عملکرد اکسید منیزیم مزو متخلخل حاصل از فرآیندهای مختلف در تصفیه پساب های آلوده به مواد رنگزای راکتیو

نوع مقاله : مقاله مروری

نویسندگان

1 دانشیار، دانشکده مهندسی شیمی، دانشگاه صنعتی تبریز، تبریز، ایران، صندوقپستی: ۱996 - 5۱335 .

2 استاد، دانشکده مهندسی شیمی، دانشگاه صنعتی ارومیه، ارومیه، ایران، صندوقپستی: 4۱9 - 57۱55 .

10.30509/jscw.2025.167625.1255

چکیده

آلودگی گسترده منابع آب توسط مواد رنگزای راکتیو به یک نگرانی جهانی تبدیل شده است که عمدتاً به دلیل ایجاد سمیت پایدار، تجمع در اکوسیستم‌ و اثرات نامطلوب بر سلامت انسان و محیط زیست است. باید توجه شود که پساب های تخلیه‌شده از صنایع نساجی اغلب به مواد رنگزای راکتیو آلوده هستند، که ناشی از استفاده گسترده از این مواد تجاری در فرآیندهای رنگرزی است. در نتیجه، حذف ترکیبات مذکور از پساب های صنعتی قبل از تخلیه و یا استفاده مجدد، ضروری است. نانوذرات اکسید منیزیم مزومتخلخل (MgO) تمایل بالایی به جذب مواد رنگزا راکتیو در محلول‌های آبی از خود نشان می‌دهند که عمدتاً به دلیل جاذبه الکترواستاتیک ناشی از بار مثبت سطح نانوذرات است. هدف تحقیق حاضر، ارائه یک دیدگاه جامع از فرآیند‌های عملی تولید اکسید منیزیم مزومتخلخل است. برجسته‌ترین فرآیندهای تولید شامل روش‌های هیدروترمال، سل-ژل، هم رسوبی، خود احتراقی و سنتز سبز با استفاده از مواد بیولوژیکی است. با این حال، بسیاری از این روش‌ها با محدودیت‌هایی از نظر قابلیت اجرا در مقیاس صنعتی و اقتصادی مواجه هستند. برای رفع این چالش‌ها، پیشرفت‌های اخیر بر توسعه راهبردهای ساده، سازگار با محیط زیست و مقرون‌به‌صرفه برای تولید اکسید منیزیم مزومتخلخل متمرکز شده‌اند. این تحقیق تولید سریع، درجا و سازگار با محیط زیست نانوذرات اکسید منیزیم مزومتخلخل را با در نظر گرفتن ظرفیت جذب، پارامترهای عملیاتی و سرعت، برای تصفیه مؤثر پساب های آلوده به مواد رنگزای راکتیو را مورد توجه قرار داده است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Performance of mesoporous magnesium oxide derived from various processes in treatment of wastewater contaminated with reactive dyes

نویسندگان [English]

  • Amin Salem 1
  • ُShiva Salem 2
1 Faculty of Chemical Engineering, Tabriz University of Technology, P. O. Box: 51335-1996, Tabriz, Iran.
2 Faculty of Chemical Engineering, Urmia University of Technology, P. O. Box: 57155-419, Urmia, Iran
چکیده [English]

The widespread contamination of water resources by reactive dyes has emerged as a critical environmental concern, primarily due to the persistent toxicity, bioaccumulation in ecosystems, and adverse impacts on human health. The effluents discharged from textile industries are frequently contaminated with reactive dyes, owing to the extensive employment of these commercial materials in dyeing processes. Consequently, there is a critical need to remove reactive dyes from industrial wastewater before the discharge into the environment. Mesoporous magnesium oxide (MgO) nanoparticles exhibit a high affinity for reactive dyes in aqueous solutions, primarily due to electrostatic attraction facilitated by the positively charged surface. The current investigation aims to provide a comprehensive overview of practical methods for fabrication of mesoporous MgO. The most prominent production techniques include hydrothermal, sol-gel, precipitation, autoignition, and green synthesis using biological substrates. The study highlights in-situ, eco-friendly, and rapid production of mesoporous MgO nanoparticles by considering the adsorption capacity, operational parameters, and kinetics for the effective treatment of reactive dye-contaminated wastewater.

کلیدواژه‌ها [English]

  • Reactive dyes
  • Mesoporous magnesium oxide
  • Nanoparticle fabrication processes
  • Adsorption
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