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Preparation method of AgIn5S8/SnS2 solid solution catalyst with adsorption-photocatalysis synergistic effect

A synergistic effect and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve problems such as poor utilization rate, achieve high adsorption capacity, strong light absorption, and strong photocatalysis The effect of degradability

Active Publication Date: 2020-02-04
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to propose a kind of AgIn with adsorption-photocatalysis synergistic effect in view of the disadvantages of existing photocatalysts such as large band gap energy, corresponding only in the ultraviolet region, and poor utilization rate. 5 S 8 / SnS 2 solid solution catalyst

Method used

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  • Preparation method of AgIn5S8/SnS2 solid solution catalyst with adsorption-photocatalysis synergistic effect
  • Preparation method of AgIn5S8/SnS2 solid solution catalyst with adsorption-photocatalysis synergistic effect
  • Preparation method of AgIn5S8/SnS2 solid solution catalyst with adsorption-photocatalysis synergistic effect

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Experimental program
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Effect test

Embodiment 1

[0029] (1) 3.5 g SnCl 4 ·5H 2 O was dispersed in 60 mL of deionized water under continuous magnetic stirring, and stirred at room temperature for 30 minutes to obtain a pale yellow mixed solution;

[0030] (2) Slowly add 2.254 g (30 mmol) of thioacetamide and 1.921 g (10 mmol) of citric acid into the above mixed solution in sequence, and stir magnetically for 2 h at room temperature;

[0031] (3) Transfer the fully reacted solution to a reaction kettle, and conduct a hydrothermal reaction at 150 °C for 12 hours. After the reaction is completed, it is naturally cooled to room temperature, vacuum filtered through a 0.22 m filter membrane, and then deionized water and anhydrous Washed several times with ethanol and dried at 60°C for 24 h. You can get AgIn 5 S 8 / SnS 2 solid solution catalyst.

Embodiment 2

[0033] (1) 0.05 g AgNO 3 , 4.5 g InCl 3 ·5H 2 O and 0.45 g of thioacetamide were dispersed in 60 mL of deionized water under continuous magnetic stirring, and stirred at room temperature for 2 h to obtain a pale yellow mixed solution;

[0034] (2) Transfer the fully reacted solution to a reaction kettle, and conduct a hydrothermal reaction at a temperature of 150 °C for 12 hours. After the reaction is completed, naturally cool to room temperature, vacuum filter through a 0.22 m filter membrane, and then use deionized water and anhydrous Washed several times with ethanol and dried at 60°C for 24 h. You can get AgIn 5 S 8 / SnS 2 solid solution catalyst.

Embodiment 3

[0036] (1) 3.5 g SnCl 4 ·5H 2O, 0.01 g AgNO 3 and 0.15 g InCl 3 ·5H 2 O was dispersed in 60 mL of deionized water under continuous magnetic stirring, and stirred at room temperature for 30 minutes to obtain a pale yellow mixed solution;

[0037] (2) Slowly add 2.254 g (30 mmol) of thioacetamide and 1.921 g (10 mmol) of citric acid into the above mixed solution in sequence, and stir magnetically for 2 h at room temperature;

[0038] (3) Transfer the fully reacted solution to a reaction kettle, and conduct a hydrothermal reaction at 150 °C for 12 hours. After the reaction is completed, it is naturally cooled to room temperature, vacuum filtered through a 0.22 m filter membrane, and then deionized water and anhydrous Washed several times with ethanol and dried at 60°C for 24 h. You can get AgIn 5 S 8 / SnS 2 solid solution catalyst.

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Abstract

The invention discloses a synthesis method of an AgIn5S8 / SnS2 type visible-light-induced photocatalyst with an adsorption-photocatalysis synergistic effect, wherein the method comprises the followingsteps: (1) dispersing a certain amount of an inorganic tin source, an inorganic indium source and an inorganic silver source as raw materials into deionized water under continuous stirring, and stirring at room temperature for 30 min; (2) slowly adding thioacetamide and citric acid into the mixed solution in sequence, and magnetically stirring for 2 h at room temperature; and (3) transferring thefully reacted solution into a reaction kettle, carrying out a hydrothermal reaction for 12 h at the temperature of 150 DEG C, naturally cooling to room temperature, carrying out vacuum filtration through a filter membrane, washing for multiple times by deionized water and absolute ethyl alcohol, and drying for 24 h at the temperature of 60 DEG C. The solid solution catalyst provided by the invention can effectively realize efficient separation, transfer and migration of photo-induced electron-hole pairs, and has relatively good stability and relatively strong visible light absorption; the adsorption effect is good, and a remarkable effect on degradation of pollutants is achieved.

Description

technical field [0001] The invention relates to an AgIn with adsorption-photocatalysis synergistic effect 5 S 8 / SnS 2 Preparation method of solid solution catalyst. The adsorption-photocatalysis synergistic effect of this catalyst has a significant effect on the degradation of pollutants. Background technique [0002] Today's society is developing at a high speed, and the ensuing industrialization has given this limited and already overburdened [0003] The world is under enormous pressure, including the growing problem of water pollution. These wastewaters contain difficult-to-degrade pollutants such as heavy metals, organic-inorganic compounds, and biological organic matter, which are difficult to degrade naturally, will persist in the environment, and continue to cause harm for a long time after discharge. Therefore, more and more scholars turn their attention to wastewater treatment, and design and develop efficient technologies to deal with practical problems and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/04B01J35/10C02F1/28C02F1/30B01J20/02B01J20/30C02F101/38
CPCB01J27/04C02F1/30C02F1/281B01J20/0233B01J20/0251B01J20/0248B01J20/0266C02F2305/10C02F2101/38B01J35/613B01J35/39
Inventor 邓芳郑炀
Owner NANCHANG HANGKONG UNIVERSITY
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