Stannum porphyrin axial covalent functionalized reduced graphene oxide nonlinear optical materials, and preparation method thereof

A nonlinear optical and functional technology, applied in nonlinear optics, organic chemistry methods, optics, etc., can solve problems such as affecting the physical and chemical properties of graphene, destroying the conjugated structure, limiting practical applications, etc., to improve nonlinear optics. Effects of absorption properties and solubility, ease of raw materials, large practical application potential

Inactive Publication Date: 2016-01-20
JIANGSU UNIV
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Problems solved by technology

However, the solubility of graphene in organic solvents is relatively poor, which greatly limits its practical application.
Although the solubility of graphene oxide obtained by the chemical oxidation method has been improved to a certain extent, the chemical oxidation method destroys the important conjugated structure of graphene while introducing oxygen-containing functional groups to improve its solubility, which seriously affects the Physical and chemical properties of graphene

Method used

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  • Stannum porphyrin axial covalent functionalized reduced graphene oxide nonlinear optical materials, and preparation method thereof
  • Stannum porphyrin axial covalent functionalized reduced graphene oxide nonlinear optical materials, and preparation method thereof
  • Stannum porphyrin axial covalent functionalized reduced graphene oxide nonlinear optical materials, and preparation method thereof

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Embodiment 1

[0040] (1) Preparation of reduced graphene oxide (RGO) nano-hybrid photosensitive functional material RGO-SnTPP1 axially covalently functionalized with organic transition metal tin porphyrin (SnTPP1):

[0041] Ultrasonic disperse the pre-prepared RGO (40mg) in 30mL DMF solution for 0.5h, then add 160mg p-hydroxybenzaldehyde to the dispersion system; add sarcosine (800mg) in four times, once every 24h, and react at 145°C 6 days. After the reaction, the reaction solution was cooled to room temperature, and 100 mL of deionized water was added to it, and then the reaction solution was filtered with a 0.45 μm nylon membrane, and then washed with deionized water, methanol and ethanol respectively, and the obtained solid was ultrasonicated in DMF. After dispersing for 2 hours, centrifuge. The supernatant was taken and then evaporated to obtain the 4-hydroxybenzaldehyde-RGO functionalized material, which was vacuum-dried at room temperature for 24 h.

[0042] RGO-SnTPP1 was prepared...

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Abstract

The invention belongs to the field of military industry strong laser protective material, and more specifically discloses organic transition metal stannum porphyrin axial functionalized reduced graphene oxide nano hybrid light-sensitive functional materials with excellent nonlinear absorption performance, and a preparation method of the organic-inorganic covalent functionalized nano materials. Development of the novel porphyrin covalent graphene nonlinear absorption materials with excellent solubility is used for solving problems that graphene is poor in solubility and dispersion stability, and conventional strong laser protective materials are limited. According to the preparation method, organic transition metal stannum porphyrin is connected with the surface of reduced graphene oxide via covalent axial bonds via 1,3-dipolar cycloaddition and free radical addition instead of simple physical mixing of two materials with different optical functions; solubility, dispersion stability, and nonlinear absorption performance of graphene are improved via synergistic effects of organic transition metal stannum porphyrin with reduced graphene oxide; nonlinear optical performance and solubility of the obtained materials are improved greatly; and application prospect is promising.

Description

technical field [0001] The invention belongs to the field of organic-inorganic covalent nano-hybrid functional materials and military strong laser protection materials, in particular to reduced graphene oxide nano-hybridized axially covalently functionalized organic transition metal tin porphyrin with enhanced nonlinear optical absorption performance Photosensitive functional materials. Background technique [0002] Since the invention of strong light sources based on laser principles in 1960, strong laser technology has been widely used in the military field as an important means of modern high-tech warfare; Light-sensitive optics, especially the protection of the human eye, have attracted great attention. However, currently there are very few nonlinear optical functional materials that can be practically applied. Therefore, the research and development and creation of photosensitive functional materials with strong nonlinear optical properties is one of the research hotsp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/22G02F1/361
CPCC07D487/22C07B2200/13G02F1/3619
Inventor 张弛王爱健宋京宝虞王钱军龙凌亮
Owner JIANGSU UNIV
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