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Preparation method and application of organic nanostructure for improving molecular assembly

A nanostructure and organic technology, applied in the field of preparation of organic nanostructures, can solve the problems of imperfect crystal form and large aggregate size, and achieve the effects of uniform morphology and size and high-efficiency photocatalytic performance.

Active Publication Date: 2019-06-21
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

In view of the existing methods for preparing organic nanostructures, the self-assembly process is too fast, resulting in excessive aggregate size and imperfect crystal form. The present invention provides a method for preparing organic nanostructures with improved molecular assembly, which can effectively control Morphology, size, perfect crystal form

Method used

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  • Preparation method and application of organic nanostructure for improving molecular assembly
  • Preparation method and application of organic nanostructure for improving molecular assembly
  • Preparation method and application of organic nanostructure for improving molecular assembly

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The organic matter used in this embodiment is H 2 TPyP, provided by Beijing Bailingwei Technology Co., Ltd., has not been further processed before use, and its structural formula is shown in formula 1:

[0037]

[0038] Concrete preparation steps are as follows:

[0039] 1) Configure 0.01mol / L H 2 TPyP, a mixed solution of 0.2mol / L HCl, take 0.5mL of H 2 The TPyP acidic solution was dropped into a 1mL square mold, and frozen into blocks in a refrigerator below 0°C to obtain porphyrin ice cubes.

[0040] 2) Add 0.5mL of H 2 TPyP ice cubes were placed in 9.5mL of a mixed solution of 0.001mol / L SDS and 0.015mol / L NaOH for magnetic stirring, and after 5 minutes of reaction, centrifuged, dried, and collected samples. figure 1 Visible H 2 The size of TPyP nanosheets is 400-500nm.

[0041] Performance Testing:

[0042] 1) Weigh the H collected by the ice dissolution method 2 5mg of TPyP nanosheet powder was added to 50mL, 0.05mM MB solution, and after adsorption-des...

Embodiment 2

[0044] Repeat Example 1, its difference is only that the reaction time in step 2) is 15 minutes, the obtained H 2 TPyP nanosheets see image 3 .

Embodiment 3

[0046] Repeat embodiment 1, its difference is only that the reaction time in step 2) is 25 minutes, the obtained H 2 TPyP nanosheets see Figure 4 .

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Abstract

The invention discloses a preparation method and an application of an organic nanostructure for improving molecular assembly. Porphyrin ice cubes are subjected to an acid-base neutralization reactionand slowly self-assembled under the assisting action of a surfactant, and organic nano-porphyrin (zinc porphyrin) powder with organic nanostructure, controllable morphology and good crystal form is obtained. A self-assembly process of organic molecules is effectively improved with the ice-dissolving slow release method, and the method has an important function in the aspects of reducing structuresize and perfecting crystal form. The method is simple and easy and provides experimental foundation for controllable assembly of the organic material. The application of the obtained organic nanostructure in photocatalytic degradation of organic dyestuff is researched, and a result shows that the structure has efficient photocatalytic activity. The wide application of the method to pollution abatement and energy depletion becomes possible.

Description

technical field [0001] The invention belongs to the field of organic nanometer photocatalysis, and in particular relates to a method for preparing an organic nanostructure that improves molecular assembly and its application. Background technique [0002] With the surge of world population and the process of industrialization in developing countries, the problems of environmental pollution and energy depletion are becoming more and more serious. It is necessary to find a way to replace natural energy supply with renewable resources, while avoiding negative impacts on climate, environment and health. [0003] Compared with inorganic semiconductor materials, organic photocatalysts are cheaper, and the preparation process is simpler and more convenient, and because of their structural diversity and wide solar spectrum absorption, they show excellent performance in visible light catalytic degradation of pollutants (Organic Photocatalysts for the Oxidation of Pollutants and Model...

Claims

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Application Information

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IPC IPC(8): B01J31/22B82Y30/00B82Y40/00C02F1/30C02F101/36C02F101/38
Inventor 王鲁宁陈颖芝江东健巩正奇
Owner UNIV OF SCI & TECH BEIJING
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