Preparation method of europium-thienoyl trifluoroacetone infinite coordination polymer nanoparticle and its film

A technology of thienoyl trifluoroacetone and coordination polymers, which is applied in the field of rare earth coordination polymers, to achieve the effects of uniform and adjustable size, improved stability and luminous performance, and easy operation

Inactive Publication Date: 2021-02-26
JIANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still few reports on the in-depth research and application of rare earth coordination polymer nanoparticles into thin films.

Method used

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  • Preparation method of europium-thienoyl trifluoroacetone infinite coordination polymer nanoparticle and its film
  • Preparation method of europium-thienoyl trifluoroacetone infinite coordination polymer nanoparticle and its film
  • Preparation method of europium-thienoyl trifluoroacetone infinite coordination polymer nanoparticle and its film

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Example 1: Preparation of Europium-based Infinite Coordination Polymer Nanoparticles

[0026] 0.1mmol Eu(NO 3 ) 3 ·6H 2 O was dissolved in 5 mL of deionized water and stirred to obtain a clear and transparent solution. Add 20 mL of DMF solution dissolved with 0.1 mmol thienoyl trifluoroacetone (HTTA), put the mixed solution in a 40 mL polytetrafluoroethylene-lined stainless steel reaction kettle, and stir with a magnetic suspension stirrer for 10 min. Seal it and heat it in a 160°C electric blast drying oven for 6 hours. After the reaction was completed, it was naturally cooled to room temperature, and washed alternately with deionized water and absolute ethanol three times each. The obtained product was dried in a vacuum oven at 80° C. for 8 hours to obtain white europium-thiophenoyltrifluoroacetone infinite coordination polymer nanoparticles.

Embodiment 2

[0027] Example 2: Preparation of rare earth infinite coordination polymer film

[0028] 0.0298 g of the coordination polymer precursor prepared in Example 1 was dissolved in 2.6 mL of DMF solvent, and ultrasonically stirred, so that the sample was evenly dispersed in the DMF solvent. Add 0.4470g polymethyl methacrylate, put it in a stirrer and stir for 12h, set the low speed and high speed of the spin coater to 770r / min and 2220r / min respectively, and set the time to 15s and 20s respectively. Then, the obtained coordination polymer mixed sol was dropped on the sample sheet drop by drop to obtain a spin-coated film, which was air-dried to obtain a sample film at last.

[0029] The products prepared in Examples 1 and 2 were characterized respectively. The XRD pattern is tested and identified on an X-ray diffractometer (Bruker D8ADVANCE, Germany). The SEM image was taken on a scanning electron microscope (S-3400N, 30kV). The transmission electron microscope pictures were obtai...

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Abstract

The invention provides a preparation method of europium-thienoyltrifluoroacetone infinite coordination polymer nanoparticles and a thin film thereof. Take Eu(NO 3 ) 3 ·6H 2 O is the metal ion source, and the organic ligand of thiophenoyl trifluoroacetone is used to successfully prepare spherical nanoparticles of europium-thiophenoyl trifluoroacetone infinite coordination polymer by a simple and template-free mixed solvothermal method; The obtained dry sample was mixed with polymethyl methacrylate, and its thin film was prepared by spin coating with N,N-dimethylamide as solvent. The mixed solvothermal method not only saves energy and is easy to operate, but also realizes precise control of the morphology and particle size of the target product. The uniform diameter of the coordination polymer nanosphere prepared by the method of the invention is about 100nm, the prepared thin film has a smooth surface and good compactness, and the synthesis path is simple and easy to control.

Description

technical field [0001] The invention relates to rare earth coordination polymers, in particular to a preparation method of europium-thienoyl trifluoroacetone infinite coordination polymer nanoparticles and a film thereof. Background technique [0002] Coordination polymers, as a new class of promising hybrid materials, have been extensively studied by researchers. Due to the variability of metal ions and organic ligands, as well as the variability of their building units, coordination polymers have unlimited structures and types and are used in a wide range of fields, including gas absorption, separation, catalysis, chemical sensing, Optoelectronic materials, green energy, bioimaging and drug delivery, etc. In the study of complex materials, it has become an important research direction for researchers to control the morphology and size of coordination polymer materials to control their properties and applications. Due to the unique characteristics of nanoparticles that ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C08J5/18C09K11/06C08L33/12C08L87/00
CPCC08G83/008C08J5/18C08J2333/12C08J2487/00C08L33/12C08L2205/18C09K11/06C09K2211/182C08L87/00
Inventor 钟声亮刘冉帅敏王雷
Owner JIANGXI NORMAL UNIV
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