硫酸铜分子结构及热变性的红外光谱  

Infrared spectroscopy study of copper sulphate molecule structure and thermal denaturation

作　　者：卫羽萱 贺璇儿 李佳欣 康怡然 王晓萱 于宏伟[1] Wei Yuxuan;He Xuaner;Li Jiaxin;Kang Yiran;Wang Xiaoxuan;Yu Hongwei(Shijiazhuang University)

机构地区：[1]石家庄学院

出　　处：《上海计量测试》2021年第3期2-5,8,共5页Shanghai Measurement and Testing

基　　金：石家庄学院教学改革研究与实践项目(ZXJG-202019)。

摘　　要：采用中红外(MIR)光谱技术开展了硫酸铜分子结构的研究。试验发现:在303 K的温度条件下,硫酸铜分子的红外吸收模式主要包括:ν_(OH)、δ_(H_(2)O)、ν_(asSO_(4))、ν_(sSO_(4))和δ_(asSO_(4))。采用变温中红外(TD-MIR)光谱,开展了硫酸铜热变性的研究。试验发现:在303~573 K的温度范围内,随着测定温度的升高,硫酸铜分子主要官能团(ν_(OH)、δ_(H_(2)O)、ν_(asSO_(4))、ν_(sSO_(4))和δ_(asSO_(4)))对应的红外吸收频率和强度均有明显的改变。采用MIR光谱及TD-MIR光谱分别开展了硫酸铜的结构及热变性研究,为硫酸铜的应用及改性提供了数据支撑。The copper sulfate molecular structure had been studied by infrared(MIR)spectroscopy.The infrared absorption mode included ν_(OH),δ_(H_(2)O),ν_(asSO_(4)),ν_(sSO_(4)) and δ_(asSO_(4)).Temperature-dependent infrared(TD-MIR)spectroscopy of copper sulfate molecule were researched also.In the temperature range from 303 K to 573 K,the infrared absorption frequency and intensity of copper sulfate molecule main infrared absorption mode(ν_(OH),δ_(H_(2)O),ν_(asSO_(4)) and δ_(asSO_(4)))changed obviously,the crystalline water of of copper sulfate molecules was weathering and the thermal denaturation was discovered also.The structure and thermal denaturation of copper sulfate molecule had been studied by MIR spectroscopy and TD-MIR spectroscopy and had great application value.

关 键 词：硫酸铜 红外光谱 变温红外光谱 结构 热变性 

分 类 号：TQ131.21[化学工程—无机化工] O657.33[理学—分析化学]