Supercharge Your Innovation With Domain-Expert AI Agents!

Composite material

A composite material and hydrotalcite technology, which is applied in the direction of aluminum compounds, inorganic chemistry, chemical instruments and methods, etc., can solve the problems of difficult control of size distribution, influence on adsorption performance, and agglomeration, so as to avoid large-scale agglomeration and broad application space , Improve the effect of adsorption performance

Inactive Publication Date: 2016-01-13
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] (1) One of the most prominent shortcomings of calcium silicate hydrate as an adsorption material is that it is prone to agglomeration, which seriously affects the adsorption performance
[0014] (2) Calcium silicate hydrate has a thin sheet structure, and it is difficult for magnetic particles to insert into it
However, the fluorescence quenching effect of magnetic particles on fluorescent materials is relatively serious, and the mixing of fluorescent agents and black magnetic particles is not conducive to the detection of fluorescent agents. In addition, the combination of magnetic particles and fluorescent particles is usually difficult to control due to lattice mismatch or size distribution. These all increase the difficulty of preparing magnetic-fluorescent materials

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite material
  • Composite material
  • Composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add 0.15mol / LCaCl according to the calcium-aluminum molar ratio of 5:1 2 and 0.15mol / LAlCl 3 Mix the solutions, adjust the pH value to 10 with 2mol / L NaOH solution at a reaction temperature of 40°C, and then add ethyl orthosilicate dropwise with 0.5mol / L NaOH solution to control the pH value to 11 during the whole dropping process, further stirring for 4-8h, centrifuging the sample, and freeze-drying. CaCl in this embodiment 2 and AlCl 3 Can be replaced by the corresponding nitrate.

[0035] The composite material obtained in this experiment scheme is calcium silicate hydrate grown on the surface of hydrotalcite, in which the hydrotalcite part is composed of calcium and aluminum oxides, and the anions between the plates are chloride ions or nitrate ions.

[0036] Elemental analysis shows that: in the present embodiment, the molar ratio of relevant atoms in the composite material is Ca: Al: Si=4:1:0.65, and according to the calculation by comparison test, 82% of the...

Embodiment 2

[0038] In this example, the hydrochloric acid extraction solution of oil shale ash residue was used as the aluminum source to prepare composite materials. The purpose of this example is to further verify the effect of the doping of various metal ions on the growth of calcium silicate hydrate on the surface of hydrotalcite. On the one hand, it can reduce the preparation cost of composite materials and realize the comprehensive utilization of waste; on the other hand, it can lay the foundation for further adjustment of the composition of hydrotalcite, and the hydrotalcite composed of multiple elements can make composite materials obtain a wider application space. The molar ratio of aluminum, magnesium, ferric iron and calcium ions in the extract is 33:0.78:3.8:1.2, and the molar ratio of divalent ions to trivalent ions is 4.5:1. CaCl 2 solution, the reaction temperature is 20°C, adjust the pH value to 10 with 2mol / L NaOH solution, then add dropwise sodium silicate solution acco...

Embodiment 3

[0042] Add 0.15mol / LCaCl according to the calcium-aluminum molar ratio of 5:1 2 and 0.15mol / LAlCl 3 The solutions were mixed, and 0.05mol / L of Fe was added according to the Ca / Fe molar ratio of 60:1. 3 o 4 magnetic matrix suspension ， The reaction temperature is 40°C, and the pH value is adjusted to 10 with 2mol / L NaOH solution. Then, under stirring conditions, add ethyl orthosilicate dropwise according to the ratio of calcium to silicon molar ratio of 5:1, and use 0.5mol / L NaOH solution controls the pH value to be 11 during the whole dropping process, and further stirs for 4-8h, and then magnetically separates the samples and freezes them to dry. CaCl in this embodiment 2 and AlCl 3 Can be replaced by the corresponding nitrate.

[0043] The composite material obtained in this experimental program is to grow calcium silicate hydrate on the surface of hydrotalcite, in which the hydrotalcite part is composed of calcium aluminum oxide layer, and the hydrotalcite layer is do...

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 relates to a composite material, and belongs to the research field of composite materials obtained via growing of tobermorite on the surface of hydrotalcite. The composite material is obtained via growing of tobermorite on the surface of hydrotalcite; a hydrotalcite part is a plate layer composed of a calcium aluminum oxide, the plate layer is doped with Fe3O4 particles, and plate layer interlayer negative ions are chloride ions or nitrate ions; tobermorite contains Eu(OH)3 which can be replaced by Tb(OH)3; after calcining, the composite material is conversed into a hydrotalcite oxide and calcium silicate, and calcium silicate is doped with europium oxide or terbium oxide fluorescent granules. The composite material possesses excellent adsorption and slow release effects on both negative and positive ions, and magnetic properties and fluorescence properties.

Description

technical field [0001] The invention relates to composite materials, in particular to the research field of growing hydrated calcium silicate composite materials on the surface of hydrotalcite. Background technique [0002] Calcium silicate hydrate is another important heavy metal adsorption and drug release material, which has very good uranium adsorption and solidification ability under alkaline conditions. According to reports (Radiochim.Acta92(2004)645): water The adsorption distribution ratio of calcium silicate to uranium is between 30000-150000L / kg. [0003] The special structure of hydrotalcites (LDHs) endows them with diverse physical and chemical properties, making them show broad potential in the fields of catalysis, intercalation, drug release, electrorheological materials, flame retardancy, sewage treatment, functional luminescent materials, and semiconductors. Application prospects. [0004] The two materials have corresponding complementarities in terms of s...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/00
Inventor 张宏森丁慧贤宋志伟徐超白云启常亮薛丽梅周惠玉刘鹏
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com