Dewi, Annisa Meilinda (2019) PENGARUH pH TERHADAP DEKOLORISASI FOTOKATALITIK METILEN BIRU DAN METIL JINGGA MENGGUNAKAN SEMIKONDUKTOR ZnO DI BAWAH PENYINARAN UV-LED. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pengaruh pH terhadap fotokatalisis metilen biru dan metil jingga menggunakan seng oksida (ZnO) di bawah penyinaran UV-LED telah diteliti. Seng oksida (ZnO) disintesis menggunakan metode presipitasi. Hasil karakterisasi menunjukkan bahwa ZnO memiliki struktur kristal heksagonal dengan ukuran partikel 0,125–0,5 µm, luas permukaan spesifik (SBET) sebesar 60,20 m²/g, volume pori meso sebesar 0,541 cm³/g, dan volume pori mikro sebesar 0,02 cm³/g. Pengaruh pH terhadap proses fotokatalisis metilen biru dan metil jingga menggunakan ZnO menunjukkan bahwa persentase removal tertinggi untuk metilen biru diperoleh pada pH 9, yaitu sebesar 95,642%, sedangkan untuk metil jingga diperoleh pada pH 3 dengan persentase removal sebesar 6,236%.
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The effect of pH on the photocatalytic degradation of methylene blue and methyl orange using zinc oxide (ZnO) under UV-LED irradiation was investigated. Zinc oxide (ZnO) was synthesized using the precipitation method. Characterization results showed that ZnO possessed a hexagonal crystal structure with particle sizes ranging from 0.125 to 0.5 µm, a specific surface area (SBET) of 60.20 m²/g, a mesopore volume of 0.541 cm³/g, and a micropore volume of 0.02 cm³/g. The effect of pH on the photocatalytic process demonstrated that the highest removal efficiency for methylene blue was achieved at pH 9, reaching 95.642%, whereas the highest removal efficiency for methyl orange was obtained at pH 3 with a removal percentage of 6.236%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Fotokatalisis, Seng Oksida, pH, Metilen biru, Metil jingga |
| Subjects: | Q Science > QD Chemistry > QD716 Photocatalysis. |
| Divisions: | Faculty of Natural Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | Annisa Meilinda Dewi |
| Date Deposited: | 20 Jul 2026 04:27 |
| Last Modified: | 20 Jul 2026 04:27 |
| URI: | http://repository.its.ac.id/id/eprint/67977 |
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