شبیه‌سازی شرایط عملیاتی سنتز سبز نانوذرات نقره با استفاده از عصاره برگ آلوورا و مایکروویو و بررسی خواص آن

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه مهندسی صنایع غذایی، دانشکده مهندسی شیمی، دانشگاه صنعتی سهند، تبریز، ایران

2 گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه مراغه، مراغه، ایران

چکیده

روش سنتز سبز جهت تولید نانوذرات با استفاده از عصاره های گیاهی، روشی کارآمد، سریع و کم هزینه می باشد. جهت سنتز نانوذرات نقره از عصاره آبی گیاه آلوورا، با توجه به توانایی احیاکنندگی و پایدارکنندگی مناسب که توسط آنالیز FTIR وجود مواد مختلفی همچون فلاوونوئیدها و اسیداستیک در آن تائید شد، و حرارت دهی تشعشعی مایکرویوو در توان های مختلف 480، 640 و 800 وات استفاده شد. پس از انجام آنالیز UV-Vis و DLS بروی نمونه نانوذرات نقره سنتز شده نتایج نشان داد که غلظت های 38.58، 61.52 و 91.35  ppmو همچنین میانگین اندازه ذرات 94، 74 و 61 نانومتر برای نانو ذرات نقره سنتز شده در توانهای مختلف بدست آمد. با شبیه سازی شرایط عملیاتی سنتز نانوذرات نقره با نرم افزار دینامیک سیالات محاسباتی (CFD) در توان های مختلف (800-480 وات)، به منظور بهینه سازی زمان، انرژی و دمای اعمال شده جهت سنتز نانوذرات نقره با خواص مطلوب، میانگین دمای K 337، توان مناسب اعمال شده 800 وات و زمان فرآیند 175 ثانیه بدست آمد.

کلیدواژه‌ها


عنوان مقاله [English]

Simulation of Silver Nanoparticles Green Synthesis Using Aloe Vera leaf Extract and Microwave Heating, and Evaluation of their Characteristics

نویسندگان [English]

  • O. Ahmadi 1
  • M. J. Seifi 2
  • H. Jafarizadeh-Malmiri 1
1 Sahand, University of Technology
2 Maragheh University
چکیده [English]

Green synthesis of metal nanoparticles using plant extracts is an efficient, fast and low cost method. In order to synthesis of silver nanoparticles (AgNPs) using aqueous leaf extract of Aloe vera, due to its reducing and stabilizing agents, such as flavonoids and acetic acid which those were detected by FTIR analysis, and microwave heating, at different powers of 480, 640 and 800 W were used. Synthesized AgNPs were characterized by UV-Vis and DLS analysis, and results indicated that AgNPs with concentrations of 38.58, 61.52 and 91.35 ppm, as well as mean particle sizes of 94, 74 and 61 nm, were obtained, at different powers of microwave, respectively. After simulating the synthesis conditions of the AgNPs using COMSOL Multiphysics in different powers (800-480 W), in order to optimize the time, energy and temperature applied for synthesizing AgNPs, results indicated that AgNPs with desirable properties were fabricated at average temperature, power and processing time of 337 ºK, 800 W and 175 s, respectively.

کلیدواژه‌ها [English]

  • Aloe Vera Leaf Extract
  • Green Synthesis
  • Microwave Heating
  • Synthesis Conditions
  • Silver Nanoparticles
  • Simulation

 

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