Enhanced Optical Properties of ZnO-TiO<sub>2</sub> Films Through Co-Sensitization with Multiple Natural Dyes
The ZnO-TiO2 films were co-sensitized with single, double, and triple natural dyes, leading to distinct effects on the optical properties. ZnO (wurtzite) and TiO2 (anatase) were prepared from commercial powders and the XRD results revealed that the crystallite size is 158 and 443 nm, respectively. T...
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Department of Chemistry, Universitas Gadjah Mada
2025-01-01
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| Series: | Indonesian Journal of Chemistry |
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| Online Access: | https://jurnal.ugm.ac.id/ijc/article/view/96154 |
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| author | Musyarofah Musyarofah Inas Nuraini Budi Prayitno Lusi Ernawati Andi Idhil Ismail Triwikantoro Triwikantoro |
| author_facet | Musyarofah Musyarofah Inas Nuraini Budi Prayitno Lusi Ernawati Andi Idhil Ismail Triwikantoro Triwikantoro |
| author_sort | Musyarofah Musyarofah |
| collection | DOAJ |
| description | The ZnO-TiO2 films were co-sensitized with single, double, and triple natural dyes, leading to distinct effects on the optical properties. ZnO (wurtzite) and TiO2 (anatase) were prepared from commercial powders and the XRD results revealed that the crystallite size is 158 and 443 nm, respectively. The UV absorbance of ZnO powder shows significant peaks at wavelengths of 255 and 345 nm, with a band gap energy of 3.07 eV. Meanwhile, TiO2 powder exhibits a maximum peak at 325 nm and possesses a band gap energy of 3.16 eV. The extraction of natural dyes (Moringa oleifera, Biancaea sappan, Matricaria chamomilla, Rosa, and Chrysanthemum) was carried out using a cost-effective and simple method involving immersion in ethanol for 2 × 24 h followed by filtration. FTIR test results show the presence of O–H, C–H, C=C, and C–O functional groups. The results of coating the ZnO-TiO2 film with natural dyes show that the UV spectrum peaks are higher than the visible light wavelength. Co-sensitization of double natural dyes demonstrated different effects on the ZnO-TiO2 film, i.e., achieved panchromatic absorption mainly in the UV wavelength spectrum. |
| format | Article |
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| institution | Kabale University |
| issn | 1411-9420 2460-1578 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Department of Chemistry, Universitas Gadjah Mada |
| record_format | Article |
| series | Indonesian Journal of Chemistry |
| spelling | doaj-art-ef7475cef607407fab1ccf90435307c82025-02-03T04:32:43ZengDepartment of Chemistry, Universitas Gadjah MadaIndonesian Journal of Chemistry1411-94202460-15782025-01-0125110010910.22146/ijc.9615437010Enhanced Optical Properties of ZnO-TiO<sub>2</sub> Films Through Co-Sensitization with Multiple Natural DyesMusyarofah Musyarofah0Inas Nuraini1Budi Prayitno2Lusi Ernawati3Andi Idhil Ismail4Triwikantoro Triwikantoro5Department of Physics, Institut Teknologi Kalimantan, Jl. Soekarno-Hatta Km. 15, Balikpapan 76127, IndonesiaDepartment of Physics, Institut Teknologi Kalimantan, Jl. Soekarno-Hatta Km. 15, Balikpapan 76127, IndonesiaDepartment of Mechanical Engineering, Universitas Balikpapan, Jl. Pupuk Raya, Balikpapan 76114, IndonesiaDepartment of Chemical Engineering, Institut Teknologi Kalimantan, Jl. Soekarno-Hatta Km. 15, Balikpapan 76127, IndonesiaDepartment of Mechanical Engineering, Institut Teknologi Kalimantan, Jl. Soekarno-Hatta Km. 15, Balikpapan 76127, IndonesiaDepartment of Physics, Faculty of Data Science and Analytics, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, IndonesiaThe ZnO-TiO2 films were co-sensitized with single, double, and triple natural dyes, leading to distinct effects on the optical properties. ZnO (wurtzite) and TiO2 (anatase) were prepared from commercial powders and the XRD results revealed that the crystallite size is 158 and 443 nm, respectively. The UV absorbance of ZnO powder shows significant peaks at wavelengths of 255 and 345 nm, with a band gap energy of 3.07 eV. Meanwhile, TiO2 powder exhibits a maximum peak at 325 nm and possesses a band gap energy of 3.16 eV. The extraction of natural dyes (Moringa oleifera, Biancaea sappan, Matricaria chamomilla, Rosa, and Chrysanthemum) was carried out using a cost-effective and simple method involving immersion in ethanol for 2 × 24 h followed by filtration. FTIR test results show the presence of O–H, C–H, C=C, and C–O functional groups. The results of coating the ZnO-TiO2 film with natural dyes show that the UV spectrum peaks are higher than the visible light wavelength. Co-sensitization of double natural dyes demonstrated different effects on the ZnO-TiO2 film, i.e., achieved panchromatic absorption mainly in the UV wavelength spectrum.https://jurnal.ugm.ac.id/ijc/article/view/96154photoanodeabsorbanceoptical propertiesco-sensitizedzno-tio2 |
| spellingShingle | Musyarofah Musyarofah Inas Nuraini Budi Prayitno Lusi Ernawati Andi Idhil Ismail Triwikantoro Triwikantoro Enhanced Optical Properties of ZnO-TiO<sub>2</sub> Films Through Co-Sensitization with Multiple Natural Dyes Indonesian Journal of Chemistry photoanode absorbance optical properties co-sensitized zno-tio2 |
| title | Enhanced Optical Properties of ZnO-TiO<sub>2</sub> Films Through Co-Sensitization with Multiple Natural Dyes |
| title_full | Enhanced Optical Properties of ZnO-TiO<sub>2</sub> Films Through Co-Sensitization with Multiple Natural Dyes |
| title_fullStr | Enhanced Optical Properties of ZnO-TiO<sub>2</sub> Films Through Co-Sensitization with Multiple Natural Dyes |
| title_full_unstemmed | Enhanced Optical Properties of ZnO-TiO<sub>2</sub> Films Through Co-Sensitization with Multiple Natural Dyes |
| title_short | Enhanced Optical Properties of ZnO-TiO<sub>2</sub> Films Through Co-Sensitization with Multiple Natural Dyes |
| title_sort | enhanced optical properties of zno tio sub 2 sub films through co sensitization with multiple natural dyes |
| topic | photoanode absorbance optical properties co-sensitized zno-tio2 |
| url | https://jurnal.ugm.ac.id/ijc/article/view/96154 |
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