Synthetic method of tin dioxide nanomaterials

A technology of nanomaterials and tin dioxide, which is applied in the field of preparation of tin dioxide nanomaterials, can solve the problems of high equipment requirements, low product purity, large particle radius, etc., and achieve good repeatability, high product yield, and particle size small effect

Inactive Publication Date: 2011-12-07
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are inevitably some problems in the above methods, such as the high requirements for equipment in the vacuum condensation method and the vapor deposition method, the low purity of the product prepared by the precipitation method, and the large particle radius.

Method used

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  • Synthetic method of tin dioxide nanomaterials
  • Synthetic method of tin dioxide nanomaterials
  • Synthetic method of tin dioxide nanomaterials

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation process and steps in this embodiment are as follows:

[0020] 1. Measure 10 mL of absolute ethanol (CH 3 CH 2 OH) and 90 mL of deionized water were poured into a beaker and mixed evenly;

[0021] 2. Weigh 1.0738 g (5 mmol) of stannous sulfate (SnSO 4 ) and 4.4115 g (15 mmol) of trisodium citrate dihydrate (Na 3 C 6 h 5 o 7 2H 2 O);

[0022] 3. Put the weighed SnSO 4 and Na 3 C 6 h 5 o 7 2H 2 O was added to the above solution together, and stirred rapidly by magnetic force for 1 hour;

[0023] 4. Put the above mixed solution into a high-pressure reactor and react in an oven at 160°C for 12 hours;

[0024] 5. After the reaction product was cooled, it was washed three times with deionized water and absolute ethanol, and then dried at 80° C. for 12 hours to obtain tin dioxide nanomaterials.

[0025] The particle size of the obtained tin dioxide nanomaterials is in the range of 40-60 nm, and the monodispersity is good.

Embodiment 2

[0027] Implementation process is except following difference, and other is all identical with embodiment 1

[0028] 1. Measure 20 mL of absolute ethanol (CH 3 CH 2 OH) and 80 mL of deionized water were poured into a beaker and mixed evenly;

[0029] 4. Put the above mixed solution into a high-pressure reactor and react in an oven at 120°C for 36 hours;

[0030] The particle size of the obtained tin dioxide nanomaterials is in the range of 40-200 nm.

[0031]

Embodiment 3

[0033] Implementation process is except following difference, and other is all identical with embodiment 1

[0034] 2. Weigh 1.0738 g (5 mmol) of stannous sulfate (SnSO 4 ) and 0.7353 (2.5 mmol) of trisodium citrate dihydrate (Na 3 C 6 h 5 o 7 2H 2 O);

[0035] 4. Put the above mixed solution into a high-pressure reactor and react in an oven at 140°C for 24 hours;

[0036] The particle size of the obtained tin dioxide nanomaterials is in the range of 40–100 nm, but there are a large number of bulk SnO 2 generate.

[0037]

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Abstract

The invention relates to a preparation method of tin dioxide nanometer material. The specific steps of the method are as follows: using stannous sulfate (SnSO4) and trisodium citrate dihydrate (Na3C6H5O7 2H2O) as raw materials, the amount of the two is used as a measurement basis according to a certain molar ratio, that is, SnSO4:Na3C6H5O7 2H2O=2 :5~4, weigh it and add it to a certain amount of mixed solution of absolute ethanol and deionized water with a volume ratio of (1:9~9), stir it quickly for 1~2 hours and then put it into the autoclave React at 120-200°C for 2-48 hours, wash with deionized water and ethanol several times after cooling, and obtain tin dioxide nanomaterials after drying. The invention has simple process, good repeatability and can be produced in batches. The particle size of the obtained tin dioxide nanosphere is about 50nm, and the monodispersity is good.

Description

Technical field [0001] The present invention involves a preparation method for a tinbal nanoma material, which is the field of inorganic chemistry and material synthesis. Background technique [0002] Tin dioxide (SNO 2 ) It is a semiconductor oxide material with excellent performance. It has a wide band (3.6 EV), low resistance (10 -4 ~ 10 6 Ω? CM) and high light transparency.In addition, it also has the advantages of high reliability, stable physical and chemical properties, reversible detection of gas, low cost, etc., and is widely used in the fields of gas sensitivity sensors, lithium -ion batteries, glass coatings, photocatalytic, and solar cells and other fields.Essence [0003] In recent years, with the development of nano -science and technology, people have prepared a variety of nano -nanotechnology materials, such as nanoparticles, nanometer shells, nano -balls, nan naviles, nano -tubes, nanoles, etc.Among these materials, the tin nano -nano -nano -nano -ball ball has a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/02B82Y40/00
Inventor 张海娇焦正何青泉耿洪亚魏凤君刘刚
Owner SHANGHAI UNIV
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