Analisis Pengaruh pH Pada Proses Fotodegradasi Rhodamine B Menggunakan Material Fotokatalis Komposit Asbe/Fe2O3

Ahsani, Azi Fahrudin (2024) Analisis Pengaruh pH Pada Proses Fotodegradasi Rhodamine B Menggunakan Material Fotokatalis Komposit Asbe/Fe2O3. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

SBE merupakan bahan limbah padat yang dihasilkan dari pemurnian minyak nabati yang tersusun atas material SiO2 dan Al2O3 dengan prosentase 60-80%. Kandungan yang terkandung dalam unsur Al2O3 dan SiO2 pada SBE dapat menarik partikel permukaan sehingga dapat mengadsorpsi pewarna. Fotodegradasi adalah proses penguraian senyawa organik menggunakan cahaya sebagai sumber energi. Dalam penelitian ini, SBE dapat diaktivasi dan digunakan sebagai fotokatalis untuk mendegradasi RhB dengan bantuan cahaya. Proses sintesis Fe2O3 melibatkan metode hidrotermal, sementara SBE sebelum dilakukan sintesis komposit diaktivasi dengan metode pirolisis dengan temperature 220 C untuk mendapatkan hasil yang lebih optimal. Penelitian ini menerapkan variasi pengaruh pH pada proses Fotodegradasi Rhodamine B dengan pH 3, 5, 7, 10, dan 12. Kemudian material dianalisis menggunakan berbagai karakterisasi material seperti SEM-EDX (Scanning Electron Microscope-Energy Dispersive X-Ray), FTIR (Fourier Transform Infra Red Spectroscopy), XRD (X-Ray Diffraction), BET (Bruner Emmet Teller), dan UV-Vis (UV-Visible Spectroscopy), untuk memperoleh informasi mengenai struktur, gugus fungsi, morfologi, luas permukaan, energi celah pita, dan panjang gelombang. Hasil penelitian ini pada pengujian fotokatalitik dengan penyinaran selama 5 jam dengan larutan Rhodamine B pada pH 3 material ASBE, Fe2O3, dan komposit ASBE/Fe2O3 didapatkan persentase degradasi Rhodamine B masing masing 89,6%, 56,6%, dan 79,8%. Dari variasi pH 3, 5, 7, 10, dan 12 didapatkan hasil dari pengujian fotokatalitik untuk degradasi larutan Rhodamine B hasil dengan efisiensi tertinggi yaitu pada variasi pH 3 dengan persen degradasi komposit ASBE/ Fe2O3 (C220) yaitu dengan persen degradasi 79,8%
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SBE is a solid waste material produced from refining vegetable oil which is composed of SiO2 and Al2O3 materials with a percentage of 60-80%. The elements contained in Al2O3 and SiO2 in SBE can attract surface particles so that they can adsorb dyes. Photodegradation is the process of breaking down organic compounds using light as an energy source. In this research, SBE can be activated and used as a photocatalyst to destroy RhB with the help of light. The Fe2O3 synthesis process involves a hydrothermal method, while SBE before composite synthesis is carried out is activated using a pyrolysis method at a temperature of 220 C to obtain more optimal results. This research applies variations in the influence of pH on the Photodegradation process of Rhodamine B with pH 3, 5, 7, 10, and 12. Then the material is analyzed using various material characterizations such as SEM-EDX (Scanning Electron Microscope-Energy Dispersive X-Ray), FTIR (Fourier Transform Infra Red Spectroscopy), XRD (X-Ray Diffraction), BET (Bruner Emmet Teller), and UV-Vis (UV-Visible Spectroscopy), to obtain information regarding structure, functional groups, morphology, surface area, band gap energy, and wavelength. The results of this research in photocatalytic testing with irradiation for 5 hours with Rhodamine B solution at pH 3 for ASBE, Fe2O3, and ASBE/Fe2O3 (C220) composite materials showed that the degradation percentage of Rhodamine B was 89,6%, 56,6%, and 79,8%, respectively. From variations in pH 3, 5, 7, 10, and 12, the results obtained from photocatalytic testing for the degradation of Rhodamine B solution resulted in the highest efficiency, namely at variation pH 3 with a degradation percentage of the ASBE/Fe2O3 (C220) composite, namely with a degradation percentage of 79,8%.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Adsorpsi, Fotodegradasi, Hidrotermal, Adsorption, Photodegradation, Hydrothermal, ASBE/Fe2O3, Rhodamine-B
Subjects:	Q Science > QD Chemistry > QD716 Photocatalysis.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Azi Fahrudin Ahsani
Date Deposited:	25 Mar 2024 02:21
Last Modified:	25 Mar 2024 02:21
URI:	http://repository.its.ac.id/id/eprint/107842

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