摘要
发展基于异相半导体光催化的高选择性光化学合成方法是化学面临的最大挑战之一。通过介孔二氧化硅壳层对光催化底物的选择性通过,克服依靠自由基氧化过程的半导体光催化过程无选择性的缺陷,一直相关选择性光催化研究所关注的重点领域。然而,如何通过简单合成策略实现具备尺寸选择性的复杂异质核壳复合结构的放量合成,一直是制约相关材料应用的关键。我们发展了一锅法构建二氧化钛@二氧化硅核壳纳米结构的简单合成方法,可以实现金属@空心TiO_2@空心SiO_2的复杂纳米结构的放量合成。所构建的具备尺寸选择性光催化纳米结构可直接应用于涂料添加剂。
Architected nanostructures with interior space have attracted enormous attention due to both their esthetic beauty and their potential applications. It is a current dream to develop a template-free, onepot and low-temperature synthetic routes for hetero-architecture in liquid media. In this manuscript, we develop a kind of template-free, low-temperature, and one-pot total synthetic strategy for synthesis of inorganic multi-component hetero-architecture. This synthetic strategy analogous to standard organic reactions used in total synthesis is an important breakthrough in inorganic chemical synthesis. We can achieve 1 kilogram(kg) yield of the TiO2@void@SiO2 core–shell sphere one time by using this synthetic strategy, and its practical applications on NOx removal was investigated.
引文
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