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Method for preparing cerous phosphate nano wire

A technology of nanowires and cerium phosphate, applied in the field of nanomaterials, can solve the problems of water pollution, high requirements on reaction equipment, easy volatilization to the air, etc., and achieves the effects of reducing production costs, being environmentally friendly, and facilitating industrial production.

Inactive Publication Date: 2010-05-12
SHENZHEN UNIV
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

[0004] However, the disadvantages of this hydrothermal synthesis method are: high requirements for reaction equipment, high cost, low output, and difficulty in industrial production; templates are usually organic macromolecular compounds, such as phosphorus-containing surfactants, and some will cause water pollution , some are easy to volatilize into the air and damage the ecological environment

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  • Method for preparing cerous phosphate nano wire
  • Method for preparing cerous phosphate nano wire
  • Method for preparing cerous phosphate nano wire

Examples

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Effect test

Embodiment 1

[0023] The preparation method of the cerium phosphate nanowire provided by the invention comprises the following steps:

[0024] Step 1: Prepare Ce separately 3+ Saline solution and PO 4 3- saline solution.

[0025] The Ce 3+ Saline solution and PO 4 3- The salt solution was respectively prepared with soluble Ce commonly used in this field 3+ Salt and soluble orthophosphoric acid (PO 4 3- ) salt as the solute and water as the solvent. For example, the soluble Ce 3+ The salt can be cerium nitrate, cerium chloride or cerium sulfate, the soluble orthophosphate PO 4 3- The salt can be sodium phosphate, ammonium phosphate or potassium phosphate, etc., such as diammonium phosphate, disodium hydrogen phosphate, ammonium dihydrogen phosphate, sodium dihydrogen phosphate, sodium phosphate, dipotassium hydrogen phosphate or potassium dihydrogen phosphate. In particular, orthophosphoric acid can also be used directly. In order to improve product precision, commercially avail...

Embodiment 2

[0039] Weigh a certain mass of cerium nitrate [Ce(NO 3 ) 3 ·6H 2 O] and disodium phosphate [Na 2 HPO 4 12H 2 [0], be prepared with deionized water to be respectively 25 milliliters of cerium nitrate aqueous solution and disodium hydrogen phosphate aqueous solution that concentration is 0.1 mol / liter. Place the cerium nitrate solution in a beaker or Erlenmeyer flask, stir with a magnetic stirrer at a speed of 150 rpm, and drop the disodium hydrogen phosphate solution into the cerium nitrate solution while stirring. Stirring was continued for 0.5 hours. During this period, adjust the pH value of the mixed solution with a 5% aqueous solution of orthophosphoric acid, and add a certain amount of deionized water to make the pH value of the mixed solution 1 and the total volume to be 80 ml. After the stirring was stopped, the container containing the mixed solution was placed in a constant temperature water bath at 90° C., aged under ambient pressure for 8 hours, cooled to room...

Embodiment 3

[0041] Weigh a certain mass of cerium nitrate [Ce(NO 3 ) 3 ·6H 2 O] and disodium phosphate [Na 2 HPO 4 12H 2 [0], be prepared with deionized water to be respectively 25 milliliters of cerium nitrate aqueous solution and disodium hydrogen phosphate aqueous solution that concentration is 0.1 mol / liter. Place the cerium nitrate solution in a beaker or Erlenmeyer flask, stir with a magnetic stirrer at a speed of 150 rpm, drop the disodium hydrogen phosphate solution into the cerium nitrate solution while stirring, and continue stirring 0.5 hours. During this period, adjust the pH of the mixed solution with a 5% orthophosphoric acid aqueous solution, and add a certain amount of deionized water to make the mixed solution have a pH of 1 and a total volume of 80 ml. After the stirring was stopped, the container containing the mixed solution was placed in a constant temperature water bath at 90°C, aged for 12 hours under ambient pressure, cooled to room temperature, and centrifug...

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Abstract

The invention is suitable for the technical field of nano materials, and provides a method for preparing a cerous phosphate nano wire. The method comprises the following steps of: preparing mixed liquor containing Ce3+ saline solution and PO43- saline solution; adjusting the pH value of the mixed liquor to 0.8 to 1.5; stirring the mixed liquor for 0.3 to 1.5 hours; and ageing the mixed liquor in water bath at the temperature of 90 to 95 DEG C under ambient pressure for more than 2 hours so as to obtain a hexagonal crystal cerous phosphate nano wire. The method for preparing the cerous phosphate nano wire can be carried out by a simple and low-cost device, so the production cost is lowered greatly, and industrial production is convenient to realize; and a template agent is not required to be added in the preparing process, so environmental impact caused by waste liquid is avoided.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a preparation method of cerium phosphate nanowires. Background technique [0002] Rare earth cerium phosphate is widely used in fluorescent materials, conductive materials, ion exchange and catalytic materials. For example, cerium phosphate nanocrystals, nanorods, nanowires, or nanofibers are used as mesoporous materials, luminescent materials, lubricating materials, weak interface coating materials, and microwave dielectric materials, as well as for improving the potential of oxide ceramics. Processability and determination of trace transition elements, etc. [0003] The synthesis methods of cerium phosphate nanowires mainly include direct precipitation method, microemulsion method and hydrothermal synthesis method. Among them, the hydrothermal synthesis method is more commonly used because it can obtain products with finer particle size and more unifor...

Claims

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Application Information

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IPC IPC(8): C01F17/00B82B3/00
Inventor 周晓明辛红曹慧群孙灵娜
Owner SHENZHEN UNIV
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