| X射线散射法在无机盐水溶液结构研究中的应用进展 |
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| 引用本文： | 李非,冯明远,任悦,傅婉莹,李世航,许嘉琦,袁俊生.X射线散射法在无机盐水溶液结构研究中的应用进展[J].盐湖研究,2021,29(2):109-122. |
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| 作者姓名： | 李非 冯明远 任悦 傅婉莹 李世航 许嘉琦 袁俊生 |
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| 作者单位： | 河北工业大学化工学院,天津 300130;河北工业大学 教育部海水资源高效利用技术工程研究中心,天津 300130 |
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| 基金项目： | 河北省自然科学基金(B2017202246,E2020202020)；河北省高等学校科学技术研究项目(QN2019048) ；国家重点研究发展计划(2016YFB0600504)；教育部创新团队发展计划(IRT14R14),河北省现代海洋化工技术协同创新中心(冀教科[2013] 37号)；河北工业大学本科教育教学改革研究项目(201903020);河北省重点研发计划项目(19274003D)。 |
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| 摘 要： | X射线散射法是溶液结构研究的重要手段,是研究物质微观结构起源较早的一种方法。从X射线散射图解析出的径向分布函数可以得到具体的结构参数,因此这种方法在溶液结构的研究中得以广泛应用。国内外学者应用X射线散射法对溶液结构进行了大量的研究,确定了不同离子的水合数和水合离子半径,研究了温度、浓度、压力等因素对离子水化结构的影响,发现部分离子存在第二水合层。本文将按照碱金属离子、碱土金属离子、重金属离子、稀土元素离子、卤素离子、含氧酸根离子进行分类,对X射线散射法在溶液结构研究中取得的成果进行总结。在此基础上,分析了应用X射线散射法对水溶液结构研究的现状及其面临的挑战,讨论了该领域的发展前景。
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| 关 键 词： | X射线散射法 溶液结构 溶剂化 接触离子对 |
| 收稿时间： | 2021/2/12 0:00:00 |
| 修稿时间： | 2021/3/15 0:00:00 |
Application of X-ray Scattering in the Study of Inorganic Salt Solution Structure |
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| LI Fei,FENG Ming-yuan,REN Yue,FU Wan-ying,LI Shi-hang,XU Jia-qi,YUAN Jun-sheng.Application of X-ray Scattering in the Study of Inorganic Salt Solution Structure[J].Journal of Salt Lake Research,2021,29(2):109-122. |
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| Authors: | LI Fei FENG Ming-yuan REN Yue FU Wan-ying LI Shi-hang XU Jia-qi YUAN Jun-sheng |
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| Institution: | School of Chemical Engineering and Technology,Hebei University of Technology,School of Chemical Engineering and Technology,Hebei University of Technology,School of Chemical Engineering and Technology,Hebei University of Technology,School of Chemical Engineering and Technology,Hebei University of Technology,School of Chemical Engineering and Technology,Hebei University of Technology,School of Chemical Engineering and Technology,Hebei University of Technology,School of Chemical Engineering and Technology,Hebei University of Technology;China;Engineerning Research Center of Seawater Utilization Technology of Ministry of Education;China |
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| Abstract: | The X-ray scattering technique is a powerful tool for the study of solution structures.It is a method with a long history used to study the solution microstructure.In recent years,with the rapid development of science and technology,X-ray scattering is becoming more and more mature.The specific structural parameters can be obtained from the radial distribution function of X-ray scattering.Therefore,this method has been widely used in the study of solution structure.Many scholars have studied the solvation of various ions in water by X-ray scattering.They have made great achievements,including the determinations of hydration numbers and hydration radius of different ions,as well as the effect of temperature,concentration,pressure and other factors on the ion hydration structures.Besides,the second hydration layer is also involved in some of these studies.In this paper,the research objects are classified according to the alkali metal ions,alkali-earth metal ions,heavy metal ions,rare earth ions,halogen ions,oxyacid ions.And the results obtained by X-ray scattering in the solution structure are summarized.On the basis of a systematic summary of these results,the present situation of the study on the structure of aqueous solution by X-ray sacttering is analyzed,and the prospect of this field is discussed. |
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| Keywords: | X-ray sacttering solution structure solvation contact ion pairs |
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