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Issue 10, 2017
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Synergetic regulation of CO2 and light for controllable inversion of Pickering emulsions

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Abstract

Manipulating inversion of Pickering emulsions via “green” and “erasable” external stimuli is at the forefront of developing emulsion-templated materials on account of no chemical addition and convenience. Herein, a type of synergetic CO2- and light-triggered Pickering emulsion was constructed using a special emulsifier formulated by poly[2-(diethylamino)ethyl methacrylate] (PDEAEMA)-grafted-polydopamine (PDA) nanoparticles. Taking advantage of the remarkable photothermal-conversion ability of PDA and tunable amphiphilicity of PDEAEMA, water-in-oil (W/O) emulsions stabilized by PDA–PDEAEMA particles could be converted into oil-in-water (O/W) types upon CO2 treatment, and then switched between the W/O type and O/W type reversibly by turning light irradiation on and off. Such controllable emulsion inversion through synergetic CO2 and light stimuli could be applied in temperature-dependent heterogeneous catalysis and separation.

Graphical abstract: Synergetic regulation of CO2 and light for controllable inversion of Pickering emulsions

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Publication details

The article was received on 17 Jun 2017, accepted on 31 Jul 2017 and first published on 31 Jul 2017


Article type: Research Article
DOI: 10.1039/C7QM00275K
Citation: Mater. Chem. Front., 2017,1, 2136-2142
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    Synergetic regulation of CO2 and light for controllable inversion of Pickering emulsions

    Y. Cao, Z. Wang, S. Zhang and Y. Wang, Mater. Chem. Front., 2017, 1, 2136
    DOI: 10.1039/C7QM00275K

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