Abstract
Abstract An efficient heterogeneous catalyst has been synthesized by anchoring copper complex onto the salicylaldehyde-modified hollow porous nanosphere frameworks (SA-HPNFs-BA), in which SA-HPNFs were firstly prepared by using amino-functionalized HPNFs to react with salicylaldehyde. The final copper complex functionalized hollow porous nanosphere frameworks (Cu-HPNFs-BA) possess the high specific surface area, hierarchically micro-/mesoporous structure and robust organic frameworks. The prepared Cu-HPNFs-BA heterogeneous catalyst shows improved catalytic performance and good recycling stability in selective epoxidation of olefins.
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