Hydrothermal one-step synthesis method of cadmium titanate

Abstract

The invention provides a hydrothermal one-step synthesis method of cadmium titanate. The method comprises the following steps: adding titanium dioxide and cadmium salt in water to stir while dropping alkaline solution, stirring to obtain slurry, reacting in a high-pressure reaction kettle, rinsing after the reaction, and drying to obtain cadmium titanate powder. The invention adopts the one-step hydrothermal method to obtain the single CdTiO3 crystalline phase with high crystallinity and hexagonal ilmenite configuration; and the operation process is simple, the reaction temperature is lower, the reaction time is shorter and the mass production can be performed.

Description

A kind of method of hydrothermal one-step synthesis of cadmium titanate technical field The invention belongs to the field of functional material preparation, and more particularly relates to a method for hydrothermally synthesizing cadmium titanate in one step. Background technique There are many kinds of titanate products, with excellent physical, chemical and optical properties, occupying an important position in the field of contemporary functional materials science materials. For example, barium titanate is an excellent dielectric material, bismuth titanate has good piezoelectric properties, aluminum titanate has good thermal shock resistance, cobalt titanate and nickel titanate are widely used as surface coating materials Toner, calcium titanate is a material used to dispose of nuclear waste. However, relatively little research has been done on cadmium titanate, in part because cadmium titanate is difficult to prepare. The commonly used high-temperature calcination...

AI Technical Summary

Problems solved by technology

However, there are relatively few studies on cadmium titanate, partly because it is difficult to prepare cadmium titanate.

The commonly used high-temperature calcination method requires the use of highly toxic CdO; the reported hydrothermal method / sol-gel method not only uses multi-step preparation, which makes the operation cumbersome and increases the production cost, but also often contains impurities of CdO

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