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\bibitem{Neubert_etal2016} {\textquotedblleft}\textit{Highly efficient rutile TiO$_{2}$ photocatalysts with single Cu(II) and Fe(III) surface catalytic sites}{\textquotedblright}.  Neubert S, Mitoraj D, Shevlin SA, Pulisova P, Heimann M, Du Y, Goh GKL, Pacia M, Krucza{\l}a K, Turner S, Macyk W, Guo ZX, Hocking RK, Beranek R;, Journal of materials chemistry A : materials for energy and sustainability \textbf{4}, 3127 (2016).   http://doi.org/10.1039/c5ta07036h

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