Abda Nurhaqi, Badrut Tamam Ibnu Ali, Riki Subagyo, Herlina Rasyid, Rani Maharani, Christina Wahyu Kartikowati, Dewi Umaningrum, Sri Fatmawati, Ratna Ediati, Triyanda Gunawan, Retno Asih, Syafsir Akhlus, Yuly Kusumawati
CuFe2O4/N-TiO2 photocatalyst was used for the removal of methylene blue (MB) dye under visible light. Various characterisation techniques were performed, including X-ray diffraction (XRD), UV Diffuse Reflectance Spectroscopy (UV-DRS), scanning electron microscopy (SEM) and vibrating-sample magnetometry (VSM). UV-DRS results showed a reduced TiO2 bandgap after nitrogen doping and addition of CuFe2O4. The photocatalytic removal of MB was achieved 98.7 % after 180 min irradiation for nitrogen doped TiO2 (N-TiO2). The addition of CuFe2O4 improved the magnetic properties. The optimal composition of 5 % CuFe2O4/N-TiO2, exhibited good magnetic properties and 97.56 % of MB removal efficiency. The 5 % CuFe2O4/N-TiO2 also exhibit maintaining over 90 % of MB removal efficiency across three cycles process. The proposed degradation pathway was presented based on Liquid Chromatography Mass Spectrophotometer (LCMS). Based on the obtained results, 5 % CuFe2O4/N-TiO2 can be proposed as photocatalyst for MB removal and its magnetic properties is beneficial for quick separation from the solution after photocatalytic process. © 2025 The Authors
Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Kampus ITS Keputih-Sukolilo, East Java, Surabaya, 60111, Indonesia; Research Center for Process and Manufacturing Industry Technology, National Research and Innovation Agency, 625 Building, Technology Energy Cluster, PUSPIPTEK, South Tangerang, Banten, 15314, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Hasanuddin University, South Sulawesi, Makassar, 90245, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jatinangor, West Java, Sumedang, 45363, Indonesia; Department of Chemical Engineering, Brawijaya University, East Java, Malang, 65145, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Lambung Mangkurat Jl. Ahmad Yani Km. 35, 8 Banjarbaru, East Kalimantan, 70714, Indonesia; Department of Physics, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, Indonesia
