کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5382356 | 1504944 | 2012 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On photoluminescence properties of gallium-exchanged ZSM-5 zeolite
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Photoluminescence properties of gallium-containing ZSM-5 zeolite were studied. It was found for the first time that reduced Ga-ZSM-5 containing low-valent Ga+ cations exhibits strong UV photoluminescence emission at 356Â nm under excitation at 220Â nm. This photoluminescence emission is induced by charge-transfer O2â-Ga+ excitation transitions.
187Highlights⺠Optical properties of Ga-ZSM-5 zeolite were studied. ⺠Strong UV photoluminescence of reduced Ga-ZSM-5 was observed for the first time. ⺠This photoluminescence is associated with low-valent Ga+ exchanged cations. ⺠The PL intensity of reduced Ga-ZSM-5 is much higher than that of unreduced Ga-ZSM-5.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics Letters - Volume 554, 3 December 2012, Pages 159-162
Journal: Chemical Physics Letters - Volume 554, 3 December 2012, Pages 159-162
نویسندگان
Alexander I. Serykh,