Synthesis of BiFeO3 nanostructures via microwave-assisted combustion method and photocatalytic study of it for photoderadation of methyl orange

Article Type:
Research/Original Article (بدون رتبه معتبر)
Abstract:
Recently, the degradation of organic pollutants using novel semiconductors with strong absorbance for broad ranged visible lights has generated broad interest of photocatalysis. In the last few years, perovskite-type bismuth ferrite (BiFeO3, BFO) has received a lot of attention. BiFeO3 is one of the rare well-known multiferroic compounds with a rhombohedrally distorted perovskite structure of space group R3c that exhibits ferroelectric and antiferromagnetic properties at room temperature. The narrow band gap and high chemical stability of BiFeO3 make it an effective photocatalyst in the visible light region during the photocatalytic process. BiFeO3 nanopowder was synthesized via a microwave-assisted combustion method by using acetic acid as fuel, for the first time. The structural characterization showed that BiFeO3 was almost pure perovskite type. A ferromagnetic hysteresis loop with a saturation magnetization (MS) of 0.66 emu/g has been observed at room temperature in the sample. The small band gap (=2.08 eV) of prepared BiFeO3 indicates a possibility of utilizing much visible light for photocatalysis. Photocatalytic test for degradation of methyl orange dye indicated that BiFeO3 exhibited high photocatalytic activity.
Language:
Persian
Published:
Journal of Environmental Science Studies, Volume:2 Issue: 3, 2017
Pages:
492 to 498
magiran.com/p1841105  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 1,390,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!