Improvement of photocatalytic activity of metal sulfide by organic dye for H2 formation from water

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    Abstract

    Photocatalytic activity of Pt-loaded metal sulfide with organic dye for the H2 production from aqueous solution containing Na 2S-K2SO3 as a sacrificial reagent was investigated. Hydrogen formation rate was improved by the dyeadsorption onto SnS photocatalyst by using Cr-tetraphenylporphyrin (Cr-TPP). SnS loaded with Pt exhibits H2 formation up to 800 nm when Na2S and K 2SO3 is used as sacrificial reagent, and it was found that the H2 formation rate is much improved by the adsorption of Cr-TPP. In particular, the dye-adsorption effect was significantly appeared in the wavelength range less than 500 nm, which is in good agreement with the Soret band absorption of Cr-TPP.

    Original languageEnglish
    Pages (from-to)125-127
    Number of pages3
    JournalElectrochemistry
    Volume76
    Issue number2
    DOIs
    Publication statusPublished - Jan 1 2008

    All Science Journal Classification (ASJC) codes

    • Electrochemistry

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