Crotonic acid and acrylic acid copolymer modified ferroferric oxide nano granules with silicon structure as well as preparation and application thereof

A technology of ferroferric oxide and nanoparticles, applied in other chemical processes, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve problems such as heavy metal hazards, achieve simple equipment, reduce costs, and have large adsorption capacity Effect

Inactive Publication Date: 2013-07-24
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, heavy metals are easily enriched through the food chain and cause great harm to the human body.

Method used

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  • Crotonic acid and acrylic acid copolymer modified ferroferric oxide nano granules with silicon structure as well as preparation and application thereof
  • Crotonic acid and acrylic acid copolymer modified ferroferric oxide nano granules with silicon structure as well as preparation and application thereof
  • Crotonic acid and acrylic acid copolymer modified ferroferric oxide nano granules with silicon structure as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Fe 3 o 4 Preparation of @APS@AA-co-CA nanomaterial adsorbent.

[0033] First, Fe 3 o 4 Preparation of magnetic nanoparticles: 5.2g FeCl 3 .6H 2 O, 2.0g FeCl 2 .4H 2 O and 0.85ml of concentrated hydrochloric acid were dissolved in 25ml of deionized water. The solution was added dropwise to 250 ml of deionized water containing 60 g of NaOH, and mechanically stirred at 80° C. for 30 min. Separation of Fe with a strong magnet 3 o 4 The magnetic nanoparticles were washed three times with 300ml deionized water and absolute ethanol respectively, and dried under vacuum at room temperature.

[0034] Next, the preparation of crotonic acid and acrylic acid copolymer (AA-co-CA): 6.0g of crotonic acid and 4.0g of acrylic acid were dissolved in 50ml of toluene, nitrogen was blown and heated to 70°C, and 0.050g of azobisiso Butyronitrile was used as an initiator, stirred and reacted for 4.5 hours, and the solid washed out after cooling, which was a copolymer of c...

Embodiment 2

[0037] Embodiment 2: Fe of the present invention 3 o 4 Structural characterization of @APS@AA-co-CA nanomaterial adsorbent:

[0038] For the present invention Fe 3 o 4 The structural characterization of @APS@AA-co-CA nanomaterial adsorbent includes the following aspects:

[0039] 1 Morphological observation:

[0040] Fe 3 o 4 The morphology of @APS@AA-co-CA nanomaterial adsorbent is observed, and the results are as follows figure 1 As shown, the set voltage is 120kV and the current is 30mA.

[0041] 2 crystal forms

[0042] X-ray powder diffractometer (Bruker D8 Advance X-ray diffraction analyzer) is used to analyze the crystal form of ferric oxide nanoparticles modified by APS and AA-co-CA, wherein the radiation source is Cu Ka, current 30mA, voltage 40kv, The sample is scanned and analyzed from 10° to 80° at a speed of 0.4° / min, and the results are shown in figure 2 . It can be seen from the figure that after the two kinds of functional groups are modified by X-r...

Embodiment 3

[0047] Embodiment 3: Fe of the present invention 3 o 4 Adsorption capacity test of @APS@AA-co-CA nano-adsorption materials.

[0048] This embodiment is to use Fe of the present invention 3 o 4 @APS@AA-co-CA nanomaterial adsorbent on pollutant Cd 2+ , Zn 2+ , Pb 2+ 、Cu 2+ Adsorption experiments were carried out.

[0049] 1. Adsorption capacity test under different pH conditions

[0050] The experimental method is as follows: configure 100mg.L -1 Cd 2+ , Zn 2+ , Pb 2+ 、Cu 2+ Aqueous solution, adjust pH 1~12 with 0.1M NaOH and hydrochloric acid solution, take 50ml metal ion solution respectively, add 0.050g Fe 3 o 4 @APS@AA-co-CA nanomaterial adsorbent, after stirring for 2 hours, the adsorbent was separated by a magnet, and the solution was tested for the amount of metal ions by a Hewlett-Packard 3510 flame atomic absorption device. The results show that the adsorption effect of the adsorbent is very good under the condition of pH>4. However, if the alkalinity is...

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Abstract

The invention discloses a ferroferric oxide nanomaterial adsorbent, namely a ferroferric oxide nano granule adsorbent modified by 3-aminopropyl triethoxy silane connected with crotonic acid and acrylic acid copolymer. Experiment results prove that the adsorbent has good adsorption effect to heavy metal ions (Cd<2+>, Zn<2+>, Pb<2+> and Cu<2+>) in water under a certain condition, and can be recycled under certain conditions. The invention also relates to crotonic acid and acrylic acid copolymer modified ferroferric oxide nano granules with a silicon structure as well as preparation and application of the ferroferric oxide nano granules.

Description

field of invention [0001] The present invention relates to a ferric oxide nanometer material adsorbent, namely crotonic acid and acrylic acid copolymer modified iron ferric oxide nano particle adsorbent containing silicon structure and its preparation and its effect on heavy metal ions (Cd) in water 2+ , Zn 2+ , Pb 2+ 、Cu 2+ ) processing applications. Background technique [0002] Heavy metal pollution is very harmful to the environment and human health. Unlike general organic pollution, heavy metal pollution cannot be removed by biodegradation. Moreover, heavy metals are easily enriched through the food chain and cause great harm to the human body. [0003] People expend a lot of energy to deal with heavy metal pollutants. Traditional heavy metal pollutant treatment methods include: ion exchange, chemical precipitation, adsorption, etc. Among them, adsorption has attracted much attention because of its simplicity, convenience, and high efficiency. In recent years, s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/62
Inventor 赵宝祥葛飞叶慧
Owner SHANDONG UNIV
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