ساخت غشای زمینه مخلوط حاوی نانوذرات کادمیم تیتانات و کاربرد آن برای تصفیه پساب رنگی

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه شیمی، دانشکده علوم پایه، دانشگاه شهید مدنی آذربایجان، تبریز، ایران، صندوق پستی:161-83714

چکیده

در این تحقیق، ابتدا نانوذرات کادمیم تیتانات (CdTiO3) به روش سریع و ساده هیدروترمال سنتز شد. سپس، غشاهای اولترافیلتراسیون زمینه مخلوط پلی‌اترسولفون حاوی غلظت­های مختلف CdTiO3 به روش جدایش فازی ساخته شدند. مطالعات ساختاری از طریق آنالیزهای SEM و AFM نشان داد که غشاهای اصلاح شده به دلیل افزودن نانوذرات CdTiO3 در مقایسه با غشای اصلاح نشده، تفاوت‌هایی را در ریخت، تخلخل و خواص سطحی به نمایش می‌گذارند. غشاهای زمینه مخلوط آبدوستی سطح بیشتر، شار آب بالاتر و گرفتگی کمتری را در مقایسه با غشای پلی‌اترسولفون اصلاح نشده نشان دادند. در حضور wt. % CdTiO3 0.1، شار آب به بیشینه l/m2.h 306 رسید در حالی که این عامل در غشای اصلاح نشده  l/m2.h204 بود. نتایج صاف کردن پساب رنگی نشان داد که غشای بهینه قادر به جداسازی بیش از 90 درصد مواد رنگزای زرد راکتیو 105 و آبی راکتیو 21 و 80 درصد ماده رنگزای قرمز راکتیو 195می­باشد. 

کلیدواژه‌ها

عنوان مقاله [English]

Fabrication of a Mixed Matrix Membrane Containing Cadmium Titanate Nanoparticles and its Application for Treatment of Dye Wastewater

نویسندگان [English]

  • Shahla Hosseinpour
  • Mahdie Safarpour
  • Alireza Amani-Ghadim
Department of Chemistry, Faculty of Basic Science, Azarbaijan Shahid Madani University, P.O. Box: 83714-161, Tabriz, Iran
چکیده [English]

In this research, cadmium titanate nanoparticles (CdTiO3) were first synthesized by a fast and simple hydrothermal method. The phase separation method was used to fabricate mixed matrix polyethersulfone ultrafiltration membranes. It contained different concentrations of CdTiO3. Structural studies through SEM and AFM analysis showed that the modified membranes have differences in morphology, porosity, and surface properties compared to the unmodified membrane due to the addition of CdTiO3 nanoparticles. Mixed matrix membranes showed higher surface hydrophilicity, water flux, and lower fouling than unmodified PES membranes. In the presence of 0.1 wt. % CdTiO3, the water flux reached a maximum of 306 L/m2.h when it was 204 L/m2.h in the unmodified membrane. The filtration results of colored wastewater showed that the optimized membrane could separate more than 90 % of Reactive yellow 105 and Reactive blue 21 dyes and 80 % of Reactive red 195 dye.

کلیدواژه‌ها [English]

  • Mixed Matrix Membrane
  • Ultrafiltration
  • Polyethersulfone
  • Cadmium titanate
  • Wastewater treatment

مراجع

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