کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10547933 | 965401 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption of anions to zirconium(IV) and titanium(IV) chemically immobilized on gel-phase
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Adsorption of anions to zirconium(IV) and titanium(IV) chemically immobilized on gel-phase Adsorption of anions to zirconium(IV) and titanium(IV) chemically immobilized on gel-phase](/preview/png/10547933.png)
چکیده انگلیسی
Adsorption behaviors of 25 anions to zirconium(IV) and titanium(IV) chemically immobilized on a gel-phase were studied by ion chromatography and by batch adsorption experiments. The affinities of Zr(IV) to iminodiacetate as an anchoring group and to anions as a sample are much stronger than those of Ti(IV). On a Zr(IV) column, fourteen anions showed no retention, four anions showed pH-dependent retention in a low pH region, and seven anions were irreversibly adsorbed at pHÂ <Â 7. In the last group, fluoride was adsorbed both by the ligand exchange mechanism and the addition mechanism, while phosphate, arsenate and selenite were only by the ligand exchange mechanism. The structures of the adsorbed species are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1082, Issue 2, 5 August 2005, Pages 208-213
Journal: Journal of Chromatography A - Volume 1082, Issue 2, 5 August 2005, Pages 208-213
نویسندگان
Akio Yuchi, Kiyohiro Matsuo,