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a hierarchical structure cu 2 (oh)po 4 Preparation methods of nanomaterials

A hierarchical structure, nanomaterial technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of easy production of copper by-products, unfavorable product separation, long synthesis cycle, etc., and achieve high product yield and crystallinity. Good, easy-to-use effects

Active Publication Date: 2017-11-21
安徽中航纳米技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But in the above-mentioned hydrothermal synthesis process, some use a large amount of phosphoric acid, on the one hand there is a large amount of medicine waste (according to the stoichiometric ratio, even if the yield reaches 100%, more than 82% of the phosphoric acid is wasted), on the other hand A large amount of phosphoric acid discharge will cause eutrophication of the water system and lead to deterioration of water quality; some preparation processes use organic amines or other additives, which not only pollute the environment, but also easily produce copper by-products under hydrothermal conditions, which is not conducive to product separation; in addition , the traditional hydrothermal synthesis technology has a relatively long synthesis period, the reaction time is between 4 and 72 hours, and the reaction temperature is above 140 degrees, which has high energy consumption and is uneconomical

Method used

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  • a hierarchical structure cu <sub>2</sub> (oh)po <sub>4</sub> Preparation methods of nanomaterials
  • a hierarchical structure cu <sub>2</sub> (oh)po <sub>4</sub> Preparation methods of nanomaterials
  • a hierarchical structure cu <sub>2</sub> (oh)po <sub>4</sub> Preparation methods of nanomaterials

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Embodiment 1

[0024] Hierarchical structure Cu of the present invention 2 (OH)PO 4 Nanomaterials are prepared by simple and efficient "one pot" sonochemical technology, and the specific process steps are as follows:

[0025] (1) Weigh 0.2418g copper nitrate trihydrate Cu(NO 3 ) 2 ·3H 2 O is stirred and hydrolyzed into Sol A with 30mL deionized water;

[0026] (2) Weigh 0.0785g sodium dihydrogen phosphate (NaH 2 PO 4 2H 2 O) be mixed with solution B with 26mL deionized water, the mol ratio of copper nitrate trihydrate and sodium dihydrogen phosphate is 2:1;

[0027] (3) Weigh 0.8g NaOH again, and use a 100mL volumetric flask to set the volume to the mark to make a NaOH solution C with a concentration of 0.2mol / L;

[0028] (4) While stirring, add solution B to solution A, and continue to stir for 10 minutes; then add solution C dropwise to the mixed reaction solution of A and B, and add 0.2mol / L NaOH solution C to 4.0mL . The total volume of the reaction solution was 60 mL.

[0029...

Embodiment 2

[0035] Hierarchical structure Cu of the present invention 2 (OH)PO 4 Nanomaterials are prepared by simple and efficient "one pot" sonochemical technology, and the specific process steps are as follows:

[0036] (1) Weigh 0.2415g copper nitrate trihydrate Cu(NO 3 ) 2 ·3H 2 O was stirred and hydrolyzed into sol A with 30mL deionized water;

[0037] (2) Weigh 0.0780g sodium dihydrogen phosphate (NaH 2 PO 4 2H 2 O) be mixed with solution B with 24mL deionized water, the mol ratio of copper nitrate trihydrate and sodium dihydrogen phosphate is 2:1;

[0038] (3) While stirring, add solution B to solution A, and continue stirring for 10 minutes; then add dropwise 0.2 mol / L NaOH solution C prepared in Example 1 to make 6.0 mL. The total volume of the reaction solution was 60 mL.

[0039] (4) Transfer the reaction mixture to a 100mL blue cap bottle, place it in an ultrasonic cleaner filled with tap water, set the temperature of the ultrasonic bath to 90°C, and the ultrasonic i...

Embodiment 3

[0041] Hierarchical structure Cu of the present invention 2 (OH)PO 4 Nanomaterials are prepared by simple and efficient "one pot" sonochemical technology, and the specific process steps are as follows:

[0042] (1) Weigh 0.2414g copper nitrate trihydrate Cu(NO 3 ) 2 ·3H 2 O was stirred and hydrolyzed into sol A with 30mL deionized water;

[0043] (2) Weigh 0.0782g sodium dihydrogen phosphate (NaH 2 PO 4 2H 2 O) be mixed with solution B with 26mL deionized water, the mol ratio of copper nitrate trihydrate and sodium dihydrogen phosphate is 2:1;

[0044] (3) Under stirring, add solution B to solution A, and continue to stir for 10 minutes; then add dropwise 0.2mol / L NaOH solution C prepared in Example 1 to be 4.0mL. The total volume of the reaction solution was 60 mL.

[0045] (4) Transfer the reaction mixture to a 100mL blue-capped bottle, place it in an ultrasonic cleaner filled with tap water, set the temperature of the ultrasonic bath to 60°C, and the ultrasonic irr...

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Abstract

The invention discloses a hierarchical structure Cu 2 (OH)PO 4 The preparation method of nanometer material, the present invention adopts green and simple sonochemical technology to prepare the Cu of hierarchical structure 2 (OH)PO 4 Nanomaterials, using soluble copper nitrate trihydrate, sodium dihydrogen phosphate and deionized water as raw materials, after fully stirring and dissolving, adjusting the pH value of the reaction solution with sodium hydroxide solution, and then producing graded by "one pot" ultrasonic chemical reaction Structure Cu 2 (OH)PO 4 nanomaterials. The invention does not use phosphoric acid and organic solvents, and the process is clean and friendly; the raw materials are easy to obtain, the cost is low, and it is suitable for industrialization. The prepared nanomaterials can be used to catalyze the hydroxylation of alcohols and phenols and the epoxidation of styrene, and utilize Visible light photocatalytic degradation of environmental organic pollutants and other fields.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic functional materials, in particular, relates to a hierarchical structure Cu 2 (OH)PO 4 Preparation methods of nanomaterials. Background technique [0002] 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. Hierarchical micro-nanostructure refers to the assembly of low-dimensional nanostructure units (such as zero-dimensional quantum dots, one-dimensional nanorods, wires and two-dimensional nanosheets, ribbons, etc.) The different electrical, magnetic, optical, thermal, and mechanical properties of structural materials provide a material basis for in-depth design and research of new nano-devices, and attract research interests in many disciplines including chemistry, physics, and life sciences....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/37B82Y30/00
Inventor 邓崇海高雅丁爱琴董强
Owner 安徽中航纳米技术发展有限公司
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