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\bibitem{VanEynde_etal2013} {\textquotedblleft}\textit{Diatom silica-titania materials for photocatalytic air purification}{\textquotedblright}. Van Eynde E, Tytgat T, Smits M, Verbruggen S, Hauchecorne B, Blust R, Lenaerts S, Communications in agricultural and applied biological sciences \textbf{1}, 141 (2013)

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