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Method for preparing composite nano Tb/BiOCl material

A composite, nano-technology, applied in the field of photocatalytic materials, achieves the effects of simple preparation method, reduced probability and high catalytic degradation ability

Inactive Publication Date: 2018-05-18
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on the modification of BiOCl with rare earth elements.

Method used

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  • Method for preparing composite nano Tb/BiOCl material
  • Method for preparing composite nano Tb/BiOCl material
  • Method for preparing composite nano Tb/BiOCl material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1) At room temperature, take 17mL (CH 2 Oh) 2 In a beaker, add 0.2g of KCl until a clear and transparent solution A is formed; take 17mL (CH 2 Oh) 2 In the three-necked flask, add 0.9g of Bi(NO 3 ) 3 ·5H 2 O, mechanical stirring until forming a clear and transparent solution B;

[0039] 2) Add solution A dropwise to solution B, continue to stir vigorously for 30 minutes after the dropwise addition, add Tb(NO 3 ) 3 ·6H 2 O, and Tb(NO 3 ) 3 ·6H 2 The amount of O added is Bi(NO 3 ) 3 ·5H 2 1% of the molar amount of O, placed in an ultrasonic cleaner and oscillated at 40kHz for 15min;

[0040] 3) Stop the ultrasonic vibration, transfer the obtained solution into a 40mL stainless steel Teflon-lined reaction kettle, seal it and put it in an oven at 180°C for 9 hours;

[0041] 4) The reaction kettle was naturally cooled to room temperature, the liquid in the reaction kettle was poured out, the solid precipitate was collected, washed with deionized water and etha...

Embodiment 2

[0043] 1) At room temperature, take 17mL (CH 2 Oh) 2 In a beaker, add 0.28g of KCl until a clear and transparent solution A is formed; take 17mL (CH 2 Oh) 2 In the three-necked flask, add 0.97g of Bi(NO 3 ) 3 ·5H 2 O, mechanical stirring until forming a clear and transparent solution B;

[0044] 2) Add solution A dropwise to solution B, continue to stir vigorously for 30 minutes after the dropwise addition, add Tb(NO 3 ) 3 ·6H 2 O, and Tb(NO 3 ) 3 ·6H 2 The amount of O added is Bi(NO 3 ) 3 ·5H 2 1% of the molar amount of O, placed in an ultrasonic cleaner and oscillated at 40kHz for 15min;

[0045] 3) Stop the ultrasonic vibration, transfer the obtained solution into a 40mL stainless steel Teflon-lined reaction kettle, seal it and put it in an oven at 180°C for 9 hours;

[0046] 4) The reaction kettle was naturally cooled to room temperature, the liquid in the reaction kettle was poured out, the solid precipitate was collected, washed with deionized water and et...

Embodiment 3

[0048] 1) At room temperature, take 17mL (CH 2 Oh) 2 In a beaker, add 0.3g of KCl until a clear and transparent solution A is formed; take 17mL (CH 2 Oh) 2 In the three-necked flask, add 1g of Bi(NO 3 ) 3 ·5H 2 O, mechanical stirring until forming a clear and transparent solution B;

[0049] 2) Add solution A dropwise to solution B, continue to stir vigorously for 30 minutes after the dropwise addition, add Tb(NO 3 ) 3 ·6H 2 O, and Tb(NO 3 ) 3 ·6H 2 The amount of O added is Bi(NO 3 ) 3 ·5H 2 1% of the molar amount of O, placed in an ultrasonic cleaner and oscillated at 40kHz for 15min;

[0050] 3) Stop the ultrasonic vibration, transfer the obtained solution into a 40mL stainless steel Teflon-lined reaction kettle, seal it and put it in an oven at 180°C for 9 hours;

[0051] 4) The reaction kettle was naturally cooled to room temperature, the liquid in the reaction kettle was poured out, the solid precipitate was collected, washed with deionized water and ethano...

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Abstract

The invention discloses a method for preparing a composite nano Tb / BiOCl material. The method comprises the following steps: firstly, putting potassium chloride into ethylene glycol so as to form a solution A; putting bismuth nitrate pentahydrate into ethylene glycol so as to form a solution B, and dropping the solution A into the solution B one droplet by one droplet till the ratio of n(Bi) to n(Cl) is 1:1; after dropping is completed, continuously stirring, adding terbium nitrate, and performing ultrasonic oscillation so as to obtain a mixed solution; transferring the mixed solution into a reaction kettle, sealing, and putting into an oven for reactions; after the reactions are completed, naturally cooling the reaction kettle to the room temperature, collecting solid precipitate, washing, and drying, thereby obtaining the composite nano Tb / BiOCl material. The composite nano Tb / BiOCl material prepared by using the method has relatively good catalytic degradation properties upon methylorange under visible light.

Description

technical field [0001] The invention relates to the field of photocatalytic materials, in particular to a method for preparing a composite nanometer Tb / BiOCl material. Background technique [0002] With the development of social industrialization, environmental pollution has gradually intensified. The discharge of production and domestic sewage has increased sharply, and global water pollution has become increasingly serious, threatening the sustainable development of social economy and even human beings. Therefore, it is imminent to develop new pollutant treatment technologies. Semiconductor photocatalytic technology has attracted much attention since its discovery in the 20th century due to its advantages of low energy consumption, wide range of applications, and no secondary pollution to the environment. More and more researchers have devoted themselves to research in this field. [0003] The document "Chinese Patent CN105214694A" discloses a method for preparing BiOCl ...

Claims

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Application Information

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IPC IPC(8): B01J27/08C02F1/30C02F101/30
CPCC02F1/30B01J27/08C02F2305/10C02F2101/308B01J35/39
Inventor 黄凤萍辛萌崔梦丽刘博学周鑫敏
Owner SHAANXI UNIV OF SCI & TECH
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