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All Journal Bulletin of Chemical Reaction Engineering & Catalysis
Ferrah, Nacer
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Chemical Engineering, Chemistry & Bioengineering Chemistry

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Hybrid TiO₂@SiO₂ Green Hydrogel Nanocatalyst for High-efficiency Photocatalytic Oxidation of Ciprofloxacin under UV Irradiation: Experimentation and RSM Optimization Mansour, Riad; Ferrah, Nacer; Fithriyah, Nurul Hidayati; Purnawan, Irfan; Chabane, Mustapha; Zahouane, Fadila; Melkaoui, Chikh
Bulletin of Chemical Reaction Engineering & Catalysis 2026: Just Accepted Manuscript and Article In Press 2026
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20615

Abstract

A TiO₂@SiO₂ hydrogel nanocomposite was synthesized via a green sol-gel route for the photocatalytic degradation of ciprofloxacin using a UVA/H2O2 system. The catalyst was optimized via RSM (response surface methodology), identifying UVA irradiation (365 nm) and pH 5.6 as key parameters, achieving >89% degradation within 180. Characterisation confirmed homogeneous TiO₂ dispersion within a porous SiO₂ matrix. Kinetics followed a pseudo-first-order Langmuir–Hinshelwood model, and the catalyst retained high activity over five reuse cycles. This study introduces a UVA-optimized, RSM-guided photocatalytic system using a green-synthesized TiO₂@SiO₂ hydrogel –distinguished by its integrated process design, operational simplicity, and focus on solar-compatible UVA rather than conventional UVC-driven TiO2@SiO2 systems. 
Co-Authors Chabane, Mustapha Irfan Purnawan Purnawan Mansour, Riad Melkaoui, Chikh Nurul Hidayati Fithriyah Zahouane, Fadila