مجله فصل مشترک ها، لایه های نازک و سیستم های با بعد کم
تخریب فوتوکاتالیستی کنگورد توسط نانوذرات اکسید روی با مورفولوژی متفاوت
نوع مقاله : مقاله پژوهشی
نویسنده
گروه شیمی،واحد تهران شرق،دانشگاه آزاد اسلامی، تهران، ایران
چکیده
در این مطالعه، نانوذرات اکسید روی در سه شکل کروی، میله ای و صفحه ای با استفاده از روش هیدروترمال و سه سورفکتانت متفاوت یعنی تری اتانول آمین ، ستیل تری متیل آمونیوم برومید و سدیم دودسیل سولفات سنتز شدند. در همه موارد، ترکیب شیمیایی، شناسایی پودر، مورفولوژی و اندازه ذرات محصول نهایی توسط اسپکتروسکوپی مادون قرمز تبدیل فوریه (FTIR) ، پراش اشعه ایکس (XRD)، میکروسکوپ الکترونی روبشی (FESEM) ، آنالیز عنصری EDX و طیف سنجی UV-Vis شناسایی شدند. فعالیت فوتوکاتالیستی نانوذرات برای تخریب آلاینده های آلی (رنگدانه کنگورد) بررسی شد. آزمایش های حذف کنگورد به عنوان یک آلاینده آلی آب، فعالیت فوتوکاتالیستی و توانایی جذب سطحی اکسیدهای روی سنتز شده را نشان می دهد. سرانجام ، مقایسه نتایج حذف رنگ نشان داد که نانوذره میله ای دارای راندمان بیشتری در تخریب کنگورد با بازده 97٪ در طی 2 ساعت در pH = 8 می باشد.
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