Preparation method of calcium carbonate with layered structure

A layered structure, calcium carbonate technology, applied in the nano field, can solve the problems of non-single crystal structure, long preparation time, cumbersome process, etc., and achieve the effects of uniform crystal form, simple preparation method and shortened time.

Inactive Publication Date: 2018-08-24
FUDAN UNIV
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing research on the preparation of layered calcium carbonate, most of them are regulated by macromolecular polymers (J. Am. Chem. Soc. 2002, 124, 9700-9701), or by natural biological protein filaments (CrystEngComm , 2013, 15, 5179–5188), however, none of these can obtain a regular layered structure, and even if a layered structure is obtained, it is not a good single crystal structure, which limits its further application
In addition, there are also calcium carbonate structures grown in templates, such as in gels, but layered structures cannot be obtained (Adv. Mater.2009, 21, 470–473), or polymer frameworks as templates, which can be obtained Blocky layered structure, but this is an artificial framework that does not conform to natural growth, and the preparation time is long and the process is cumbersome (Science.2016, 354, 107-110)

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
  • Preparation method of calcium carbonate with layered structure
  • Preparation method of calcium carbonate with layered structure
  • Preparation method of calcium carbonate with layered structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, nanowire control has the preparation of layered structure calcium carbonate

[0027] In the desiccator, first put aluminum foil wrapped (NH 4 ) 2 CO 3 Medicine bottle, with two small holes pierced on the aluminum foil; then, put it into a 24-well plate, and add 100 microliters of 0.5mg / mL nanowires, 1.4mL of deionized water and 100 microliters of 200mM CaCl in three consecutive grooves 2 Solution, after mixing, put a circular cover glass with a diameter of 12mm in the solution, cover and seal the entire 24-well slot plate with aluminum foil and make a small hole in each of the three slots, and seal the desiccator. After 24 hours, the coverslips were removed and dried for observation.

Embodiment 2

[0028] Embodiment 2, nanowire control has the preparation of layered structure calcium carbonate

[0029] In the desiccator, first put aluminum foil wrapped (NH 4 ) 2 CO 3 Drug bottle, with two small holes pierced on the aluminum foil; then, put it into a 24-well slot plate, and add 125 microliters of 0.5mg / mL nanowires, 1.4mL of deionized water and 100 microliters of 200mM CaCl in three consecutive slots 2 Solution, after mixing, put a circular cover glass with a diameter of 12mm in the solution, cover and seal the entire 24-well slot plate with aluminum foil and make a small hole in each of the three slots, and seal the desiccator. After 24 hours, the coverslips were removed and dried for observation.

Embodiment 3

[0030] Embodiment 3, nanowire control has the preparation of layered structure calcium carbonate

[0031] In the desiccator, first put aluminum foil wrapped (NH 4 ) 2 CO 3 Drug bottle, with two small holes pierced on the aluminum foil; then, put it into a 24-well slot plate, add 50 microliters of 0.5mg / mL nanowires, 1.4mL of deionized water and 125 microliters of 200mM CaCl in three consecutive slots 2 Solution, after mixing, put a circular cover glass with a diameter of 12mm in the solution, cover and seal the entire 24-well slot plate with aluminum foil and make a small hole in each of the three slots, and seal the desiccator. After 24 hours, the coverslips were removed and dried for observation.

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 nano materials, and particularly relates to a preparation method of calcium carbonate with a layered structure. The preparation method comprises the following steps: firstly, self-assembling amphiphilic block copolymers in a selective solvent to form flexible polymer nano-wires with core-shell structures; secondly, carrying out hydrophobic core crosslinking on the nano-wires to obtain nano-wires which can stably exist in a solution; and thirdly, crystalizing calcium carbonate in a mixed solution of the flexible polymer nano-wires and calcium chloride at the atmosphere of carbon dioxide to form a layer-by-layer stacked structure. The layered calcium carbonate structure prepared by the method is quite close to a natural shell structure, the crystal form is single and orderly, a preparation process is simple, and an efficient method is provided for artificial preparation of the calcium carbonate.

Description

technical field [0001] The invention belongs to the field of nanotechnology, and in particular relates to a preparation method of calcium carbonate with a layered structure. Background technique [0002] New materials and new shapes have always been hot research topics in science and technology circles, providing directions and methods for solving many major problems. Among them, inorganic materials are an important branch in the field of material research, and have good application prospects in the fields of catalysis, electrochemistry, coatings, and biomedicine. At present, the preparation of inorganic materials by biomineralization has attracted much attention. The natural world is filled with many unique biomineralized materials, such as shells with strong mechanical properties, pearls with beautiful colors, and hard human bones and teeth. The artificial preparation of biomineralized materials is an emerging interdisciplinary subject, which can link chemistry, biology,...

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): C01F11/18
CPCC01F11/18C01P2002/72C01P2004/03
Inventor 陈道勇王伟冲李会亚李嫣然
Owner FUDAN UNIV
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