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 |
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| Affiliation: | 1. Rayat Institute of Research and Development, Satara, 415 001, India;2. Department of Microbiology, Yashavantrao Chavan Institute of Science, Lead Institute, Karmaveer Bhaurao Patil University, Satara, Maharashtra, 415 001, India;1. Mössbauer Research Group, Department of Physics, S.B. College, Changanassery, Kerala, 686101, India;2. Mahatma Gandhi University, Kottayam, Kerala, 686560, India;3. Smart Materials Section, Materials Characterization Group, Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, 603102, India;4. Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094, India;1. Institute of Silicate Chemistry of the Russian Academy of Sciences ISC RAS, Makarova Emb. 2, Saint Petersburg, 199034, Russia;2. Institute of Earth Sciences, Saint Petersburg State University, Universitetskaya Emb. 7/9, Saint Petersburg, 199034, Russia;3. Chemistry Department, Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russia;1. Department of Metallurgy Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore, M.P, 453552, India;2. Centre for Advanced Electronics, Indian Institute of Technology Indore, Simrol, Indore, M.P, 453552, India |
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| Abstract: | 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. |
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| Keywords: | Green synthesis Photocatalytic property Advanced oxidation process (AOP) Antioxidant activity Antimicrobial activity |
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