Synthesis and Characterization of SCDs/TiO2 Composite
Synthesis of sulphur-doped carbon nanodots immobilized on the TiO2 surface (SCDs/TiO2) composite was carried out using the sol-gel method with SCDs and titanium tetraisopropoxide (TTIP) as precursors. SCDs were prepared from citric acid monohydrate, urea, and sodium disulphite using the microwave te...
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| Format: | Article |
| Language: | English |
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Universitas PGRI Madiun
2022-12-01
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| Series: | CHEESA |
| Subjects: | |
| Online Access: | http://e-journal.unipma.ac.id/index.php/cheesa/article/view/13915 |
| _version_ | 1797641718334488576 |
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| author | Anthoni Batahan Aritonang Ajuk Sapar Heni Puspita Sari Puji Ardiningsih Adhitiyawarman Adhitiyawarman |
| author_facet | Anthoni Batahan Aritonang Ajuk Sapar Heni Puspita Sari Puji Ardiningsih Adhitiyawarman Adhitiyawarman |
| author_sort | Anthoni Batahan Aritonang |
| collection | DOAJ |
| description | Synthesis of sulphur-doped carbon nanodots immobilized on the TiO2 surface (SCDs/TiO2) composite was carried out using the sol-gel method with SCDs and titanium tetraisopropoxide (TTIP) as precursors. SCDs were prepared from citric acid monohydrate, urea, and sodium disulphite using the microwave technique. SCDs/TiO2 was then visually observed under UV 365 nm and characterized by UV-Vis diffuse reflectance spectrophotometry (UV-Vis/DRS), Photoluminescence (PL) spectroscopy, Fourier transform infrared (FT-IR), and X-ray diffraction (XRD). The SCDs/TiO2 composite product had a brown solid with a green luminescent under UV light. Furthermore, UV-Vis/DRS for variations in SCDs concentrations of 0.5%; 1.25%, and 2.5% showed Eg values of 2.33 eV, 2.14 eV, and 1.61 eV, respectively. The results showed that SCDs caused the maximum emission peak (λEm) to redshift and also affected the intensity of PL TiO2. There was also a shift in the absorption peak towards the visible light region. Based on the results, the 0.5% SCDs/TiO2 was the optimum concentration with the lowest intensity as an indication of separation of the (e-) and (h+) charge pairs, which greatly enhanced the photocatalytic efficiency. |
| first_indexed | 2024-03-11T13:49:40Z |
| format | Article |
| id | doaj.art-e419822fb3af4be589c05d7f640df0ee |
| institution | Directory Open Access Journal |
| issn | 2614-8757 2615-2347 |
| language | English |
| last_indexed | 2024-03-11T13:49:40Z |
| publishDate | 2022-12-01 |
| publisher | Universitas PGRI Madiun |
| record_format | Article |
| series | CHEESA |
| spelling | doaj.art-e419822fb3af4be589c05d7f640df0ee2023-11-02T09:23:34ZengUniversitas PGRI MadiunCHEESA2614-87572615-23472022-12-01529210010.25273/cheesa.v5i2.13915.92-1004056Synthesis and Characterization of SCDs/TiO2 CompositeAnthoni Batahan Aritonang0Ajuk Sapar1Heni Puspita Sari2Puji Ardiningsih3Adhitiyawarman Adhitiyawarman4Universitas TanjungpuraUniversitas TanjungpuraUniversitas TanjungpuraUniversitas TanjungpuraUniversitas TanjungpuraSynthesis of sulphur-doped carbon nanodots immobilized on the TiO2 surface (SCDs/TiO2) composite was carried out using the sol-gel method with SCDs and titanium tetraisopropoxide (TTIP) as precursors. SCDs were prepared from citric acid monohydrate, urea, and sodium disulphite using the microwave technique. SCDs/TiO2 was then visually observed under UV 365 nm and characterized by UV-Vis diffuse reflectance spectrophotometry (UV-Vis/DRS), Photoluminescence (PL) spectroscopy, Fourier transform infrared (FT-IR), and X-ray diffraction (XRD). The SCDs/TiO2 composite product had a brown solid with a green luminescent under UV light. Furthermore, UV-Vis/DRS for variations in SCDs concentrations of 0.5%; 1.25%, and 2.5% showed Eg values of 2.33 eV, 2.14 eV, and 1.61 eV, respectively. The results showed that SCDs caused the maximum emission peak (λEm) to redshift and also affected the intensity of PL TiO2. There was also a shift in the absorption peak towards the visible light region. Based on the results, the 0.5% SCDs/TiO2 was the optimum concentration with the lowest intensity as an indication of separation of the (e-) and (h+) charge pairs, which greatly enhanced the photocatalytic efficiency.http://e-journal.unipma.ac.id/index.php/cheesa/article/view/13915microwavephotoluminescencescdssol-geltio2 |
| spellingShingle | Anthoni Batahan Aritonang Ajuk Sapar Heni Puspita Sari Puji Ardiningsih Adhitiyawarman Adhitiyawarman Synthesis and Characterization of SCDs/TiO2 Composite CHEESA microwave photoluminescence scds sol-gel tio2 |
| title | Synthesis and Characterization of SCDs/TiO2 Composite |
| title_full | Synthesis and Characterization of SCDs/TiO2 Composite |
| title_fullStr | Synthesis and Characterization of SCDs/TiO2 Composite |
| title_full_unstemmed | Synthesis and Characterization of SCDs/TiO2 Composite |
| title_short | Synthesis and Characterization of SCDs/TiO2 Composite |
| title_sort | synthesis and characterization of scds tio2 composite |
| topic | microwave photoluminescence scds sol-gel tio2 |
| url | http://e-journal.unipma.ac.id/index.php/cheesa/article/view/13915 |
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