Macro preparation method of titanium-oxygen cluster compound

A kind of cluster compound, titanium oxide technology, applied in the field of macro-scale preparation of titanium oxide cluster compound

Active Publication Date: 2020-01-31
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides a macro-preparation method of titanyl clusters, which overcomes the problem that the conventional preparation methods of titanyl clusters need to be reacted under airtight and non-pressure conditions
And the post-processing is simple and easy

Method used

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  • Macro preparation method of titanium-oxygen cluster compound
  • Macro preparation method of titanium-oxygen cluster compound
  • Macro preparation method of titanium-oxygen cluster compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Heating and stirring: Titanium isopropoxide (3.0mmol), formic acid (4.0mmol), and propionic acid (73.6mmol) were placed in a 50ml round bottom flask, mixed uniformly at room temperature, refluxed and stirred at 100°C for 8 hours, and taken out , naturally cooled to room temperature, separated the solid phase and rinsed with propionic acid to obtain the target product in the form of colorless strip crystals.

Embodiment 2

[0069] Heating and stirring: Titanium isopropoxide (3.0mmol), formic acid (4.0mmol), propionic acid (60mmol) and octanoic acid (14mmol) were placed in a 50ml round bottom flask, mixed evenly at room temperature, and refluxed and stirred at a temperature of 80°C After 12 hours, it was taken out, naturally cooled to room temperature, the solid phase was separated and washed with propionic acid to obtain the target product in the form of colorless strip crystals.

Embodiment 3

[0071] Heating and stirring: Titanium isopropoxide (3.0mmol), formic acid (26.5mmol), propionic acid (52.0mmol), butyric acid (17.0mmol) were placed in a 50ml round bottom flask, mixed uniformly at room temperature, Reflux and stir for 8 hours, take it out, naturally cool to room temperature, separate the solid phase and wash it with propionic acid to obtain the target product in the colorless strip-like crystal state.

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Abstract

The invention provides a macro preparation method of a titanium-oxygen cluster compound. The method comprises: mixing reaction raw materials for preparing a titanium-oxygen cluster compound, and carrying out a reaction under the conditions of heating stirring, or microwave, or ultrasonic or ball milling to prepare the titanium-oxygen cluster compound, wherein the reaction raw materials comprise atitanium salt, an organic acid A and an organic acid B. According to the invention, the problem that the conventional preparation method of the titanium-oxygen cluster compound needs to perform the reaction under the closed and non-atmospheric pressure conditions is solved; the synthesis process is simple in requirement, the reaction time is greatly shortened, and large-scale production is facilitated; the post-treatment is simple and easy to implement, wherein the crystalline product can be obtained only by simple acid or alcohol washing separation and natural airing; the synthesis process isless in pollution and meets the environment-friendly requirements; and the prepared titanium-oxygen cluster compound has efficient and stable activity in hydrogen production using water photolyzing,and can be used in the fields of water splitting, pollutant degradation or electronic devices and the like.

Description

technical field [0001] The invention belongs to the technical field of crystal material preparation, and in particular relates to a macro-preparation method of titanyl-oxygen clusters. Background technique [0002] Due to its high efficiency, low cost and environmental friendliness, nano-TiO2 is considered to be a potential photocatalyst in the degradation of environmental pollutants and solar energy conversion. However, such materials have disadvantages that cannot be ignored, including non-uniform particle size, unclear structure, and uncertain surface composition. These factors greatly limit the in-depth exploration of this type of photocatalytic materials. As the molecular model compound of nano-titanium dioxide, crystalline titanyl clusters have the characteristics of clear ligand-cluster core connection, adjustable cluster core size, and good solubility. In order to further study their function-oriented structure design, optimize Its application in catalysis offers t...

Claims

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Application Information

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IPC IPC(8): C07F7/28B82Y30/00B82Y40/00C01B3/04
CPCB82Y30/00B82Y40/00C01B3/042C07F7/28Y02E60/36
Inventor 张健张磊高美艳
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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