Claresta, Michaela (2023) Analisis Pengaruh Heat Treatment Terhadap Performa Oksidasi Glukosa Oleh Fotoanoda CsPbBr3. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Perovskite CsPbBr3 memiliki sifat fotoelektrokimia yang baik sehingga berpotensi dijadikan fotoanoda. Fotoanoda yang sering digunakan adalah fotoanoda FTO/TiO2/CsPbBr3 pada aplikasi water splitting. Sejauh ini, belum ada penelitian tentang fotoanoda FTO/TiO2/CsPbBr3 untuk mengoksidasi glukosa yang berasal dari biomassa yang keberadaannya melimpah. Penelitian ini bertujuan untuk menganalisis pengaruh heat treatment dan konsentrasi glukosa terhadap performa oksidasi glukosa serta efisiensi dari konversi glukosa dan produksi listrik. Larutan CsPbBr3 dibuat terlebih dahulu pada kondisi vakum dengan metode Ligan Assisted Reprecipitation (LARP) kemudian dilanjutkan dengan proses fabrikasi fotoanoda FTO/TiO2/CsPbBr3 yang diberi variasi tanpa heat treatment dan dengan heat treatment temperatur 110o serta variasi konsentrasi larutan glukosa 0,2 M dan 0,5 M. Pengujian XRD dan SEM dilakukan untuk mengetahui fasa yang terbentuk dan morfologi CsPbBr3. Hasil pengujian XRD dan SEM mengkonfirmasi adanya fasa CsPbBr3 dan terbentuknya fasa CsPb2Br5 akibat proses heat treatment. Pengujian CV menunjukkan bahwa fotoanoda FTO/TiO2/CsPbBr3 tanpa heat treatment dan elektrolit larutan glukosa 0,2 M memiliki peak oksidasi lebih tinggi sehingga meningkatkan current density yang dihasilkan. Hasil ini sejalan dengan pengujian EIS yang menunjukkan adanya proses oksidasi pada perovskite CsPbBr3 akibat proses heat treatment yang dapat menurunkan performa oksidasi glukosa dari fotoanoda FTO/TiO2/CsPbBr3. Berdasarkan pengujian HPLC, efisiensi tertinggi konversi glukosa dan produksi listrik masing-masing adalah 97,37% dan 1,2744 mA/cm2
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Perovskite CsPbBr3 has good photoelectrochemical properties so it has the potential to be used as a photoanode. Photoanodes that are often used are FTO/TiO2/CsPbBr3 photoanodes in water splitting applications. So far, there has been no research on FTO/TiO2/CsPbBr3 photoanodes to oxidize glucose from abundant biomass. This study aims to analyze the effect of heat treatment and glucose concentration on glucose oxidation performance and the efficiency of glucose conversion and electricity production. The CsPbBr3 solution was prepared first under vacuum conditions and then continued with the FTO/TiO2/CsPbBr3 photoanode fabrication process which was given variations without heat treatment and with heat treatment at 110o temperature and with variations in the concentration of 0.2 M glucose solution and 0.5 M. XRD and SEM testing conducted to determine the phase formed and the morphology of CsPbBr3. The results of XRD and SEM tests confirmed the presence of CsPbBr3 which remained stable when given a heat treatment process and the formation of a CsPb2Br5 phase due to the heat treatment process. CV testing showed that the FTO/TiO2/CsPbBr3 photoanode without heat treatment and the electrolyte of 0.2 M glucose solution had a higher oxidation peak thereby increasing the resulting current density. This result is in line with the EIS test which shows that there is an oxidation process in the CsPbBr3 perovskite due to the heat treatment process which can reduce the glucose oxidation performance of the FTO/TiO2/CsPbBr3 photoanode. The highest efficiency of glucose conversion and electricity production are 97.37% and 1.2744 mA/cm2 respectively
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Fotoanoda, Heat treatment, Oksidasi glukosa, Glucose oxidation, Photoanode |
| Subjects: | A General Works > AC Collections. Series. Collected works A General Works > AC Collections. Series. Collected works T Technology > TN Mining engineering. Metallurgy > TN752.I5 Steel--Heat treatment |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Michaela Claresta Erja Maheswari |
| Date Deposited: | 09 Feb 2023 17:42 |
| Last Modified: | 09 Feb 2023 17:42 |
| URI: | http://repository.its.ac.id/id/eprint/96664 |
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