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Hydroxyl strontium phosphate super-long nanowire as well as preparation method and application thereof

A hydroxyphosphoric acid, nanowire technology, applied in nanotechnology, chemical instruments and methods, phosphorus compounds, etc., can solve problems such as no relevant reports, and achieve the effects of simple process, good flexibility, and high aspect ratio

Pending Publication Date: 2022-03-25
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no related reports on ultra-long strontium hydroxyphosphate nanowires and biomaterials including ultra-long strontium hydroxyphosphate nanowires

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  • Hydroxyl strontium phosphate super-long nanowire as well as preparation method and application thereof
  • Hydroxyl strontium phosphate super-long nanowire as well as preparation method and application thereof

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preparation example Construction

[0023] The invention provides a method for preparing ultra-long strontium hydroxyphosphate nanowires, the preparation steps of which are as follows:

[0024] Under normal temperature stirring, the oleate aqueous solution is added to the strontium salt aqueous solution, and then the phosphate aqueous solution is added under stirring to form a precursor suspension.

[0025] Wherein, the oleate includes but not limited to sodium oleate, potassium oleate and ammonium oleate, and the concentration of the oleate in the precursor suspension can be 0.01-10 mol / L, preferably 0.1-10 mol / L. 3mol / L. The phosphate includes but not limited to sodium phosphate, sodium dihydrogen phosphate, disodium hydrogen phosphate, sodium tripolyphosphate, sodium hexametaphosphate, potassium phosphate, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, potassium tripolyphosphate, hexa Potassium metaphosphate, ammonium phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, a...

Embodiment 1

[0039] At room temperature, 0.533 g of SrCl 2 ·6H 2 O was dissolved in 25 ml of deionized water to form solution A; 2.436 g of sodium oleate was dissolved in 25 ml of deionized water to form solution B; after stirring, solution A was added dropwise to solution B, and after stirring at room temperature for 20 minutes , add 25 ml containing 0.281 g NaH 2 PO 4 2H 2 O aqueous solution to obtain a suspension of the reaction precursor, and then transfer the suspension of the reaction precursor to a 100 ml polytetrafluoroethylene-lined stainless steel reactor, seal it, hydrothermally treat it at 180 ° C for 24 hours, and then cool it naturally to room temperature. The product was centrifuged and washed twice with ethanol and deionized water respectively to obtain figure 1 It can be seen that in most cases, a plurality of strontium hydroxyphosphate ultralong nanowires self-assemble into strontium hydroxyphosphate ultralong nanowire bundles along the length direction; X-ray diffrac...

Embodiment 2

[0041] At room temperature, 1.066 g of SrCl 2 ·6H 2 O was dissolved in 25 ml of deionized water to form solution A; 2.436 g of sodium oleate was dissolved in 25 ml of deionized water to form solution B; after stirring, solution A was added dropwise to solution B, and after stirring at room temperature for 20 minutes , add 25 ml containing 0.281 g NaH 2 PO 4 2H 2 O aqueous solution to obtain a suspension of the reaction precursor, and then transfer the suspension of the reaction precursor to a 100 ml polytetrafluoroethylene-lined stainless steel reactor, seal it, hydrothermally treat it at 180 ° C for 24 hours, and then cool it naturally to room temperature. The product was centrifuged and washed twice with ethanol and deionized water respectively to obtain ultra-long nanowires of strontium hydroxyphosphate.

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Abstract

The invention provides a hydroxyl strontium phosphate super-long nanowire and a preparation method thereof, and the preparation method comprises the following steps: step (1), uniformly stirring and mixing strontium salt as a strontium source, phosphate as a phosphorus source and oleate as a reactant and an emulsifier in a solvent to form a precursor suspension; (2) carrying out hydrothermal treatment on the precursor suspension liquid obtained in the step (1) in a closed container; and (3) separating and washing the product obtained in the step (2) to obtain the hydroxyl strontium phosphate super-long nanowire. The invention also provides application of the hydroxyl strontium phosphate super-long nanowire in the fields of bone defect repair, dental materials, drug carriers, energy and environmental protection. The invention also provides a macro-scale ordered structure material comprising the hydroxyl strontium phosphate super-long nanowire. The hydroxyl strontium phosphate super-long nanowire and the preparation method thereof have the advantages of simple process, low cost and the like, and are expected to be produced on a large scale.

Description

technical field [0001] The invention belongs to the field of nanomaterial preparation, and specifically relates to a strontium hydroxyphosphate superlong nanowire and its preparation method and application, as well as a macroscale ordered structure material including the strontium hydroxyphosphate superlong nanowire and a preparation method thereof. Background technique [0002] Strontium hydroxyphosphate can be used as a biomaterial, which has good biocompatibility, bioactivity, and the ability to promote bone tissue regeneration, and can release strontium ions in a sustained and slow manner, and the released strontium ions can stimulate growth Osteocyte differentiation can also inhibit osteoclasts, accelerate new bone growth and bone defect repair, and has a good application prospect in the treatment of bone defect repair. Among the various morphologies of strontium hydroxyphosphate nanomaterials, ultra-long strontium hydroxyphosphate nanowires have unique structures and p...

Claims

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Application Information

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IPC IPC(8): C01B25/32B82Y40/00A61L27/12A61L27/54
CPCC01B25/325B82Y40/00A61L27/12A61L27/54C01P2004/16C01P2004/03C01P2002/72
Inventor 朱英杰陈昱桥
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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