کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5369012 1388415 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of chloridazon by natural and ammonium kerolite samples
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Removal of chloridazon by natural and ammonium kerolite samples
چکیده انگلیسی

The adsorption of chloridazon (5-amino-4-chloro-2-phenylpyridazin-3(2H)-one) on natural and ammonium kerolite samples from aqueous solution at 10, 25 and 40 °C has been studied by using batch experiments. The experimental data points were fitted to the Langmuir equation in order to calculate the adsorption capacities (Xm) of the samples; two straight lines were obtained, which indicates that the adsorption process takes place in two different stages. Values for Xm1 (first stage) ranged from 1.1 × 10−2 mol kg−1 for natural kerolite at 40 °C up to 5.1 × 10−2 mol kg−1 for ammonium kerolite at 10 °C and the values for Xm2 (second stage) ranged from 9.1 × 10−2 mol kg−1 for natural kerolite at 40 °C up to 14 × 10−2 mol kg−1 for natural kerolite at 10 °C. The adsorption experiments showed on the one hand, that the ammonium kerolite is more effective than natural kerolite to adsorb chloridazon in the range of temperature studied and on the other hand, that the lower temperature, the more effective the adsorption of chloridazon on the adsorbents studied.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 252, Issue 17, 30 June 2006, Pages 6053-6057
نویسندگان
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