Synthesis and characterization of ligand stabilized CdS-Trititanate composite materials for visible light-induced photocatalytic water splitting.

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TitleSynthesis and characterization of ligand stabilized CdS-Trititanate composite materials for visible light-induced photocatalytic water splitting.
Publication TypeJournal Article
Year of Publication2013
JournalInternational Journal of Hydrogen Energy
Volume38
Issue6
Pagination2656 - 2669
AuthorsParayil, Sreenivasan Koliyat, Jonas Baltrusaitis, Chia-Ming Wu, and Ranjit T. Koodali
PublisherElsevier Ltd.
ISBN Number0360-3199
Keywordscadmium sulfide trititanate composite visible light photocatalytic water splitting
Abstract

We report a facile method for the synthesis of 4-mercaptobenzoic acid (MBA) stabilized CdS-trititanate nanotube (CdS-TNT) composite materials. The resultant materials were well characterized by powder X-Ray Diffraction (XRD), N2 physisorption, Raman spectroscopy, UV-Visible Diffuse Reflectance spectroscopy (DRS), Fourier-Transform Infra-Red (FT-IR) spectroscopy, Photoluminescence (PL) spectroscopy, XPS, Atomic Absorption Spectroscopy (AAS), and Transmission Electron Microscopy (TEM). The photocatalytic performances of these materials were evaluated by monitoring the amt. of hydrogen evolved from water under visible light irradn. The amt. of hydrogen evolved from MBA stabilized CdS-TNT composite materials were higher compared to MBA stabilized CdS, suggesting an important role of the TNT support. The enhanced photocatalytic hydrogen generation in MBA stabilized CdS-TNT composite materials compared to CdS-MBA might have arisen from the effective charge sepn. in CdS-TNT composite materials, which was further supported by PL studies. [on SciFinder(R)]