Sunlight-driven charge separation for a heterojunction of nano-pyramidal CuWO4-MOF modified TiO2 nanoflakes for photocatalytic degradation of ciprofloxacin

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dc.contributor.authorMishra, Ajay Kumar
dc.contributor.authorMabape, Kgaugelo S.
dc.contributor.authorMishra, Shivani Bhardwaj
dc.contributor.authorMoloto, Makwena Justice
dc.date.accessioned2024-11-14T09:59:55Z
dc.date.available2024-11-14T09:59:55Z
dc.date.issued2024
dc.description.abstractThe study presents a breakthrough of a balanced charge separation for heterojunction CuWO4-TiO2 cocatalyst to efficiently enhance visible light photocatalytic degradation of ciprofloxacin (CIP). A solvothermal-synthesized nanopyramid-like CuWO4 semiconductor was assembled before sol–gel treatment with TiO2 precursors to generate CuWO4-TiO2 nanocomposites. The optical, structural, and morphological properties of CuWO4-TiO2 were elucidated using UV–Vis DRS, XRD, FTIR, Raman spectroscopy, and TEM/SEM techniques. The UV–Vis DRS spectroscopy of as-synthesized CuWO4-TiO2 cocatalyst demonstrated enhanced visible light absorbance. The XRD patterns of CuWO4-TiO2 revealed a triclinic phase nanocrystal. The O-Ti–O functionality was confirmed by FTIR spectroscopy. The photoactive bands corresponding to anatase redshift were observed from Raman spectroscopy of CuWO4-TiO2 nanocomposite. The PL studies attributed this redshift to the elevated extra energy bands that aid electron/hole pair charge separation in a co-catalyst heterojunction CuWO4-TiO2 nanocomposite afforded by embedding CuWO4-MOF within TiO2 crystalline.
dc.identifier.citationMabape, K.S., Mishra, S.B., Mishra, A.K. and Moloto, M.J., 2024. Sunlight-driven charge separation for a heterojunction of nano-pyramidal CuWO4-MOF modified TiO2 nanoflakes for photocatalytic degradation of ciprofloxacin. Chemical Papers, 78(15), pp.8417-8432.
dc.identifier.urihttps://doi.org/10.1007/s11696-024-03686-x
dc.identifier.urihttps://hdl.handle.net/10566/19678
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.subjectCiprofloxacin photodegradation
dc.subjectCuWO4 semiconductor
dc.subjectCuWO4-TiO2 nanocomposite
dc.subjectElectron/hole charge pair separation
dc.subjectTiO2 nanoparticles
dc.titleSunlight-driven charge separation for a heterojunction of nano-pyramidal CuWO4-MOF modified TiO2 nanoflakes for photocatalytic degradation of ciprofloxacin
dc.typeArticle

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