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A zno load cdin 2 the s 4 Preparation method and application of nanocube composite photocatalyst

A cube and composite light technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., to achieve large specific surface area, facilitate large-scale production, and wide spectral response range

Active Publication Date: 2019-08-27
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, ZnO and CdIn 2 S 4 Combined composite materials have not been reported yet

Method used

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  • A zno load cdin <sub>2</sub> the s <sub>4</sub> Preparation method and application of nanocube composite photocatalyst
  • A zno load cdin <sub>2</sub> the s <sub>4</sub> Preparation method and application of nanocube composite photocatalyst
  • A zno load cdin <sub>2</sub> the s <sub>4</sub> Preparation method and application of nanocube composite photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Measure absolute ethanol and deionized water in a beaker in sequence to obtain 30 mL of ethanol aqueous solution, wherein the volume ratio of absolute ethanol and deionized water is 1:0.5.

[0035](2) Weigh 0.1233g, 0.3056g and 0.2104g of cadmium nitrate, indium nitrate hydrate and thioacetamide respectively, and add them in sequence to the ethanol aqueous solution obtained in step (1). Stir for 10 minutes and sonicate for 5 minutes to form a yellowish solution. Transfer the obtained solution to a polytetrafluoroethylene-lined autoclave for 24 hours at 180 ° C. After the reactor is cooled to room temperature, the solid in the solution is After centrifugation and ultrasonic cleaning with ethanol and water for three times, dry at 80°C for 12 hours to synthesize CdIn 2 S 4 The nano cube is 0.187g, and the side length of the cube is 50-100nm.

[0036] (3) Weigh 0.06g CdIn 2 S 4 Add nanocubes to 10ml of deionized water, and sonicate for 10 minutes to obtain CdIn 2 S...

Embodiment 2

[0044] (1) Sequentially measure absolute ethanol and deionized water into a beaker to obtain 60 mL of ethanol aqueous solution, wherein the volume ratio of absolute ethanol and deionized water is 1:0.7.

[0045] (2) Weigh 1.233g, 3.056g and 2.104g of cadmium nitrate, indium nitrate hydrate and thioacetamide respectively, and add them in sequence to the aqueous ethanol solution obtained in step (1). Stir for 15 minutes and sonicate for 10 minutes to form a yellowish solution. Transfer the obtained solution to a polytetrafluoroethylene-lined autoclave for 28 hours at 180°C. After the reactor is cooled to room temperature, the solid in the solution is After centrifugation and ultrasonic cleaning with ethanol and water for three times, dry at 80°C for 12 hours to synthesize CdIn 2 S 4 The nano cube is 1.87g, and the side length of the cube is 50-100nm.

[0046] (3) Weigh 0.5g CdIn 2 S 4 Add nanocubes into 50ml deionized water, and ultrasonicate for 15min to obtain CdIn 2 S 4...

Embodiment 3

[0053] (1) Sequentially measure absolute ethanol and deionized water into a beaker to obtain 90 mL of ethanol aqueous solution, wherein the volume ratio of absolute ethanol and deionized water is 1:0.8.

[0054] (2) Weigh 2.466g, 6.112g and 4.208g of cadmium nitrate, indium nitrate hydrate and thioacetamide respectively, and add them to the aqueous ethanol solution obtained in step (1) in sequence. Stir for 20 minutes and sonicate for 15 minutes to form a yellowish solution. Transfer the obtained solution to a polytetrafluoroethylene-lined autoclave for 32 hours at 180 ° C. After the reactor is cooled to room temperature, the solid in the solution is After centrifugation and ultrasonic cleaning with ethanol and water for three times, dry at 80°C for 12 hours to synthesize CdIn 2 S 4 The nano cube is 3.74g, and the side length of the cube is 50-100nm.

[0055] (3) Weigh 1.5g CdIn 2 S 4 Add nanocubes to 100ml of deionized water, and sonicate for 20 minutes to obtain CdIn 2 ...

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Abstract

The invention belongs to the field of inorganic nanomaterials and relates to a ZnO loaded CdIn 2 S 4 Preparation method of nanocube composite photocatalyst and its application in the field of environmental management. The invention uses cadmium nitrate tetrahydrate, indium nitrate monohydrate and thioacetamide as raw materials to synthesize CdIn 2 S 4 Nanocubes, followed by synthesis of ZnO supported CdIn via deposition and hydrothermal methods 2 S 4 Nanocube composite, this composite material has the advantages of large specific surface area, wide spectral response range, strong light harvesting ability, easy separation of photogenerated carriers, etc., and shows extremely excellent solar photocatalytic degradation ability. ZnO loaded CdIn 2 S 4 The nanocube composite material can utilize the synergistic effect of the two to achieve effective transfer and separation of photogenerated carriers, and broaden the light absorption range of the composite, enabling the composite to effectively degrade tetracycline hydrochloride and ofloxacin under sunlight. .

Description

technical field [0001] The invention belongs to the field of inorganic nanometer materials, and relates to a ZnO loaded CdIn 2 S 4 Preparation method of nano-cube composite photocatalyst and its application in the field of environmental governance. Background technique [0002] With the rapid development of human society, environmental pollution and energy depletion have become the primary problems that curb human progress, and photocatalytic technology based on semiconductor materials provides a new idea to solve the above problems and has received extensive attention. However, most of the current photocatalysts can only be excited by ultraviolet light (accounting for only 3-5% of sunlight) due to their wide band gap, and cannot effectively utilize visible light, which accounts for a large proportion of sunlight, resulting in very low quantum yields. low, which limits its development. Therefore, the development of semiconductor materials with high-efficiency full-band so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/04
CPCB01J27/04B01J35/39
Inventor 彭志远王湘栋张帅斌朱坤蒋银花张文莉
Owner JIANGSU UNIV
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