نانومقیاس

نانومقیاس

حذف آلاینده‌های فلزی مس و نیکل از آب آلوده با روش الکترواکسایش پالسی آهن

نوع مقاله : مقاله پژوهشی

نویسندگان
1 گروه فیزیک، دانشکده علوم پایه، دانشگاه لرستان، خرم آباد، استان لرستان
2 گروه فیزیک، دانشکده علوم، دانشگاه شهید چمران اهواز، اهواز، استان خوزستان
چکیده
به منظور حذف مس و نیکل از آب، روش الکترواکسایش پالسی آهن با اعمال شرایط متنوع آزمایشگاهی بکار گرفته شد. بر اساس داده های اسپکتروفتومتری جذب اتمی، مس و نیکل با اعمال ولتاژ 10 ولت پس از حدود یک ساعت تا حدود 80 درصد از آب حذف می‌شوند. ساختار و خواص مغناطیسی رسوب توسط XRD، VSM و SEM مورد مطالعه قرار گرفت. الگوهای XRD نمونه‌های رسوب پس از جذب آلاینده، تشکیل اکسید آهن و برخی ترکیبات مس یا نیکل را تأیید می‌کند. بررسی خواص مغناطیسی نمونه‌ها نشان می‌دهد که همه نمونه‌ها از نظر مغناطیسی نرم هستند و مغناطش ویژه با تغییر شرایط آزمایشگاهی تغییر می‌کند. مغناطش رسوب حاصل پس از حذف مس، بیشتر از مغناطش رسوب پس از حذف نیکل است. تصاویر SEM تشکیل ذرات نانومتری در رسوب را نشان می‌دهد. در نقشه‌های آنالیز عنصری رسوب تولید شده، عناصر آهن، اکسیژن و نیکل یا مس مشاهده شدند.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Removal of copper and nickel from contaminated water using pulsed iron electrooxidation method

نویسندگان English

Saba Mosivand 1
Iraj Kazeminezhad 2
1 Department of Physics, Faculty of Basic Sciences, Lorestan University, Khorrram Abad
2 Department of Physics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz
چکیده English

In order to remove copper and nickel from water, the pulsed iron electrooxidation method was used under various laboratory conditions. According to atomic absorption spectrophotometry data, copper and nickel are removed from water by applying a voltage of 10 V after about one hour to about 80%. The structure and magnetic properties of the precipitate were studied by XRD, VSM and SEM. XRD patterns of sediment samples after pollutant absorption confirm the formation of iron oxide and some copper or nickel compounds. Analysis of the magnetic properties of the samples shows that all the samples are magnetically soft and the specific magnetization changes with changing laboratory conditions. The magnetization of the precipitate after the removal of copper is greater than the magnetization of the precipitate after the removal of nickel. SEM images show the formation of nanometer particles in the precipitate. In the elemental analysis maps of the produced sediment, the elements iron, oxygen, and nickel or copper were observed.

کلیدواژه‌ها English

Pulsed electrooxidation of iron
Magnetic nanostructures
Copper
Nickel
Contaminated water
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دوره 12، شماره 2
تابستان 1404
صفحه 116-127

  • تاریخ دریافت 01 اسفند 1403
  • تاریخ بازنگری 14 خرداد 1404
  • تاریخ پذیرش 12 مرداد 1404