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Preparation method of Sn-doped ZnO nanocrystalline

A nanocrystal and tin doping technology, applied in the field of preparation of ZnO nanocrystals, can solve the problem of high calcination temperature

Inactive Publication Date: 2011-08-24
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Document 2 "Y.Ortega, P.Fern'andez, J.Piqueras. Growth and luminescence of oriented nanoplate arrays in tin doped ZnO. Nanotechnology 2007, 18: 115606." discloses a preparation method of tin-doped ZnO, which Methods Luminescent metal Sn-doped ZnO was prepared by ball milling at high temperature of 1280℃, but the calcination temperature was higher

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  • Preparation method of Sn-doped ZnO nanocrystalline
  • Preparation method of Sn-doped ZnO nanocrystalline
  • Preparation method of Sn-doped ZnO nanocrystalline

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Embodiment 1

[0015] Embodiment 1: Accurately weigh 4.4g Zn(NO 3 ) 2 ·6H 2 O, 0.053gSnCl 4 ·5H 2 O and 4.0 g NaOH. These three reagents were added to a ball mill, and ball milled for 10 minutes. Add 1.53 g of cationic surfactant cetyltrimethylammonium bromide and continue ball milling for 50 minutes. Before the material was dried, the material was washed with deionized water and absolute ethanol until no impurity ions existed. The obtained white powder was dried at 60° C. for 10 h in a blast drying oven. After drying and grinding to obtain a fine white powder, the fine white powder was calcined in a muffle furnace at 500° C. for 3 hours to obtain tin-doped ZnO nanocrystals.

[0016] from figure 1 It can be seen that the surface of the tin-doped ZnO nanocrystal prepared in Example 1 is assembled by short nanorods to form a spherical product similar to a hedgehog.

Embodiment 2

[0017] Embodiment 2: Accurately weigh 4.46g Zn(NO 3 ) 2 ·6H 2 O, 0.159g SnCl 4 ·5H 2 O and 4.2g NaOH. These three reagents were added into a ball mill, and ball milled and mixed for 12 minutes. Add 1.536 g of cationic surfactant cetyltrimethylammonium bromide and continue ball milling for 48 minutes. Before the material was dried, the material was washed with deionized water and absolute ethanol until no impurity ions existed. The obtained white powder was dried at 63° C. for 9 h in a blast drying oven. After drying, it was ground to obtain a fine white powder, which was calcined in a muffle furnace at 530° C. for 2.7 hours to obtain tin-doped ZnO nanocrystals.

Embodiment 3

[0018] Embodiment 3: Accurately weigh 4.48g Zn(NO 3 ) 2 ·6H 2 O, 0.465g SnCl 4 ·5H 2 O and 4.4g NaOH. These three reagents were added into a ball mill, and ball milled and mixed for 14 minutes. Add 1.538 g of cationic surfactant cetyltrimethylammonium bromide and continue ball milling for 46 minutes. Before the material was dried, the material was washed with deionized water and absolute ethanol until no impurity ions existed. The obtained white powder was dried at 66° C. for 9 h in a blast drying oven. After drying and grinding, a fine white powder was obtained, which was calcined in a muffle furnace at 560° C. for 2.3 hours to obtain tin-doped ZnO nanocrystals.

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Abstract

The invention discloses a preparation method of a Sn-doped ZnO nanocrystalline, which is used for solving the technical problem that the preparation temperature is high in the traditional preparation method for preparing the metal-Sn-doped ZnO. In a technical scheme, the preparation method comprises the following steps: mixing and grinding Zn(NO3)2.6H2O, SnCl4.5H2O and NaOH, adding a cationic surfactant, namely, hexadecyltrimethylammonium bromide, continuing grinding, and washing ground materials with deionized water and absolute alcohol before drying until no impurity ions exist; and drying and grinding obtained white powder, calcining in a muffle furnace to obtain the metal-Sn-doped ZnO. In the preparation method disclosed by the invention, the preparation temperature of the metal-Sn-doped ZnO is decreased to 500-600 DEG C from 1280 DEG C in the prior art.

Description

technical field [0001] The invention relates to a method for preparing ZnO nanocrystals, in particular to a method for preparing tin-doped ZnO nanocrystals. Background technique [0002] The research hotspot of synthetic chemistry lies in the continuous update of synthetic methods and the development of new materials, but the actual production requires new synthetic methods and processes to have high selectivity and high conversion rate, so as to reduce environmental pollution, save energy, simplify process flow. The solid-solid phase chemical reaction at or near room temperature is a new research field that has just developed in recent years. It not only greatly simplifies the synthesis process and reduces the cost, but also reduces the problems caused by intermediate steps and high-temperature solid-state reactions, such as product impurity, particle agglomeration, and difficulty in recycling, and provides a cheap and efficient method for the synthesis of nanomaterials T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/16C30B1/00C01G9/03
Inventor 贾晓华樊慧庆
Owner NORTHWESTERN POLYTECHNICAL UNIV
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