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Preparation method of rare earth complexes containing mesoporous material SBA-15 Schiff base ligands and application thereof

A technology of S-SBA-15 and NH2-SBA-15, which is applied in the field of preparation of complexes formed by rare earth and SBA-15 Schiff base ligands, can solve the problems of poor heat resistance, short antibacterial life, and expensive antibacterial materials, etc. problems, to achieve the effect of strong antibacterial effect, enhanced antibacterial performance, good chemical stability and thermal stability

Inactive Publication Date: 2013-07-17
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a preparation method of complexes formed by a class of rare earths and SBA-15 Schiff base ligands and its application in the field of antibacterial, to overcome the relatively expensive price of existing antibacterial materials, poor heat resistance, Disadvantages of short antibacterial life

Method used

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  • Preparation method of rare earth complexes containing mesoporous material SBA-15 Schiff base ligands and application thereof
  • Preparation method of rare earth complexes containing mesoporous material SBA-15 Schiff base ligands and application thereof
  • Preparation method of rare earth complexes containing mesoporous material SBA-15 Schiff base ligands and application thereof

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Experimental program
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Effect test

Embodiment 1

[0036] Aminated SBA-15 (NH 2 -SBA-15) synthesis

[0037] Take 1.00g SBA-15 and disperse it in anhydrous toluene solution, add 1.00g (4.5mmol) APTES dropwise under stirring condition, after the dispersion is uniform, reflux reaction at 110°C under nitrogen protection for 24h, filter after the reaction is completed, filter The cake was washed three times with toluene and dichloromethane successively. After washing, the solid was dried in a vacuum oven at 60°C for 12 hours to obtain the target product, C-CP / MAS NMR (ppm): 9, 15, 21, 42.

Embodiment 2

[0039] Synthesis of SBA-15 Schiff Base (S-SBA-15)

[0040] In a 250mL three-necked flask, add 0.80g NH 2 -SBA-15, 0.60g (3.93mmol) 5-formyl-8-hydroxyquinoline and 100.0mL of absolute ethanol, heated to reflux under nitrogen protection for 12h, filtered to obtain a yellow solid after the reaction was completed, and heated (80 ~90°C) ethanol to wash until the filtrate is colorless, then place the product in a vacuum oven at 50°C to dry to obtain the target product, C-CP / MAS NMR (ppm): 9, 15, 21, 42, 58, 53, 110, 121, 128, 145, 161, 165, 190.

Embodiment 3

[0042] Synthesis of Lanthanum Complex (La-S-SBA-15)

[0043] In a 250mL three-necked flask, add 0.25g S-SBA-15, 0.60g (1.38mmol) rare earth lanthanum nitrate and 30.0mL absolute ethanol in sequence, heat and reflux for 12h under the protection of nitrogen, and filter the crude product with suction. The crude product was washed with ethanol until the filtrate was clear, and the target product was obtained after vacuum drying.

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Abstract

The present invention discloses a preparation method of rare earth complexes containing mesoporous material SBA-15 Schiff base ligands and an application thereof, belonging to the field of environmentally friendly purification; the rare earth complexes have a chemical composition of RE (S-SBA-15) 3, wherein RE represents one or more than one rare earth ion of La3 +, Ce3 +, Pr3 +, Nd3 +, Pm3 +, Sm3 +, Eu3 +, Gd3 +, Tb3 +, Dy3 +, Ho3 +, Y3 +, Er3 +, Tm3 + and Yb3 +; S-SBA-15 is Schiff base; and the structural formula is shown in the figure of the abstract. The preparation method of the rare earth complexes containing mesoporous material SBA-15 Schiff base ligands of the invention is simple, and low in cost; the rare earth complexes have strong bacteriostatic activity, have a minimum inhibitory concentration of less than 120 micrograms per milliliter for both escherichia coli and staphylococcus aureus, and have a broad-spectrum antibacterial property. The rare earth complexes have a large specific surface area and a highly ordered mesoporous structure, which can be used as an antibacterial agent in the field of environmental purification.

Description

technical field [0001] The present invention relates to a kind of rare earth complex containing mesoporous material SBA-15 Schiff base ligand and its preparation method and application, in particular, it relates to the preparation of a kind of complex formed by rare earth and SBA-15 Schiff base ligand Methods and applications in the field of antibacterial. Background technique [0002] With the advancement of science and technology and the development of society, people's living standards have gradually improved, and public health safety has received more and more attention. From the "SARS" in 2003, the "bird flu" in 2004 to the death of E. coli in Europe in 2011, they all remind people of the seriousness of health and safety issues. Therefore, the application of antibacterial materials to control and eliminate the growth and reproduction of harmful bacteria has become an important topic in the field of science and technology, and has received continuous attention. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/00A01P1/00
Inventor 许东芳陈小轲徐莹豪何其庄
Owner SHANGHAI NORMAL UNIVERSITY
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