Adsorbent, preparation method and application thereof

A technology of adsorbent and microspheres, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the problems of small capacity, cumbersome pretreatment process, low reuse rate, etc. Achieve the effect of high industrial use value, good reusability and large specific surface area

Active Publication Date: 2013-06-12
NANTONG ZHONGXING MAGNETIC IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN 1544347 discloses a method for treating copper in phthalocyanine green wastewater with 335-type weakly basic anion exchange resin. The process is simple, the investment is small, and the effect is quick, but the pretreatment process is cumbersome and the reuse rate is not high.
Chinese patent CN 101890337A discloses a metal ion nano-adsorbent, which has an adsorption efficiency of 99% for cadmium ions, and the adsorption time is 30 minutes, but the adsorption capacity is not large, so it is difficult to realize large-scale use
The adsorbents reported in the above documents and patents can only adsorb dyes or heavy metal ions singly

Method used

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  • Adsorbent, preparation method and application thereof
  • Adsorbent, preparation method and application thereof
  • Adsorbent, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] 0.1 g of urea CO(NH 2 ) 2 , 1mmol of ferric chloride and 4mmol of sodium hydrogen phosphate, dissolved in 20 milliliters of water, vigorously stirred, after mixing evenly, poured the resulting mixed solution into 25 milliliters of polytetrafluoroethylene as a lining stainless steel autoclave, heated to 160 °C for 12 hours. After the reaction, the autoclave was cooled to room temperature, and the light yellow product was washed alternately with absolute ethanol and deionized water several times, and dried at 60°C in a vacuum oven, as image 3 As shown, the obtained product has porous iron oxyphosphate microspheres adsorbing dyes and heavy metal ions, and its appearance is honeycomb porous microspheres, and its particle size is 18-25 microns.

[0030] The product (Cu Kα ray, λ=0.154060 nm, scan speed 0.02 o / s) for phase identification, such as figure 1 shown in . Compared with the JCPDS standard card (74-1443), all diffraction peaks are related to Fe 4 (PO 4 ) 2 ...

Embodiment 2

[0032] 0.1 g of urea CO(NH 2 ) 2 , 1mmol of ferric sulfate and 4mmol of sodium hydrogen phosphate, dissolved in 20ml of water, vigorously stirred, after mixing evenly, pour the resulting mixed solution into 25ml of polytetrafluoroethylene as a stainless steel autoclave lined, heated to 160 ℃ for reaction 12 hours. After the reaction, the autoclave was cooled to room temperature, and the light yellow product was washed alternately with absolute ethanol and deionized water several times, and dried at 60°C in a vacuum oven, as Figure 4 As shown, the obtained product also has porous iron oxyphosphate microspheres adsorbing dyes and heavy metal ions, and its appearance is honeycomb porous microspheres composed of flakes.

Embodiment 3

[0034] 0.1 g of urea CO(NH 2 ) 2 , 1mmol of ferric nitrate and 4mmol of sodium hydrogen phosphate, dissolved in 20ml of water, vigorously stirred, after mixing evenly, pour the resulting mixed solution into 25ml of Teflon-lined stainless steel autoclave, heated to 160°C for reaction 12 hours. After the reaction, the autoclave was cooled to room temperature, and the light yellow product was washed alternately with absolute ethanol and deionized water several times, and dried at 60°C in a vacuum oven, as Figure 5 As shown, the obtained product also has porous iron oxyphosphate microspheres adsorbing dyes and heavy metal ions, and its appearance is honeycomb porous microspheres composed of flakes.

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Abstract

The invention discloses an adsorbent, a preparation method and an application thereof. The adsorbent is a porous iron oxide phosphate micron ball, has a shape of a honeycomb porous micron ball and has a grain size of 18-25 microns. Compared with the prior art, the adsorbent has the advantages that a simple water heating method is adopted, monomer ferric trichloride is taken as an iron source, a reaction temperature is low and a reaction time is short, thereby being beneficial to industrial production in large scope. When the iron oxide phosphate micron ball prepared by using the preparation method provided by the invention is applied to the production of dye absorption and heavy metal ion absorption, compared with the prior art, the iron oxide phosphate micron ball can effectively absorb various dyes and heavy metal ions under a condition of normal temperature and normal pressure, due to a surface porous structure, a large specific surface area and a large aperture of the iron oxide phosphate micron ball. Besides, the iron oxide phosphate micron ball is excellent in reusability and high in industrial use value.

Description

technical field [0001] The invention relates to a micro-nano material, a preparation method and an application thereof, in particular to a ternary compound iron oxyphosphate porous microsphere, a preparation method and an application thereof. Background technique [0002] Due to the rapid development of industry in recent years, water pollution caused by heavy metal ions and organic pollutants has posed a serious threat to human health and biological survival. In water treatment, adsorption is often used to purify water in depth. Traditional adsorbents include activated carbon, activated coal, coke, cinder, adsorption resin, etc., but these adsorbents have problems such as high price, low adsorption capacity, narrow applicable pH range, and low mechanical strength, which make their application range restricted. How to find a new type of adsorbent with excellent performance is a major issue to be solved in the field of water treatment. In modern industry, organic dyes are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/06C02F101/20C02F101/30
CPCY02W10/37
Inventor 倪永红周晓丽王星星
Owner NANTONG ZHONGXING MAGNETIC IND
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