Green synthesis of TiO2 nanospheres from isolated Aspergillus eucalypticola SLF1 and its multifunctionality in nanobioremediation of C. I. Reactive Blue 194 with antimicrobial and antioxidant activity

• Published in: Ceramics international Vol. 49; no. 10; pp. 14964 - 14980
• Main Authors: Survase, Avinash Ashok, Kanase, Shivangi Shivraj
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.05.2023
• Subjects: Advanced oxidation process (AOP); Antimicrobial activity; Antioxidant activity; Green synthesis; Photocatalytic property; TiO2 anatase phase; Antimicrobial activity; Green synthesis; TiO2 anatase phase; Photocatalytic property; Antioxidant activity; Advanced oxidation process (AOP)
• ISSN: 0272-8842; 1873-3956
• DOI: 10.1016/j.ceramint.2023.01.079

For synthesis of titanium dioxide (TiO2) nanoparticles (NPs), Green methods have been proven to be more efficient than several physiochemical methods. This article presents a non-toxic, ecofriendly, cost-effective and a facile route of green synthesis of TiO2 NPs by an isolated fungus Aspergillus eucalypticola SLF1, which exhibits excellent photocatalytic, antimicrobial and antioxidant activity without structural modification done by physicochemical methods. The TiO2 NPs are characterized by UV–Visible spectroscopy, XRD, FTIR, FE-SEM, DLS, TEM, BET, Raman spectroscopy and PL. The mesoporous, anatase phase, with a band gap 3.49 eV observed by BET, XRD. UV–Visible spectral analysis displayed sunlight driven photocatalytic performance against C. I. Reactive Blue 194 by advanced oxidation process. Decolourization and 99.70% degradation within 30 min exhibited pseudo first order kinetic with reaction rate constant 0.1935 min−1 by linear method. These findings are superior physicochemical methods. Ecofriendly degradation was confirmed by UV–Vis. HPLC and LCMS etc and phytotoxic studies.