کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7721685 | 1497516 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photochemical synthesis of fluorescent Ag nanoclusters and enhanced fluorescence by ionic liquid
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photochemical synthesis of fluorescent Ag nanoclusters and enhanced fluorescence by ionic liquid Photochemical synthesis of fluorescent Ag nanoclusters and enhanced fluorescence by ionic liquid](/preview/png/7721685.png)
چکیده انگلیسی
Fluorescent silver nanoclusters with a size of about 2Â nm were synthesized within 90Â s by irradiating a mixture of silver precursor and polymethacrylic acid sodium salt solution under Xe lamp. The proposed method was well optimized by a systematical investigation of experimental parameters, such as irradiation time, initial concentration, pH of the solution. The obtained nanoclusters were well dispersed in water and exhibited bright emission upon visible light excitation. This approach can be further extended to use solar light for the large scale synthesis. Strikingly, the emission intensity of as-prepared silver nanoclusters could be enhanced up to â¼60% by the addition of 1-(2â²-hydroxylethyl)-3-methylimidazolium tetrafluoroborate ([HOEtMIm][BF4]) ionic liquid. Meanwhile, these nanoclusters, in between molecules and normal nanoparticles, intensely absorb light around 510Â nm covering the most intense part of solar light, should be a promising visible light sensitizer in solar cell and water splitting applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 29, 30 September 2013, Pages 13055-13061
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 29, 30 September 2013, Pages 13055-13061
نویسندگان
Feng Lu, Shiwei Zhou, Jun-Jie Zhu,