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Active carbon fiber-loaded NaBiO3-based composite oxide and preparation method thereof, and method for degrading organic dye waste water by using composite oxide

A composite oxide and activated carbon fiber technology, applied in chemical instruments and methods, oxidized water/sewage treatment, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of complex reaction equipment requirements and high energy demand , to achieve the effect of easy large-scale production and use, strong applicability, and simple equipment requirements

Inactive Publication Date: 2014-03-12
SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is: aiming at the relatively high demand for energy in the existing process for treating organic dye wastewater, and the defect that the reaction equipment requires complex requirements, a kind of activated carbon fiber-loaded based NaBiO 3 Composite oxide and its preparation method and method of using it to degrade organic dye wastewater

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Activated carbon fibers were washed with 25% ammonia solution for 20 minutes, then 45% nitric acid for 20 minutes, acetone for 10 minutes, deionized water three times, and dried for use.

[0024] Weigh 0.45gNaBiO 3 with 0.2gAgNO 3 Synthesize BSO, with 0.55g NaBiO 3 Composite oxide functional materials are prepared by mixing. Weigh 1.5g of epoxy resin and the composite oxide functional material prepared above in 2L of acetone and mix at high speed for 1h, then weigh 6g of activated carbon fiber and impregnate it into the above acetone solution, take out the loaded activated carbon fiber after 1.5h, and vacuum dry Dry for 4h, finally in N 2 Heat treatment for 2h under protection to obtain the final material-activated carbon fiber-loaded NaBiO-based 3 of composite oxides.

[0025] Prepare 100mg / L saffron red aqueous solution to simulate dye wastewater, and measure 500mL dye solution into the reactor. The reactor can be a simple container with stirring function. The ...

Embodiment 2

[0027] Activated carbon fibers were washed with 30% ammonia solution for 15 minutes, then with 30% nitric acid for 25 minutes, then with acetone for 10 minutes, and finally washed 3 times with deionized water, and dried for later use.

[0028] Weigh 0.3gNaBiO 3 with 0.1gAgNO 3 Synthetic BSO, with 0.6g NaBiO 3 Composite compound oxide functional material is prepared by mixing. Weigh 2.5g of epoxy resin and the composite oxide functional material prepared above in 1.5L acetone and mix at high speed for 1.5h, then weigh 7g of activated carbon fiber and impregnate it into the above-mentioned acetone solution, take out the loaded activated carbon fiber after 2h, vacuum Dry for 4.5h, and finally in N 2 Heat treatment for 2h under protection to obtain the final material-activated carbon fiber-loaded NaBiO-based 3 of composite oxides.

[0029] Prepare 80mg / L crystal violet aqueous solution to simulate dye wastewater, and measure 300mL dye solution into the reactor. The reactor c...

Embodiment 3

[0031] Activated carbon fibers were washed with 20% ammonia solution for 25 minutes, then washed with 30% nitric acid for 15 minutes, then washed with acetone for 10 minutes, finally washed twice with deionized water, and dried for later use.

[0032] Weigh 0.3gNaBiO 3 with 0.08gAgNO 3 Synthesize BSO, with 0.9g NaBiO 3 Composite compound oxide functional material is prepared by mixing. Weigh 2.5g of epoxy resin and the composite oxide functional material prepared above and mix them in 4L of acetone at high speed for 2 hours, then weigh 7g of activated carbon fibers and impregnate them into the above-mentioned acetone solution, take out the loaded activated carbon fibers after 2 hours, and dry them in vacuum 4.5h, finally at N 2 Heat treatment for 2h under protection to obtain the final material-activated carbon fiber-loaded NaBiO-based 3 of composite oxides.

[0033] Prepare 75mg / L Azure B aqueous solution to simulate dye wastewater, and measure 800mL of dye solution into...

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Abstract

The invention discloses an active carbon fiber-loaded NaBiO3-based composite oxide and a preparation method thereof and a method for degrading organic dye waste water by using the composite oxide. The preparation method comprises the following steps: successively cleaning an active carbon fiber with ammonia water, nitric acid, acetone and deionized water and drying the active carbon fiber for subsequent usage; synthesizing BSO from NaBiO3 and AgNO3 in a liquid phase and preparing a composite function material according to a mass ratio of BSO to NaBiO3 of 1: 1-3; and placing an epoxy resin and the composite function material according to a weight ratio of 1.5-2.5: 1 into a container containing acetone, carrying out high speed stirring, dipping the active carbon fiber 5 to 10 times of the mass of the composite oxide function material into an acetone solution for 2 h and successively subjecting the active carbon fiber to vacuum drying and then to heat treatment under the protection of N2 so as to obtain the composite oxide. The degradation method comprises the following steps: adding 2 to 5 g / L of the composite oxide into the organic dye waste water under irradiation by visible light; carrying out stirring at room temperature and normal pressure; and discharging waste water through centrifugation after basic decolouring of the waste water. The degradation method provided by the invention has the advantages of simple requirements on equipment, low energy consumption, convenient operation and capacity of achieving the purposes of decolouring, degradation and mineralization of the dye waste water in a short period of time.

Description

Technical field: [0001] The invention belongs to the technical field of organic dye wastewater treatment, and relates to an activated carbon fiber-based NaBiO 3 The composite oxide, its preparation method and the method of using it to degrade organic dye wastewater. Background technique: [0002] In recent years, organic dyes have been widely used in modern industrial fields, such as a large number of branches of textile industry, leather industry, paper industry, food industry, agricultural research, photoelectrochemical cells, hair dyeing, etc. According to the structure, organic dyes can be divided into azo dyes, quinones, sulfur, indigo, trityl, and phthalocyanine. According to the figures released by the National Bureau of Statistics, the annual output and trade volume of dyestuffs in my country rank first in the world. my country is a big textile country. The printing and dyeing industry discharges more than 4 million tons of wastewater every day, accounting for 1 / 10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/18C02F1/30C02F1/72
Inventor 喻恺罗启仕张长波朱杰高洁
Owner SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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