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Preparation method for bamboo pulp cellulose-based integrated Fenton catalyst Fe<3+>C2O4/R

An integrated Fenton and cellulose-based technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve high oxidation cost, low degradation efficiency, Fenton To solve the problems such as the difficulty of recycling the reagents, to expand the range of raw materials and increase economic income

Inactive Publication Date: 2015-05-27
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the traditional Fenton oxidation process of industrial wastewater treatment, the Fenton reagent is difficult to recycle and cause secondary pollution, high oxidation cost, low degradation efficiency and other problems, and at the same time resource utilization of my country's rich bamboo resources to prepare high value-added renewable new materials , the object of the present invention is to provide a kind of bamboo pulp cellulose base integrated Fenton catalyst Fe 3+ C 2 o 4 Preparation method of / R

Method used

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  • Preparation method for bamboo pulp cellulose-based integrated Fenton catalyst Fe&lt;3+&gt;C2O4/R
  • Preparation method for bamboo pulp cellulose-based integrated Fenton catalyst Fe&lt;3+&gt;C2O4/R
  • Preparation method for bamboo pulp cellulose-based integrated Fenton catalyst Fe&lt;3+&gt;C2O4/R

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Effect test

Embodiment 1

[0017] 1) Pulverize the light bamboo pulp board with a plant grinder, filter it through a 100-mesh sieve to obtain bamboo pulp powder with a particle size of 0.15 mm or less, add the alkaline solution pre-frozen to -10°C and stir vigorously for 4 minutes, and let it stand for 120 minutes min, wherein the alkaline solution is a mixed solution of sodium hydroxide and urea, the mass percentages of sodium hydroxide, urea and deionized water are 6 wt%, 11 wt% and 83 wt%, respectively, bamboo pulp powder and mixed solution are 2 g : 70 mL was mixed and reacted, then taken out and placed in an ice bath for stirring to obtain a uniform transparent bamboo pulp cellulose solution;

[0018] 2) Under the action of mechanical stirring, the bamboo pulp cellulose solution obtained in step 1) was heated to 70°C in a water bath, nitrogen gas was introduced for 20 min, 0.1 g / g ammonium persulfate of bamboo pulp powder was added for 20 min, and 0.5 g / g bamboo pulp powder acrylamide, 2.0 g / g bamb...

Embodiment 2

[0021]1) Pulverize the purple bamboo pulp board with a plant grinder, filter it through a 100-mesh sieve, and obtain bamboo pulp powder with a particle size of 0.15 mm or less, add the alkaline solution pre-frozen to -15°C and stir vigorously for 3 minutes, and let it stand for 90 minutes. min, wherein the alkaline solution is a mixed solution of sodium hydroxide and urea, the mass percentages of sodium hydroxide, urea and deionized water are 5 wt%, 10 wt% and 85 wt%, respectively, bamboo pulp powder and mixed solution are 2 g : 60 mL was mixed and reacted, then taken out and placed in an ice bath for stirring to obtain a uniform transparent bamboo pulp cellulose solution;

[0022] 2) Under the action of mechanical stirring, the bamboo pulp cellulose solution obtained in step 1) was heated to 60°C in a water bath, nitrogen gas was introduced for 30 minutes, 0.15 g / g ammonium persulfate of bamboo pulp powder was added for 15 minutes, and 0.75 g / g bamboo pulp powder acrylamide, ...

Embodiment 3

[0025] 1) Pulverize the purple bamboo pulp board with a plant grinder, filter it through a 100-mesh sieve to obtain bamboo pulp powder with a particle size of 0.15 mm or less, add the alkaline solution pre-frozen to -25°C and stir vigorously for 2 minutes, and let it stand for 60 minutes. min, wherein the alkaline solution is a mixed solution of sodium hydroxide and urea, the mass percentages of sodium hydroxide, urea and deionized water are 4 wt%, 9 wt% and 87 wt%, respectively, bamboo pulp powder and the mixed solution are 2 g : 50 mL was mixed and reacted, then taken out and placed in an ice bath for stirring to obtain a uniform transparent bamboo pulp cellulose solution;

[0026] 2) Under the action of mechanical stirring, the bamboo pulp cellulose solution obtained in step 1) was heated to 50 °C in a water bath, nitrogen gas was passed through for 40 min, and 0.2 g / g ammonium persulfate of bamboo pulp powder was added to trigger for 10 min, followed by adding 1.0 g / g acry...

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Abstract

The invention discloses a preparation method for a bamboo pulp cellulose-based integrated Fenton catalyst Fe<3+>C2O4 / R. The preparation method is characterized in that tri-valent iron and oxalic acid are subjected to coordination to form a complex Fe<3+>C2O4, and the complex Fe<3+>C2O4 is loaded on bamboo pulp cellulose-based porous resin R synthesized by bamboo pulp to form the integrated Fenton catalyst Fe<3+>C2O4 / R; under visible light, hydrogen peroxide can be catalyzed in an acceleration manner to degrade dye type organic pollutants in printing and dyeing wastewater. A product prepared by the method is high in efficiency, environment-friendly and low in cost; the problems of secondary pollution, high oxidization cost, low degrading efficiency and the like which are caused by a fact that the Fenton reagent cannot be repeatedly used in the conventional dye type organic pollutant Fenton oxidization degrading are solved, and the creation concept of using bamboo resources in China in a high value is provided, and thus the preparation method has obvious environmental and social significance.

Description

Technical field [0001] The present invention involves a preparation method for integrated Fanton catalyst, which specializes in a bamboo pulp cellulose based on FETton catalyst FE 3+ C 2 O 4 The preparation method of / R belongs to the field of organic polymer materials. Background technique [0002] Fanton oxidation is one of the important technologies for the deep treatment of industrial wastewater. It is to use the strong oxidation of hydrogen peroxide and binary iron to oxidize the organic matter into the inorganic power to achieve the purpose of degrading organic wastewater.When traditional fenton oxidation is organized in the degradation wastewater, the Fantunton reagent cannot be repeatedly used to cause secondary pollution, high oxidation costs, and low degradation efficiency.In recent years, the use of iron or iron compounds to help multi -phase Fanton degradable water degradation of organic matter has aroused widespread attention from researchers.In the preliminary resea...

Claims

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Application Information

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IPC IPC(8): B01J31/28C02F1/72C02F1/30C02F101/30
Inventor 张勇杨梦梦杨晓刚姚菊明
Owner ZHEJIANG SCI-TECH UNIV
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