Photo-functional composite, preparation method thereof and serial photocatalytic application

A composite material and functional technology, applied in the field of photocatalytic materials, can solve the problems of unseen catalytic multi-component series reactions, harsh reaction conditions, expensive oxidants, etc., to improve photocatalytic efficiency and reusability, reaction The effect of mild conditions and low energy consumption

Active Publication Date: 2019-01-04
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been noticed that these oxidant oxidation systems are accompanied by many unfavorable factors, such as long reaction time, harsh reaction conditions, expensive oxidant, high toxicity, many by-products, serious pollution, etc.
However, there have been no reports on materials that catalyze multi-component cascade reactions.

Method used

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  • Photo-functional composite, preparation method thereof and serial photocatalytic application
  • Photo-functional composite, preparation method thereof and serial photocatalytic application
  • Photo-functional composite, preparation method thereof and serial photocatalytic application

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preparation example Construction

[0035] Another aspect of the embodiments of the present invention provides the aforementioned preparation method of the photofunctional composite material, which includes: polyoxometalate, copper salt, and NTB in a molar ratio of 1:5:5 to 1:5:10 The ligands are fully mixed in the solvent, and then cured at 110-130° C. for 60-84 hours to obtain orange-yellow block crystals, which are the optical functional composite materials.

[0036] In some embodiments, the molar ratio of the polyoxometalate, copper salt and NTB ligand is (0.01-0.05): (0.05-0.10): (0.05-0.10), specifically, the polyoxometalate The amounts of salt, copper salt and NTB ligand are 0.01-0.05 mmol, 0.05-0.10 mmol and 0.05-0.10 mmol, respectively.

[0037] Further, the copper salt includes copper nitrate hydrate, preferably copper nitrate trihydrate, but not limited thereto.

[0038] Further, the polyoxometalates include (TBA) 4 [W 10 o 32 ], but not limited to this.

[0039] Further, the solvent includes DMF, ...

Embodiment 1

[0052] Example 1: Preparation of photofunctional POM@PCP composite material

[0053] Will (TBA) 4 [W 10 o 32 ] (33.2mg, 0.01mmol), Cu(NO 3 ) 2 ·3H 2 O (12.1mg, 0.05mmol) and NTB (22.3mg, 0.05mmol) were added to a mixture of N,N-dimethylformamide (DMF, 2.0mL) and water (0.5mL) for stirring, and 1mol· L –1 HCl adjusted the pH of the system to 2.6, stirred at room temperature for 20 minutes, then added the above suspension into a 25mL polytetrafluoroethylene reactor, baked at 120°C for 72 hours, and finally cooled to room temperature to obtain orange Blocky crystals were washed 3 times with DMF and dried at room temperature. The yield was about 49%.

Embodiment 2

[0054] Example 2: Preparation of photofunctional POM@PCP composite material

[0055] Will (TBA) 4 [W 10 o 32 ] (33.2mg, 0.01mmol), Cu(NO 3 ) 2 ·3H 2 O (12.1mg, 0.05mmol) and NTB (44.6mg, 0.10mmol) were added to a mixture of N,N-dimethylformamide (DMF, 3.0mL) and water (2.0mL) for stirring, and 1mol· L –1 HCl adjusted the pH of the system to 2.5, stirred at room temperature for 30 minutes, then added the above suspension into a 25mL polytetrafluoroethylene reactor, baked at 110°C for 84 hours, and finally cooled to room temperature to obtain orange Blocky crystals were washed 3 times with DMF and dried at room temperature. The yield was about 51%.

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PUM

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Abstract

The invention discloses a photo-functional composite, a preparation method thereof and serial photocatalytic application. The photo-functional composite has a chemical formula of [Cu2(NTB)2(W6O19)] DMF, wherein NTB is 4-(4H-1,2,4-triazole-4-yl)-N,N-bis[4-(4H-1,2,4-triazole-4-yl)phenyl]-aniline; NTB has a simple structural formula shown in the description. The photo-functional composite crystallizes as monoclinic system, having a spatial group of P2(1) / c and lattice parameters shown in description. The photo-functional composite has the serial catalytic function to photocatalytically decomposewater to produce oxygen and selectively oxidize thioether to prepare sulfoxide; the preparation method is simple; the yield is high.

Description

technical field [0001] The invention relates to a photofunctional composite material, in particular to a photofunctional POM@PCP composite material and a preparation method thereof, and the application of the composite material in series photocatalysis, belonging to the technical field of photocatalytic materials. Background technique [0002] The oxidation of sulfide will generate two kinds of products, sulfoxide and sulfone, among which sulfoxide is a very useful intermediate of organic synthesis, they have anti-ulcer (proton pump inhibitor), anti-bacterial, anti-fungal, anti-atherosclerosis, repellent Anthelmintic drugs, antihypertensives, cardiac drugs, psychotropic drugs and vasodilators play an important role. Sulfoxides are generally prepared by selective oxidation of corresponding sulfides, usually using halogen, nitric acid or nitrate oxidation systems. However, it has been noticed that these oxidant oxidation systems are accompanied by many unfavorable factors, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00B01J31/34C01B13/02C07C315/02C07C317/14
CPCB01J31/34B01J35/004C01B13/0207C07C315/02C08G83/008C07C317/14
Inventor 史岽瑛杜淼刘春森崔超杰户敏
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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