کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
582767 | 1453168 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Removal of cesium ions from aqueous solution by adsorption onto local Taiwan laterite
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Removal of cesium ions from aqueous solution by adsorption onto local Taiwan laterite Removal of cesium ions from aqueous solution by adsorption onto local Taiwan laterite](/preview/png/582767.png)
چکیده انگلیسی
Utilization of local Taiwan laterite (LTL) to remove aqueous cesium was investigated in this work under the conditions of various contact time, cesium (Cs) loading and temperature. Experimental results show that adsorption is instantaneous. Freundlich and Langmuir simulation results demonstrate that local Taiwan laterite has high affinity and sorption capacity for Cs at low temperatures, which may be attributed to enhanced desorption as temperature increased. Thermodynamic parameters including ÎH, ÎG and ÎS were calculated and it is indicated that Cs adsorption on LTL is an exothermic, spontaneous and physical adsorption reaction. Moreover, the adsorbed Cs is distributed evenly on the LTL surface, which is confirmed by SEM/EDS mapping images. Furthermore, the absence of apparent shifting or broadening of the kaolinite signal in XRD patterns after Cs adsorption is an indication of the non-expanding characteristic of kaolinite structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 160, Issues 2â3, 30 December 2008, Pages 638-642
Journal: Journal of Hazardous Materials - Volume 160, Issues 2â3, 30 December 2008, Pages 638-642
نویسندگان
Tsing-Hai Wang, Ming-Hsu Li, Wen-Chun Yeh, Yuan-Yaw Wei, Shi-Ping Teng,