An eggshell-shaped porous bi 4 o 5 br 2 Preparation methods of nanomaterials

A nanomaterial, bi4o5br2 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, easy availability of raw materials and high product yield.
CN104828781BInactive Publication Date: 2017-07-21HEFEI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI UNIV
Publication Date
2017-07-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an eggshell-shaped porous Bi 4 o 5 Br 2 Preparation methods of nanomaterials. The present invention adopts sonochemical technology and heat treatment two-step process to prepare eggshell-shaped porous Bi 4 o 5 Br 2 nanomaterials. First, soluble bismuth salt, cetyltrimethylammonium bromide and deionized water are used as raw materials, and the precursor compound is prepared by "one pot" ultrasonic chemical reaction after fully stirring and dissolving; then the precursor compound is annealed Heat treatment, thus producing eggshell-like porous Bi 4 o 5 Br 2 nanomaterials. Eggshell-shaped porous Bi of the present invention 4 o 5 Br 2 Nanomaterials have a hollow hierarchical structure, similar to eggshells, without agglomeration, and good dispersion. The diameter of the open end is between 500 and 800nm, and the thickness of the shell is about 20nm. There are a large number of pores on the surface, and the specific surface area is large. The invention does not use an organic solvent, and the process is clean and friendly; the prepared nanometer material can be used in the fields of visible light catalysis, antibacterial and the like.
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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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