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Preparation method for cobalt-loaded ordered mesoporous carbon material and application of cobalt-loaded ordered mesoporous carbon material in process of catalyzing oxone to degrade rhodamine B in wastewater

A mesoporous carbon and cobalt-loaded technology, applied in other chemical processes, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve problems such as ecological environment and human health hazards, achieve high removal efficiency, large removal capacity, The effect of improving efficiency

Inactive Publication Date: 2018-05-08
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] in Co 2+ / Oxone oxidation system, Co 2+ As a catalyst, it can promote SO 4 •- A large number of free radicals are generated to ensure the smooth progress of the oxidation reaction. However, cobalt is a heavy metal element and has potential harmful effects on the ecological environment and human health.

Method used

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  • Preparation method for cobalt-loaded ordered mesoporous carbon material and application of cobalt-loaded ordered mesoporous carbon material in process of catalyzing oxone to degrade rhodamine B in wastewater
  • Preparation method for cobalt-loaded ordered mesoporous carbon material and application of cobalt-loaded ordered mesoporous carbon material in process of catalyzing oxone to degrade rhodamine B in wastewater
  • Preparation method for cobalt-loaded ordered mesoporous carbon material and application of cobalt-loaded ordered mesoporous carbon material in process of catalyzing oxone to degrade rhodamine B in wastewater

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Experimental program
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Effect test

Embodiment 1

[0021] (1) Add 0.22g of resorcinol, 0.12g of melamine and 0.32g of formaldehyde into 20mL of deionized water and dissolve them by stirring. After completely dissolving to form a uniform solution, continue stirring for 0.5h to obtain solution A. Add 0.36g of F127 (EO 106 PO 70 EO 106 , Pluronic F127) particles were added to 40mL deionized water, stirred until completely dissolved to obtain solution B, solution B was added to solution A, mixed and stirred for 2 hours, the mixed solution was placed in a hydrothermal reaction kettle for hydrothermal reaction at 130°C After cooling to room temperature for 10 hours, the product was left to stand and separated, and was centrifuged and washed three times with deionized water and ethanol respectively to obtain pink melamine-phenolic resin balls, which were then dried at 60°C, ground, and then dried under anaerobic conditions for 4 The heating rate of ℃ / min was raised to 700 ℃ and roasted for 2 hours to obtain the mesoporous carbon sup...

Embodiment 2

[0025] At room temperature, when 5 mL of Oxone solution with a molar concentration of 0.01 mol / L was added to 100 mL of Rhodamine B wastewater with a mass concentration of 25 mg / L, the degradation efficiency was 99.46% in 3 hours and the degradation rate could eventually reach 100%.

Embodiment 3

[0027] (1) Add 0.22g of resorcinol, 0.12g of melamine and 0.32g of formaldehyde into 20mL of deionized water and dissolve them by stirring. After completely dissolving to form a uniform solution, continue stirring for 0.5h to obtain solution A. Add 0.36g of F127 (EO 106 PO 70 EO 106 , Pluronic F127) particles were added to 40mL deionized water, stirred until completely dissolved to obtain solution B, solution B was added to solution A, mixed and stirred for 2 hours, the mixed solution was placed in a hydrothermal reaction kettle for hydrothermal reaction at 130°C After cooling to room temperature for 10 hours, the product was left to stand and separated, and was centrifuged and washed three times with deionized water and ethanol respectively to obtain pink melamine-phenolic resin balls, which were then dried at 60°C, ground, and then dried under anaerobic conditions for 4 The heating rate of ℃ / min was raised to 700 ℃ and roasted for 2 hours to obtain the mesoporous carbon sup...

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Abstract

The invention discloses a preparation method for a cobalt-loaded ordered mesoporous carbon material and an application of the cobalt-loaded ordered mesoporous carbon material in the process of catalyzing oxone to degrade rhodamine B in wastewater, and belongs to the technical fields of synthesis of mesoporous carbon materials and organic wastewater treatment. The key points of the technical schemeare as follows: melamine is used as a nitrogen source, F127 is used as a template agent, melamine-phenolic resin balls are prepared through a polycondensation reaction of resorcinol and formaldehydeby adopting a hydrothermal method, high-temperature calcination is performed, so that a mesoporous carbon carrier is obtained, and the mesoporous carbon carrier and a cobalt sulfate solution are further subjected to a hydrothermal reaction to synthesize the cobalt-loaded ordered mesoporous carbon material, wherein with the change of the ratio of the raw materials, a series of cobalt-loaded orderedmesoporous carbon materials can be obtained, so that the efficiency of catalyzing the oxone to degrade the rhodamine B in the wastewater is effectively improved. The cobalt-loaded ordered mesoporouscarbon material prepared by the method of the invention can effectively remove the rhodamine B in the water body, has large removal capacity, large adsorption capacity, high removal efficiency and convenient operation, is insoluble in the water body, can be recycled, and has good adsorption catalytic performance.

Description

technical field [0001] The invention belongs to the technical field of synthesis of mesoporous carbon materials and treatment of organic wastewater, in particular to a preparation method of cobalt-loaded ordered mesoporous carbon materials and its application in catalytic Oxone degradation of rhodamine B wastewater. Background technique [0002] Rhodamine B is commonly used for industrial staining and for chemical analysis in chemical or biological laboratories. Therefore, textile, printing and dyeing, papermaking, tanning and other industrial production and laboratories discharge waste water containing rhodamine B for a long time, which pollutes water bodies and has high toxicity, carcinogenicity and water solubility. Rhodamine B is easy to degrade under light conditions to form intermediate products such as aromatic amines, which seriously endangers the normal metabolism of aquatic organisms and has a huge impact on water quality. [0003] Carbon material is a relatively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F1/72B01J23/75B01J35/08C02F101/30
CPCB01J20/20C02F1/283C02F1/725B01J23/75C02F2101/30B01J35/51
Inventor 皮运清曹阳丹高会芹赵鹏闫旭马灵甲曹治国孙剑辉
Owner HENAN NORMAL UNIV
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