A preparing method of an eggshell-shaped porous Bi4O5Br2 nanometer material

A bi4o5br2, nanomaterial technology, applied in the direction of bromine oxycompound and other directions, can solve the problem of lack of photocatalyst research, and achieve the effects of simple operation, low ambient temperature and simple equipment

Inactive Publication Date: 2015-08-12
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As far as the literature survey is concerned, the pure-phase semiconductor Bi 4 o 5 Br 2 The research on photocatalysts is still quite scarce. Therefore, the development of a simple a...

Method used

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  • A preparing method of an eggshell-shaped porous Bi4O5Br2 nanometer material
  • A preparing method of an eggshell-shaped porous Bi4O5Br2 nanometer material
  • A preparing method of an eggshell-shaped porous Bi4O5Br2 nanometer material

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Embodiment 1

[0024] Eggshell-shaped porous Bi of the present invention 4 o 5 Br 2 Nanomaterials are prepared by two-step processes of sonochemical technology and heat treatment. The specific process steps are as follows:

[0025] S1 weighs 1.940g bismuth nitrate Bi(NO 3 ) 3 ·5H 2 O was stirred and hydrolyzed into Sol A with 10mL deionized water;

[0026] S2 weighs 0.2001g cetyltrimethylammonium bromide (CTAB) and prepares solution B with 20mL deionized water, and the molar ratio of bismuth nitrate pentahydrate and CTAB is 1:1.375;

[0027] S3 weighs again 0.7612g thiourea (Tu) and prepares solution C with 30mL deionized water;

[0028] S4 While stirring, add solution B to sol A in turn, then add solution C to the mixed reaction solution of A and B, and continue stirring for 10 minutes;

[0029]S5 Transfer the mixed reaction solution to a 100mL glass bottle with a blue cap, place it in an ultrasonic cleaner filled with tap water, the temperature of the ultrasonic bath is 80°C, and th...

Embodiment 2

[0036] Eggshell-shaped porous Bi of the present invention 4 o 5 Br 2 Nanomaterials are prepared by two-step processes of sonochemical technology and heat treatment. The specific process steps are as follows:

[0037] S1 weighs 1.940g bismuth nitrate Bi(NO 3 ) 3 ·5H 2 O was stirred and hydrolyzed into Sol A with 10mL deionized water;

[0038] S2 Weigh 0.1455g cetyltrimethylammonium bromide (CTAB) and prepare solution B with 20mL deionized water, the molar ratio of bismuth nitrate pentahydrate and CTAB is 1:1;

[0039] S3 weighs again 0.7610g thiourea (Tu) and prepares solution C with 30mL deionized water;

[0040] S4 While stirring, add solution B to sol A in turn, then add solution C to the mixed reaction solution of A and B, and continue stirring for 10 minutes;

[0041] S5 Transfer the mixed reaction solution to a 100mL glass bottle with a blue cap, place it in an ultrasonic cleaner filled with tap water, the temperature of the ultrasonic bath is 60°C, and the ultraso...

Embodiment 3

[0045] Eggshell-shaped porous Bi of the present invention 4 o 5 Br 2 Nanomaterials are prepared by two-step processes of sonochemical technology and heat treatment. The specific process steps are as follows:

[0046] S1 weighs 1.942g bismuth nitrate Bi(NO 3 ) 3 ·5H 2 O was stirred and hydrolyzed into Sol A with 10mL deionized water;

[0047] S2 Weigh 0.2910g cetyltrimethylammonium bromide (CTAB) and prepare solution B with 20mL deionized water, the molar ratio of bismuth nitrate pentahydrate and CTAB is 1:2;

[0048] S3 weighs again 0.7612g thiourea (Tu) and prepares solution C with 30mL deionized water;

[0049] S4 While stirring, add solution B to sol A in turn, then add solution C to the mixed reaction solution of A and B, and continue stirring for 10 minutes;

[0050] S5 Transfer the mixed reaction solution to a 100mL glass bottle with a blue cap, place it in an ultrasonic cleaner filled with tap water, the temperature of the ultrasonic bath is 90°C, and the ultraso...

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Abstract

A preparing method of an eggshell-shaped porous Bi4O5Br2 nanometer material is disclosed. The nanometer material is prepared by adoption of an ultrasonic chemical technique and heat treatment which are two process steps. The method includes fully stirring and dissolving a soluble bismuth salt, hexadecyl trimethyl ammonium bromide and deionized water which are adopted as raw materials, preparing a precursor compound by a one-pot ultrasonic chemical reaction, and subjecting the precursor compound to annealing heat treatment to obtain the nanometer material. The nanometer material is of a hollow graded structure, has a shape similar to eggshell, and is free of agglomeration and good in dispersibility. The open-end diameter of the nanometer material is 500-800 nm, and the shell thickness is about 20 nm. The surface of the nanometer material is provided with a large number of pores so that the specific surface area is large. The method is free of use of organic solvents and is clean and friendly in process. The prepared nanometer material can be used in the fields of visible light catalysis, antisepsis, and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic functional materials, in particular, relates to an eggshell-shaped porous Bi 4 o 5 Br 2 Preparation methods of nanomaterials. Background technique [0002] Due to their unique functions and properties, nanomaterials play an important role in many fields such as nano optics, electricity, and magnetism. The morphological structure and particle size of nanomaterials are closely related to their physical and chemical properties. Micro-nano materials with unique morphological structures usually show superior physical and chemical properties, and are increasingly valued by people. Hierarchical hollow micro-nanostructured materials have always been one of the hotspots in nanomaterials science due to their large specific surface area, low density, excellent permeability, and unique photoelectric and surface properties. [0003] Ternary bismuth-based oxyhalides (Bi V o VI x VII , X=...

Claims

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Application Information

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IPC IPC(8): C01B11/20
Inventor 邓崇海高雅丁爱琴董强朱仁发
Owner HEFEI UNIV
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