Preparation method and application of tin sulfide material

A technology of tin sulfide and preparation steps, applied in chemical instruments and methods, nanotechnology for materials and surface science, tin compounds, etc., to achieve the effects of easy industrial production, simple process, and high photocatalytic activity

Active Publication Date: 2016-07-27
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report on the use of SnS photocatalytic materials prepared by this method for photocatalytic degradation of organic wastewater.

Method used

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  • Preparation method and application of tin sulfide material
  • Preparation method and application of tin sulfide material
  • Preparation method and application of tin sulfide material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) First, 8mmolSnCl 2 2H 2 O and 16mmolNa 2 S·9H 2 Dissolve O in 40mL and 20mL solvents respectively, and sonicate until dissolved, then add 0.9026g polyvinylpyrrolidone into 20mL solvent, sonicate until dissolved;

[0032] (2) The above SnCl 2 2H 2 O solution, Na 2 S·9H 2 O solution and polyvinylpyrrolidone solution were added dropwise into a hydrothermal reactor (150mL) in sequence, and 20mL of solvent was added, and after magnetic stirring for 20min, the temperature of the hydrothermal reactor was set at 160°C for reaction, and the reaction time was 24h;

[0033] (3) The precipitate obtained in step (2) was taken out and washed three times with deionized water and ethanol respectively until the filtrate was clear; the obtained product was dried at 50°C for 12 hours to obtain SnS nanorods with controllable morphology. The average diameter of nanorods is 25~100nm, and the length is about 1μm, such as image 3 shown.

Embodiment 2

[0035] (1) First, 8mmolSnCl 2 2H 2 0.0 and 8mmol of thiourea were dissolved in 40mL and 20mL of solvent respectively, and ultrasonicated until dissolved respectively; secondly, 0.9026g of polyvinylpyrrolidone was added to 20mL of solvent, and ultrasonicated until dissolved;

[0036] (2) Add the above solution dropwise into a hydrothermal reaction kettle (150mL) in sequence, and add 20mL of solvent, and after magnetic stirring for 15 minutes, set the temperature of the hydrothermal reaction kettle at 120°C for reaction, and the reaction time is 17h;

[0037] (3) The precipitate obtained in step (2) was taken out and washed four times with deionized water and ethanol, respectively, until the filtrate was clear, and the obtained product was dried at 45°C for 12 hours to obtain rod-shaped SnS with controllable morphology. The average diameter of rod-shaped SnS is about 1 μm, and the length is about 4.5~5 μm, such as Figure 4 shown; Figure 8 It is shown that the smaller particle...

Embodiment 3

[0039] (1) First, 3mmolSnCl 2 2H 2 0 and 12mmol of thioacetamide TAA were dissolved in 40mL and 20mL solvents respectively, and ultrasonicated until dissolved; secondly, 0.6770g cetyltrimethylammonium bromide was added to 20mL solvent, and ultrasonicated until dissolved;

[0040] (2) Add the above solution dropwise into the hydrothermal reaction kettle (150mL) one by one, and add 20mL of solvent. After magnetically stirring for 10 minutes, set the temperature of the hydrothermal reaction kettle at 120°C for reaction, and the reaction time is 24h;

[0041] (3) Take out the precipitate obtained in step (2) and wash it with deionized water and ethanol for 5 times until the filtrate becomes clear; dry the obtained product at 40°C for 12 hours to obtain flower-like SnS with controllable morphology. Its average diameter is about 600nm, such as figure 1 , 2 , 5, it can be seen from the figure that the prepared SnS material is consistent with the standard card, and its lattice para...

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Abstract

The invention discloses a preparation method of a tin sulfide material. A solvothermal method is adopted, dehydrate-stannous chloride is used as a tin source, the morphology and particle size of the synthetic material are controlled by controlling a sulfur source, the reaction temperature, reaction time, the solvent variety and the surfactant variety, and the SnS photocatalytic material with controllable morphology and high quality is prepared. The method is simple in preparation and easy to carry out, the yield is high, consumed time is short, cost is low, reaction conditions are mild, good development prospects are achieved, industrial production is easy to achieve, and the prepared material has high photocatalytic activity and has good industrial application prospects when serving as the photocatalytic material.

Description

technical field [0001] The invention relates to material preparation technology, pollutant monitoring and photocatalytic degradation technology, in particular to a preparation method and application of a shape-controllable tin sulfide (SnS) material. Background technique [0002] Photocatalytic materials have two major functions of photo-splitting water to produce hydrogen and photo-degrading organic pollutants, so they have important application prospects in solving energy and environmental problems. With the rapid development of social economy, various toxic organic pollutants from industrial and agricultural production seriously threaten the environment and human health. Therefore, it is of great significance to seek a new and efficient environmental governance technology. Photocatalytic technology has become a new hope for future high-tech due to its characteristics of energy saving, high efficiency, complete degradation of pollutants, and no secondary pollution. Profe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/00B01J27/04C02F1/30B82Y30/00B82Y40/00
CPCY02W10/37C01G19/00B01J27/04B01J35/023B82Y30/00B82Y40/00C01P2004/64C02F1/30
Inventor 贾庆明姚凯利李俊陕绍云苏红莹
Owner KUNMING UNIV OF SCI & TECH
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