بررسی کارآیی نانوذرات نیکل اکسید در حذف اسید قرمز 97 به عنوان یک آلاینده محیط زیست از محیط‌های آبی
محورهای موضوعی : راه حل های موثر و قابل توسعه برای کنترل و حذف آلودگی های محیطی
1 - دانش آموخته دکتری شیمی کاربردی، دانشکده شیمی، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
کلید واژه: اسید قرمز 97, جذب سطحی, نانوذرات NiO, پارامترهای عملیاتی,
چکیده مقاله :
در این کار تحقیقی حذف اسید قرمز 97 (AR97) به عنوان یک آلاینده مدل از صنایع نساجی با استفاده از نانوذرات NiO از محیط‌های آبی مورد مطالعه قرار گرفته است. در ابتدا اندازه و خلوص نانوذرات NiO بهترتیب با استفاده از تکنیکهای TEM و XRD مشخص گردید. در ادامه کارایی نانوذرات NiO برای جذب سطحی و حذف AR97 مورد مطالعه قرار گرفت. نتایج نشان داد که نانوذرات NiO جاذب موثری برای حذف AR97 از محیط‌های آبی میباشند. بررسی تاثیر پارامترهای عملیاتی نظیر دما، pH، مقدار جاذب و غلظت اولیه آلاینده (AR97) در کارایی جذب سطحی نانوذرات NiO مورد بررسی قرار گرفت. نتایج بهینه بدست آمده از بررسی این پارامترها (دما، pH، مقدار جاذب و غلظت اولیه AR97) به ترتیب عبارتند از C° 25، 2، g L-14 و mg L-1 10 میباشند.
This study investigates the removal of C.I. Acid Red 97 (AR97) as a model pollutant from textile industries using NiO nanoparticles in aqueous environments. The size and purity of NiO nanoparticles were initially determined using TEM and XRD techniques, respectively. The adsorption and removal efficiency of NiO nanoparticles for AR97 was then evaluated. The results indicated that NiO nanoparticles serve as effective adsorbent for AR97 removal. The effects of key operational parameters, including temperature, pH, amount of adsorbent, and initial pollutant concentration, on the adsorption efficiency of NiO nanoparticles were examined. The optimal conditions for AR97 removal were found to be a temperature of 25°C, pH of 2, adsorbent dosage of 4 g L-¹, and an initial AR97 concentration of 10 mg L-¹.
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