Electrochemical Performance of Tellurium Oxide on TiO2/Ti Array for Photoelectrocatalytic Chemical Oxygen Demand Sensor Applications
| Autor: | Maulidiyah Maulidiyah, Irwan Irwan, Annisa Indriani, La Ode Agus Salim, Zul Arham, Catherina M. Bijang, Kurniawan Kurniawan, Muhammad Nurdin |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Jurnal Rekayasa Kimia & Lingkungan, Vol 17, Iss 2, Pp 163-170 (2022) |
| Druh dokumentu: | article |
| ISSN: | 1412-5064 2356-1661 |
| DOI: | 10.23955/rkl.v17i2.27784 |
| Popis: | The experiments were carried out using Te-TiO2/Ti as working electrodes, prepared by the simple anodization technique and dip coating method, on Ti substrates (TiO2/Ti). The measurements were performed in an electrochemical cell using a three-electrode system, with Te-TiO2/Ti as the working electrode, Ag/AgCl as the reference electrode and pt as the auxiliary electrode. A flow system for determining the profile and photocurrent response of reactive orange 84 was developed using Linear Sweep Voltammetry (LSV) and Multi-Pulse Amperometry (MPA). The physicochemical properties of Te-TiO2/Ti electrodes have been studied using UV–vis DRS analysis techniques and compared with un-doped TiO2/Ti electrodes. The UV–vis DRS showed that the TiO2/Ti doped Te functionally decreases bandgap to 3.0 eV. The results showed that the photocurrent of reactive orange 84 was observed in the concentration range (1-5 μM), with a linear response between concentration and charge. |
| Databáze: | Directory of Open Access Journals |
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