جاذب‌های نانوکامپوزیتMOF عامل‌دار آنزیمی برای حذف آلودگی ماده رنگزای مستقیم سبز 6

نوع مقاله : پژوهشی

نویسندگان

1 استادیار، گروه مهندسی عمران، دانشکده فنی مهندسی، دانشگاه صنعتی قم، قم، ایران، کد‌پستی: 3716146611.

2 دانشجوی دکترای تخصصی، دانشکده شیمی، دانشگاه ارومیه، ارومیه، ایران، صندوق‌پستی: 165.

چکیده

هدف از این پژوهش بررسی جداسازی ماده رنگزا، با استفاده از ترکیب نانو ساختار آلی فلزی آنزیم دار حاصل از فرایند لایه نشانی آنزیمی بر روی ترکیب آلی فلزی است. به این منظور 15 آزمایش با روش پاسخ سطحی و با استفاده از طراحی بصورت مرکب مرکزی توسط نرم افزار Expert 7.0.0 Trial طراحی و سه عامل زمان, میزان جاذب و غلظت محلول در سه سطح (1+ ،0 ،1-) انتخاب شد. در هر آزمایش میزان مشخصی از جاذب در محلول دارای رنگ سبز 6 کاتیونی قرار داده شد و میزان حذف رنگ اندازه‌گیری شد. نانوجاذب عامل‌دار‌زیستی دارای تخلخل 30 انگستروم و سطح ویژه2500 گرم/ مترمربع می باشد. خصوصیات فیزیکی نانوذرات آنزیمی تهیه شده با روش‌های دستگاهی بررسی شد. شرایط آزمایش‌ها شامل زمان تماس (60-5 دقیقه)، میزان جاذب (5-1 ‌‌گرم بر لیتر)، غلظت ماده رنگزا سبز (تا 1000 گرم بر لیتر) و pH مختلف بوده است. تصویر میکروسکوپ الکترونی، نانو ساختار بودن جاذب را تأیید نمود. مقدارهای بهینه طراحی آزمایش برای حذف ماده رنگزا، برای نانوجاذب آنزیمی پنج میلی‌‌گرم بر لیتر و زمان تماس 45 دقیقه تعیین شد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Metal Organic Framework Nanocomposite Adsorbents with Enzyme Function to Remove Direct Green 6 Dye Pollution

نویسندگان [English]

  • Reza Alizadeh 1
  • Fahimeh Tahmasebee 2
1 Department of civil engineering, Engineering Faculty, Qom university of technology Qom, P. O. Code: 3716146611, Qom, Iran.
2 Faculty of Chemistry, Urmia University, P. O. Box: 165, Urmia, Iran.
چکیده [English]

This research aims to investigate the separation of dyes by using the combination of enzyme-containing organometallic nanostructure resulting from the enzymatic layering process on the organometallic compound. For this purpose, 15 experiments were designed with the surface response method (RSM) and using the Central Composite design by Design Expert 7.0.0 Trial software and three factors of time, amount of adsorbent and solution concentration at three levels (+1 , 0, -1) was selected. In each test, a specific amount of absorbent was placed in 10 ml of 6-cation green color solution, and the amount of color removal was measured. The bioactive nanoabsorbent has a porosity of 30 Angstroms and a specific surface area of 2500 g/m2. Instrumental methods investigated the physical properties of prepared nanoparticles. The conditions of the tests included contact time (5-60 minutes), amount of absorbent (1-5 g/l), dye concentration (up to 1000 g/l) and different pH. The electron microscope image confirmed the nanostructure of the adsorbent. The maximum dye removal was determined with the amount of enzyme nanoabsorbent at five mg/L and a contact time of 45 minutes.

کلیدواژه‌ها [English]

  • nano composite
  • metal organic framework
  • laccase enzyme agent
  • dye remove
  • adsorbent

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مطالعات در دنیای رنگ
دوره 14، شماره 1
اسفند 1402
صفحه 45-55

فایل ها

سابقه مقاله

  • تاریخ دریافت: 01 آبان 1402
  • تاریخ بازنگری: 26 دی 1402
  • تاریخ پذیرش: 16 بهمن 1402

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