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Method for synthesizing BiOIO3 nanosheets by solid-phase chemical reaction

A technology of bismuth oxyiodate nanometer and solid-phase chemical reaction, applied in directions such as iodine oxide compounds, can solve problems such as difficulty in large-scale production in high temperature and high pressure environment, and achieve the effects of easy mass production, environmental friendliness and low cost

Active Publication Date: 2019-01-08
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, BiOIO 3 The synthesis method of nanosheets is still mainly hydrothermal method, although the hydrothermal temperature has been reduced by 40~50 o C. The time is shortened to 5~10h, but the high temperature and high pressure environment of this method is still difficult to be used for large-scale production

Method used

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  • Method for synthesizing BiOIO3 nanosheets by solid-phase chemical reaction
  • Method for synthesizing BiOIO3 nanosheets by solid-phase chemical reaction

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Embodiment 1

[0012] Accurately weigh 0.01 mole of solid bismuth nitrate and finely grind it, then add 0.02 mole of solid potassium iodate and grind it quickly, continue grinding for 40 min to ensure the reaction is fully carried out, wash the reaction product with water and ethanol to obtain a precursor, and place the precursor in a muffle In the air atmosphere in the furnace with 2 o C / min rate increased to 300 o C for 2 hours.

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Abstract

The invention aims to provide a method for synthesizing BiOIO3 nanosheets by solid-phase chemical reaction. According to the method, cheap raw materials including solid Bi(NO3)3 and solid KIO3 are taken as reactants, and the BiOIO3 nanosheets are synthesized through a solid phase-solid phase direct chemical reaction at the room temperature by adopting a simple operation process. The method for synthesizing the BiOIO3 nanosheets has the characteristics of low cost, simple and convenient operation and short time, and facilitates mass production, thereby having extremely wide application prospect.

Description

technical field [0001] The invention relates to a method for synthesizing bismuth oxyiodate nanosheets by solid phase chemical reaction. Background technique [0002] Bismuth oxyiodate (BiOIO 3 ) has a typical Aurivillius layered structure, and its structure is composed of (Bi 2 o 2 ) 2+ Cationic layer and (IO 3 ) - The anion layers cross each other, which is a new non-centrosymmetric and polarized material containing two cation lone electrons. Thanks to BiOIO 3 Special layered structure and internal electrostatic field are favorable for photogenerated electron-hole in BiO 6 and IO 3 Separation on the multi-faceted cone, so it has excellent photocatalytic activity. In 2013, Zhang Yihe's research group used this material for the first time in the field of photocatalysis. BiOIO 3 The band gap of the nanosheets is 3.08 eV, which can completely degrade methyl orange under ultraviolet light for 12 min, which is much higher than that of P25(TiO 2 ) and others containing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B11/22
CPCC01B11/22C01P2004/03C01P2002/72
Inventor 曹亚丽谢晶贾殿赠
Owner XINJIANG UNIVERSITY