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Carbon-coated iron-doped zinc oxide and rapid synthetic method thereof

A synthesis method, iron doping technology, applied in the field of carbon-coated iron-doped zinc oxide (ZnO:Fe) and its rapid synthesis, to achieve strong light absorption, high crystal quality, and enhanced electrical conductivity

Active Publication Date: 2015-08-19
菏泽维特食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, there are few reports on the single-step synthesis of black ZnO

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  • Carbon-coated iron-doped zinc oxide and rapid synthetic method thereof
  • Carbon-coated iron-doped zinc oxide and rapid synthetic method thereof

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Experimental program
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Effect test

Embodiment 1

[0025] Weigh 1.5 g of zinc nitrate, 0.4 g of ferric nitrate, 0.7 g of citric acid, and 0.1 g of ammonium nitrate, respectively, to prepare an aqueous solution, stir and dissolve until a transparent solution is obtained. The solution was heated to 80 °C, and the water was continuously evaporated to a viscous gel state. The gel was heated in an environment of 250 °C, and the gel self-propagatingly burned within a few minutes to obtain a black loose powder. The obtained powder was added into ethanol to wash and dried to obtain high-purity carbon-coated ZnO:Fe powder.

Embodiment 2

[0027] Weigh 1.5 g of zinc nitrate, 0.25 g of ferric chloride, 1 g of citric acid, and 0.2 g of ammonium nitrate, respectively, to prepare an aqueous solution, stir and dissolve until a transparent solution is obtained. The solution was heated to 100 °C, and the water was continuously evaporated to a viscous gel state. The gel was heated in an environment of 180 °C, and the gel self-propagatingly burned within a few minutes to obtain a black loose powder. The obtained powder was added into ethanol to wash and dried to obtain high-purity carbon-coated ZnO:Fe powder.

Embodiment 3

[0029] Weigh 0.7 g of zinc chloride, 0.1 g of ferric sulfate, 0.4 g of glycine and 0.4 g of ammonium nitrate, respectively, to prepare an aqueous solution, stir and dissolve to a transparent solution. The solution was heated to 50 °C, and the water was continuously evaporated to a viscous gel state. The gel was heated in an environment of 290 °C, and the gel self-propagatingly burned within a few minutes to obtain a black loose powder. The obtained powder was added into deionized water to wash and dried to obtain high-purity carbon-coated ZnO:Fe powder.

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Abstract

The invention belongs to the fields of a novel material, a novel energy and a semiconductor, and especially relates to a carbon-coated iron-doped zinc oxide (ZnO: Fe) and a rapid synthetic method. The method comprises the following steps: weighting soluble zinc salt, ferric salt, an organic fuel and a combustion auxiliary agent to prepare an aqueous solution, stirring and dissolving to obtain a transparent solution; heating the solution to 50-100 DEG C, continuously drying to a viscous gel state; heating the gel to 180-290 DEG C, generating self-propagating combustion on gel to obtain black loosening powder; adding the obtained powder in the solvent, and cleaning and drying to obtain the high-purity object material. The obtained ZnO: Fe has high crystallization quality and strong light absorption capacity, is expected to be used in the fields of high efficiency photocatalysis, photodetection, solar energy battery and dilute magnetic semiconductor devices; the black carbon enhances conductive capability, and the carbon-coated iron-doped zinc oxide can be used in a lithium ion battery and a super capacitor. The method has the advantages of low technical cost, prevention of conventional multi-step complex process, long technology period and expensive equipment, and is suitable for industrial large-scale production.

Description

technical field [0001] The invention belongs to the fields of new materials, new energy sources and semiconductors, in particular to a carbon-coated iron-doped zinc oxide (ZnO:Fe) and a rapid synthesis method thereof, and carbon-coated iron-doped zinc oxide is used in photocatalysis and lithium ion batteries It has important application prospects in many fields such as solar cells and dilute magnetic semiconductor devices. Background technique [0002] Zinc oxide (ZnO) has excellent photoelectromagnetic properties and catalytic properties, and has become a research hotspot in the field of inorganic materials. ZnO is a II-VI wide bandgap semiconductor material with a bandwidth of up to 3.37eV at room temperature, a large exciton binding energy (60mev), excellent chemical properties, thermal stability, good luminescence and photoelectric conversion And other properties, so that it has a wide range of potential applications in many fields, and can be used in luminescent materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02
Inventor 夏国栋陈力王素梅
Owner 菏泽维特食品有限公司
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