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Modified sodium alginate adsorbing material for tetracycline antibiotics adsorption and preparation method of material

A technology of sodium alginate and tetracycline is applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., to achieve the effects of fast adsorption speed, strong practicability, and simple preparation method and process

Active Publication Date: 2018-07-31
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For polymer adsorbents, the current research mainly focuses on the influence of the structure and surface properties of the adsorbent itself on the adsorption and removal performance of antibiotics, and there are relatively few studies on the combination of metal ions and polymer adsorbents for the adsorption and removal of antibiotics.

Method used

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  • Modified sodium alginate adsorbing material for tetracycline antibiotics adsorption and preparation method of material
  • Modified sodium alginate adsorbing material for tetracycline antibiotics adsorption and preparation method of material
  • Modified sodium alginate adsorbing material for tetracycline antibiotics adsorption and preparation method of material

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A preparation method for a modified sodium alginate adsorption material used for adsorption of tetracycline antibiotics, comprising the following steps:

[0041] Step 1. Mix and stir sodium alginate and ultrapure water according to the ratio of mass volume ratio of 1:99 to make the sodium alginate fully swell, and perform ultrasonic degassing and degassing to obtain a 1wt% transparent and uniform sol; the ultrasonic degassing The degassing method is: use an ultrasonic degasser to control the flow rate of the liquid to 0.2m 3 / h, ultrasonic power is 300W, ultrasonic frequency is 30KHz, degassing;

[0042] Step 2: Spray the sodium alginate sol into the copper chloride solution with a mass concentration of 1wt% at a uniform speed, stir, cross-link for 24 hours, filter, and dry to obtain the modified sodium alginate adsorption for tetracycline antibiotics adsorption Material;

[0043] The drying in the step 2 adopts supercritical carbon dioxide drying, and the process is ...

Embodiment 2

[0045] A preparation method for a modified sodium alginate adsorption material used for adsorption of tetracycline antibiotics, comprising the following steps:

[0046] Step 1. Mix and stir sodium alginate and ultrapure water according to the ratio of mass volume ratio of 1:99 to make the sodium alginate fully swell, and perform ultrasonic degassing and degassing to obtain a 1wt% transparent and uniform sol; the ultrasonic degassing The degassing method is: use an ultrasonic degasser to control the flow rate of the liquid to 0.2m 3 / h, ultrasonic power is 300W, ultrasonic frequency is 30KHz, degassing;

[0047] Step 2: Spray the sodium alginate sol into the copper chloride solution with a mass concentration of 2wt% at a uniform speed, stir, cross-link for 24 hours, filter, and dry to obtain the modified sodium alginate adsorption for the adsorption of tetracycline antibiotics Material;

[0048] The drying in the step 2 adopts supercritical carbon dioxide drying, and the proc...

Embodiment 3

[0050] A preparation method for a modified sodium alginate adsorption material used for adsorption of tetracycline antibiotics, comprising the following steps:

[0051] Step 1, mix and stir sodium alginate and ultrapure water according to the ratio of mass volume ratio of 2:98, so that sodium alginate is fully swollen, ultrasonic defoaming and degassing, to obtain 2wt% transparent uniform sol; the ultrasonic defoaming The degassing method is: use an ultrasonic degasser to control the flow rate of the liquid to 0.2m 3 / h, ultrasonic power is 300W, ultrasonic frequency is 30KHz, degassing;

[0052] Step 2: Spray the sodium alginate sol into the copper chloride solution with a mass concentration of 2wt% at a uniform speed, stir, cross-link for 24 hours, filter, and dry to obtain the modified sodium alginate adsorption for the adsorption of tetracycline antibiotics Material; Figure 7 It is the EDX energy spectrum test figure of the adsorbent material prepared in this embodiment...

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Abstract

The invention discloses a modified sodium alginate adsorbing material for tetracycline antibiotics adsorption and a preparation method of the material. The method comprises the following steps that 1,sodium alginate and a solvent are mixed and stirred to be uniform according to the mass volume ratio being (1-3):(97-99), the sodium alginate is fully swelled, ultrasonic defoaming and degassing areconducted, and sodium alginate sol is obtained; 2, the sodium alginate sol is dripped into a metal salt solution with the mass concentration being 1-10 wt% at a constant speed, stirring is conducted,a cross-linking reaction is conducted for 2-24 h, filtering is conducted, drying is conducted, and the modified sodium alginate adsorbing material for tetracycline antibiotics adsorption is obtained.According to the obtained adsorbent, the raw materials are cheap and easy to obtain, the absorbent preparation process is simple, the tetracycline antibiotics removing efficiency is high, after the absorbent is used, the absorbent can be subjected to biodegradation and can be regenerated, secondary pollution cannot occur, and the modified sodium alginate adsorbing material has the good applicationprospect.

Description

technical field [0001] The invention relates to a preparation method of a modified collagen fiber material used for the adsorption of tetracycline antibiotics, and belongs to the technical fields of comprehensive utilization of biomass resources, preparation of biomass adsorption materials and environmental protection applications. Background technique [0002] Antibiotics are produced by microorganisms such as bacteria, fungi, actinomycetes, or higher animals and plants in physiological activities, and can selectively inhibit a class of secondary metabolites of certain biological life activities at low concentrations, and their chemical half Synthetic or fully synthetic derivatives. Antibiotics can inhibit or kill pathogenic microorganisms and are important drugs for the prevention and treatment of infectious diseases. [0003] Antibiotics are currently widely used in the prevention and treatment of human and animal diseases, and their content in veterinary medicines reach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/30
CPCB01J20/24C02F1/286C02F2101/305
Inventor 林晓艳张小娜陈晓艳黄英泽罗学刚
Owner SOUTHWEAT UNIV OF SCI & TECH
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