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تهمينه جلالي

تهمینه جلالی

مرتبه علمی: دانشیار
نشانی: دانشکده علوم و فناوری نانو و زیستی - گروه فیزیک
تحصیلات: دکترای تخصصی / فیزیک
تلفن: -
دانشکده: دانشکده علوم و فناوری نانو و زیستی

مشخصات پژوهش

عنوان A Techno-economic Analysis of Marine Algae for dye-sensitized solar cells: Process Optimization and Scale-up
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
algae; microwave-assisted extraction; natural dye; economic analysis; RSM; CAPEX; OPEX.
مجله Biomass Conversion and Biorefinery
شناسه DOI 10.1007/s13399-024-06381-9
پژوهشگران ملیحه گلشن (نفر اول) ، شهریار عصفوری (نفر دوم) ، رضا آذین (نفر سوم) ، تهمینه جلالی (نفر چهارم) ، نوید رضا مهیمنی (نفر پنجم)

چکیده

Currently, there is a global interest in the production of marine natural products. Naturally occurring macroalgae can be a potentially viable source of generating various products such as dyes and carbohydrates. Hence, in this study, the potential of extracting natural solvent-based dyes of Sargassum sp., Gracilaria sp., and Enteromorpha sp. was evaluated using the microwave-assisted extraction technique by applying the response surface methodology. In comparison with the conventional solvent extraction method, the microwave-assisted method enhanced the dye extraction by 70.37%, 64.31%, and 20.71% in Sargassum sp., Gracilaria sp., and Enteromorpha sp, respectively. Based on the results, increasing temperature, extraction time, and ethanol/water solvent ratio increased the dye extraction yield significantly for the microwave-assisted technique. Moreover, the effect of pH on the dye extraction was species-specific. In the second step, characterization techniques were used to examine the concentration as well as the optical activity of the extracted dyes by employing the UV-vis spectrophotometer and the circular dichroism, which showed them as promising candidates for sensitizers in dye-sensitized solar cells. Finally, a comprehensive economic and profitability analysis was conducted for both extraction methods. The results showed that the return on investment (ROI) for the conventional and microwave-assisted extraction methods was more than 358% and 268% for a production capacity of 10000 L, which corresponded to the payback period (PBP) of less than 4 and 5 months, respectively. In addition, it was found that increasing the production capacity would significantly decrease the PBP and the total production cost (TPC) of both extraction methods. Estimated income and return cost (EIRC) for both processes also showed that the ROI for the microwave-assisted extraction method was less than the conventional solvent extraction method; however, the efficacy of the microwave-a