Magnetic nano microcapsule adsorbent and preparation method and application thereof

A magnetic nanometer and microcapsule technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of difficult separation, complicated operation, high cost, and achieve the optimization of adsorption performance and dispersion performance. Effect

Inactive Publication Date: 2017-01-04
SHENYANG AEROSPACE UNIVERSITY
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Problems solved by technology

[0005] Studies have found that humic acid can adsorb organic pollutants, inorganic pollutants and heavy metal ions. However, after adsorption, it is difficult to separate by conventional methods (centrifugation or precipitation), which has the disadvantages of cumbersome operation, high cost and long time consumption.

Method used

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  • Magnetic nano microcapsule adsorbent and preparation method and application thereof
  • Magnetic nano microcapsule adsorbent and preparation method and application thereof
  • Magnetic nano microcapsule adsorbent and preparation method and application thereof

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 1-3 Shown is a magnetic nano-microcapsule adsorbent and its preparation method and application, including nano ferric oxide, humic acid and chitosan, the ferric ferric oxide is a nano structure with a particle size of 5-20nm.

[0026] Preparation of adsorbent based on magnetic nanocapsules: 1. Use a measuring cylinder to measure 100mL deionized water into a three-necked flask, and pass nitrogen to remove oxygen, and take 6.1g FeCl 3 ·6H 2 O and 4.2 g FeSO 4 ·7H 2 O was dissolved in a three-necked flask, heated to 90°C in a water bath, and then two solutions were quickly added to the three-necked flask: 10mL of 25% ammonia solution and 50mL of 0.5g humic acid solution, and the mixed solution was placed at 90 Continue to stir at ℃ for 30 minutes, then cool to room temperature, then put it into a centrifuge tube, wash it twice with a large amo...

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Abstract

The invention discloses a magnetic nano microcapsule adsorbent, and belongs to the field of nano microcapsule adsorbents. The magnetic nano microcapsule adsorbent is prepared from 4-8 parts of ferroferric oxide, 1 part of humic acid and 4-10 parts of chitosan, ferroferric oxide is prepared from FeCl3.6H2O and FeSO4.7H2O, and the grain size of a ferroferric oxide-humic acid compound ranges from 10 nm to 25 nm. According to a preparation method, on the basis of the existing technology, the dispersing performance and adsorbing performance of the adsorbent are further optimized, the microcapsule adsorbent based on ferroferric oxide-humic acid can be synthesized in situ through one step, and the capsule wall material is environment-friendly natural organic matter chitosan.

Description

technical field [0001] The invention relates to a nanocapsule adsorbent, in particular to a magnetic nanocapsule adsorbent, a preparation method and application thereof. Background technique [0002] With the advancement of industrialization, the pollution of heavy metals to water bodies is becoming more and more serious, such as leather manufacturing, metallurgy, battery production, electroplating and other industries discharge a large amount of heavy metal-containing wastewater. Because of their high toxicity and easy diffusion, they pose a great threat to biological health. Among the methods for removing heavy metal pollution from water, the adsorption method is widely used due to its advantages of low cost, wide pH range, and easy operation. However, traditional adsorbents are not ideal for the adsorption of heavy metal ions, and the separation process is complicated, which easily causes secondary pollution and low recycling efficiency. [0003] The outstanding feature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F1/62
CPCB01J20/24B01J20/06B01J20/28009B01J20/28014C02F1/28C02F1/281C02F1/286
Inventor 可欣桂少峰孙伟
Owner SHENYANG AEROSPACE UNIVERSITY
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