TY - JOUR AU - Sendil, G.K. AU - Soundarrajan, E. AU - Roselin Ranjitha, M. AU - Klaivani, R.A. AU - Raghu, S. PY - 2022/12/27 Y2 - 2024/03/28 TI - Hydrothermal Synthesis of Copper-Decorated Titanium Dioxide Spherulites and their Photocatalytic Activity against Reactive Dyes JF - Asian Journal of Chemistry JA - ajc VL - 35 IS - 1 SE - Articles DO - 10.14233/ajchem.2023.24013 UR - https://asianpubs.org/index.php/ajchem/article/view/35_1_5 SP - 45-51 AB - <p style="text-align: justify;">The untreated discharge of industrial dyes into water supplies is a likely occurrence that can cause a number of dangerous scenarios that are hazardous for the ecology. Herein, a simple hydrothermal strategy for synthesizing copper-doped titanium dioxide nanoparticles (Cu-TiO<sub>2</sub>) were presented and investigated its ability to photocatalytically degrade dyes <em>e.g.</em> reactive black 5 (RB5), red 198 (RR198) and yellow 145 dyes (RY145). Firstly, the as-synthesized Cu-TiO<sub>2</sub> nanoparticles were characterized using powder X-ray diffraction (PXRD), UV-diffuse reflectance spectroscopy (UV-DRS), high resolution-scanning electron microscopy (HR-SEM) and transmission electron microscopy (TEM) techniques. Furthermore, the photocatalysis experiments were conducted using three reactive dye solutions at different concentrations, pH, duration, <em>etc.</em> The spherulitic Cu-TiO<sub>2</sub> photocatalyst exhibited superior catalytic activity against the dyes and was able to achieve 82, 88 and 90% efficiencies for RB5, RR198 and RY145 dyes, respectively. The kinetics and the reusability parameters were also elaborated with respect to the obtained results. Therefore, Cu-TiO<sub>2</sub> spherulites are professed to be effectual photocatalyst materials for industrial scale dye degradation.</p> ER -