Preparation method of silver chloride

Abstract

The invention discloses a preparation method of silver chloride. According to the invention, raw materials which are a silver-containing solution and a chlorine-containing additive solution are well mixed, and a reaction is allowed; the product obtained after the reaction is subjected to centrifugation, washing and drying, such that silver chloride is obtained. The chlorine-containing additive comprises chlorophenol or chlorine-containing quaternary ammonium salt. According to the invention, chlorophenol or chlorine-containing quaternary ammonium salt is adopted as a chlorine source for silver chloride synthesis. Cl<-> released after the reaction can be adopted as a chlorine source of silver chloride. Also, organic groups can be adsorbed on the surfaces of silver chloride, and assist in preventing particle agglomeration with steric hindrance. Therefore, the use of other dispersing agents can be avoided, and raw material application can be reduced. Also, through changing the doses of the silver-containing solution and the chlorine-containing additive, specific adsorption of the chlorine-containing additive on different crystal faces of the surfaces of silver chloride particles is realized, and silver chloride with different morphology can be obtained. Also, through changing the reaction time, silver chloride particle growth time can be changed, such that the purpose of controlling particle size is met.

Description

technical field [0001] The invention relates to the field of material chemistry, in particular to a method for preparing silver chloride with controllable morphology and particle size. Background technique [0002] Environmental pollution and energy shortage have become important issues restricting the development of human society. The semiconductor photocatalysis technology that has emerged in recent years can use sunlight to degrade organic pollutants, and can also photolyze water to produce oxygen and hydrogen, which provides a possible way to solve these two problems. At present, efficient and stable photocatalytic materials are mainly semiconductor materials with wide bandgap, which can only use the ultraviolet part of sunlight, and the energy utilization rate is low. Research in recent years has found that the application of silver chloride in the field of photocatalysis has broad prospects. It can use visible light to degrade organic pollutants, sterilize, self-clean...

AI Technical Summary

Problems solved by technology

Ionic liquids are liquids composed entirely of ions at room temperature, which are expensive and therefore lead to higher production costs for silver chloride

At the same time, the above-mentioned methods can only prepare silver chloride with one morphology, and the preparation of silver chloride with different shapes and particle sizes cannot be realized by changing the reaction conditions, so that the catalytic activity of silver chloride cannot be regulated. great limitations

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