حذف رنگ‌زای اسیدی به روش الکتروشیمیایی با استفاده از نانوالیاف پلیمری حاوی نانو ذرات اکسیدگرافن احیاشده و کاتالیزور

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشکده علوم پایه، دانشگاه پدافند هوایی خاتم الانبیاء(ص)، تهران، ایران، صندوق‌پستی: 178183513

2 دانشکده علوم پایه، دانشگاه افسری امام علی(ع)، تهران، ایران، کد پستی: 1317893471

چکیده

در این تحقیق به منظور حذف رنگ‌زای اسیدی آبی 92 طی فرایند الکتروفنتون ناهمگن، یک لایه نانوالیافی که به روش الکتروریسی تولید شد، به عنوان کاتد مورد استفاده قرار گرفت. به منظور تولید چنین الکترود نانولیفی، نانوالیاف پلی­آنیلین/نایلون66 (PANI/PA66) با روش الکتروریسی تولید شد. به منظور بهبود رسانایی الکترود نانولیفی و افزایش درصد حذف رنگ‌زا، نانوذرات اکسید­گرافن احیاشده به محلول پلیمری به منظور الکتروریسی اضافه شد. همچنین از نانوذرات آهن مغناطیسی به عنوان کاتالیزور فنتون (PANI/PA66/rGO/Fe3O4) استفاده شد. شرایط بهینه الکتروریسی با روش رویه-پاسخ (RSM) تعیین شد. فرآیند الکتروفنتون برای حذف رنگ‌زا در یک سامانه دو الکترودی با استفاده از نانوالیاف PANI/PA 66 / rGO 6 % / Fe3O4 به عنوان کاتد در مدت زمان 120 دقیقه انجام شد و بیشترین درصد حذف رنگ‌زا به دست آمده 91.78 بود. همچنین، تأثیر برخی عوامل مهم بر بازده حذف رنگ‌زا مانند pH، غلظت اولیه رنگ‌زا و غلظت Fe3O4 مورد بررسی قرار گرفت. 

کلیدواژه‌ها

عنوان مقاله [English]

Removal of Acidic Dye by Electrochemical Method Using Polymeric Nanofiber Containing Reduced Graphene Oxide Nanoparticles and Catalyst

نویسندگان [English]

  • S. A. Hosseini Moradi 1
  • Majid Amirzadeh 2
1 Department of Physics, Khatam al-Anbia Air Defense University (PBUH), P.O. Box: 178183513, Tehran, Iran
2 Department of Physics, Imam Ali University, P.O. Code: 1317893471, Tehran, Iran
چکیده [English]

In this study, to remove the acidic blue 92 during the heterogeneous electro-fenton process, the electrospinning method produced a nanofiber layer and used it as the cathode. Polyaniline/nylon66 nanofiber (PANI/PA66) was produced by the electrospinning method to produce such a nanofibrous electrode. Reduced graphene oxide nanoparticles were added to the polymeric solution to improve the conductivity of the nanofibrous electrode and the dye removal percentage. Magnetic iron nanoparticles were also used as fenton catalysts (PANI/PA66/rGO/Fe3O4). The optimal electrospinning conditions were determined by response surface methodology. Electro fenton process for dye removal was carried out in a two-electrode system using PANI/PA 66 / rGO 6 % / Fe3O4 as a cathode in 120 minutes, and the highest dye removal percentage achieved was 91.78 %. Also, the effect of selecting essential parameters on the dye removal efficiency, such as pH, initial dye concentration, and Fe3O4 dosage, was investigated.

کلیدواژه‌ها [English]

  • Nanofibrous cathode
  • Polyaniline
  • Magnetic nanoparticles
  • Reduced graphene oxide
  • Heterogeneous electrofenton

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