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Preparation method of magnetic cobalt-loaded ordered mesoporous carbon material, and applications of magnetic cobalt-loaded ordered mesoporous carbon material in catalytic degradation of levofloxacin waste water with Oxone

A technology of levofloxacin and mesoporous carbon, which is applied in chemical instruments and methods, catalyst activation/preparation, oxidized water/sewage treatment, etc., can solve problems such as ecological environment and human health hazards, and achieves low cost, simple preparation steps, and degradation. Efficient effect

Inactive Publication Date: 2018-04-10
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] in Co 2+ / Oxone oxidation system, Co 2+ (cobalt ions) as a catalyst 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 of magnetic cobalt-loaded ordered mesoporous carbon material, and applications of magnetic cobalt-loaded ordered mesoporous carbon material in catalytic degradation of levofloxacin waste water with Oxone
  • Preparation method of magnetic cobalt-loaded ordered mesoporous carbon material, and applications of magnetic cobalt-loaded ordered mesoporous carbon material in catalytic degradation of levofloxacin waste water with Oxone

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Experimental program
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Effect test

Embodiment 1

[0017] (1) Dissolve 1.400g of cobalt sulfate heptahydrate in 25.00mL of deionized water, then add 30.00mL of sodium hydroxide solution with a molar concentration of 0.33mol / L and 4.0mL of ammonia solution, and then place the mixed solution in a stainless steel autoclave Treated at 120°C for 12h, followed by centrifugal washing and drying, and then heated at 450°C in air for 3h to obtain Co 3 o 4 solid;

[0018] (2) Add 0.025g Co 3 o 4 Put the solid into a stoppered Erlenmeyer flask and add 30mL of deionized water, ultrasonic for 15min, then add 0.22g of resorcinol, 0.12g of melamine and 0.32g of formaldehyde, stir and disperse evenly to obtain solution A, and mix 0.36g of F127 (EO 106 PO 70 EO 106 , Pluronic F127) particles were added to 30mL deionized water, stirred until completely dissolved to obtain solution B, then solution B was added to solution A, mixed and stirred for 2 hours, the mixed solution was placed in a hydrothermal reaction kettle and heated at 130°C Re...

Embodiment 2

[0021] At room temperature, 5 mL of 0.01 mol / L Oxone was added to 100 mL of 10 mg / L levofloxacin solution, and the mixed solution was placed on a magnetic stirrer for degradation. The degradation rate was 0.86% within 2 hours.

Embodiment 3

[0023] (1) Dissolve 1.400g of cobalt sulfate heptahydrate in 25.00mL of deionized water, then add 30.00mL of sodium hydroxide solution with a molar concentration of 0.33mol / L and 4.0mL of ammonia solution, and then place the mixed solution in a stainless steel autoclave Treated at 120°C for 12h, followed by centrifugal washing and drying, and then heated at 450°C in air for 3h to obtain Co 3 o 4 solid;

[0024] (2) Add 0.02g Co 3 o 4 Put the solid into a stoppered Erlenmeyer flask and add 30mL of deionized water, ultrasonic for 15min, then add 0.22g of resorcinol, 0.12g of melamine and 0.32g of formaldehyde, stir and disperse evenly to obtain solution A, and mix 0.36g of F127 (EO 106 PO 70 EO 106 , Pluronic F127) particles were added to 30mL deionized water, stirred until completely dissolved to obtain solution B, then solution B was added to solution A, mixed and stirred for 2 hours, the mixed solution was placed in a hydrothermal reaction kettle and heated at 130°C Rea...

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Abstract

The invention discloses a magnetic cobalt-loaded ordered mesoporous carbon material, and applications of magnetic cobalt-loaded ordered mesoporous carbon material in catalytic degradation of levofloxacin waste water with Oxone, and belongs to the technical field of mesoporous carbon material synthesis and organic waste water treatment. According to the preparation method, cobaltous sulfate heptahydrate, sodium hydroxide, and ammoniacal liquor are taken as raw materials to prepare Co3O4 solid, and the obtained Co3O4 solid, melamine, and F127 are subjected to hydrothermal reaction so as to obtain the magnetic cobalt-loaded ordered mesoporous carbon material. The magnetic cobalt-loaded ordered mesoporous carbon material is relatively high in specific surface area and pore volume; an oxidationsystem composed of the magnetic cobalt-loaded ordered mesoporous carbon material and Oxone possesses high degradation efficiency on levofloxacin waste water, no toxic or harmful side product is generated in degradation process, and recycling is realized.

Description

technical field [0001] The invention belongs to the technical field of synthesis of mesoporous carbon materials and treatment of organic wastewater, and in particular relates to a preparation method of magnetic cobalt-loaded ordered mesoporous carbon materials and its application in catalytic Oxone degradation of levofloxacin wastewater. Background technique [0002] Levofloxacin is one of the quinolones. It has broad-spectrum antibacterial effect and strong antibacterial effect. It has strong antibacterial activity against most Enterobacteriaceae bacteria and Gram-negative bacteria, and the effect is long-lasting. Therefore, levofloxacin has been widely used clinically. Due to their long half-lives, traditional water treatment techniques cannot effectively remove these drugs, so their potential harm to public health has attracted widespread attention. [0003] Oxone (2KHSO 5 ·KHSO 4 ·K 2 SO 4 ) is a potassium monopersulfate compound salt, it is a free-flowing white pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75B01J37/10B01J37/08C02F1/72C02F101/36C02F101/34C02F101/38
CPCC02F1/725B01J23/75B01J37/082B01J37/10C02F2101/38C02F2101/34C02F2101/36B01J35/33
Inventor 皮运清曹阳丹高会芹赵鹏郑立庆马灵甲董淑英孙剑辉
Owner HENAN NORMAL UNIV
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