Polymer-based immobilized Fe2O3–TiO2/PVP catalyst preparation method and the degradation of triclosan in treated greywater effluent by solar photocatalysis

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dc.contributor.authorPragada, S.C.
dc.contributor.authorThalla, A.K.
dc.date.accessioned2026-02-05T09:26:38Z
dc.date.issued2021
dc.description.abstractThe present study involves a novel protocol to develop a ternary composite catalyst for an effective post-treatment technique for greywater. The ternary film of Fe<inf>2</inf>O<inf>3</inf>–TiO<inf>2</inf>/polyvinyl pyrrolidine (PVP) is coated on a glass tube using spray coating with annealing at 320 °C. The structure, thermal, microstructure, and surface properties of the coated film are characterized by X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), and Thermo Gravimetric Analysis (TGA). The scratch hardness of photocatalysts at different Fe<inf>2</inf>O<inf>3</inf>/TiO<inf>2</inf> compositions is investigated based on the width measurement of scratch using FESEM analysis. Results show that at an optimum coating of 5% of Fe<inf>2</inf>O<inf>3</inf>/TiO<inf>2</inf> composition catalytic film, the maximum scratch hardness (7.984 GPa) is obtained. Also, the photocatalyst has the highest cohesive bond strength and wearing resistance. The degradation of triclosan (TCS) in treated greywater, discharged from the anaerobic-aerobic treatment system, is investigated at a lab-scale using a solar photocatalytic reactor. The response surface analysis has been performed from the different sets of experimental trials for various optimal parameters. It is observed that the TCS degradation efficiency of 83.27% has resulted under optimum conditions. © 2021 Elsevier Ltd
dc.identifier.citationJournal of Environmental Management, 2021, 296, , pp. -
dc.identifier.issn3014797
dc.identifier.urihttps://doi.org/10.1016/j.jenvman.2021.113305
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/23026
dc.publisherAcademic Press
dc.subjectCatalysts
dc.subjectCoatings
dc.subjectDegradation
dc.subjectEffluents
dc.subjectField emission microscopes
dc.subjectFilm preparation
dc.subjectFourier transform infrared spectroscopy
dc.subjectHardness
dc.subjectHematite
dc.subjectPhotocatalysis
dc.subjectScanning electron microscopy
dc.subjectSurface analysis
dc.subjectThermogravimetric analysis
dc.subjectField emission scanning electron microscopy
dc.subjectGreywater
dc.subjectImmobilized fe2O3–TiO2/polyvinyl pyrrolidine catalyst
dc.subjectPolymer based
dc.subjectPolyvinyl pyrrolidine
dc.subjectScratch hardness
dc.subjectSolar photocatalysis
dc.subjectSpray coating
dc.subjectTriclosan
dc.subject]+ catalyst
dc.subjectTitanium dioxide
dc.subjectferric oxide
dc.subjectglass
dc.subjectnanofilm
dc.subjectpolymer
dc.subjectpovidone
dc.subjecttitanium dioxide
dc.subjecttriclosan
dc.subjectpolyvinyl derivative
dc.subjectpyrrolidine derivative
dc.subjecttitanium
dc.subjectcatalysis
dc.subjectcatalyst
dc.subjectFTIR spectroscopy
dc.subjectphotodegradation
dc.subjectshifting cultivation
dc.subjectthermogravimetry
dc.subjectArticle
dc.subjectbioremediation
dc.subjectchemical composition
dc.subjectcoating thickness
dc.subjectcontact time
dc.subjectcrystal structure
dc.subjectdechlorination
dc.subjectdecomposition
dc.subjectdifferential thermal analysis
dc.subjectecotoxicity
dc.subjectecotoxicology
dc.subjecteffluent
dc.subjectelectrospray mass spectrometry
dc.subjectevaporation
dc.subjectfield emission scanning electron microscopy
dc.subjectfilm coating
dc.subjectfilm thickness
dc.subjecthardness
dc.subjecthydroxylation
dc.subjectlight absorption
dc.subjectliquid chromatography-mass spectrometry
dc.subjectmechanical stimulus test
dc.subjectobserved association rate constant
dc.subjectphotocatalysis
dc.subjectphysical chemistry
dc.subjectprocess optimization
dc.subjectreaction analysis
dc.subjectreactor operation
dc.subjectresponse surface method
dc.subjectsolar radiation
dc.subjectspray coating
dc.subjectsurface property
dc.subjectultrasound
dc.subjectwaste water management
dc.subjectX ray diffraction
dc.subjectCatalysis
dc.subjectPolymers
dc.subjectPolyvinyls
dc.subjectPyrrolidines
dc.subjectTitanium
dc.titlePolymer-based immobilized Fe2O3–TiO2/PVP catalyst preparation method and the degradation of triclosan in treated greywater effluent by solar photocatalysis

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