کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5211673 | 1382964 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis, characterization and analytical application of zirconium (IV) antimonoarsenate as a potentiometric sensor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A new inorganic ion exchanger, zirconium (IV) antimonoarsenate has been synthesized at different pH values. An amorphous sample prepared at pH 1 having an ion-exchange capacity of 0.40 meq/g was selected for further studies. The material is characterized using various analytical techniques, like XRD, IR, TGA and SEM, in addition to the ion-exchange capacity and distribution coefficient (Kd) studies. Further the exchanger has been used as an electro-active material for the determination of Cerium (III) ions with epoxy resin, PVC and polystyrene as binding materials. A membrane having a composition: ZrSbAs (50%) and polystyrene (50%) gives the best performance. It works well over a wide Ce (III) ion-concentration range of 5Â ÃÂ 10â5-1Â ÃÂ 10â1Â M with a super-Nernstian slope of 52.0Â mV/decade. It has a fast response time of 10Â s and has an average lifetime of four months. The proposed sensor shows a good selectivity for cerium (III) ions with respect to alkali, alkaline earth, some transition and rare earth metal ions that are normally present along with cerium in its ores. The electrode has also been used as an indicator electrode in potentiometric titrations of Ce (III) ions against oxalic acid.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 66, Issue 10, October 2006, Pages 1174-1181
Journal: Reactive and Functional Polymers - Volume 66, Issue 10, October 2006, Pages 1174-1181
نویسندگان
Susheel K. Mittal, Harish K. Sharma, S.K. Ashok Kumar,