Recombination pathways in the Degussa P25 formulation of TiO(sub 2): Surface versus lattice mechanisms

Article Abstract:

The charge migration between electron trapping sites within the mixed-phase titania photocatalyst Degussa P25 was studied. The findings indicate that in mixed-phase TiO(sub 2) such as Degussa P25, photogenerated holes are trapped exclusively on the particle surface, while photogenerated electrons are trapped within the nanoparticle lattice.

Titanium dioxide, Photochemistry, Chemical properties

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Pyrrole as a probe molecule for characterization of basic sites in ZSM-5: A combined FTIR spectroscopy and computational study

Article Abstract:

The interaction of pyrrole with alkali metal ion exchange ZSM-5 is studied. The computational hybrid quantum mechanics/ interatomic potential function method describing the role of the aluminum framework content and aluminum distribution, pyrrrole coverage, cation size, and cation coordination type is presented.

Observations, Alkali metals, Chemical reactions, Pyrrole, Pyrroles

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