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
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
On photoluminescence properties of gallium-exchanged ZSM-5 zeolite
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 356 nm under excitation at 220 nm. This photoluminescence emission is induced by charge-transfer O2−-Ga+ excitation transitions.

187Highlights► Optical properties of Ga-ZSM-5 zeolite were studied. ► Strong UV photoluminescence of reduced Ga-ZSM-5 was observed for the first time. ► This photoluminescence is associated with low-valent Ga+ exchanged cations. ► 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
نویسندگان
,