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A method of preparing porous carbon by adopting spherical zinc oxide as a template and applications of the porous carbon

A technology of zinc oxide and porous carbon, applied in chemical instruments and methods, zinc oxide/zinc hydroxide, and other chemical processes, can solve problems such as pollution and achieve the effect of reducing environmental hazards

Inactive Publication Date: 2015-07-08
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Porous carbon materials are generally synthesized by nano-infusion method. Using mesoporous silica as a hard template, the carbon source is perfused in the pores of mesoporous silica, and the silica / carbon composite material is obtained after high-temperature carbonization. Hydrofluoric acid or sodium hydroxide solution dissolves and removes silicon oxide to obtain porous carbon materials. This method of using strong acid or strong alkali to remove templates has potential pollution to the environment. Therefore, it is necessary to seek a green and environmentally friendly treatment method to reduce environmental risks. The Inevitable Trend of Synthetic Technology Development

Method used

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  • A method of preparing porous carbon by adopting spherical zinc oxide as a template and applications of the porous carbon
  • A method of preparing porous carbon by adopting spherical zinc oxide as a template and applications of the porous carbon

Examples

Experimental program
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Effect test

Embodiment 1

[0025] (1) Preparation of spherical zinc oxide:

[0026] Dissolve citric acid, zinc nitrate and ethylene glycol in deionized water at a molar ratio of 3:1:5, stir for 1 hour, put it in a drying oven at 80°C for 8 hours, then dry it at 130°C for 2 hours, put it in a muffle furnace for sintering , the sintering temperature is 600°C, take it out after 4h, and then naturally cool to room temperature to obtain spherical zinc oxide.

[0027] (2) Preparation of solution A: Fully dissolve phenolic resin and F127 with a mass ratio of 1:1 into absolute ethanol, stir in a water bath stirrer at a constant temperature of 30°C for 6 hours until fully dissolved, and obtain solution A;

[0028] (3) Preparation of composite solid material: uniformly disperse the spherical zinc oxide prepared in step (1) into the solution A of step (2), continue magnetic stirring at 30° C. for 30 min, then pour the sample into a petri dish, Put it at room temperature until the solution is fully volatilized, dr...

Embodiment 2

[0031] (1) Preparation of spherical zinc oxide:

[0032] Dissolve citric acid, zinc nitrate and ethylene glycol in deionized water at a molar ratio of 3:1:15, stir for 4 hours, put it in a drying oven at 80°C for 24 hours, dry it at 130°C for 10 hours, put it in a muffle furnace for sintering , the sintering temperature is 900°C, take it out after 4 hours, and then cool it down to room temperature naturally to obtain spherical zinc oxide.

[0033] (2) Preparation of solution A: Fully dissolve phenolic resin and F127 with a mass ratio of 1:1 into absolute ethanol, stir in a water bath stirrer at a constant temperature of 65°C for 2 hours until fully dissolved, and obtain solution A;

[0034] (3) Preparation of composite solid material: uniformly disperse the spherical zinc oxide prepared in step (1) into the solution A of step (2), continue to stir magnetically at 65°C for 120 min, then pour the sample into a petri dish, Put it at room temperature until the solution is fully v...

Embodiment 3

[0039] (1) Preparation of spherical zinc oxide:

[0040] Dissolve citric acid, zinc nitrate and ethylene glycol in deionized water at a molar ratio of 3:1:12, stir for 2 hours, put it in a drying oven at 80°C for 12 hours, dry it at 130°C for 7 hours, put it in a muffle furnace for sintering , the sintering temperature is 900°C, take it out after 4 hours, and then cool it down to room temperature naturally to obtain spherical zinc oxide.

[0041] (2) Preparation of solution A: Fully dissolve phenolic resin and F127 with a mass ratio of 1:1 into absolute ethanol, stir in a water bath stirrer at a constant temperature of 50°C for 3 hours until fully dissolved, and obtain solution A;

[0042] (3) Preparation of composite solid material: uniformly disperse the spherical zinc oxide prepared in step (1) into the solution A of step (2), continue magnetic stirring at 50° C. for 30 min, then pour the sample into a petri dish, Put it at room temperature until the solution is fully vola...

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Abstract

The invention belongs to the technical fields of functional material preparation and environment protection applications, and discloses a technique of preparing a micro-nano carbon material having a porous structure by a hard template method. A technical scheme of the technique includes subjecting a zinc-source composite material to high-temperature calcination, low-temperature self-assembling and curing to obtain nanometer spherical zinc oxide, adding the spherical zinc oxide which is adopted as a template into an alcohol solution containing phenolic resin, subjecting the composite material to solvent self-volatilization assembling, low-temperature heat curing and high-temperature carbonization, fully dissolving with a prepared diluted hydrochloric acid solution, filtering, washing with water, washing with an alcohol, drying to obtain the porous carbon material, and performing effective adsorption treatment for ciprofloxacin by utilization of the prepared porous carbon material.

Description

technical field [0001] The invention belongs to the technical field of preparation of functionalized materials and application of environmental protection, and relates to the preparation of nanometer materials with special morphology and the technology of preparing micro-nano carbon materials with porous structure by hard template method. Background technique [0002] Ciprofloxacin (CIP), a second-generation product of fluoroquinolones, is a class of broad-spectrum antibiotics widely used to treat bacterial infections in humans and animals. Although these drugs can be metabolized in vivo, up to 90% of the oral dose is directly excreted. In addition, to some extent, the discharge of antibiotics in the industrial production process will also cause environmental pollution. Even low concentrations of ciprofloxacin in sewage and surface water can lead to severe resistance. Because traditional sewage treatment methods and processes are difficult to remove such organic matter, re...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C01G9/02C02F1/28
Inventor 王会琴李金择周明君叶哲菲汤艳峰马长畅关庆丰霍鹏伟闫永胜
Owner JIANGSU UNIV
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