Wasesa, Guido Rolan (2025) Analisis Pengaruh Variasi Penambahan Massa CNT Hasil Sintesis Dari Ampas Tebu Terhadap Performa Fotokatalis Untuk Degradasi Rhodamin B Berbahan Komposit CuO/Fe2O3/CNT. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Fotokatalis berbasis nanokomposit telah menjadi solusi yang menjanjikan untuk degradasi polutan organik dalam air, termasuk pewarna Rhodamin B. Penelitian ini bertujuan untuk menganalisis pengaruh variasi penambahan massa Carbon Nanotube (CNT) terhadap performa fotokatalis berbahan komposit CuO/Fe₂O₃/CNT dalam proses degradasi Rhodamin B. Proses pembuatan CNT dimasukkan ampas tebu dan activated carbon dengan rasio 5:1 ke dalam microwave yang diatur pada daya 1000 w dan selama 30 menit. Sintesis nanokomposit dilakukan melalui metode stirring selama 1 jam kemudian dilanjutkan dengan sonifikasi selama 30 menit, lalu dikeringkan dalam oven pada temperatur 110°C semalaman. Variasi massa CNT ditambahkan dengan masing masing 0,02 g, 0,025 g, dan egradas0,03 g. Karakterisasi material hasil sintesis dilakukan menggunakan X-Ray Diffraction (XRD), Scanning Electron Microscopy - Energy Dispersive X-ray (SEM-EDX), BET, dan Diffuse Reflectance Spectroscopy UV-Vis (DRS UV-Vis) untuk mengevaluasi struktur kristal, morfologi, dan sifat optiknya. Uji fotokatalitik dilakukan dengan menyinari larutan Rhodamin B menggunakan sumber cahaya tampak, lalu menganalisis perubahan konsentrasi dengan spektrofotometer UV-Vis. Sintesis CNT dari ampas tebu telah berhasil dilakukan, dibuktikan dengan pengujian SEM yang telihat bentuk tabung seperti cacing yang merupakan bentuk khas dari CNT. Adapun pengujian XRD yang menunjukkan puncak difraksi (2θ) pada 26,31° dan pengujian FTIR muncul puncak pada 1580 cm⁻¹ menunjukkan ikatan C=C dalam CNT. Berdasarkan pengujian karakterisasi menggunakan SEM/EDX, XRD, FTIR yang telah dilakukan, komposit CuO/Fe2O3/CNT telah berhasil dibuat, dibuktikan dengan adanya CNT yang bergabung dengan CuO dan Fe2O3. Dan berdasarkan pengujian UV-Vis yang telah dilakukan, didapatkan komposit CuO/Fe2O3/CNT dengan variasi rasio penambahan rasio CNT sebesar 0,03 memiliki kemampuan untuk mendegradasi Rhodamin B paling besar, yaitu 91,49% pada lama waktu penyinaran 120 menit.
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Nanocomposite-based photocatalysts have emerged as a promising solution for the degradation of organic pollutants in water, including Rhodamine B dye. This study aims to analyze the effect of varying the mass of Carbon Nanotube (CNT) additions on the performance of CuO/Fe₂O₃/CNT composite photocatalysts in the degradation of Rhodamine B. The CNTs were synthesized using a mixture of sugarcane bagasse and activated carbon in a 5:1 ratio, processed in a microwave at 1000 W for 30 minutes. The nanocomposite synthesis was carried out via stirring for 1 hour followed by sonication for 30 minutes and then drying in an oven at 110°C overnight. The CNT mass variations used were 0.02 g, 0.025 g, and 0.03 g. Characterization of the synthesized materials was performed using X-Ray Diffraction (XRD), Scanning Electron Microscopy - Energy Dispersive X-ray (SEM-EDX), BET surface area analysis, and Diffuse Reflectance UV-Visible Spectroscopy (DRS UV-Vis) to evaluate the crystal structure, morphology, and optical properties. The photocatalytic test involved irradiating Rhodamine B solution under visible light, followed by concentration analysis using a UV-Vis spectrophotometer. The synthesis of CNTs from sugarcane bagasse was successful, as confirmed by SEM analysis showing tube-like worm-shaped structures, which are characteristic of CNTs. XRD analysis revealed a diffraction peak at 2θ = 26.31°, and FTIR analysis showed a peak at 1580 cm⁻¹, indicating the presence of C=C bonds in the CNT structure. Based on the SEM/EDX, XRD, and FTIR characterizations, the CuO/Fe₂O₃/CNT composite was successfully synthesized, evidenced by the integration of CNTs with CuO and Fe₂O₃. Furthermore, the UV-Vis analysis showed that the CuO/Fe₂O₃/CNT composite with a CNT addition of 0.03 g exhibited the highest degradation efficiency of Rhodamine B, achieving 91.49% degradation after 120 minutes of visible light irradiation.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Fotokatalis, CuO/Fe₂O₃/CNT, Rhodamin B, degradasi, karbon nanotube, Photocatalyst, CuO/Fe₂O₃/CNT, Rhodamin B, degradation, carbon nanotube |
| Subjects: | Q Science Q Science > QC Physics Q Science > QC Physics > QC162 Adsorption and absorption Q Science > QC Physics > QC173.4.C63 Composite materials Q Science > QD Chemistry Q Science > QD Chemistry > QD117 Absorption Q Science > QD Chemistry > QD501 Catalysis. Catalysts. |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Guido Rolan Wasesa |
| Date Deposited: | 30 Jul 2025 09:46 |
| Last Modified: | 30 Jul 2025 09:46 |
| URI: | http://repository.its.ac.id/id/eprint/124093 |
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