Arsenic vanadyl carboxyl polyacid ionic liquid and its preparation method and application

An ionic liquid, arsenic vanadium cluster technology, applied in the field of arsenic vanadyl cluster polyacid ionic liquid and its preparation, can solve problems such as being in blank, achieve good light absorption performance, good solubility, high photocatalytic activity and selectivity Effect

Active Publication Date: 2020-12-22
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to the literature survey, it is found that the current research on arsenic vanadyl carboxyl polyacid ionic liquids is still blank

Method used

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  • Arsenic vanadyl carboxyl polyacid ionic liquid and its preparation method and application
  • Arsenic vanadyl carboxyl polyacid ionic liquid and its preparation method and application
  • Arsenic vanadyl carboxyl polyacid ionic liquid and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] [C 2 MIm] 4 [HAs 8 V 12 o 40 (Cl)] synthesis

[0039] Take by weighing 0.63g sodium metavanadate, 0.65g sodium arsenite, 1.049g hydrazine hydrochloride and 1.911g [C 2 MIm]Br, sodium metavanadate and sodium arsenite were dissolved in 10ml distilled water respectively to form a 0.5mol / L sodium metavanadate solution and a 0.5mol / L sodium arsenite solution, and the above sodium metavanadate After mixing the solution and sodium arsenite solution, stir for 30 minutes, add hydrazine hydrochloride, stir for 30 minutes, precipitate and filter to obtain a clear liquid, and add [C 2 MIm]Br, reacted at room temperature for 3 hours, filtered, and washed with distilled water for 3 times to obtain the target product in powder form with a yield of 56%.

[0040] Tested by elemental analyzer, the chemical formula of the compound is C 24 h 45 N 8 o 40 As 8 V 12Cl, the elemental analysis results are: theoretical value C, 12.36; H, 1.94; N, 4.81; measured value C, 11.79; H, 2.0...

Embodiment 2

[0042] [C 3 MIm] 4 [HAs 8 V 12 o 40 (Cl)] synthesis

[0043] The specific synthetic method of this compound is identical with embodiment 1, and the difference is only that [C 2 MIm]Br replaced with [C 3 MIm]Br, and [C 3 The reaction molar ratio of MIm]Br and [C 2 MIm]Br is the same, and the powdery target product is obtained with a yield of 53%.

[0044] Tested by elemental analyzer, the chemical formula of the compound is C 28 h 53 N 8 o 40 As 8 V 12 Cl, the elemental analysis results are: theoretical value: C, 14.08; H, 2.24; N, 4.69; measured value: C, 13.90; H, 2.41; N, 4.76.

Embodiment 3

[0046] [C 5 MIm] 4 [HAs 8 V 12 o 40 (Cl)] synthesis

[0047] The specific synthetic method of this compound is identical with embodiment 1, and the difference is only that [C 2 MIm]Br replaced with [C 5 MIm]Br, and [C 5 The reaction molar ratio of MIm]Br and [C 2 MIm]Br is the same, and the powdery target product obtained has a yield of 60%.

[0048] Tested by elemental analyzer, the chemical formula of the compound is C 36 h 69 N 8 o 40 As 8 V 12 Cl, elemental analysis (%) results are: theoretical value: C, 17.30; H, 2.78; N, 4.48; measured value C, 17.07; H, 2.93; N, 4.68.

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Abstract

The invention provides an arsenic vanadium oxygen cluster-based polyacid ionic liquid, belonging to the technical field of ionic liquids. The arsenic vanadium oxygen cluster-based polyacid ionic liquid has a chemical formula of [CnMIm]4[HAs8V12O40(Cl)], wherein n is 2, 3, 5, 6 or 7. The invention also provides a concrete preparation method for the polyacid ionic liquid. The polyacid ionic liquid is simple to prepare and has good dissolvability and high photocatalytic performance and selectivity.

Description

technical field [0001] The invention belongs to the technical field of ionic liquids, and in particular relates to an arsenic vanadyl carboxyl polyacid ionic liquid and a preparation method and application thereof. Background technique [0002] Exploring the synthesis methods of polymetallic oxygen clusters, or optimizing the existing methods to obtain compounds with novel structures or improved properties is the goal that scientists are constantly pursuing. At the beginning of the 19th century, ionic liquids entered the field of vision of scientists due to their unique solubility, operational safety, and environmental friendliness. In the synthesis of new polyacids, ionic liquids can be used as both solvents and components of products. , play the role of synthetic templates, etc. These characteristics undoubtedly provide more opportunities for polyacid chemists to synthesize new polyacid compounds. [0003] Because ionic liquids can change the reaction pathway, so as to be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/02
CPCB01J31/0284B01J31/0298B01J35/004
Inventor 柏党东宾师书魁李海燕范艳花冯瑞郭展
Owner HENAN UNIVERSITY
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