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Cooperative assembly synthesis of mesoporous SrTiO3 with enhanced photocatalytic properties

机译：具有增强光催化性质的中孔SRTIO3的合作组装合成

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The synthesis of mesoporous SrTiO _(3) by using the cooperative assembly of metal chelate complexes and alkoxysilanes is here presented. The high affinity and intimate mixing between the two precursors fostered the formation, via polycondensation, of interpentrating organic and inorganic polymers. Hence, after calcination and removal of the siliceous phase, aggregates of mesoporous, polycrystalline SrTiO _(3) with interconnected pores of ca. 10 nm and surface areas as high as 240 m ~(2) g ~(?1) were obtained. Systems using different SrTiO _(3) ?:?SiO _(2) molar ratios were prepared to vary the porosity and microstructure. The templating action of the silica and its effect on the physicochemical properties of the final porous materials were addressed by a multi-technique approach. Finally, the activity of the bulk mesoporous SrTiO _(3) systems was exemplarily demonstrated by photodegradation tests of methylene blue under UV light. The dye conversion progressively increased with the content of silica template, proving the higher activity of the proposed mesoporous materials.
机译：这里介绍了使用金属螯合物络合物和烷氧基硅烷的协同组装的介孔SRTIO _（3）的合成。两种前体之间的高亲和力和紧密混合培养了渗透性有机和无机聚合物的形成，通过缩聚。因此，在煅烧和去除硅质相后，具有互联孔的介孔，多晶硅β聚集体，具有互连的Ca.获得高达240m〜（2）g〜（α1）的10nm和表面区域。使用不同SRTIO _（3）的系统？：αSiO_（2）制备摩尔比以改变孔隙率和微观结构。通过多功能方法解决了二氧化硅的模板和其对最终多孔材料物理化学性质的影响。最后，通过UV光下的亚甲蓝的光降解试验示例性地证明了本体介孔SRTIO _（3）系统的活性。用二氧化硅模板的含量逐渐增加染料转化，证明了所提出的中孔材料的更高活性。

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