Rhodamine B Removal of TiO2@SiO2 Core-Shell Nanocomposites Coated to Buildings

Rhodamine B Removal of TiO2@SiO2 Core-Shell Nanocomposites Coated to Buildings

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Surface application of photocatalyst in cement-based materials could endow it with photocatalytic properties, however, the weak adhesion between photocatalyst coatings and the substrates may result in poor durability in outdoor environments.In this study, TiO2@SiO2 core-shell nanocomposites with different coating thicknesses canon imageclass mf227dw were synthesized by varying the experiment parameters.The results indicate that SiO2 coatings accelerated the rhodamine B removal to a certain extent, owing to its high surface area; however, more SiO2 coatings decreased its photocatalytic efficiencies.The cement matrix treated with TiO2@SiO2 core-shell nanocomposites showed good photocatalytic efficiency and durability after harsh weathering bostik universal primer pro processing.A reaction mechanism was revealed by the reaction of TiO2@SiO2 nanocomposites with Ca(OH)2.