Preparation method of iron-doped hollow calcium carbonate microtubule

Abstract

The invention discloses a preparation method of an iron-doped hollow calcium carbonate microtubule. The microtubule disclosed by the invention has good toughness and surface strength; by doping iron, the microtubule is endowed with good magnetism, the functionality of the microtubule is enhanced, and the service range of the microtubule is widened. The microtubule disclosed by the invention is light in weight, convenient to proces and mount, and excellent in integrated properties.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a method for preparing iron-doped hollow calcium carbonate microtubes. Background technique [0002] As an ordered structural structure, hollow nanostructures bring many properties that cannot be obtained by general nanomaterials, and have many new uses. Compared with the preparation of general nanoparticles, the preparation of hollow nanomaterials is more difficult, and it is difficult to obtain directly by general synthesis techniques. The currently reported methods for preparing hollow nanomaterials mainly include self-assembly method, template method, hydrothermal synthesis method, sol-gel method, nozzle reactor method, emulsion interfacial polymerization method, and aging method. Among them, the template method is currently the most intuitive and effective simple preparation method, which is widely used and generally includes four steps, ①preparation of the template ②su...

AI Technical Summary

Problems solved by technology

Efficient and complete deposition of shell materials on the template surface is the most challenging, as core and shell materials often do not match in terms of lattice or surface properties

This needs to be overcome by surface modification and functionalization of the template to obtain specific functional groups or properties, such as charging the surface. In some cases, surface functionalization can be carried out while preparing the template, such as by One-step copolymerization to prepare functional polymer templates with functional groups on the surface, which can simplify the preparation process of hollow nanomaterials; application number 201510817816.8, a preparation method of calcium carbonate microspheres, first using cationic polymers and surfactants Form complex ions with calcium ions in calcium chloride solution, then add sodium carbonate solution into the reactor, and proceed under the conditions of ultrasonic and mechanical stirring. After the reaction is completed, centrifuge to remove impurities in the reaction solution, and leave the precipitate and washed with deionized water, filtered, and dried to obtain calcium carbonate microspheres loaded with cationic polymers, but their functions are single, their surface strength is low, and their toughness is poor.