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Hydrothermal synthesis method of stannous oxide nanosheet

A technology of hydrothermal synthesis and stannous oxide, which is applied in the direction of stannous chloride, tin halide, nanotechnology, etc., can solve the problems of small specific surface area and low purity of production process, and achieve the effect of high efficiency and low cost in the preparation process

Inactive Publication Date: 2019-07-23
HENAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production process of stannous oxide has low purity and small specific surface area, so it is a better choice to synthesize a flake stannous oxide with large specific surface area

Method used

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  • Hydrothermal synthesis method of stannous oxide nanosheet
  • Hydrothermal synthesis method of stannous oxide nanosheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Step S1: Disperse 0.677g of stannous chloride in a mixed solution of ethanol and deionized water with a volume ratio of 1:1 in 40mL to obtain solution A, and disperse and dissolve 0.24g of sodium hydroxide in 30mL of ethanol with a volume ratio of 1:1. Solution B was obtained in a mixed solution of ethanol and deionized water, and solution A and solution B were mixed and stirred for 2.5 hours to obtain a milky white yellowish colloidal product;

[0015] Step S2: Put the milky white yellowish colloidal product obtained in step S1 in a reaction kettle for 8 hours at 120°C, filter with suction, wash with deionized water and ethanol alternately for three times each, a small part of the sample in the upper layer is white, and most of the samples in the lower layer It is black, and the lower black sample is put into an oven to dry to obtain nano-flaky stannous chloride.

Embodiment 2

[0017] Step S1: Disperse 0.677g of stannous chloride in 50mL of a mixed solution of ethanol and deionized water with a volume ratio of 1:1 to obtain solution A, and disperse and dissolve 0.24g of sodium hydroxide in 20mL of ethanol with a volume ratio of 1:1. Solution B was obtained in a mixed solution of ethanol and deionized water, and solution A and solution B were mixed and stirred for 2.5 hours to obtain a milky white yellowish colloidal product;

[0018] Step S2: Put the milky white yellowish colloidal product obtained in step S1 in a reaction kettle for 8 hours at 120°C, filter with suction, wash with deionized water and ethanol alternately for three times each, a small part of the sample in the upper layer is white, and most of the samples in the lower layer It is black, and the lower black sample is put into an oven to dry to obtain nano-flaky stannous chloride.

Embodiment 3

[0020] Step S1: Disperse 0.8g of stannous chloride in 40mL of a mixed solution of ethanol and deionized water with a volume ratio of 1:1 to obtain solution A, and disperse and dissolve 0.24g of sodium hydroxide in 30mL of ethanol with a volume ratio of 1:1 Solution B was obtained in a mixed solution of ethanol and deionized water, and solution A and solution B were mixed and stirred for 2.5 hours to obtain a milky white yellowish colloidal product;

[0021] Step S2: Put the milky white yellowish colloidal product obtained in step S1 in a reaction kettle for 8 hours at 120°C, filter with suction, wash with deionized water and ethanol alternately for three times each, a small part of the sample in the upper layer is white, and most of the samples in the lower layer It is black, and the lower black sample is put into an oven to dry to obtain nano-flaky stannous chloride.

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Abstract

The invention discloses a hydrothermal synthesis method of stannous oxide nanosheet. 0.677-1 g of stannous chloride and 0.24-0.5 g of sodium hydroxide are respectively dispersed in mixed solutions ofethanol and deionized water to obtain a solution A and a solution B, mixing and stirring the solution A and the solution B for 2.5 h to obtain a milky yellowish colloidal product; and the obtained milky yellowish colloidal product is placed in a reactor for reaction at 120 DEG C for 8 h, pumping filtration is carried out, the product is alternately washed with deionized water and ethanol for threetimes, a small part of a sample at an upper layer is white, most of the sample at a lower layer is black, and the black sample at the lower layer is placed into a baking box for drying to obtain nano-flake stannous oxide. The hydrothermal synthesis method of the stannous oxide nanosheet of the invention is high in efficiency, low in cost, environmentally friendly and easy in storage.

Description

technical field [0001] The invention belongs to the technical field of synthesis of photocatalytic materials, and in particular relates to a hydrothermal synthesis method of stannous oxide nanosheets. Background technique [0002] Energy and environmental issues have attracted widespread attention worldwide, and it is imminent to establish a clean energy system. As a renewable clean energy with high energy density, hydrogen plays an important role in this system. Not only that, it is also used in fuel cells, and can be used in the chemical industry, such as a large amount of hydrogen for the synthesis of ammonia. [0003] At present, hydrogen is mainly produced by fossil energy, such as the steam reforming of natural gas. Considering energy and environmental concerns, it is clear that this is not a suitable method for producing hydrogen. Therefore, people began to look for better methods, and hydrogen production by photoelectric hydrolysis is one of the important ones. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/06B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G19/06C01P2004/20
Inventor 王晓兵何军炀赵晓华崔佳宝周慧然杨林刘胜男李钰茜娄向东
Owner HENAN NORMAL UNIV
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