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Tetra-(4-pyridyl) zinc porphyrin self-assembly nanocrystallization method

A pyridyl, zinc porphyrin technology, applied in the fields of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of complex follow-up work, environmental pollution, complicated operation, etc.

Active Publication Date: 2017-05-17
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of these methods are complicated to operate, have complicated follow-up processing work, long reaction time, high cost, and will cause certain pollution to the environment.
In the current surfactant-assisted self-assembly methods reported in the literature, chloroform, N,N-dimethylformamide, etc. are used as solvents for metalloporphyrins. These methods have long reaction times and low reproducibility, and porphyrins with nanoparticle sizes can be obtained. It takes a long time

Method used

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  • Tetra-(4-pyridyl) zinc porphyrin self-assembly nanocrystallization method
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  • Tetra-(4-pyridyl) zinc porphyrin self-assembly nanocrystallization method

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Experimental program
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Embodiment 1

[0027] Embodiment 1: Four-(4-pyridyl) zinc porphyrin and 5mmol / L hexadecyltrimethylammonium bromide nanometerization, described method schematic diagram is as image 3 ,Proceed as follows:

[0028] (1) Four-(4-pyridyl) zinc porphyrin tetrahydrofuran mother liquor preparation and the reaction substrate concentration used

[0029] Place an appropriate amount of tetrakis-(4-pyridyl)zinc porphyrin in a 15mL EP tube, add tetrahydrofuran to make the volume to 10mL, and ultrasonically sonicate for 1 hour to completely dissolve the tetrakis-(4-pyridyl)zinc porphyrin, and prepare A tetrahydrofuran solution of tetrakis-(4-pyridyl)zinc porphyrin was obtained. The concentration of four-(4-pyridyl) zinc porphyrin tetrahydrofuran solution is calculated by Lambert-Beer's law by measuring the ultraviolet absorbance value at its 422nm place, and the molar absorptivity is 2.49×10 5 m -1 cm -1 . Thereby, calculate the concentration of four-(4-pyridyl) zinc porphyrin tetrahydrofuran mother l...

Embodiment 2

[0032] Embodiment 2: four-(4-pyridyl) zinc porphyrin and 2.5mmol / L hexadecyltrimethylammonium bromide nanometerization, the schematic diagram of the method is as follows image 3 ,Proceed as follows:

[0033] (1) The preparation of four-(4-pyridyl) zinc porphyrin tetrahydrofuran solution and the reactant concentration used adopt the method of step (1) in Example 1 to prepare four-(4-pyridyl) zinc porphyrin tetrahydrofuran solution And take the same reactant concentration, ie 3.42×10 -5 mol / L.

[0034] (2) Four-(4-pyridyl) zinc porphyrin and 2.5mmol / L hexadecyltrimethylammonium bromide nanometerization

[0035] Place 0.0092g of cetyltrimethylammonium bromide in a 15mL EP tube, add ultrapure water to make the volume to 10mL, and use an ultrasonic machine to sonicate for 5 minutes to completely dissolve the cetyltrimethylammonium bromide. Just prepare the 2.5mmol / L cetyltrimethylammonium bromide aqueous solution.

[0036] Pour the prepared 10mL cetyltrimethylammonium bromide aq...

Embodiment 3

[0037] Embodiment 3: Four-(4-pyridyl) zinc porphyrin and 0.5mmol / L hexadecyltrimethylammonium bromide nanometerization, the schematic diagram of the method is as follows image 3 ,Proceed as follows:

[0038] (1) Preparation of four-(4-pyridyl) zinc porphyrin tetrahydrofuran solution

[0039] Adopt the method preparation four-(4-pyridyl) zinc porphyrin THF solution among the embodiment 1 step (1) and take same reactant concentration, i.e. 3.42 * 10 -5 mol / L.

[0040] (2) Four-(4-pyridyl) zinc porphyrin and 0.5mmol / L hexadecyltrimethylammonium bromide nanometerization

[0041] Place 0.0018g of cetyltrimethylammonium bromide in a 15mL EP tube, add ultrapure water to make the volume to 10mL, and use an ultrasonic machine to sonicate for 5 minutes to completely dissolve the cetyltrimethylammonium bromide. Just prepare the aqueous solution of 0.5mmol / L cetyltrimethylammonium bromide.

[0042] Pour the prepared 10mL cetyltrimethylammonium bromide aqueous solution into a 150mL ro...

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Abstract

The invention relates to a tetra-(4-pyridyl) zinc porphyrin self-assembly nanocrystallization method and belongs to the field of nano material preparation. The method comprises the following steps: 1, using the tetrahydrofuran solution of tetra-(4- pyridyl) zinc porphyrin as a reaction substrate; 2, choosing a cetyl trimethyl ammonium bromide water solution within an appropriate concentration range as a reactant; 3, directly mixing the two solutions in a normal temperature and normal pressure; 4, using a magnetic stirrer to stir until the solution is clarified and obtaining a tetra-(4-pyridyl) zinc porphyrin nanosphere or nanosphere and nanorod composite of different grain diameters and morphology characteristics. The synthesizing method of the invention has the advantages of being quick, simple and easy to operate, having short reaction time, high controllability, environment friendliness, good stability and good repeatability, and the like.

Description

technical field [0001] The invention relates to a four-(4-pyridyl) zinc porphyrin self-assembly nanometerization method, which belongs to the technical field of porphyrin nanomaterials. Background technique [0002] Due to its unique structure and physical and chemical properties, nanoporphyrins have good application prospects in various interdisciplinary fields. At present, there are two ways to obtain nano-porphyrin: first, make porphyrin into nanoparticles, that is, through porphyrin self-assembly; second, combine porphyrin with nanoparticles. Among them, the second method is more complicated to operate, has a long reaction time and high cost, so the method of porphyrin self-assembly has always been one of the fields of very keen research. [0003] Self-assembly is ubiquitous in nature, it can lead to ordered structures, and it can occur in both natural and synthetic systems. It is considered as an efficient "bottom-up" method for the synthesis of organic nanomaterials....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/22B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C07D487/22
Inventor 付海燕胡鸥杨天鸣郭晓明范尧佘远斌
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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