High photocatalytic activity of Cu2O embedded in hierarchically hollow SiO2 for efficient chemoselective hydrogenation of nitroarenes

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dc.contributor.authorYin, Zhengliang
dc.contributor.authorXiao, Yingguan
dc.contributor.authorWan, Xiong
dc.contributor.authorJiang, Ying
dc.contributor.authorChen, Gang
dc.contributor.authorShi, Qingye
dc.contributor.authorCao, Shunsheng
dc.date.accessioned2021-01-07T12:50:12Z
dc.date.available2021-01-07T12:50:12Z
dc.date.issued2020-10-20
dc.description.abstractPhotocatalytic organic conversion is a crucial process in the hydrogenation of nitroarenes, but harsh reaction conditions such as long reaction time, high hydrogen pressure, and organic medium still need to be considerably overcome under visible-light irradiation. Here, we have constructed a transition metal oxide photocatalyst by embedding low-cost Cu2O with strong visible-light absorption into hierarchically hollow SiO2 sphere (SiO2-Cu2O@SiO2) that can suppress the escape of photogenerated atomic hydrogen and promote the contact probability between hydrogen atom and nitroarene molecules due to confinement effect. Remarkably, the SiO2-Cu2O@SiO2 photocatalyst can exhibit efficient chemoselectivity toward the hydrogenation of various nitroarenes in an aqueous system at ambient conditions, successfully working out the requirement of strict hydrogenation conditions, especially for organic medium over almost all of the reported photocatalysts. Notably, quantitative aniline can be produced for the visible-light catalytic reduction of nitroarenes, suggesting a considerable potential for industrial applicationen_UK
dc.identifier.citationYin Z, Xiao Y, Wan X, et al., (2020) High photocatalytic activity of Cu2O embedded in hierarchically hollow SiO2 for efficient chemoselective hydrogenation of nitroarenes. Journal of Materials Science, Volume 56, February 2021, pp. 3874-3886en_UK
dc.identifier.issn0022-2461
dc.identifier.urihttps://doi.org/10.1007/s10853-020-05449-x
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16137
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectHydrogenation of nitroarenesen_UK
dc.titleHigh photocatalytic activity of Cu2O embedded in hierarchically hollow SiO2 for efficient chemoselective hydrogenation of nitroarenesen_UK
dc.typeArticleen_UK

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