Preparation method of chrysotile nanotube in direction arrangement

Abstract

The invention discloses a preparation method of chrysotile nanotubes in direction arrangement, comprising the following steps: 1) placing NaOH solution in a hydrothermal reaction kettle; 2) preparing water solution doped with magnetic ions, adding the water solution in the hydrothermal reaction kettle; 3) separately weighting active MgO and nano-SiO2 powder according to a molar ratio of 3 to 2, adding the active MgO and nano-SiO2 powder in the hydrothermal reaction kettle in turn, then adding distilled water in the reaction system, adjusting the pH value of the reaction system to 11-13.8; 4) sealing the hydrothermal reaction kettle and placing the kettle in a magnetic field; meanwhile, heating the hydrothermal reaction kettle and keeping temperature to perform a reaction for 15-80h, cooling; then opening the cooled hydrothermal reaction kettle, sucking up the upper clear liquid slowly and adding distilled water slowly for washing until the washing water which is sucked up is neutral; then heating and drying the product after opening the kettle to obtain the nanotubes of the invention. The method is simple, and the produced chrysotile nanotubes are pure with a perfect crystal structure so that the method is applicable to the nano-assembly and can be used in the preparation of nano-submicron devices.

Description

technical field

[0001] The invention relates to a preparation method of christolite nanotubes, in particular to a preparation method of directional arranged christolite nanotubes, belonging to the field of inorganic nanometer materials. Background technique

[0002] In the prior art, the research on the preparation of chrysotile nanotubes mainly focuses on the preparation of pure or doped chrysotile nanotubes by hydrothermal method; the disclosed technology includes the preparation of chrysotile by hydrothermal method Tinite single crystals, chrysotile nanotubes prepared by hydrothermal method, and Fe-doped nanotubes prepared by hydrothermal method 3+ The relevant research reports of chrysotile nanotubes; in recent years, there have also been researches on Fe 3+ Occupancy in the as-prepared chrysotile lattice to find the control mechanism of its inner diameter and the growth mechanism of chrysotile nanotubes; assembly of CdS quantum dots in pure chrysotile nanotubes prepar...