Kajian Penumbuhan CuO/Cu2O Terdekorasi Karbon Berbasis Biomassa pada plat Tembaga Menggunakan Metode PVD-like

Sakti, Taufik Tri (2026) Kajian Penumbuhan CuO/Cu2O Terdekorasi Karbon Berbasis Biomassa pada plat Tembaga Menggunakan Metode PVD-like. Other thesis, Insitutut Teknologi Sepuluh Nopember.

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Abstract

Lapisan oksida tembaga (CuO/Cu2O) merupakan material semikonduktor yang berpotensi untuk berbagai aplikasi seperti sensor, fotokatalis, dan penyimpanan energi. Pada penelitian ini, dilakukan penumbuhan lapisan CuO/Cu₂O terdekorasi karbon secara in-situ pada plat tembaga menggunakan metode Physical Vapor Deposition-like (PVD-like) berbasis sumber karbon dari biomassa tempurung kelapa. Proses sintesis dilakukan pada variasi temperatur pemanasan 500, 750, dan 900 C dan variasi waktu penahanan 30 dan 60 menit, sehingga dihasilkan 5 sampel: Cu-500-30, Cu-500-60, Cu-750-30, Cu-750-60, dan Cu-900-15. Kondisi Cu-900-30 diketahui sebagai batas atas parameter proses sehingga waktu penahanan di temperatur 900 C dipersingkat menjadi 15 menit (Cu-900-15). Karakterisasi dilakukan menggunakan XRD, FTIR, SEM/FESEM, EDX, elemental mapping, dan cross-section SEM. Hasil XRD mengidentifikasi fasa Cu2O dan CuO pada seluruh sampel, dengan Cu2O mendominasi pada persentase 78–92% dan kandungan CuO tertinggi sebesar 22% pada sampel Cu-750-30. Hasil FTIR mengonfirmasi terbentuknya ikatan Cu–O melalui pita serapan pada rentang 589–608 cm⁻¹. Kandungan oksigen tertinggi sebesar 16,59 wt% diperoleh pada sampel Cu-750-30, sedangkan ketebalan lapisan tertinggi sebesar 40,25 µm diperoleh pada sampel Cu-750-60. Karbon yang terdeposisi bersifat amorf berdasarkan tidak terdeteksinya puncak kristalin karbon pada XRD. Variasi temperatur dan waktu penahanan terbukti berpengaruh signifikan terhadap komposisi fasa, ukuran kristal, morfologi, serta ketebalan lapisan CuO/Cu2O terdekorasi karbon yang dihasilkan
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Copper oxide (CuO/Cu2O) layers are semiconductor materials with potential applications in sensors, photocatalysis, and energy storage. In this study, carbon-decorated CuO/Cu2O layers were grown in situ on copper substrates using a biomass-based Physical Vapor Deposition-like (PVD-like) method, employing coconut shell biomass as the carbon source. The synthesis process was carried out at heating temperatures of 500, 750, and 900 °C with holding times of 30 and 60 minutes, resulting in five samples: Cu-500-30, Cu-500-60, Cu-750-30, Cu-750-60, and Cu-900-15. The Cu-900-30 condition was identified as the upper limit of the processing parameters; therefore, the holding time at 900 °C was reduced to 15 minutes (Cu-900-15). Characterization was performed using X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy/Field Emission Scanning Electron Microscopy (SEM/FESEM), Energy Dispersive X-ray Spectroscopy (EDX), elemental mapping, and cross-sectional SEM analyses. XRD results identified the presence of Cu2O and CuO phases in all samples, with Cu2O being the dominant phase, accounting for 78–92%, while the highest CuO content (22%) was observed in the Cu-750-30 sample. FTIR analysis confirmed the formation of Cu–O bonds through absorption bands in the range of 589–608 cm⁻¹. The highest oxygen content, 16.59 wt%, was obtained in the Cu-750-30 sample, whereas the maximum layer thickness of 40.25 µm was achieved in the Cu-750-60 sample. The deposited carbon was found to be amorphous, as no crystalline carbon peaks were detected in the XRD patterns. Variations in heating temperature and holding time significantly affected the phase composition, crystallite size, morphology, and thickness of the resulting carbon-decorated CuO/Cu2O layers.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	PVD-like, CuO/Cu2O, coconut shell biomass, thermal oxidation, PVD-like, (CuO/Cu2O), Biomassa Tempurung Kelapa, Oksidasi Termal.
Subjects:	Q Science Q Science > QC Physics > QC173.4.C63 Composite materials
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Taufik Tri Sakti
Date Deposited:	16 Jul 2026 03:10
Last Modified:	16 Jul 2026 03:10
URI:	http://repository.its.ac.id/id/eprint/135158

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