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A kind of hollow tank-shaped multi-level structure bismuth oxysalt bi2wo6 and preparation method thereof

A bismuth oxysalt, pot-shaped technology is applied in the field of bismuth oxysalt Bi2WO6 and its preparation, and achieves the effects of convenient operation, good visible light degradation activity and mild reaction conditions

Active Publication Date: 2015-12-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Hollow pot-like hierarchical structure containing bismuth oxylate Bi 2 WO 6 No report

Method used

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  • A kind of hollow tank-shaped multi-level structure bismuth oxysalt bi2wo6 and preparation method thereof
  • A kind of hollow tank-shaped multi-level structure bismuth oxysalt bi2wo6 and preparation method thereof
  • A kind of hollow tank-shaped multi-level structure bismuth oxysalt bi2wo6 and preparation method thereof

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specific Embodiment approach 1

[0025] Specific embodiment one: a kind of hollow tank-like multi-level structure of this embodiment contains bismuth oxo-salt Bi 2 WO 6 , is an open can-shaped material formed by stacking sheets with a thickness of 10-15nm. The outer diameter of the can body is 6-8μm, and the inner diameter of the can mouth is 1.5-3μm.

specific Embodiment approach 2

[0026] Specific embodiment two: a kind of hollow tank-like multi-level structure of this embodiment contains bismuth oxo-salt Bi 2 WO 6 , is an open can-shaped material formed by stacking 12nm-thick sheets. The outer diameter of the can body is 7 μm, and the inner diameter of the can mouth is 2 μm.

specific Embodiment approach 3

[0027] Specific embodiment three: The hollow tank-shaped multi-level structure containing bismuth oxo-salt Bi described in specific embodiment one 2 WO 6 The preparation method, carry out according to the following steps:

[0028] 1. Weigh Bi(NO 3 ) 3 .5H 2 O, Na 2 WO 4 .2H 2 O and concentrated nitric acid with a molar concentration of 14.5mol / L, where Bi(NO 3 ) 3 .5H 2 O and Na 2 WO 4 .2H 2 The molar ratio of O is 2:1, Bi(NO 3 ) 3 .5H 2 The ratio of the amount of O substance to the volume of concentrated nitric acid with a molar concentration of 14.5mol / L is 1mol: (0.2-0.5mL);

[0029] Two, dilute the concentrated nitric acid distilled water that molar concentration is 14.5mol / L, obtain acid solution, wherein the volume ratio of concentrated nitric acid and distilled water that molar concentration is 14.5mol / L is 1: (20~25); Then step one weighs Bi(NO 3 ) 3 .5H 2 O is added to the acid solution to dissolve, and Bi(NO 3 ) 3 solution; press Na again 2 WO ...

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Abstract

The invention relates to hollow pot-shaped multilevel structure bismuth-contained oxysalt Bi2WO6 and a preparation method of the hollow pot-shaped multilevel structure bismuth-contained oxysalt Bi2WO6. The Bi2WO6 is an open pot-shaped material formed by stacking sheets. The preparation method includes the steps that Bi (NO3) 3.5H2O is added to an acid solution and dissolves, and then a Bi (NO3) 3 solution is obtained; Na2WO4.2H2O is added to water to obtain a Na2WO4 solution; under the condition of continuous stirring, the Na2WO4.2H2O solution is dripped to the Bi (NO3) 3 solution, and then a mixed solution is obtained through stirring; the mixed solution is transferred to a hydrothermal reaction kettle for hydrothermal reaction, and the hollow pot-shaped multilevel structure bismuth-contained oxysalt Bi2WO6 is prepared after washing and drying. The hollow pot-shaped multilevel structure bismuth-contained oxysalt Bi2WO6 can be used for the field of light catalytic degradation.

Description

technical field [0001] The present invention relates to containing bismuth oxo salt Bi 2 WO 6 and its preparation method. Background technique [0002] Today in the 21st century, while we are vigorously developing social productivity and improving living standards, we have also caused serious damage to the environment and even threatened the survival of human beings. Nowadays, water and air, as the most precious resources of human beings, have been paid more and more attention. Especially with the acceleration of the industrial process, a large amount of waste water and waste gas are discharged into the water and air, which contain a large amount of toxic organic compounds that will accumulate in the human body and pose a huge threat to human health. At the same time, in our daily life, a large amount of volatile organic compounds (volatile organic compounds, VOC) are discharged into the environment, which not only causes serious damage to the environment, but also seriou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/31B01J35/02C01G41/00B01J35/00
Inventor 陈刚李春梅孙净雪董红军胡宜栋
Owner HARBIN INST OF TECH