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Preparation method of UiO-66 loaded tin sulfide nanoparticle photocatalyst

A nanoparticle and photocatalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., can solve problems such as limiting practical applications, and achieve improved photocatalytic activity Effect

Inactive Publication Date: 2020-03-27
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some MOFs materials are considered as promising candidates for photocatalysis due to their semiconductor behavior, however, most MOFs can only respond to ultraviolet light, thus limiting their practical applications.

Method used

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  • Preparation method of UiO-66 loaded tin sulfide nanoparticle photocatalyst
  • Preparation method of UiO-66 loaded tin sulfide nanoparticle photocatalyst
  • Preparation method of UiO-66 loaded tin sulfide nanoparticle photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1 Preparation method of UiO-66 loaded tin sulfide nanoparticle photocatalyst:

[0044] Firstly, using zirconium salt and organic ligand as precursor and polar solvent as dispersant, the octahedral UiO-66 white solid powder was prepared by solvothermal method. The specific process is as follows:

[0045] (1) Add 0.5000 g ZrCl 4 and 0.2507 g of terephthalic acid were dissolved in 50 mL of N,N'-dimethylformamide and stirred for 35 min, then 2.5 mL of acetic acid was added dropwise to the solution to adjust the morphology of UiO-66, and after stirring for 70 min , to obtain a homogeneous solution;

[0046] (2) The homogeneous solution was heated at 110°C for 24 hours, cooled to room temperature, and centrifuged at 7500 rpm for 5 minutes to obtain a white product;

[0047] (3) The white product was washed with distilled water and absolute ethanol three times in turn, and then vacuum-dried at 60°C to constant weight to obtain the obtained product.

[0048] Then, u...

Embodiment 2

[0051] Example 2 Preparation method of UiO-66 loaded tin sulfide nanoparticle photocatalyst:

[0052] Firstly, using zirconium salt and organic ligand as precursor and polar solvent as dispersant, the regular octahedral UiO-66 white solid powder was prepared by solvothermal method. The specific process is as follows:

[0053] (1) Add 0.2009 g ZrOCl 2 ·8H 2 O and 0.2016 g of 2-aminoterephthalic acid were dissolved in 60 mL of distilled water and stirred for 15 min, then 12.0 mL of acetic acid was added dropwise to the solution to adjust the form of UiO-66, and after continuing to stir for 100 min, a homogeneous solution was obtained;

[0054](2) The homogeneous solution was heated at 120°C for 36 hours, cooled to room temperature, and centrifuged at 8500 rpm for 10 minutes to obtain a white product;

[0055] (3) The white product was washed twice with distilled water and absolute ethanol in turn, and then vacuum-dried at 60°C to constant weight to obtain the obtained product...

Embodiment 3

[0059] Example 3 Preparation method of UiO-66 loaded tin sulfide nanoparticle photocatalyst:

[0060] Firstly, using zirconium salt and organic ligand as precursor and polar solvent as dispersant, the octahedral UiO-66 white solid powder was prepared by solvothermal method. The specific process is as follows:

[0061] (1) Add 0.0778 g Zr(NO 3 ) 4 ·5H 2 O and 0.1556 g of 2-aminoterephthalic acid were dissolved in a mixture of 35 mL of N,N'-dimethylformamide and distilled water and stirred for 60 min, then 12.3 mL of acetic acid was added dropwise to the solution to adjust UiO- 66, after stirring for 30 minutes, a uniform solution was obtained; the mixture of N,N'-dimethylformamide and distilled water refers to the volume of N,N'-dimethylformamide and distilled water at 1:0.8 Ratio (mL / mL) mixed uniformly obtained mixture;

[0062] (2) The homogeneous solution was heated at 100°C for 18 hours, cooled to room temperature, and centrifuged at 7500 rpm for 5 minutes to obtain a...

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Abstract

The invention relates to a preparation method of a UiO-66 loaded tin sulfide nanoparticle photocatalyst, wherein the method comprises the steps: by using zircon salt and an organic ligand as precursors and a polar solvent as a dispersing agent, preparing regular octahedron UiO-66 white solid powder by a solvothermal method; dispersing the regular octahedron UiO-66 white solid powder into distilledwater, and stirring at room temperature to form a uniform milk white solution; sequentially adding a tin source and a sulfur source into the milk white solution, ultrasonically dissolving and stirring for 20-50 min, transferring into an autoclave with a polytetrafluoroethylene lining, heating at constant temperature, cooling to room temperature, and centrifugally separating to obtain an orange product; and finally, sequentially washing the orange product with absolute ethyl alcohol and distilled water, and drying overnight to obtain the UiO-66 loaded tin sulfide nanoparticle photocatalyst recorded as SnS2NPS@UiO-66. The preparation method is simple to operate, the raw materials are easy to obtain, the cost is low, and the obtained photocatalyst has excellent photocatalytic degradation performance.

Description

technical field [0001] The invention relates to the field of composite material science and the technical field of wastewater treatment, in particular to a preparation method of UiO-66 loaded tin sulfide nano particle photocatalyst. Background technique [0002] Tetracycline (TC), as a broad-spectrum antibiotic, is widely used to prevent human and animal infections. Unfortunately, the tetracyclines that enter the human body or animals are only partially metabolized, and most of them are excreted in the form of urine and feces. It has been found that tetracycline is contained in various water bodies, which has caused great damage to the environment and human health. However, due to the high cost and time-consuming of traditional wastewater treatment methods, the residual antibiotics in water cannot be effectively removed. Therefore, it is necessary to develop a new efficient, low-cost, short-cycle and non-polluting effective method to reduce antibiotics in wastewater. To s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J27/04B01J35/10C02F1/30C02F101/38
CPCB01J31/2239B01J31/2243B01J31/1691B01J27/04C02F1/30B01J2531/48C02F2101/38C02F2305/10C02F2103/003B01J35/618B01J35/39
Inventor 何玉凤高娣王向原李伯珍王荣民
Owner NORTHWEST NORMAL UNIVERSITY
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