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Preparation method of sulfamethoxazole modified banana fiber adsorbent

A technology of sulfamethoxazole and banana fiber, applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal oxides/hydroxides, etc., can solve problems such as resource waste, reduce environmental pressure, and achieve adsorption Fast, cheap results

Inactive Publication Date: 2018-09-11
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In China alone, more than 2 million tons of banana stems are discarded every year, causing a great waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Banana fiber pretreatment: In the reactor, add 6mol / L HCl: 78mL, mass percent concentration of 30% hydrogen peroxide: 10mL, mix well, then add banana fiber: 12g, soak at room temperature for 6 hours, and then boil After cooling for 20min, wash with deionized water until neutral, separate solid and liquid, put the solid in 210mL isopropanol solution containing 10% concentration by mass volume, soak at room temperature for 4 hours, separate solid and liquid, wash with water until neutral , dry to obtain pretreated banana fiber;

[0022] (2) Preparation of epoxy banana fiber: add to the reactor separately, absolute ethanol: 84mL, epibromopropane: 14 mL, pretreated banana fiber: 14g, seal it well, and raise the temperature to 45±2℃ and keep the temperature constant After reacting for 8 hours, take it out and cool it to room temperature, separate the solid and liquid, wash with ethanol, and dry to obtain epoxy banana fiber;

[0023] (3) Preparation of sulfamethoxazole m...

Embodiment 2

[0025] (1) Banana fiber pretreatment: In the reactor, add 6mol / L HCl: 76mL, mass percent concentration of 30% hydrogen peroxide: 8mL, mix well, then add banana fiber: 16g, soak at room temperature for 6 hours, and then boil After cooling for 20min, wash with deionized water until neutral, separate solid and liquid, put the solid in 290mL isopropanol solution containing 10% concentration by mass volume, soak at room temperature for 4 hours, separate solid and liquid, wash with water until neutral , dry to obtain pretreated banana fiber;

[0026] (2) Preparation of epoxy banana fiber: add to the reactor separately, absolute ethanol: 81mL, epibromopropane: 15 mL, pretreated banana fiber: 15g, seal it well, and raise the temperature to 45±2℃ and keep the temperature constant After reacting for 8 hours, take it out and cool it to room temperature, separate the solid and liquid, wash with ethanol, and dry to obtain epoxy banana fiber;

[0027] (3) Preparation of sulfamethoxazole mo...

Embodiment 3

[0029] (1) Banana fiber pretreatment: In the reactor, add 6mol / L HCl: 80mL, mass percent concentration of 30% hydrogen peroxide: 6mL, mix well, then add banana fiber: 14g, soak at room temperature for 6 hours, and then boil After cooling for 20min, wash with deionized water until neutral, separate solid and liquid, put the solid in 280mL isopropanol solution containing 10% concentration by mass volume, soak at room temperature for 4 hours, separate solid and liquid, wash with water until neutral , dry to obtain pretreated banana fiber;

[0030] (2) Preparation of epoxy banana fiber: Add to the reactor separately, absolute ethanol: 86mL, epibromopropane: 13.5 mL, pretreated banana fiber: 13g, seal it well, and raise the temperature to 45±2℃ and keep the temperature constant After reacting for 8 hours, take it out and cool it to room temperature, separate the solid and liquid, wash with ethanol, and dry to obtain epoxy banana fiber;

[0031] (3) Preparation of sulfamethoxazole ...

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Abstract

The invention discloses a preparation method of a sulfamethoxazole modified banana fiber adsorbent. The method comprises the following steps: preprocessing banana fibers by hydrochloric acid and hydrogen peroxide to obtain preprocessed banana fibers; and performing epoxidation treatment on the preprocessed banana fibers by epibromohydrin, adding 80-84 mass% of a diluted alkali solution and 3-6 mass% of sulfamethoxazole into a reactor, stirring the diluted alkali solution and sulfamethoxazole to dissolve the sulfamethoxazole, adding 12-16 mass% of the obtained epoxy banana fibers, heating the reactor to 40 + / -2 DEG C, keeping the temperature constant, performing a stirring reaction for 3 h, performing solid-liquid separation after the reaction is completed, washing the obtained solid with deionized water, and drying the washed solid to obtain the sulfamethoxazole modified banana fiber adsorbent, wherein the sum of the mass percentages of the components added into the reactor is 100%. The adsorbent has the advantages of high adsorption capacity to arsenic, low cost, greenness, environmental protection, magnetic property, and high mechanical strength, can be repeatedly used for 10 times or more, and is easy to separate.

Description

technical field [0001] The invention relates to a preparation method of a biosorbent, in particular to a preparation method of a sulfamethoxazole-modified banana fiber adsorbent and an application technology for arsenic adsorption and separation, belonging to the field of adsorption materials. Background technique [0002] Banana fiber uses banana stems as raw materials, mainly composed of cellulose, hemicellulose and lignin, and the fiber after chemical degumming can be used for cotton spinning. The fiber made by drying, scouring and defibrating by combined biological enzyme and chemical oxidation treatment process has the functions of light weight, good luster, high water absorption, strong antibacterial property, easy degradation and environmental protection. With the impact of the concept of ecological organization on a global scale, green consumption has become the dominant mode of textile consumption. As a new type of natural fiber derived from green plants, banana ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F101/10
Inventor 李慧芝张卫民张瑾
Owner UNIV OF JINAN
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