کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
575694 | 1453060 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simultaneous detection and removal of radioisotopes with modified alginate beads containing an azo-based probe using RGB coordinates
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Simultaneous detection and removal of radioisotopes with modified alginate beads containing an azo-based probe using RGB coordinates Simultaneous detection and removal of radioisotopes with modified alginate beads containing an azo-based probe using RGB coordinates](/preview/png/575694.png)
چکیده انگلیسی
We prepared alginate beads that were modified with an azo-based probe molecule to monitor simultaneously the removal (by alginate) and probing (by the azo-probe molecule) of radioisotopes such as cobalt, strontium, and cesium ions. As an azo-probe molecule, Basic Orange 2 (BO2) was immobilized to the alginate bead. The BO2 in aqueous solution exhibited a slight red shift in absorption with a change in color from orange to dark orange upon addition of cobalt and strontium ions. In contrast, the color of BO2 did not change upon exposure to cesium ions. Thus, the covalently embedded BO2 in alginate beads could adsorb cobalt and strontium ions resulting in recognizable color change of the beads, which was induced by the formation of a complex between BO2 and metal ions. The color changes of the beads in the presence of metal ions were determined quantitatively using RGB color coordinate values. In addition to effectively removing metal ions, the colorimetric coordinate method provides a convenient and simple sensing technique for naked-eye metal ion detection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 300, 30 December 2015, Pages 227-234
Journal: Journal of Hazardous Materials - Volume 300, 30 December 2015, Pages 227-234
نویسندگان
Ara Jo, Geunseok Jang, Ho Namgung, Choongho Kim, Daigeun Kim, Yujun Kim, Jongho Kim, Taek Seung Lee,