Dimethyltin dichloride functionalized erbium-embedded tellurium tungstate material containing polyacid mixture construction block, as well as preparation method and application thereof

A technology of tungstate telluride and dimethyl tin, which is applied in the preparation of polyoxometalate materials and the field of fluorescent materials, can solve the problems of not getting crystals, not seeing them, and poor reactivity, etc., and achieves convenient and easy operation Effect

Active Publication Date: 2018-10-23
HENAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research on the luminescence and upconversion luminescence of rare earth substituted tellurungstate materials is very rare, so it is necessary to design rare earth substituted tellurungstate materials and realize fluorescence detection, but there is no research on the upconversion luminesce

Method used

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  • Dimethyltin dichloride functionalized erbium-embedded tellurium tungstate material containing polyacid mixture construction block, as well as preparation method and application thereof
  • Dimethyltin dichloride functionalized erbium-embedded tellurium tungstate material containing polyacid mixture construction block, as well as preparation method and application thereof
  • Dimethyltin dichloride functionalized erbium-embedded tellurium tungstate material containing polyacid mixture construction block, as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A dimethyltin functionalized and containing {B-α-TeW 7 O 28} and {W 5 O 18}The mixed building block erbium-embedded telluride tungstate material is obtained by one-step self-assembly using simple raw materials. The preparation method specifically includes the following steps:

[0033] Under stirring conditions, the Na 2 WO 4 2H 2 O (3.500 g, 10.612 mmol), K 2 TeO 3 (0.200 g, 0.7839mmol), Sn(CH 3 ) 2 Cl 2 (0.220 g, 1.001 mmol) and dimethylamine hydrochloride (2.000 g, 24.445 mmol) were added to 30 mL of distilled water, and then 6 mol∙L –1 HCl to adjust the pH of the reaction system to 6.50, keep stirring for about 10min to dissolve completely, then add Er(NO 3 ) 3 ·6H 2 O (0.500 g, 1.143 mmol), and with 0.5 mol∙L –1 The pH of the reaction system was adjusted to 6.50 again with NaOH, and after stirring for about 30 min, impurities were filtered out. The filtrate was left to volatilize at room temperature, and after about three weeks, it precipitated to o...

Embodiment 2

[0036] A dimethyltin functionalized and containing {B-α-TeW 7 O 28} and {W 5 O 18}Mixed building block erbium-embedded telluride tungstate material, which is obtained by using a simple raw material one-step self-assembly method, and its preparation method specifically includes the following steps:

[0037] Under stirring conditions, the Na 2 WO 4 2H 2 O (5.500 g, 16.676 mmol), K 2 TeO 3 (0.200 g, 0.7839mmol), Sn(CH 3 ) 2 Cl 2 (0.220 g, 1.001 mmol) and dimethylamine hydrochloride (2.000 g, 24.445 mmol) were added to 30 mL of distilled water, and then 6 mol∙L –1 HCl to adjust the pH of the reaction system to 6.50, keep stirring for about 10 min to dissolve completely, then add Er(NO 3 ) 3 ·6H 2 O (0.500 g, 1.143 mmol), and with 0.5 mol∙L –1 The pH of the reaction system was adjusted to 6.50 again with NaOH, and after stirring for about 30 min, impurities were filtered out. The filtrate was left to volatilize at room temperature, and after about three weeks, it p...

Embodiment 3

[0039] A dimethyltin functionalized and containing {B-α-TeW 7 O 28} and {W 5 O 18}Mixed building block erbium-embedded telluride tungstate material, which is obtained by using a simple raw material one-step self-assembly method, and its preparation method specifically includes the following steps:

[0040] Under stirring conditions, the Na 2 WO 4 2H 2 O (3.500 g, 10.612 mmol), K 2 TeO 3 (0.200 g, 0.7839mmol), Sn(CH 3 ) 2 Cl 2 (0.220 g, 1.001 mmol) and dimethylamine hydrochloride (2.000 g, 24.445 mmol) were added to 30 mL of distilled water, and then 6 mol∙L –1 HCl to adjust the pH of the reaction system to 6.50, keep stirring for about 10 min to dissolve completely, then add Er(NO 3 ) 3 ·6H 2 O (1.670 g, 3.810 mmol), and with 0.5 mol∙L –1 The pH of the reaction system was adjusted to 6.50 again with NaOH, and after stirring for about 30 min, impurities were filtered out. The filtrate was left to volatilize at room temperature, and after about three weeks, it p...

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Abstract

The invention relates to a dimethyltin dichloride functionalized erbium-embedded tellurium tungstate material containing a polyacid mixture construction block. The material has the chemical formula as[H2N(CH3)2]8H6[Er2(OH)(B-alpha-TeW7O28)Sn2(CH3)4(W5O18)]2.18H2O, belongs to a monoclinic system, a space group is P2/c, and the cell parameters comprise: a is equal to 17.923 (3) angstrom, b is equalto 17.882 (3) angstrom, c is equal to 29.463 (4) angstrom, alpha is equal to 90.00 degrees, beta is equal to 122.22 degrees, gamma is equal to 90.00 degrees, V is equal to 7989 (2) angstrom <3>, Z isequal to 2, R1 is equal to 0.0812, and wR2 is equal to 0.1635. The dimethyltin dichloride functionalized erbium-embedded tellurium tungstate material containing {B-alpha-TeW7028} and {W5018} mixtureconstruction block is synthesized by adopting a one-step assembling strategy, and is obtained by reacting simple raw materials such as Na2WO4.2H2O, Sn(CH3)2Cl2, Er(NO3)3.6H2O, dimethylamine hydrochloride and K2TeO3 under the condition of a water solution. The photoluminescence properties of the material in a visible region and a near-infrared region are researched, the tellurium tungstate materials 1-Er/ Yb co-doped Er/Yb with different proportions are prepared, the photoluminescence properties of the materials in the visible region and the near-infrared region are researched, and an up-conversion luminescence phenomenon of the ellurium tungstate material co-doped Er/Yb being equal to 0.06:0.94 is firstly observed.

Description

technical field [0001] The invention belongs to the technical field of preparation of polyoxometalate materials, in particular to a dimethyl tin functionalized and containing {B-α-TeW 7 o 28} and {W 5 o 18}The preparation method of mixed building block erbium intercalated telluride tungstate material and its application in the field of fluorescent materials. Background technique [0002] In recent years, with the rapid development of science and technology, scientists have studied the application of fluorescence mainly in fluorescent probes, molecular sensors, detection of substances, light-emitting devices, rare earth doped light-emitting materials and metal-organic framework light-emitting materials. Many, the design and preparation of fluorescent materials with excellent performance have attracted great attention (see Y. L. Zhang, X.H. Liu, Y. B. Lang, et al. J. Mater. Chem. C 2015, 3 , 2045–2053). As we all know, polyoxometalates (abbreviated as polyacids) are for...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07F19/00
CPCC07B2200/13C07F11/005C07F19/00C09K11/06C09K2211/183C09K2211/188
Inventor 赵俊伟陈利娟刘敬琳金梦添
Owner HENAN UNIVERSITY
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