کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7937155 | 1513089 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photodecolorization of rhodamine under sunlight irradiation driven by chabazite
ترجمه فارسی عنوان
عکاسی رنگ کردن رودامین در تابش نور خورشید به وسیله چابازیت هدایت می شود
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
زئولیت های طبیعی، رودامین، چابازیت، عکاسی جذب، تبادل کاتیونی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Natural zeolite chabazite was studied for the discoloration of rhodamine 6G solutions in dark and under sunlight irradiation. The discoloration of rhodamine aqueous solutions containing chabazite was monitored by UV-vis absorption and photoluminescence spectroscopies and high-performance liquid chromatography measurements on aliquots of the rhodamine solutions. After the discoloration experiments the chabazite powders were collected, dried and analyzed by Fourier-Transform Infrared spectroscopy to obtain additional information about the discoloration process. The results show that chabazite produces the discoloration of the rhodamine solutions in both conditions, dark and under sunlight, with different discoloration mechanisms and rates. In dark, chabazite removes the rhodamine molecules from the solution by adsorption and cation exchange mechanisms. Under sunlight irradiation, additional photo induced mechanisms produce the degradation of the rhodamine molecules and a faster discoloration of the solution. The discoloration process followed a first order kinetics with rate constants of 4.9Â ÃÂ 10â3 and 1.2Â ÃÂ 10â2Â minâ1 in dark and under sunlight conditions, respectively. It is proposed a mechanism for the photodegradation of rhodamine molecules under sunlight irradiation, where the role of chabazite is fundamental.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 129, May 2016, Pages 45-53
Journal: Solar Energy - Volume 129, May 2016, Pages 45-53
نویسندگان
J. RamÃrez-Aparicio, A. Sánchez-MartÃnez, R. RamÃrez-Bon,