Zeolite single-layer film and preparation method thereof
A zeolite and single-layer technology, applied in the field of zeolite single-layer film and its preparation, can solve problems such as the application research gap of L-type zeolite film, and achieve the effects of outstanding substantive characteristics, excellent luminescence performance, and high thermal stability
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Embodiment 1
[0032] In the first step, under the protection of nitrogen, put 5 common quartz plate carriers with a size of 20mm×10mm×1mm into 10mL of N,N-2 In the methylformamide solution, at a temperature of 130°C, after refluxing for 3 hours, take out the ordinary quartz plate carrier, wash it with toluene and ethanol successively, dry it in the air, and set it aside;
[0033] In the second step, 5 mg of L-type zeolite crystals with a crystal length of 0.9-1.0 μm and a diameter of 0.7-0.8 μm are placed in 5 mL of dry toluene, and after ultrasonic dispersion for 15 minutes, the ordinary quartz plate carrier treated in the first step is immersed in The mixture was ultrasonically oscillated for 15 minutes, and the impregnated ordinary quartz plate carrier was taken out, and placed in dry toluene for 5 seconds to remove the zeolite microcrystals physically adsorbed on the surface, and the luminescent c-axis orientation L-type zeolite monolayer film.
[0034] figure 1 It is the scanning ele...
Embodiment 2
[0036] Take 100 mg of L-type zeolite crystals and add to 10 mL of EuCl with a concentration of 0.1 mol / L 3 solution, stirred at 80°C for 24h, centrifuged, discarded the supernatant, and dried the precipitate in a drying oven at 80°C for 3h to obtain doped Eu 3+ L-type zeolite, take the doped Eu 3+ 50 mg of L-type zeolite and 15 mg of organic ligand 2,2'-bipyridine are mixed, after grinding, they are put into a small pear-shaped bottle with a suction head, vacuumed for 1 hour with a rotary vane vacuum pump, and the vacuum degree is 1 Pa, and then Heating at a constant temperature of 70°C for 48 hours, then taking out the product, washing with tetrahydrofuran to remove organic matter not doped into the pores of the zeolite, and drying in a vacuum box with a vacuum degree of 133Pa for 24 hours at room temperature to obtain nanopores containing L-type zeolite Zeo-Eu-Bipy of Luminescent Rare Earth Eu Organic Complexes.
[0037] Replace the L-type zeolite crystal in the second ste...
Embodiment 3
[0039] with TbCl 3 Replace EuCl in embodiment 2 3 , the rest of the process is the same as in Example 2, and the L-type zeolite Zeo-Tb-Bipy containing the luminescent rare earth Tb organic complex in the nanopore is obtained.
[0040] Replace the L-type zeolite crystal in the second step of Example 1 with the L-type zeolite Zeo-Tb-Bipy containing the luminescent rare earth Tb organic complex in the nanopore prepared above, and the rest of the process is the same as that of Example 1, and finally the luminescent c-axis oriented L-type zeolite monolayer film, its excitation and emission spectra are shown in image 3 , in this emission spectrum, the rare earth ion Tb 3+ The characteristic emission peak of green light at 544nm is the highest, that is, the emission color of the film is green.
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