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All Journal Jurnal Rekayasa Kimia & Lingkungan
Zul Arham
Department of Mathematics and Natural Sciences, Institute Agama Islam Negeri (IAIN), Kendari 93563–Southeast Sulawesi, Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Electrochemical Performance of Tellurium Oxide on TiO2/Ti Array for Photoelectrocatalytic Chemical Oxygen Demand Sensor Applications Maulidiyah Maulidiyah; Irwan Irwan; Annisa Indriani; La Ode Agus Salim; Zul Arham; Catherina M. Bijang; Kurniawan Kurniawan; Muhammad Nurdin
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 2 (2022): Jurnal Rekayasa Kimia & Lingkungan (July - December, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.308 KB) | DOI: 10.23955/rkl.v17i2.27784

Abstract

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.
Co-Authors Annisa Indriani Catherina M. Bijang Irwan Irwan Kurniawan Kurniawan La Ode Agus Salim Maulidiyah Maulidiyah Muhammad Nurdin