Distribution of colloidal particles in a spherical cavity
學年 94
學期 1
出版(發表)日期 2005-09-29
作品名稱 Distribution of colloidal particles in a spherical cavity
作品名稱(其他語言)
著者 Hsu, Jyh-ping; Jiang, J. M.; 曾琇瑱; Tseng, Shio-jenn; Liu, B. T.
單位 淡江大學數學學系
出版者 American Chemical Society (ACS)
著錄名稱、卷期、頁數 Journal of Physical Chemistry B 109(38), pp.18048-18054
摘要 The spatial distribution of colloidal particles in a confined space is frequently a key issue to many phenomena of practical significance. This problem is investigated by considering the distribution of colloidal particles in a spherical cavity under the conditions of relatively large cavities, low cavity and colloidal particles potentials, and low monovalent electrolyte and colloidal concentrations. The analytical expression for the particle−cavity pair interaction energy is derived under various surface conditions. The results obtained are used to evaluate the direct correlation functions in the hypernetted chain approximation employed for the resolution of an Ornstein−Zernike equation. For a fixed particle number concentration at the center of a cavity, we make the following conclusions:  (i) the spatial distribution of particles increases in an oscillatory manner with the distance away from the cavity surface, (ii) increasing the particle−cavity pair interaction energy has the effect of reducing the free space of particles inside a cavity, and (iii) the greater the pair interaction energy between two particles, the higher the average concentration of particles.
關鍵字
語言 en
ISSN 1520-6106
期刊性質 國內
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國別 TWN
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出版型式 ,電子版
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