期刊論文
| 學年 | 102 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2014-02-01 |
| 作品名稱 | Electrophoresis of pH-Regulated Particles in the Presence of Multiple Ionic Species |
| 作品名稱（其他語言） | |
| 著者 | Hsu, Chien; Lee, Duu-Jong; Hsu, Jyh-Ping; Wang, Nan; Tseng, Shiojenn |
| 單位 | 淡江大學數學學系 |
| 出版者 | Hoboken: Jossey Bass, Ed. & Pub. |
| 著錄名稱、卷期、頁數 | AIChE Journal 60(2), pp.451-458 |
| 摘要 | An electrophoresis model taking account of the pH-regulated nature of particles and the presence of multiple ionic species is proposed for arbitrary surface potential and double-layer thickness. It successfully simulated the electrophoretic behavior of Fe3O4 nanoparticles in an aqueous NaCl solution with pH adjusted by HCl and NaOH. The estimated zeta potential is compared with those from the conventional models, Smoluchowski's, Hückel's, and Henry's formulas. Due to the violation of the assumption of low and constant surface potential, these formulas yielded appreciable deviations (e.g., 23–30 mV at pH 9). With the surface charge density measured by titration and the zeta potential by electrophoresis, the true surface potential is estimated through a triple-layer model. The estimated true potential is typically 1.5–10 times larger than the zeta potential, implying that using the latter in relevant calculations (e.g., stability and critical coagulation concentration) might yield appreciable deviation. |
| 關鍵字 | electrophoresis;pH-regulated particle;multiple ionic species;triple-layer model |
| 語言 | en |
| ISSN | 1547-5905 |
| 期刊性質 | 國外 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | Hsu, Jyh-Ping |
| 審稿制度 | 是 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | 電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/97853 ) |