : 1, mixing them fully and heating them for reacting sufficiently then to be cleaned with an organic solvent of 100-400ml / g metal porphyrin derivant to be dried to get the metal porphyrin / SiO2 degradation agent.

Description

technical field [0001] The invention relates to the field of fine chemicals, in particular to a method for preparing a degradation agent for degrading organic pollutants. The catalyst is especially suitable for dye wastewater (various active dyes), p-nitrobenzoic acid, p-aminobenzoic acid, and trichlorophenol aromatic organic pollutants or their mixtures. Background technique [0002] Water pollution is one of the serious problems facing our country. Industrially, methods such as adsorption and flocculation are commonly used to treat wastewater. These methods have the advantages of simple equipment, easy operation, and simple process. However, this type of treatment equipment usually transfers organic matter from liquid phase to solid phase or gas phase, and does not completely eliminate organic pollutants. It has its own advantages and disadvantages in terms of treatment efficiency, removal effect, and secondary pollution. Biological treatment methods have been widely use...

Claims

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Application Information

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IPC IPC(8): C02F1/72B01J31/22C02F103/30C02F101/30
Inventor 吕素芳李美江伍川蒋可志邱化玉陈利民
Owner HANGZHOU NORMAL UNIVERSITY
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