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Magnetic fluorescent nano composite material as well as preparation method and application thereof

A technology of fluorescent nanometer and composite material, applied in the field of magnetic fluorescent nanocomposite material and its preparation, can solve the problems of difficulty in ensuring timely detection of power grid accidents, high labor intensity of basic distribution network personnel, and insufficient number of distribution network operation and maintenance personnel, etc. Achieve the effect of improving the efficiency of fault detection, less types, and less toxicity

Pending Publication Date: 2021-08-13
XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of these devices need active power to drive, the device is more complicated, and there are many limitations. The monitoring contents of the operation, equipment, security and environmental monitoring systems are not the same; and because there are many fault detectors and a wide range, and the number of distribution network operation and maintenance personnel of power supply enterprises is seriously insufficient, the distribution network personnel at the grassroots level The labor intensity is extremely high and it is difficult to ensure timely detection of power grid accidents and safe maintenance of the power grid; in order to solve the above problems, it is necessary to develop a magnetic fluorescent nanocomposite material and its preparation method and use

Method used

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  • Magnetic fluorescent nano composite material as well as preparation method and application thereof
  • Magnetic fluorescent nano composite material as well as preparation method and application thereof
  • Magnetic fluorescent nano composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Magnetic Fe 3 o 4 Preparation of nanoparticles: Measure 30ml of deionized water and add it to a 100ml beaker, weigh 0.6g of ferric chloride and 0.3g of ferrous chloride and add them to the beaker, heat at 50°C, heat and stir for 40 minutes to make ferric chloride and Completely dissolve ferrous chloride to obtain a uniform orange solution; add sodium hydroxide solution to the solution to adjust PH=9; add 0.2 g trisodium citrate to the solution, heat up to 70°C, heat and stir for 70 minutes, stop Heating, the reaction solution is filtered to obtain Fe(OH) 2 and Fe(OH) 3 Filtrate: After the filtrate was centrifuged and washed three times with ultrapure water, it was dried at high temperature at a drying temperature of 110°C and for a drying time of 3 hours to obtain magnetic Fe 3 o 4 nanoparticles.

[0048] La 2 (MoO 4 ) 3 :Eu 3+ Preparation of fluorescent nanoparticles: Measure an appropriate amount of concentrated nitric acid (concentration 68%) into a 100ml be...

Embodiment 2

[0051] Magnetic Fe 3 o 4 Preparation of nanoparticles: Measure 30ml of deionized water and add it to a 100ml beaker, weigh 1.14g of ferric chloride and 0.58g of ferrous chloride and add them to the beaker, heat at 60°C, heat and stir for 30 minutes to make the ferric chloride and Completely dissolve ferrous chloride to obtain a uniform orange solution; add sodium hydroxide solution to the solution to adjust the pH=9.5; add 0.23g trisodium citrate to the solution, heat up to 80°C, heat and stir for 60 minutes, stop Heating, the reaction solution is filtered to obtain Fe(OH) 2 and Fe(OH) 3 Filtrate; after centrifuging and washing the filtrate three times with ultrapure water, carry out high-temperature drying at a drying temperature of 120°C and a drying time of 2.5 hours to obtain magnetic Fe 3 o 4 nanoparticles.

[0052] La 2 (MoO 4 ) 3 :Eu 3+ Preparation of fluorescent nanoparticles: Measure an appropriate amount of concentrated nitric acid (concentration 68%) into a...

Embodiment 3

[0055] Magnetic Fe 3 o 4 Preparation of nanoparticles: Measure 30ml of deionized water and add it to a 100ml beaker, weigh 1.68g of ferric chloride and 0.86g of ferrous chloride and add them to the beaker, heat at 60°C, and heat and stir for 30 minutes to make ferric chloride and Completely dissolve ferrous chloride to obtain a uniform orange solution; add sodium hydroxide solution to the solution to adjust the pH=10.5; add 0.26g trisodium citrate to the solution, heat up to 80°C, heat and stir for 60 minutes, stop Heating, the reaction solution is filtered to obtain Fe(OH) 2 and Fe(OH) 3 Filtrate; after centrifuging and washing the filtrate three times with ultrapure water, carry out high-temperature drying at a drying temperature of 120°C and a drying time of 2.5 hours to obtain magnetic Fe 3 o 4 nanoparticles.

[0056] La 2 (MoO 4 ) 3 :Eu 3+ Preparation of fluorescent nanoparticles: Measure an appropriate amount of concentrated nitric acid (concentration 68%) into ...

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Abstract

The invention discloses a magnetic fluorescent nano composite material and a preparation method and application thereof, and the preparation method comprises the following steps: 1, preparing magnetic Fe3O4 nano particles from ferric chloride and ferrous chloride through a coprecipitation method; 2, preparing La2 (MoO4) 3: Eu < 3 + > fluorescent nano particles from three rare earth ions including lanthanum ions, europium ions and molybdenum ions through a hydrothermal method; and 3, adding the La2 (MoO4) 3: Eu < 3 + > fluorescent nano-particles and the magnetic Fe3O4 nano-particles into ultrapure water or absolute ethyl alcohol according to a proportion by using a blending method, and blending to obtain a magnetic fluorescent nano-composite material. The magnetic fluorescent nano composite material can instantly generate an electric field after a circuit is short-circuited, so that the detection sensitivity is effectively enhanced, the indication time of a display is prolonged, and the fault detection efficiency is improved; the synthesis method is simple and environment-friendly, few in raw material variety, low in toxicity, less in wastewater and suitable for industrial production; and after the material is applied to the fault indicator, the working intensity of personnel can be reduced, the working efficiency is improved, and personnel are assisted in timely probing power grid accidents and maintaining power grid safety.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and in particular relates to a magnetic fluorescent nanocomposite material and its preparation method and application. Background technique [0002] The fault indicator is a key component of power distribution facilities in the power system. Its main function is to detect the location of power faults in time and reduce the scope and time of power outages. With the rapid development of social economy, people have higher and higher requirements for the reliability of power supply. At present, the daily inspection methods of distribution network fault detectors are still relatively backward, and the method of combining device-type instruments, active on-line fault location systems and manual line inspections is mainly used. [0003] However, most of these devices need active power to drive, the device is more complicated, and there are many limitations. The monitoring contents of the operati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/08C01G39/00B82Y40/00B82Y30/00C09K11/02C09K11/78G01R31/52
CPCC01G49/08C01G39/006B82Y40/00B82Y30/00C09K11/7794C09K11/025G01R31/52C01P2004/80C01P2006/60C01P2006/42
Inventor 秦九渠叶东印贾占岭
Owner XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER