کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5400568 | 1505912 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fluorescence quenching of N,N-bis(2,5-di-tert-butylphenyl)-3,4:9,10-perylenebis(dicarboximide) (DBPI) by silver nanoparticles
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fluorescence quenching of N,N-bis(2,5-di-tert-butylphenyl)-3,4:9,10-perylenebis(dicarboximide) (DBPI) by silver nanoparticles Fluorescence quenching of N,N-bis(2,5-di-tert-butylphenyl)-3,4:9,10-perylenebis(dicarboximide) (DBPI) by silver nanoparticles](/preview/png/5400568.png)
چکیده انگلیسی
The interaction of a perylene derivative namely N,N-bis(2,5-di-tert-butylphenyl)-3,4:9,10-perylenebis(dicarboximide) (DBPI) with colloidal silver nanoparticles (AgNPs) was studied in ethanol and ethylene glycol using steady state fluorescence quenching measurements. The Stern-Volmer quenching rate constant (Ksv) was calculated as 4.03Ã109 and 29.14Ã109Â Mâ1 in ethanol and ethylene glycol, respectively. From fluorescence quenching data, static quenching and energy transfer play a major role in the fluorescence quenching of DBPI by AgNPs. The apparent association constant (kapp) was calculated as 1.26Ã108Â Mâ1 in EtOH and 1.83Ã109Â Mâ1 in ethylene glycol. Due to potential AgNPs interaction with DBPI, the average AgNPs size is increased slightly from ~37.1Â nm (As-prepared) to 48.9Â nm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 148, April 2014, Pages 303-306
Journal: Journal of Luminescence - Volume 148, April 2014, Pages 303-306
نویسندگان
Samy A. El-Daly, Mohammed M. Rahman, Kahlid A. Alamry, Abdullah M. Asiri,