Microwave absorption properties of Fe2O3 and Fe2O3/CNTs nanocomposites
The dielectric loss properties of recycled Fe2O3 (iron oxide nanoparticles, hematite) can be enhanced by using it as a catalyst for synthesizing carbon nanotubes (CNTs) from waste cooking oil. Hematite was successfully processed using the high-energy ball milling (HEBM) method for 12 h and sintered...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Malaysian Solid-State Science and Technology Society
2024
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/119171/ http://psasir.upm.edu.my/id/eprint/119171/1/119171.pdf |
| _version_ | 1848867893610020864 |
|---|---|
| author | Azis, Raba'ah Syahidah Shaari, Abdul Halim Awang Kechik, Mohd Mustafa Lim, Kean Pah Chen, Soo Kien Muhammad, Farah Diana Matori, Khamirul Amin Ismail, Ismayadi Elmahaishi, Madiha Fathi |
| author_facet | Azis, Raba'ah Syahidah Shaari, Abdul Halim Awang Kechik, Mohd Mustafa Lim, Kean Pah Chen, Soo Kien Muhammad, Farah Diana Matori, Khamirul Amin Ismail, Ismayadi Elmahaishi, Madiha Fathi |
| author_sort | Azis, Raba'ah Syahidah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The dielectric loss properties of recycled Fe2O3 (iron oxide nanoparticles, hematite) can be enhanced by using it as a catalyst for synthesizing carbon nanotubes (CNTs) from waste cooking oil. Hematite was successfully processed using the high-energy ball milling (HEBM) method for 12 h and sintered at 600 °C for 4 h. This work aimed to improve the electromagnetic (EM) wave absorption characteristics in the frequency range of 8−18 GHz by increasing interfacial polarization and dielectric loss resulting from the growth of CNTs. Our results indicated that Fe2O3/CNTs showed the highest microwave absorption, exceeding 99.9%, with a minimum reflection loss of –15.05 dB and an absorption bandwidth of 1.68 GHz. The microwave absorption properties of these nanocomposites were attributed to the combined effects of dielectric loss from CNTs and magnetic loss from hematite. |
| first_indexed | 2025-11-15T14:43:44Z |
| format | Article |
| id | upm-119171 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:43:44Z |
| publishDate | 2024 |
| publisher | The Malaysian Solid-State Science and Technology Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1191712025-08-07T01:50:42Z http://psasir.upm.edu.my/id/eprint/119171/ Microwave absorption properties of Fe2O3 and Fe2O3/CNTs nanocomposites Azis, Raba'ah Syahidah Shaari, Abdul Halim Awang Kechik, Mohd Mustafa Lim, Kean Pah Chen, Soo Kien Muhammad, Farah Diana Matori, Khamirul Amin Ismail, Ismayadi Elmahaishi, Madiha Fathi The dielectric loss properties of recycled Fe2O3 (iron oxide nanoparticles, hematite) can be enhanced by using it as a catalyst for synthesizing carbon nanotubes (CNTs) from waste cooking oil. Hematite was successfully processed using the high-energy ball milling (HEBM) method for 12 h and sintered at 600 °C for 4 h. This work aimed to improve the electromagnetic (EM) wave absorption characteristics in the frequency range of 8−18 GHz by increasing interfacial polarization and dielectric loss resulting from the growth of CNTs. Our results indicated that Fe2O3/CNTs showed the highest microwave absorption, exceeding 99.9%, with a minimum reflection loss of –15.05 dB and an absorption bandwidth of 1.68 GHz. The microwave absorption properties of these nanocomposites were attributed to the combined effects of dielectric loss from CNTs and magnetic loss from hematite. The Malaysian Solid-State Science and Technology Society 2024 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/119171/1/119171.pdf Azis, Raba'ah Syahidah and Shaari, Abdul Halim and Awang Kechik, Mohd Mustafa and Lim, Kean Pah and Chen, Soo Kien and Muhammad, Farah Diana and Matori, Khamirul Amin and Ismail, Ismayadi and Elmahaishi, Madiha Fathi (2024) Microwave absorption properties of Fe2O3 and Fe2O3/CNTs nanocomposites. Solid State Science and Technology, 32 (2). pp. 42-48. ISSN 0128-7389 https://myjms.mohe.gov.my/index.php/masshp/article/view/26547 |
| spellingShingle | Azis, Raba'ah Syahidah Shaari, Abdul Halim Awang Kechik, Mohd Mustafa Lim, Kean Pah Chen, Soo Kien Muhammad, Farah Diana Matori, Khamirul Amin Ismail, Ismayadi Elmahaishi, Madiha Fathi Microwave absorption properties of Fe2O3 and Fe2O3/CNTs nanocomposites |
| title | Microwave absorption properties of Fe2O3 and Fe2O3/CNTs nanocomposites |
| title_full | Microwave absorption properties of Fe2O3 and Fe2O3/CNTs nanocomposites |
| title_fullStr | Microwave absorption properties of Fe2O3 and Fe2O3/CNTs nanocomposites |
| title_full_unstemmed | Microwave absorption properties of Fe2O3 and Fe2O3/CNTs nanocomposites |
| title_short | Microwave absorption properties of Fe2O3 and Fe2O3/CNTs nanocomposites |
| title_sort | microwave absorption properties of fe2o3 and fe2o3/cnts nanocomposites |
| url | http://psasir.upm.edu.my/id/eprint/119171/ http://psasir.upm.edu.my/id/eprint/119171/ http://psasir.upm.edu.my/id/eprint/119171/1/119171.pdf |