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Preparation method of magnetic fluorescent material

A fluorescent material and magnetic technology, which is applied in the field of composite material preparation, can solve the problems of disappearance of magnetism and lack of fluorescent properties, and achieves the effect of being easy to use and simple in method.

Active Publication Date: 2019-05-24
杭州博创生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also SiO 2 Obtaining magnetic materials with fluorescent properties by encapsulation In practice, if the preparation method of mixing magnetic materials and fluorescent materials is used, it is usually encountered that the product is magnetic but does not have fluorescent properties, or has fluorescent properties but the magnetism disappears

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Ethylene glycol 30ml, 1.08g FeCl 3 ·6H 2 O, 5ml of 0.1mol / L europium ion, mix well, add 0.5g NaOH, and 5ml of paraffin, stir, put in a reactor at 250°C for 10 hours, and then wash three times to get the product.

[0022] After testing, the magnetic saturation intensity of the magnetic fluorescent material is 76A / m, the emission spectrum is 680nm-720nm, and the excitation spectrum is 380nm-410nm.

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PUM

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Abstract

The invention provides a preparation method of a magnetic fluorescent material. Ethylene glycol, Fe<3+> and europium ions are uniformly mixed, NaOH is added, then paraffin is added, the mixture is sufficiently stirred and left to stand in a reactor at 250 DEG C for 10 h or longer, and the magnetic fluorescent material is obtained. The magnetic fluorescent material prepared with the method is a nanoscale material and is synthesized with a hydrothermal method by one step, and the method is simple and easy to use. The prepared material has both a fluorescent characteristic and a superparamagnetic characteristic.

Description

technical field [0001] The invention relates to a preparation method of a composite material, in particular to a material with magnetic and fluorescent properties, and a preparation method thereof. Background technique [0002] Fluorescent material is a type of material that emits light after being irradiated by ultraviolet rays, lasers, etc. After absorbing external radiation, the material can absorb light that is consistent with its characteristic frequency, and jump from the original energy level to the first electronic excited state or the second electronic state. Various vibrational and rotational energy levels in the excited state. Molecules in the excited state transition to the lowest vibrational energy level of the first excited state of the molecule through vibrational relaxation, internal conversion, etc. During this process, they collide with similar molecules or other molecules to consume energy and no longer emit light . [0003] Chinese invention patent 2012...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/78B82Y20/00B82Y40/00H01F1/01
CPCB82Y20/00B82Y40/00C09K11/7729H01F1/0018H01F1/01
Inventor 李敏申志发王丽莎
Owner 杭州博创生物科技有限公司