Antibiotic and heavy metal removed meso-porous silicon based bifunctional adsorbing material as well as preparation method and application thereof

An adsorption material and a bifunctional technology, which is applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., to achieve the effect of simple preparation method and easy control of conditions

Inactive Publication Date: 2015-03-25
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned domestically prepared adsorbents mostly focusing on a single type of pollutants, and less consideration for the simultaneous removal of the two, the present invention provides a dual-functional group that can simultaneously adsorb antibiotics in water. Mesoporous silica-based adsorbent materials for heavy metals

Method used

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  • Antibiotic and heavy metal removed meso-porous silicon based bifunctional adsorbing material as well as preparation method and application thereof
  • Antibiotic and heavy metal removed meso-porous silicon based bifunctional adsorbing material as well as preparation method and application thereof
  • Antibiotic and heavy metal removed meso-porous silicon based bifunctional adsorbing material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Dry 3g of mesoporous molecular sieve SBA15 at 120°C, add it into the toluene solution according to the mass ratio of 1:80 and stir vigorously until the mixture is uniform, then add γ-aminopropyltrimethoxy dropwise according to the mass ratio of 1:10 Silane, under the protection of nitrogen, react at a constant temperature of 100°C for 24h, filter and wash repeatedly with toluene and isopropanol, add it to ferric chloride isopropanol solvent containing Fe(III) 0.1mol / L and react for 24h, filter with isopropanol Propanol and ultrapure water were washed repeatedly, and the amino-Fe-SBA15 adsorbent was obtained after drying.

Embodiment 2

[0049] Dry 3g of mesoporous molecular sieve SBA15 at 110°C, add it into the toluene solution according to the mass ratio of 1:50 and stir vigorously until the mixture is uniform, then add γ-aminopropyltrimethoxy dropwise according to the mass ratio of 1:5 Silane, stirred and reacted at a constant temperature of 105°C for 24 hours under the protection of helium, filtered and washed repeatedly with toluene and ethanol, added to iron nitrate ethanol solvent containing Fe(III) 0.2mol / L to react for 24 hours, filtered and used ethanol and ultrapure Water was washed repeatedly, and the amino-Fe-SBA15 adsorbent was obtained after drying.

Embodiment 3

[0051] Dry 3g of mesoporous molecular sieve SBA15 at 130°C, add it into the toluene solution according to the mass ratio of 1:100 and stir vigorously until the mixture is uniform, then add γ-aminopropyltrimethoxy dropwise according to the mass ratio of 1:15 Silane, stirred and reacted at a constant temperature of 90°C for 48 hours under the protection of argon, filtered and washed repeatedly with toluene and methanol, added to iron nitrate methanol solvent containing Fe(III) 0.05mol / L to react for 48 hours, filtered and used methanol and ultrapure Water was washed repeatedly, and the amino-Fe-SBA15 adsorbent was obtained after drying.

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Abstract

The invention provides an antibiotic and heavy metal removed meso-porous silicon based bifunctional adsorbing material and a preparation method thereof. The adsorbing material contains a functional group-amino and Fe (III). The method comprises the following steps: uniformly mixing a mesoporous molecular sieve with a methylbenzene solution in protective atmosphere after drying the mesoporous molecular sieve, adding a silane coupling agent into the mixed solution, mixing and stirring in the protective atmosphere, filtering, cleaning, drying, adding into an Fe (III)-containing alcoholic solution, stirring, filtering, cleaning and drying to obtain the meso-porous silicon based bifunctional adsorbing material. The prepared adsorbing material contains different functional groups, can specifically adsorb specific pollutants, can remove the antibiotics and heavy metals in a water body under the complexing action of the amino and the heavy metal and the complexing action of the Fe (III) and the antibiotics, and the removal cost can be reduced; and besides, the preparation method is simple and the conditions can be controlled easily.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to a mesoporous silicon-based bifunctional adsorption material for removing antibiotics and heavy metals and a preparation method thereof. Background technique [0002] The adsorption method is easy to popularize and apply due to its own advantages such as low energy consumption, simple operation, no need to add complicated dosing process, etc., and it is especially suitable for advanced treatment process to remove pollutants in water that are difficult to remove by conventional treatment process. It has received more and more attention, and the adsorption material is the core of the adsorption method. [0003] Since Mobil Corporation of the United States first reported the successful synthesis of mesoporous materials in 1992, mesoporous materials have been widely used in catalysis, adsorption, sensing and separation and purification due to their large specific surface area, adjustabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F1/62C02F1/58
CPCB01J20/223B01J20/3085B01J2220/46C02F1/288C02F1/58C02F1/62C02F2101/20
Inventor 刘会娟张紫阳兰华春武利园曲久辉
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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