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Preparation method of ZnO-CuO composite nano material

A composite nanomaterial, zno-cuo technology, applied in nanotechnology, analytical materials, nanotechnology and other directions, can solve problems such as poor selectivity

Active Publication Date: 2017-03-29
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, ZnO and CuO are favored by researchers and industries as excellent gas-sensing materials, but metal oxides respond to most gases. By constructing metal oxides with different structures and crystal forms, the sensitivity, response / Recovery time, etc., but the problem of poor selectivity is difficult to solve

Method used

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  • Preparation method of ZnO-CuO composite nano material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Prepare the aqueous solutions of zinc chloride and potassium ethyl xanthate with a concentration of 0.1 at a molar ratio of 1:1.1, drop the potassium ethyl xanthate solution into the zinc chloride solution while stirring, and continue stirring for half an hour; filter with suction , mix the obtained precipitate with deionized water, stir for a while, filter with suction, repeat 3-5 times, and obtain zinc ethyl xanthate powder after drying; prepare copper chloride and ethyl xanthate powder with a concentration of 0.1M respectively in a molar ratio of 1:1.1 Add the aqueous solution of potassium ethyl xanthate, drop the potassium ethyl xanthate solution into the copper salt solution while stirring, continue to stir for half an hour; filter with suction, mix the resulting precipitate with deionized water, filter with suction, repeat 3-5 times, after drying, copper ethyl xanthate powder is obtained;

[0017] Mix copper ethyl xanthate and zinc ethyl xanthate at a molar ratio ...

Embodiment 2

[0022] Mix the aqueous solutions of zinc chloride and potassium ethyl xanthate with a concentration of 0.3 at a molar ratio of 1:1.5, drop the potassium ethyl xanthate solution into the zinc chloride solution while stirring, and continue stirring for half an hour; filter with suction , mix the obtained precipitate with deionized water, stir for a while, filter with suction, repeat 3-5 times, and obtain zinc ethyl xanthate powder after drying; prepare copper chloride and ethyl xanthate powder with a concentration of 0.3M in a molar ratio of 1:1.5, respectively. Add the aqueous solution of potassium ethyl xanthate, drop the potassium ethyl xanthate solution into the copper salt solution while stirring, continue to stir for half an hour; filter with suction, mix the resulting precipitate with deionized water, filter with suction, repeat 3-5 times, after drying, copper ethyl xanthate powder is obtained;

[0023] Mix copper ethyl xanthate and zinc ethyl xanthate at a molar ratio of...

Embodiment 3

[0028] Prepare the aqueous solutions of zinc chloride and potassium ethyl xanthate with a concentration of 0.2 at a molar ratio of 1:1.3, drop the potassium ethyl xanthate solution into the zinc chloride solution while stirring, and continue stirring for half an hour; filter with suction , mix the resulting precipitate with deionized water, stir for a while, filter with suction, repeat 3-5 times, and obtain zinc ethyl xanthate powder after drying; prepare copper chloride and ethyl xanthate powder with a concentration of 0.2M respectively in a molar ratio of 1:1.3 Add the aqueous solution of potassium ethyl xanthate, drop the potassium ethyl xanthate solution into the copper salt solution while stirring, continue to stir for half an hour; filter with suction, mix the resulting precipitate with deionized water, filter with suction, repeat 3-5 times, after drying, copper ethyl xanthate powder is obtained;

[0029] Mix copper ethyl xanthate and zinc ethyl xanthate at a molar ratio...

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Abstract

The invention discloses a preparation method of a ZnO-CuO composite nano material. The preparation method comprises the following steps: stirring and dripping a potassium ethyl xanthate liquid into a zinc salt liquid; mixing obtained sediment with de-ionized water; drying to obtain zinc ethyl xanthate powder; stirring and dripping the potassium ethyl xanthate liquid into a copper salt liquid and drying to obtain copper ethyl xanthate powder; mixing copper ethyl xanthate and zinc ethyl xanthate to obtain powder A, and pre-mixing the powder A with the de-ionized water; adding an organic dispersant and an inorganic dispersant into a mixed liquid; drying and roasting, wherein the roasting temperature is 400 DEG C-500 DEG C, the temperature rising speed is 3 DEG C / min-10 DEG C / min and the roasting time is 2h-5h; and then cooling to room temperature to obtain the ZnO-CuO composite nano material. The method disclosed by the invention adopts a simple preparation process, is low in preparation cost, stable in performance and good in gas selectivity and has wide application prospect.

Description

technical field [0001] The invention relates to the technical field of composite nanomaterial preparation, in particular to a preparation method of ZnO-CuO composite material. Background technique [0002] Metal oxides such as ZnO, CuO, SnO 2 、WO 3 Due to the advantages of excellent performance, environmental friendliness, abundant resources, and low price, it has a wide range of applications in many fields, such as gas sensors, solar cell photoanodes, photoelectric water splitting for hydrogen production, photocatalysis, etc. Among them, ZnO and CuO are favored by researchers and industries as excellent gas-sensing materials, but metal oxides respond to most gases. By constructing metal oxides with different structures and crystal forms, the sensitivity, response / Recovery time, etc., but the difficult problem of poor selectivity is difficult to be solved. [0003] The invention provides a simple method for constructing ZnO-CuO composite nanomaterials to improve the gas-...

Claims

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Application Information

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IPC IPC(8): C01G3/02C01G9/02G01N33/00B82Y30/00B82Y40/00
CPCG01N33/00G01N33/0004B82Y30/00B82Y40/00C01G3/02C01G9/02G01N33/0003
Inventor 何丹农葛美英孙健武尹桂林金彩虹
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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