Oxidized plumbago of loading Cu*O corpuscule and its preparing method

A technology of microparticles and graphite, which is applied in the field of composite preparation, can solve the problems of not fully utilizing the surface area of ​​exfoliated graphite oxide sheets and limiting the industrial application of graphite oxide composites, and achieve the effects of increasing surface area, good application prospects and economic benefits

Inactive Publication Date: 2008-04-16
TECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these coatings and packages also make the coated particles unable to effectively exert their unique properties, such as catalytic performance, and do

Method used

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  • Oxidized plumbago of loading Cu*O corpuscule and its preparing method

Examples

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Example Embodiment

[0029] Example 1: The invention supports Cu 2 The preparation method of O microparticle graphite oxide includes the following steps:

[0030] The first step is the preparation of graphite oxide. Cool 460mL concentrated sulfuric acid containing 10g sodium nitrate to 0~5℃, then add 20g graphite to it, then slowly add potassium permanganate so that the temperature of the system does not exceed 20℃, stir well and put it in 30~35 In a water bath at ℃, stir for a certain period of time and then slowly add 4.6L of deionized water so that the temperature of the system does not exceed 98℃, and then stir for another 10 minutes. Add 2.8L of deionized water, and then add 50mL of hydrogen peroxide. The resulting yellow suspension was centrifuged and filtered until there were no sulfate ions in the filtrate. The product was dried in vacuum at 60°C.

[0031] The second step is to disperse 50 mg of graphite oxide into 50 mL of ethanol solution containing 0.05 g of copper acetate, sonicate for 1 t...

Example Embodiment

[0036] Example 2: The invention supports Cu 2 The preparation method of O microparticle graphite oxide includes the following steps:

[0037] The first step is the same as step one in Example 1;

[0038] In the second step, disperse 50 mg of graphite oxide into 50 mL of ethanol solution containing 0.1 g of copper acetate, sonicate for 1 to 2 hours, and centrifuge to dry;

[0039] In the third step, ultrasonically disperse 50 mg of the product obtained in the second step into 50 mL of ethylene glycol for 0.5 to 1 hour;

[0040] In the fourth step, the mixture obtained in the third step is heated to 140°C and then 2.5 mL of deionized water is added and stirred for 20 minutes;

[0041] In the fifth step, the mixed solution of the fourth step was stirred at 180°C for 2 hours;

[0042] The sixth step is the same as the step six in Example 1.

Example Embodiment

[0043] Example 3: The invention supports Cu 2 The preparation method of O microparticle graphite oxide includes the following steps:

[0044] The first step is the same as step one in Example 1;

[0045] In the second step, disperse 50 mg of graphite oxide into 50 mL of ethanol solution containing 0.5 g of copper nitrate, sonicate for 1 to 2 hours, and centrifuge to dry;

[0046] In the third step, ultrasonically disperse 50 mg of the product obtained in the second step into 50 mL of glycerol for 0.5 to 1 hour;

[0047] In the fourth step, the mixture obtained in the third step is heated to 145°C and then 0.5 mL of deionized water is added and stirred for 10 minutes;

[0048] In the fifth step, the mixed solution of the fourth step was stirred at 200°C for 1 hour;

[0049] The sixth step is the same as the step six in Example 1.

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Abstract

The present invention discloses a graphite oxide carrying the Cu2O microparticles and the preparing method thereof. The graphite oxide is prepared by the following steps: dispersing the graphite oxide to the ethyl alcohol containing the nantokite, centrifugal drying when the mixed liquid has formed; dispersing the product obtained in the last step to the reducing dissolvent; heating the mixed liquid of last step and adding deionized water and stirring; heating and stirring the mixed liquid obtained in the last step; centrifuging, washing and drying the mixed liquid of the last step, and the graphite oxide carrying the Cu2O microparticles is obtained. The present invention fully uses the oxygen group on the surface of the graphite oxide to form the nucleation center, and the more surface area of the graphite oxide piece is used to facilitate that the nano metallic particles subsides on the graphite oxide piece by the in-site reducing function, the formed composition reduces the agglomeration property of the Cu2O microparticle thereby increasing the surface area of the particle; the composition prepared by the invention can be used in the respects of catalytic reaction, solar battery and wastewater treatment, has a better application prospect and economic benefit.

Description

technical field [0001] The invention belongs to depositing cuprous oxide (Cu) on the surface of graphite oxide 2 O) Composite preparation technology of microparticles, especially a kind of loaded Cu 2 Graphite oxide of O microparticles and its preparation method. Background technique [0002] After Brodie prepared graphite oxide in 1859, graphite oxide has been widely studied. [0003] At present, there are few reports on the articles on the supported particles of graphite oxide. And materials similar to graphite oxide: acid-treated carbon nanotubes (with active oxygen groups on the surface) have been researched on composites with nanoparticles, and have been combined with many metals, metal oxides and Semiconductor particles have been compounded, and these composites have high catalytic performance, giving full play to the performance of carbon nanotubes and supported particles, such as Yu Y, Ma LL, Huang WY et al prepared cuprous oxide carbon nanotube composites (Sonica...

Claims

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Application Information

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IPC IPC(8): B01J23/72B01J21/18B01J37/02
Inventor 汪信徐超朱俊武杨绪杰刘孝恒陆路德武晓东郝青丽韩巧凤江晓红
Owner TECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH
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