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Evidence of Upconversion Luminescence Contribution to the Improved Photoactivity of Erbium doped TiO2 System

ICMS

S. Obregón and G. Colón Chemical Communications 2012, Vol. 48, 7865–7867

Er(3+)-TiO(2) synthesized by surfactant free hydrothermal method exhibit good photoactivities under sun-like excitation for the degradation of phenol. The presence of Er(3+) does not affect significantly to the structural and morphological features of the TiO(2). The best photocatalytic performance was attained for the samples with 2%wt of Er. Different photocatalytic runs pointed out that the incorporation of the Er(3+) cation would be the responsible of the enhanced photocatalytic activity participating in different mechanisms under UV and NIR excitation.

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