Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source
In this paper, the structural and optical properties of ZnO-SiO2-based ceramics fabricated from oil palm empty fruit bunch (OPEFB) were investigated. The OPEFB waste was burned at 600, 700 and 800 °C to form palm ash and was then treated with sulfuric acid to extract silica from the ash. X-ray fluor...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021
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| Online Access: | http://psasir.upm.edu.my/id/eprint/95257/ http://psasir.upm.edu.my/id/eprint/95257/1/Synthesis%20and%20characterization%20of%20ZnO-SiO2%20composite%20using%20oil%20palm%20empty%20fruit%20bunch%20as%20a%20potential%20silica%20source%20%20.pdf |
| _version_ | 1848862111413829632 |
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| author | Rahmat, Fida’i Yap, Wing Fen Anuar, Muhammad Fahmi Sheh Omar, Nur Alia Mohd Zaid, Mohd Hafiz Matori, Khamirul Amin Mohamed Khaidir, Rahayu Emilia |
| author_facet | Rahmat, Fida’i Yap, Wing Fen Anuar, Muhammad Fahmi Sheh Omar, Nur Alia Mohd Zaid, Mohd Hafiz Matori, Khamirul Amin Mohamed Khaidir, Rahayu Emilia |
| author_sort | Rahmat, Fida’i |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this paper, the structural and optical properties of ZnO-SiO2-based ceramics fabricated from oil palm empty fruit bunch (OPEFB) were investigated. The OPEFB waste was burned at 600, 700 and 800 °C to form palm ash and was then treated with sulfuric acid to extract silica from the ash. X-ray fluorescence (XRF) and X-ray diffraction (XRD) analyses confirmed the existence of SiO2 in the sample. Field emission scanning electron microscopy (FESEM) showed that the particles displayed an irregular shape and became finer after leaching. Then, the solid-state method was used to produce the ZnO-SiO2 composite and the samples were sintered at 600, 800, 1000, 1200 and 1400 °C. The XRD peaks of the Zn2SiO4 showed high intensity, which indicated high crystallinity of the composite. FESEM images proved that the grain boundaries were larger as the temperature increased. Upon obtaining the absorbance spectrum from ultraviolet–visible (UV–Vis) spectroscopy, the energy band gaps obtained were 3.192, 3.202 and 3.214 eV at room temperature, 600 and 800 °C, respectively, and decreased to 3.127, 2.854 and 2.609 eV at 1000, 1200 and 1400 °C, respectively. OPEFB shows high potential as a silica source in producing promising optical materials. |
| first_indexed | 2025-11-15T13:11:50Z |
| format | Article |
| id | upm-95257 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T13:11:50Z |
| publishDate | 2021 |
| publisher | MDPI AG |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-952572023-01-05T03:46:24Z http://psasir.upm.edu.my/id/eprint/95257/ Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source Rahmat, Fida’i Yap, Wing Fen Anuar, Muhammad Fahmi Sheh Omar, Nur Alia Mohd Zaid, Mohd Hafiz Matori, Khamirul Amin Mohamed Khaidir, Rahayu Emilia In this paper, the structural and optical properties of ZnO-SiO2-based ceramics fabricated from oil palm empty fruit bunch (OPEFB) were investigated. The OPEFB waste was burned at 600, 700 and 800 °C to form palm ash and was then treated with sulfuric acid to extract silica from the ash. X-ray fluorescence (XRF) and X-ray diffraction (XRD) analyses confirmed the existence of SiO2 in the sample. Field emission scanning electron microscopy (FESEM) showed that the particles displayed an irregular shape and became finer after leaching. Then, the solid-state method was used to produce the ZnO-SiO2 composite and the samples were sintered at 600, 800, 1000, 1200 and 1400 °C. The XRD peaks of the Zn2SiO4 showed high intensity, which indicated high crystallinity of the composite. FESEM images proved that the grain boundaries were larger as the temperature increased. Upon obtaining the absorbance spectrum from ultraviolet–visible (UV–Vis) spectroscopy, the energy band gaps obtained were 3.192, 3.202 and 3.214 eV at room temperature, 600 and 800 °C, respectively, and decreased to 3.127, 2.854 and 2.609 eV at 1000, 1200 and 1400 °C, respectively. OPEFB shows high potential as a silica source in producing promising optical materials. MDPI AG 2021-02-18 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/95257/1/Synthesis%20and%20characterization%20of%20ZnO-SiO2%20composite%20using%20oil%20palm%20empty%20fruit%20bunch%20as%20a%20potential%20silica%20source%20%20.pdf Rahmat, Fida’i and Yap, Wing Fen and Anuar, Muhammad Fahmi and Sheh Omar, Nur Alia and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Mohamed Khaidir, Rahayu Emilia (2021) Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source. Molecules, 26 (4). art. no. 1061. pp. 1-11. ISSN 1431-5165; ESSN: 1420-3049 https://www.mdpi.com/1420-3049/26/4/1061/htm 10.3390/molecules26041061 |
| spellingShingle | Rahmat, Fida’i Yap, Wing Fen Anuar, Muhammad Fahmi Sheh Omar, Nur Alia Mohd Zaid, Mohd Hafiz Matori, Khamirul Amin Mohamed Khaidir, Rahayu Emilia Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source |
| title | Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source |
| title_full | Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source |
| title_fullStr | Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source |
| title_full_unstemmed | Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source |
| title_short | Synthesis and characterization of ZnO-SiO2 composite using oil palm empty fruit bunch as a potential silica source |
| title_sort | synthesis and characterization of zno-sio2 composite using oil palm empty fruit bunch as a potential silica source |
| url | http://psasir.upm.edu.my/id/eprint/95257/ http://psasir.upm.edu.my/id/eprint/95257/ http://psasir.upm.edu.my/id/eprint/95257/ http://psasir.upm.edu.my/id/eprint/95257/1/Synthesis%20and%20characterization%20of%20ZnO-SiO2%20composite%20using%20oil%20palm%20empty%20fruit%20bunch%20as%20a%20potential%20silica%20source%20%20.pdf |