纳米钛酸钡的制备与表征在无机化学实验教学中的应用探索  

Exploration of the Preparation and Characterization of Nano Barium Titanate and Its Application in Inorganic Chemistry Laboratory Teaching

作　　者：谢遵园[1] 杨丽锦 万子霄 刘潇雨 贺雨珊 Zunyuan Xie;Lijin Yang;Zixiao Wan;Xiaoyu Liu;Yushan He(School of Chemistry and Chemical Engineering,Shaanxi Normal University,Xi’an 710119,China)

机构地区：[1]陕西师范大学化学化工学院,西安710119

出　　处：《大学化学》2024年第4期62-69,共8页University Chemistry

基　　金：陕西师范大学2023年校级综合教改项目(23JG06,23JG11)。

摘　　要：针对传统钛酸钡制备实验溶胶凝胶法反应时间过长、反应不易控制、产物杂相多且产品粒径不均匀等问题,通过更换实验溶剂,引入表面活性剂,结合低温热处理,缩减了反应时间,获得了纯度较高且平均粒径小于20 nm的超细钛酸钡纳米颗粒。本改进实验适用于本科一年级的无机化学实验教学。To address the issues of long reaction time,difficult reaction control,multiple impurities,and uneven particle size in the traditional barium titanate preparation experiment using the sol-gel method,an improved experiment was conducted.By replacing the experimental solvent,introducing surfactants,and incorporating low-temperature heat treatment,the reaction time was significantly reduced,resulting in the production of highly pure and ultrafine barium titanate nanoparticles with an average particle size of less than 20 nm.This improved experiment is suitable for undergraduate-level inorganic chemistry laboratory teaching in the first year.

关 键 词：纳米材料 钛酸钡 溶胶凝胶法 实验教学 

分 类 号：G64[文化科学—高等教育学] O6[文化科学—教育学]