Preparation method of Co3O4-Ti2 nanoparticles

A technology of nano-particles and nickel foam, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as incomplete decomposition

Inactive Publication Date: 2018-12-04
QIDONG CHUANGLU NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But as a typical p-type semiconductor, Co 3 o 4 Do

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of Co 3 o 4 -TiO 2 The preparation method of nanoparticles comprises the steps of: putting 6 parts of cobalt chloride hexahydrate, 15 parts of urea and 35 parts of ammonium fluoride into beaker A, adding 90 parts of deionized water, magnetic stirring to make it fully react until the No small particles suspended in beaker A can be observed; use scissors to cut out 3cm×2cm foam nickel, put it into beaker B, and add acetone to beaker B until the nickel foam is submerged, and ultrasonicate for 35 minutes; put the above beaker A Pour the medium solution into the lining of the hydrothermal reaction kettle, take out the nickel foam from the beaker B with tweezers, put the nickel foam into the lining of the reaction kettle obliquely, make it completely submerged by the solution, and put the reaction kettle into the oven Insulate at 110°C for 8 hours; after the above reaction is completed, take out the nickel foam and put it into a quartz petri dish, put the quartz petr...

Embodiment 2

[0016] A kind of Co 3 o 4 -TiO 2 The preparation method of nanoparticles comprises the steps of: putting 5 parts of cobalt chloride hexahydrate, 10 parts of urea and 30 parts of ammonium fluoride into beaker A, adding 85 parts of deionized water, and magnetic stirring to make it fully react until the No small particles suspended in beaker A can be observed; use scissors to cut out 3cm×2cm foam nickel, put it into beaker B, and add acetone to beaker B until the nickel foam is submerged, and ultrasonicate for 30 minutes; put the above beaker A Pour the medium solution into the lining of the hydrothermal reaction kettle, take out the nickel foam from the beaker B with tweezers, put the nickel foam into the lining of the reaction kettle obliquely, make it completely submerged by the solution, and put the reaction kettle into the oven Incubate at 105°C for 7 hours; after the above reaction is completed, take out the foamed nickel and put it into a quartz petri dish, put the quart...

Embodiment 3

[0018] A kind of Co 3 o 4 -TiO 2 The preparation method of nanoparticles comprises the following steps: put 7 parts of cobalt chloride hexahydrate, 20 parts of urea and 40 parts of ammonium fluoride into beaker A, add 95 parts of deionized water, and magnetically stir to make it fully react until the No suspended small particles were observed in beaker A; use scissors to cut out a 3cm×2cm nickel foam, put it into beaker B, and add acetone to beaker B until the nickel foam is submerged, and ultrasonicate for 40 minutes; put the above beaker A Pour the medium solution into the lining of the hydrothermal reaction kettle, take out the nickel foam from the beaker B with tweezers, put the nickel foam into the lining of the reaction kettle obliquely, make it completely submerged by the solution, and put the reaction kettle into the oven Insulate at 115°C for 9 hours; after the above reaction is completed, take out the nickel foam and put it into a quartz petri dish, put the quartz ...

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PUM

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Abstract

The invention discloses a preparation method of Co3O4-Ti2 nanoparticles. The method includes the steps of: adding cobalt chloride hexahydrate, urea and ammonium fluoride into deionized water; placingfoamed nickel into a beaker, and adding acetone till submerging the foamed nickel; pouring the above solution into the lining of a hydrothermal reaction kettle, and putting the foamed nickel slantly into the lining for heat preservation reaction; at the end of the reaction, taking out the foamed nickel, and conducting calcination and grinding to obtain Co3O4; adding concentrated nitric acid into anhydrous ethanol, adding n-butyl titanate, and carrying out reaction to obtain a solution C; adding the Co3O4 into deionized water, performing ultrasonic treatment, then pouring the product into the solution C, carrying out stirring reaction, then pouring the product into the lining of the hydrothermal reaction kettle, and submerging the lining with foamed nickel washed by acetone in advance, performing heat preservation for 7-9h, and at the end of the reaction, taking out the foamed nickel, performing calcination, conducting natural cooling and grinding, thus obtaining the Co3O4-Ti2 nanoparticles. The method is simple, and the prepared Co3O4-Ti2 semiconductor nanoparticles with P-N junction have good catalytic effect, and can be reused.

Description

technical field [0001] The present invention relates to a Co 3 o 4 -TiO 2 Preparation method of nanoparticles. Background technique [0002] Facing the ever-increasing energy demand, the development of green new energy has become a current research hotspot. Simulate natural photosynthesis, use semiconductor nanomaterials as photocatalysts to decompose water to prepare H under the irradiation of sunlight 2 Artificial photosynthesis has received more and more attention. Among many semiconductor materials, the n-type semiconductor TiO 2 There are many studies on nanomaterials as photocatalysts for water splitting, but because their band gap is 3.2eV, they can only be excited by ultraviolet light, and ultraviolet light in sunlight only accounts for 5%, so research on TiO 2 The hot spot of nano photocatalyst is to modify it by doping to make full use of sunlight. co 3 o 4 Since its band gap is close to the energy of visible light, it is increasingly used as a photocataly...

Claims

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Application Information

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IPC IPC(8): B01J35/02B01J23/75
CPCB01J35/023B01J23/75B01J35/026
Inventor 不公告发明人
Owner QIDONG CHUANGLU NEW MATERIAL CO LTD
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