高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (10): 2214-2220.doi: 10.7503/cjcu20180509

• 物理化学 • 上一篇    下一篇

基于溶解热力学原理对纳米卤化银热力学性质的研究

覃方红1, 邱江源1, 肖碧源1, 米艳1,2(), 黄在银1,2()   

  1. 1. 广西民族大学化学化工学院, 南宁 530006
    2. 广西高校食品安全与药物分析化学重点实验室, 南宁 530006
  • 收稿日期:2018-07-17 出版日期:2018-09-29 发布日期:2018-09-29
  • 作者简介:

    联系人简介: 黄在银, 男, 教授, 主要从事纳米物理化学方面的研究. E-mail: huangzaiyin@163.com;米 艳, 女, 博士, 讲师, 主要从事纳米物理化学方面的研究. E-mail: miyan@gxun.edu.cn

  • 基金资助:
    国家自然科学基金(批准号: 21273050, 21573048, 21873022)和广西研究生教育创新计划项目(批准号: gxun-chxzs2018062)资助.

Investigation into the Thermodynamic Properties of Nano-silver Halides Based on the Principle of Dissolution Thermodynamics

QIN Fanghong1, QIU Jiangyuan1, XIAO Biyuan1, MI Yan1,2,*(), HUANG Zaiyin1,2,*()   

  1. 1. College of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, China
    2. Guangxi Colleges and Universities Key Laboratory of Food Safety and Pharmaceutical Analytical Chemistry, Nanning 530006, China
  • Received:2018-07-17 Online:2018-09-29 Published:2018-09-29
  • Contact: MI Yan,HUANG Zaiyin E-mail:miyan@gxun.edu.cn;huangzaiyin@163.com
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos. 21273050, 21573048, 21873022) and the Innovation Project of Guangxi Graduate Education, China(No. gxun-chxzs2018062).

摘要:

在室温下, 可控制备了系列纳米卤化银(AgX)材料, 并对其组成、 形貌及结构进行了表征. 基于块体卤化银与纳米卤化银热力学性质的本质差异, 结合溶解热力学Debye-Hückel等基本理论公式, 通过与块体材料对比, 导出了纳米卤化银的表面热力学、 偏摩尔表面热力学和规定热力学函数的关系式. 为测定难溶盐类纳米材料的表面热力学和规定热力学函数提供了行之有效的新方法.

关键词: 纳米卤化银, 溶解热力学法, 热力学函数, 温度效应

Abstract:

A series of nano-silver halide(AgX, X=Cl, Br, I) materials was prepared at room temperature. Their composition, morphology and structure were characterized. The surface thermodynamics, partial molar surface thermodynamics and specified thermodynamic functions of nano-silver halide were derived based on the essential difference between bulk-silver halide and nano-silver halide combined with Debye-Hückel formula of dissolution thermodynamics. A new effective and universal method for the determination of surface thermodynamics and thermodynamic function of insoluble salt nanomaterials is provided.

Key words: Nanometer silver halide, Dissolution thermodynamics method, Thermodynamic function, Temperature effect

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