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Preparation method of zinc stannate nanocube or nanosheet material

A nano-cube, zinc stannate technology, applied in chemical instruments and methods, tin compounds, inorganic chemistry, etc., can solve the problem of high energy consumption, achieve the effects of good reproducibility, easy mass production and low price

Inactive Publication Date: 2017-12-08
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the synthesis methods of zinc stannate materials use the traditional high-temperature solid-state reaction, which requires high energy consumption.

Method used

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  • Preparation method of zinc stannate nanocube or nanosheet material
  • Preparation method of zinc stannate nanocube or nanosheet material
  • Preparation method of zinc stannate nanocube or nanosheet material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add 1mmoL zinc acetate, 0.5mmoL tin tetrachloride and 1mmoL sodium dodecylbenzenesulfonate into a 50mL Erlenmeyer flask containing a mixture of 15mL water and 15mL ethanol, and stir in a water bath at 30°C for 120min. Then, 3 mL of tetraethylamine hydroxide was added dropwise to the above solution, reacted for 90 min, and set aside. Pour the above-mentioned zinc stannate precursor solution into a 50mL polytetrafluoroethylene-backed reaction kettle, seal it, place it in an oven, control the temperature of the oven at 180°C, react for 5 hours, cool to room temperature, wash and vacuum Dry to obtain zinc stannate cubes. figure 1 The positions and relative intensities of the diffraction peaks are consistent with the JPCDS card (24-1470) of the zinc stannate cube, indicating that the product zinc stannate has a high degree of crystallinity. from figure 2 It can be seen that the prepared zinc stannate cubes are uniformly dispersed and regular in shape, and the average edge...

Embodiment 2

[0032] Add 1mmoL of zinc nitrate, 0.5mmoL of tin tetrachloride and 1mmoL of sodium dodecylbenzenesulfonate into a 50mL Erlenmeyer flask containing a mixture of 15mL of water and 15mL of ethanol, and stir in a water bath at 60°C for 30min. Then, 3 mL of tetraethylamine hydroxide was added dropwise to the above solution, reacted for 1 h, and set aside. Pour the above-mentioned zinc stannate precursor solution into a 50mL polytetrafluoroethylene-backed reaction kettle, seal it, place it in an oven, control the temperature of the oven at 220°C, react for 8 hours, cool to room temperature, wash it several times, vacuum After drying, large-sized zinc stannate cubes are obtained. figure 1 The positions and relative intensities of the diffraction peaks are consistent with the JPCDS card (24-1470) of the zinc stannate cube, indicating that the product zinc stannate has a high degree of crystallinity. from image 3 It can be seen that with the prolongation of the reaction time, the cu...

Embodiment 3

[0034] Add 1mmoL of zinc chloride, 0.5mmoL of tin tetrachloride and 0mmoL of sodium dodecylbenzenesulfonate into a 50mL Erlenmeyer flask containing a mixture of 15mL of water and 15mL of ethanol, and stir in a water bath at 60°C for 30min. Then, 3 mL of tetraethylamine hydroxide was added dropwise to the above solution, reacted for 1 h, and set aside. Pour the above-mentioned zinc stannate precursor solution into a 50mL polytetrafluoroethylene-backed reaction kettle, seal it, place it in an oven, control the temperature of the oven at 220°C, react for 8 hours, cool to room temperature, wash it several times, vacuum After drying, zinc stannate nanosheets are obtained.

[0035] figure 1 The positions and relative intensities of the diffraction peaks are consistent with the JPCDS card (24-1470) of zinc stannate nanosheets, indicating that the product zinc stannate has a high degree of crystallinity. from Figure 4 It can be seen that when other reaction conditions remain uncha...

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Abstract

The invention belongs to the technical field of nanometer materials, and concretely relates to a preparation method of a zinc stannate nanocube or a nanosheet material. The invention adopts a higher-temperature hydrothermal synthesis method so as to directly obtain a metal oxide material with the nanocube or a nanosheet structure. The preparation method comprises the steps of adopting sodium dodecyl benzene sulfonate as an external acidifying source, adopting tetraethylammonium hydroxide as an external alkalifying source, adjusting different hydrothermal times to adjust the size of the cube, adjusting the dosage of the sodium dodecyl benzene sulfonate to optimize the shape of the material, and finally obtaining the metallic oxide hierarchical-structure nanometer material with a regular shape and a stable structure. The method provided by the invention is mild and controllable in experiment conditions, high in practicability, and good in reproducibility.

Description

technical field [0001] The invention belongs to the technical field of nanocomposite materials, and in particular relates to the preparation of a novel zinc stannate nanocube or nanosheet material. Background technique [0002] With the rapid development of economy and society, environmental degradation and energy depletion caused by fossil energy have attracted great attention from all countries. The key to alleviating energy and environmental problems is to find new materials to store existing energy or degrade pollution. Among many materials, zinc stannate, as an important ternary semiconductor oxide, has unique optical, electrochemical, photoelectrochemical and other properties, so it has attracted widespread attention. For example, previous studies have found that the material can be used as a working electrode for fuel-sensitized solar cells due to its high electron mobility and fast electron transport rate; it can be used as an anode material for lithium batteries due...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/00
CPCC01G19/00C01P2002/72C01P2004/03C01P2004/30
Inventor 徐乐赵岩连加彪黄云鹏
Owner JIANGSU UNIV
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