Preparation method of hydroxyapatite nanocomposite material

A nanocomposite material, hydroxyapatite technology, applied in chemical instruments and methods, silicon compounds, silicates, etc., can solve problems such as long-term toxicity, human health and ecological environment hazards

Inactive Publication Date: 2018-02-16
WUHAN XINGTIANYU ENVIRONMENTAL ENG
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Heavy metal ions will accumulate in organisms through the food chain, and their toxicity will exist ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The technical solutions of the invention will be clearly and completely described below in conjunction with the embodiments of the invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0017] A preparation method of hydroxyapatite nanocomposite material, is characterized in that, comprises the following steps:

[0018] S1, weigh 0.5g of sodium dodecylsulfonate, dissolve it in ethanol at 50°C to 70°C, and obtain solution A;

[0019] S2, add 11g Ca (N0 3 ) 2 4H 2 0 and 3g(NH 4 )2HP0 4 , stirring to obtain solution B;

[0020] S3, add 20mL of 2.5mol / L sodium hydroxide to solution B, put solution B into the flask and raise the temperature to 83°C and reflux for 16h, deposit at room temperature...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of sewage treatment, in particular to the technical field of a preparation method of a hydroxyapatite nanocomposite material. The removal mechanism of Cd2+, Cu2+, and Zn2+ in hydroxyapatite nanocomposites is firstly the rapid complexation of heavy metal ions on the surface of hydroxyapatite, and then the heavy metal ions diffuse into the particles and exchange with Ca2+ to form a complex containing heavy metal ions. Ionic hydroxyapatite. For Pb2+, in addition to the adsorption of fixed cations, the dissolution of hydroxyapatite and the precipitation of Pb10(PO4)6(OH)2 contributed most of the removal of Pb2+, and heavy metal ions such as Cd2+, Cu2+, Zn2+ were absorbed by hydroxyapatite It is adsorbed by stone nanocomposite material. The performance of this material is stable. The nano-scale hydroxyapatite powder wrapped by zeolite releases slowly, which can maintain long-term effectiveness, and the release of phosphorus is not large, which will not cause eutrophication of water body.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to the technical field of a preparation method of a hydroxyapatite nanocomposite material. Background technique [0002] Zeolite has the properties of adsorption, ion exchange, catalysis, acid resistance and heat resistance, so it is widely used as adsorbent, ion exchanger and catalyst, and can also be used in gas drying, purification and sewage treatment. Zeolites also have "nutritive" value. Adding 5% zeolite powder in the feed can accelerate the growth of poultry and livestock, make them strong and fresh, and have a high egg production rate. [0003] Heavy metals mainly refer to elements with a specific gravity greater than 65, such as lead-copper-zinc mixed solutions and other elements with high biological toxicity. With the acceleration of urbanization and industrialization in my country, more and more industrial wastewater containing heavy metal ions is not discharg...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J20/16C02F1/28C02F101/20
CPCB01J20/165C02F1/281C02F2101/20
Inventor 李群许灯彪
Owner WUHAN XINGTIANYU ENVIRONMENTAL ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap