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Preparation method of covalent light emitting organic semiconductor polymer nanofiber with triazine-like structure and application of covalent light emitting organic semiconductor polymer nanofiber in photocatalytic hydrogen production

A technology of organic semiconductors and nanofibers, which is applied in the field of covalent triazine-like light-emitting organic semiconductor polymer nanofiber materials to achieve excellent fluorescent properties, excellent electron transport capabilities, and stable luminescent properties.

Inactive Publication Date: 2018-11-06
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these polymers have so far been little investigated as photocatalysts for solar fuel production

Method used

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  • Preparation method of covalent light emitting organic semiconductor polymer nanofiber with triazine-like structure and application of covalent light emitting organic semiconductor polymer nanofiber in photocatalytic hydrogen production
  • Preparation method of covalent light emitting organic semiconductor polymer nanofiber with triazine-like structure and application of covalent light emitting organic semiconductor polymer nanofiber in photocatalytic hydrogen production
  • Preparation method of covalent light emitting organic semiconductor polymer nanofiber with triazine-like structure and application of covalent light emitting organic semiconductor polymer nanofiber in photocatalytic hydrogen production

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 25.0 mg 4-[3,5-bis(4-formylphenyl)phenyl]benzaldehyde (0.064 mmol), 15.0 mg 1,4-benzenediacetonitrile (0.096 mmol) to a 5 ml reaction flask Then add 0.334 ml of mesitylene and 1.766 ml of dioxane for ultrasonic vibration. Add 0.2 mL of 4 M sodium hydroxide aqueous solution dropwise to the reaction eggplant bottle. After the addition, the system was frozen with liquid nitrogen, the pressure in the glass bottle was reduced to below 10 mbar under the vacuum adsorption line system, the temperature was raised to room temperature and then filled with argon, and the operation was repeated three times. After the system was raised to room temperature, it was placed in an oven at 90°C to react for 3 days. After cooling down to room temperature, it was washed with water three times, and then washed with dichloromethane, DMF and acetone respectively. The solid was put into a Soxhlet extractor, washed with THF for 2 days, and then dried in a vacuum oven at 110°C for 12 hours t...

Embodiment 2

[0034]Add 6.3 mg 2,4,6-tris(4-formylphenyl)-1,3,5-triazine (0.016 mmol), 18.8 mg 4-[3,5-di (4-formylphenyl)phenyl]benzaldehyde (0.048 mmol), 15.0 mg 1,4-benzenediacetonitrile (0.096 mmol) were added, and then 0.334 ml of mesitylene and 1.766 ml of dioxane were ultrasonically oscillated. Add 0.2 mL of 4 M sodium hydroxide aqueous solution dropwise to the reaction eggplant bottle. After the addition, the system was frozen with liquid nitrogen, the pressure in the glass bottle was reduced to below 10 mbar under the vacuum adsorption line system, the temperature was raised to room temperature and then filled with argon, and the operation was repeated three times. After the system was warmed to room temperature, it was placed in an oven at 90 °C for 3 days. After cooling down to room temperature, it was washed with water three times, and then washed with dichloromethane, DMF and acetone respectively. Put the solid into a Soxhlet extractor, wash it with THF for 2 days, and then dr...

Embodiment 3

[0036] Add 12.6 mg 2,4,6-tris(4-formylphenyl)-1,3,5-triazine (0.032 mmol), 12.5 mg 4-[3,5-di (4-formylphenyl)phenyl]benzaldehyde (0.032 mmol), 15.0 mg 1,4-benzenediacetonitrile (0.096 mmol) were added followed by 0.334 ml mesitylene and 1.766 ml dioxane for ultrasonic vibration. Add 0.2 mL of 4 M sodium hydroxide aqueous solution dropwise to the reaction eggplant bottle. After the addition, the system was frozen with liquid nitrogen, the pressure in the glass bottle was reduced to below 10 mbar under the vacuum adsorption line system, the temperature was raised to room temperature and then filled with argon, and the operation was repeated three times. After the system was warmed to room temperature, it was placed in an oven at 90 °C for 3 days. After cooling down to room temperature, it was washed with water three times, and then washed with dichloromethane, DMF and acetone respectively. Put the solid into a Soxhlet extractor, wash it with THF for 2 days, and then dry it in ...

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Abstract

The invention belongs to the technical field of nanomaterial and particularly relates to a covalent light emitting organic semiconductor polymer nanofiber with a triazine-like structure and a preparation method of the covalent light emitting organic semiconductor polymer nanofiber. Different organic construction units are connected by carbon-carbon bonds. The covalent light emitting organic semiconductor polymer nanofiber with the triazine-like structure is prepared by synthesis of simple solvothermal reaction and dehydration-condensation reaction of aldehyde group and methylene catalyzed by acatalyst adopting Lewis base. The photophysical properties of a derivate and application of the covalent light emitting organic semiconductor polymer nanofiber with the triazine-like structure in water decomposition by photocatalysis are researched by utilizing an ultraviolet absorption spectrum and a fluorescence spectrum. The compound prepared with the preparation method disclosed by the invention is a fluorescent organic semiconductor material with excellent overall properties and can efficiently and stably transmit electrons in photocatalysis water decomposition reaction.

Description

technical field [0001] The invention relates to a highly efficient and stable covalent triazine-like structure luminescent organic semiconductor polymer nanofiber material, in particular, to a class of luminescent organic semiconductor polymer nanofibers containing a triazine-like structure and its use in photocatalytic decomposition of aquatic products. applications of hydrogen. Background technique [0002] As industries grow and the use of fossil fuels leads to increasing environmental concerns, converting solar energy into clean transportable fuels such as hydrogen or methanol is key to achieving sustainable growth. TiO has been reported by Honda and Fujishima since the 1970s 2 Since hydrogen production as a photoanode, research on new photocatalyst materials has touched every element of the periodic table. [0003] Researchers mainly focus on inorganic photocatalysts, especially metal oxide and sulfide semiconductor materials and their modification (such as dopant, so...

Claims

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Application Information

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IPC IPC(8): D01F6/78C09K11/06B01J31/06C01B3/04
CPCC09K11/06D01F6/78C01B3/042B01J31/06C01B2203/0277C09K2211/1466B01J35/58B01J35/39Y02E60/36
Inventor 龙金林刘阳员汝胜丁正新张子重徐超林华香
Owner FUZHOU UNIV
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