Banana-peel derived activated carbon for microwave absorption at X-band frequency
محل انتشار: فصلنامه سنتز و تفجوشی، دوره: 2، شماره: 3
سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 101
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شناسه ملی سند علمی:
JR_SYNSINT-2-3_002
تاریخ نمایه سازی: 14 آذر 1402
چکیده مقاله:
The rapid advancement in information technology, communication, and electronic devices elevates the need to develop suitable materials for microwave absorption (MA) which should have the properties of an ideal microwave absorber. Porous activated carbon from agricultural wastes has piqued the interest of MA researchers due to their distinct properties such as good specific surface area, high dielectric loss, good electrical conductivity, and low density. Herein banana peel activated carbon was prepared by activating banana peel precursor with KOH and carbonizing at different temperatures. The difference in the porous structure with varying carbonization temperature was visible in the FESEM image, validated by BET analysis. The Banana Peel Activated carbon samples exhibited good microwave absorption performance, with BP-AC۷۰۰ displaying a minimum Reflection Loss (RL) of −۴۰.۶۲ dB at ۱۰.۷۲ GHz & ۳.۰ mm thickness. In addition, the obtained effective absorption bandwidth of ۳.۵ GHz spanned through the X band frequency. This exceptional microwave absorption was attained due to the sample's good conductive loss and Porous favourable morphology. This study inspires the development of future facile functional agricultural waste-derived microwave absorbers.
کلیدواژه ها:
Microwave absorbing materials (MAMs) ، Banana peel-activated carbon (BP-AC) ، Reflection loss (RL) ، Porous material ، Microwave absorption mechanism
نویسندگان
Hojjatollah Soleimani
Department of Physics, North Tehran Branch, Islamic Azad University, ۱۶۵۱۱- ۵۳۳۱۱, Tehran, Iran
Jemilat Yetunde Yusuf
Department of Fundamental and Applied Sciences, Universiti Teknologi Petronas, ۳۱۷۵۰ Darul Ridzuan, Perak, Malaysia
Hassan Solimani
Department of Fundamental and Applied Sciences, Universiti Teknologi Petronas, ۳۱۷۵۰ Darul Ridzuan, Perak, Malaysia
Lee Kean Chuan
Department of Fundamental and Applied Sciences, Universiti Teknologi Petronas, ۳۱۷۵۰ Darul Ridzuan, Perak, Malaysia