Soerja Koesnarpadi, Teguh Wirawan, Mukhamad Nurhadi, W. Wirhanuddin, Yuniar Ponco Prananto, N. Nazarudin, Volkan Degirmenci, Sin Yuan Lai, Hadi Nur
This paper presents the synthesis and characterization of calcium sulfate hemihydrate (CSH)-supported titania (TiO2) catalysts and their application in the environmentally friendly oxidation of styrene to benzaldehyde using hydrogen peroxide (H2O2) as the oxidant. The study explores the catalyst's structure-activity relationship, emphasizing the importance of mesoporous materials for enhanced catalytic performance. The CSH-Titania catalysts were synthesized using fish bone-derived CSH as a support, which aligns with green chemistry principles. Characterization techniques such as Fourier Transform Infra Red (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Brunauer-Emmett-Teller (BET) surface area analysis confirmed the successful impregnation of titania and its catalytic efficiency. The catalysts exhibited high selectivity for benzaldehyde, achieving up to 49.45% conversion of styrene, with benzaldehyde as being the main product. The research highlights that the catalyst’s performance decreased after calcination due to a reduced surface area and pore volume, yet it maintained recyclability across three cycles with minimal lose in selectivity loss. Overall, this study introduces a cost-effective and sustainable approach to styrene oxidation, demonstrating the potential for industrial application in producing high-value chemicals with minimal environmental impact. Copyright © 2024 by Authors, Published by BCREC Publishing Group.
Department of Chemistry, Universitas Mulawarman, Kampus Gunung Kelua, East Kalimantan, Samarinda, 75119, Indonesia; Department of Chemical Education, Universitas Mulawarman, Kampus Gunung Kelua, East Kalimantan, Samarinda, 75119, Indonesia; Chemistry Department, Brawijaya University, East Java, Malang, 65145, Indonesia; Chemical Engineering Department, Universitas Jambi, Indonesia; Chemical Engineering Department, University of Warwick, United Kingdom; School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China; Department of Chemistry, Universitas Negeri Malang, Malang, 65145, Indonesia; Center of Advanced Materials for Renewable Energy (CAMRY), Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia