Fractal-like adsorption kinetics of Pb2+ in rocks
العنوان: | Fractal-like adsorption kinetics of Pb2+ in rocks |
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المؤلفون: | Zhengguo Zhou, Xuefu Xian, Longjun Xu, Chenglun Liu |
المصدر: | Chinese Journal of Geochemistry. 27:126-129 |
بيانات النشر: | Springer Science and Business Media LLC, 2008. |
سنة النشر: | 2008 |
مصطلحات موضوعية: | Adsorption, Fractal, Geochemistry and Petrology, law, Chemistry, Electrode, Kinetics, Analytical chemistry, Kinetic energy, Atomic absorption spectroscopy, Grain size, law.invention, Ion |
الوصف: | The adsorption kinetics of Pb2+ in rocks has been studied using ion selective electrodes and atomic absorption spectrophotometer. The results showed that the adsorption process is a fractal-like reaction. The adsorption rate was relatively high before 30 minutes, and then dropped. The saturated adsorption capacity (a) of Pb2+ and kinetic parameters (b, a, D and k) increased with increasing initial concentrations of Pb2+. These parameters (except a) decreased while Na+ was present in the solution. Furthermore, the smaller the rocks were in grain size, the bigger these kinetic parameters would be, though the parameter a was almost constant. |
تدمد: | 1993-0364 1000-9426 |
URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::ac539415906e2cfbd68e1c257de84e72 https://doi.org/10.1007/s11631-008-0126-y |
حقوق: | CLOSED |
رقم الأكسشن: | edsair.doi...........ac539415906e2cfbd68e1c257de84e72 |
قاعدة البيانات: | OpenAIRE |
تدمد: | 19930364 10009426 |
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