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
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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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