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AuthorMohapatra, Lagnamayee
AuthorPatra, Dhananjaya
AuthorParida, Kulamani
AuthorZaidi, Syed Javaid
Available date2023-07-16T11:28:19Z
Publication Date2017-01-18
Publication NameEuropean Journal of Inorganic Chemistry
Identifierhttp://dx.doi.org/10.1002/ejic.201601191
CitationMohapatra, L., Patra, D., Parida, K., & Zaidi, S. J. (2017). Enhanced photocatalytic activity of a molybdate‐intercalated iron‐based layered double hydroxide. European Journal of Inorganic Chemistry, 2017(3), 723-733.‏
ISSN14341948
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85010651498&origin=inward
URIhttp://hdl.handle.net/10576/45659
AbstractHerein, we report the design and successful fabrication of new Mg/Fe layered double hydroxides (LDHs) with different Mg/Fe molar ratios (2:1, 3:1, and 4:1) by a coprecipitation method. The prepared Mg/Fe (4:1) LDH sample with high crystallinity and phase purity was further modified by intercalation with molybdate anions. The structural, morphological, optical, electrochemical, and photocatalytic properties of the prepared catalysts were subsequently examined. In comparison with that of the Mg/Fe (4:1) LDH, the photocatalytic activity of the Mg/Fe (4:1) material with molybdate anions intercalated in the interlayer for the degradation of methyl orange (MO) was enhanced, and the processed followed apparent first-order kinetics. Radical-trapping experiments demonstrated that h+, OH·radicals, and O2–·radicals are the dominant reactive species for pollutant degradation. The highest photocatalytic activity of molybdate-intercalated LDH is attributed mainly to the combined effects of its layered structure with MgII–O–FeIIIlinkages and intercalated molybdate anions, which act as visible-light absorption centers towards higher wavelengths and can promote charge-carrier trapping as well as hinder the photogenerated electron–hole recombination. The time-resolved photoluminescence (TRPL) spectra demonstrated the prolonged charge separation under visible light.
Languageen
PublisherWiley-VCH Verlag
SubjectIron
Layered compounds
Magnesium
Molybdenum
Photochemistry
TitleEnhanced Photocatalytic Activity of a Molybdate-Intercalated Iron-Based Layered Double Hydroxide
TypeArticle
Pagination723-733
Issue Number3
Volume Number2017
dc.accessType Abstract Only


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