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Method for preparing copper hydroxide phosphate micro-crystals with different shapes

A copper phosphate, basic technology

Inactive Publication Date: 2013-05-15
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, TiO2 has a wide band gap (3.2 eV), a narrow spectral response range, and the absorption wavelength is mainly concentrated in the ultraviolet region.

Method used

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  • Method for preparing copper hydroxide phosphate micro-crystals with different shapes
  • Method for preparing copper hydroxide phosphate micro-crystals with different shapes
  • Method for preparing copper hydroxide phosphate micro-crystals with different shapes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Slowly add the 0.3 mol / L copper acetate alcohol-water mixed solution dropwise into the 0.3 mol / L diammonium hydrogen phosphate alcohol-water mixed solution. The alcohol-water mixed solution is prepared by ethanol and water in a volume ratio of 1:2, copper acetate / diammonium hydrogen phosphate in a molar ratio of 2:1, and stirred and reacted at a stirring speed of 70 rpm for 20 minutes. The obtained mixed solution was subjected to hydrothermal reaction, the hydrothermal reaction temperature was 180° C., and the hydrothermal reaction time was 24 hours. After the hydrothermal reaction, cool down to room temperature naturally, filter and wash the product obtained by the reaction, put it in an oven, and dry it at 40 °C for 4 hours to obtain a basic copper phosphate microcrystalline material (see figure 1 Middle A and figure 2 ). The prepared basic copper phosphate microcrystalline material was used as a photocatalyst (1.5g / L) to degrade 20mg / L methyl orange solution. Be...

Embodiment 2

[0037]Slowly add the 0.5 mol / L copper acetate alcohol-water mixed solution dropwise to the 0.5 mol / L diammonium hydrogen phosphate alcohol-water mixed solution. The mixed solution of alcohol and water is prepared by ethylene glycol and water according to the volume ratio of 1:1, and the molar ratio of copper acetate / diammonium hydrogen phosphate is 2:1, and the reaction is stirred and reacted at a stirring speed of 70 rpm for 20 minutes. The obtained mixed solution was subjected to hydrothermal reaction, the hydrothermal reaction temperature was 180° C., and the hydrothermal reaction time was 24 hours. After the hydrothermal reaction, cool down to room temperature naturally, filter and wash the product obtained by the reaction, put it in an oven, and dry it at 40 °C for 4 hours to obtain a basic copper phosphate microcrystalline material (see figure 1 Medium B and image 3 ). The prepared basic copper phosphate microcrystalline material was used as a photocatalyst (1.5g / L) ...

Embodiment 3

[0039] Slowly add the 0.5 mol / L copper acetate alcohol-water mixed solution dropwise to the 0.5 mol / L diammonium hydrogen phosphate alcohol-water mixed solution. The alcohol-water mixed solution is prepared by ethylene glycol and water in a volume ratio of 1:2, copper acetate / diammonium hydrogen phosphate in a molar ratio of 2:1, and stirred and reacted at a stirring speed of 70 rpm for 20 minutes. The obtained mixed solution was subjected to hydrothermal reaction, the hydrothermal reaction temperature was 180° C., and the hydrothermal reaction time was 24 hours. After the hydrothermal reaction, cool down to room temperature naturally, filter and wash the product obtained by the reaction, put it in an oven, and dry it at 40 °C for 4 hours to obtain a basic copper phosphate microcrystalline material (see figure 1 Medium C and Figure 4 ). The prepared basic copper phosphate microcrystalline material was used as a photocatalyst (1.5g / L) to degrade 20mg / L methyl orange solutio...

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Abstract

The invention belongs to the field of preparation of inorganic nonmetallic materials and in particular relates to a method for preparing copper hydroxide phosphate micro-crystals with different shapes. The method comprises the following steps of: uniformly dissolving a soluble bivalent copper salt and soluble phosphate in an alcohol and water mixed solution in certain ratio; fully stirring to perform a reaction; performing a hydrothermal reaction on the alcohol and water mixed solution continuously; filtering; cleaning; and drying to obtain an objective product. According to the method for preparing the copper hydroxide phosphate micro-crystals with different shapes, the process is simple and easy to operate, the product purity is high, the preparation cost of the product is low, the obtained product comprises micron-sized micro-crystals with different shapes and can be used as a visible-light response photocatalyst. The prepared copper hydroxide phosphate micro-crystals with different shapes can be used as the visible-light response photocatalyst and has wide application prospect in the field of degradation of dye wastewater and indoor harmful gas, photo-catalytic disinfection and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic non-metallic materials, and in particular relates to a preparation method of basic copper phosphate with various shapes. Background technique [0002] Basic copper phosphate is also named as hydroxyphosphate, or copper-based phosphate, molecular formula: Cu 2 (OH)PO 4 ; Molecular weight: 239.07; English name: dicopper hydroxide phosphate; CAS No: 12158-74-6. Basic copper phosphate is an important inorganic salt product, which is widely used in chemical industry, national defense, electronic industry and other industries. It is often used as a catalyst for environmentally friendly oxidation reactions, and has a wide range of applications in catalytic oxidation reactions in organic synthesis. For example, in the invention patent CN1064647C disclosed by the State Intellectual Property Office of China, Xiao Fengshou and others synthesized basic copper phosphate under hydrothermal c...

Claims

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Application Information

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IPC IPC(8): C01B25/37B01J27/18
Inventor 张杰许家胜
Owner BOHAI UNIV
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