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A Strategy for Separating and Recycling Solid Catalysts Based on the pH-Triggered Pickering-Emulsion Inversion


  • This work was supported by the Natural Science Foundation of China (20903064, 21173137), Program for the Top Young Academic Leaders of Higher Learning Institutions of Shanxi (2011002) and Middle-aged Innovative Talents of Higher Learning Institutions of Shanxi (20120202)


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Turn you inside out: A novel method for performing in situ separation and recycling of submicrometer-sized solid catalysts is developed based on the pH-triggered inversion of Pickering emulsions (see scheme; o=oil, w=water). Solid catalysts can be recycled 36 times without significant loss of activity. The method differs from conventional methods in terms of speed, energy consumption, catalyst separation, and recycling effectiveness.