N.P. Putri, D. Amalia, D.H. Kusumawati, E. Suaebah, E.E. Yunata, S. Falina
The textile industry produces wastewater from synthetic dyes, such as Methylene Blue. This pollutant makes a significant contribution to global environmental pollution. A serious risk to human health and the aquatic ecosystem can occur from Methylene Blue toxicity and non-biodegradability. Titanium dioxide, well-known as a photocatalyst, offers a promising candidate for dye degradation under ultraviolet light due to its chemical stability and efficiency. However, the efficiency of Titanium dioxide can be limited by its wide band gap. To establish this, a Titanium dioxide /Polyaniline composite is expected to improve photocatalytic efficiency by reducing the band gap and enhancing light absorption. This study prepared a Titanium dioxide /Polyaniline composite through in situ polymerization, varying the mass of Titanium dioxide. The photocatalytic performance of these composites was evaluated by degrading methylene blue under Ultraviolet light. Characterization of Titanium dioxide/Polyaniline confirmed success based on X-ray diffraction, Fourier Transform Infrared Spectroscopy, and Scanning Electron Microscopy results. The composite reform has uniform dispersion and enhanced structural properties. The photocatalytic test confirmed that increasing the mass of The Titanium dioxide in the composite improves the degradation rate, nearly 100% for both low and high Methylene Blue concentrations within 180 min. The findings suggest that using the photocatalyst technique, Titanium dioxide /Polyaniline composites are a promising candidate for sustainable wastewater treatment. © The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University 2026.
Department of Physics, Universitas Negeri Surabaya, Surabaya, Indonesia; Department of Physics, Universitas Airlangga, Surabaya, Indonesia; Collaborative Microelectronic Design Excellence Center, Universiti Sains Malaysia, Penang, Malaysia
