Ultra-thin film composite mixed matrix membranes incorporating iron(III)-dopamine nanoparticles for CO2 separation

J Kim; Q Fu; JMP Scofield; SE Kentish; GG Qiao

Journal article

Ultra-thin film composite mixed matrix membranes incorporating iron(III)-dopamine nanoparticles for CO2 separation

J Kim, Q Fu, JMP Scofield, SE Kentish, GG Qiao

Nanoscale | Published : 2016

DOI: 10.1039/c5nr08840b

Abstract

Iron dopamine nanoparticles (FeDA NPs) are incorporated into a nanoscale thick polyethylene glycol (PEG) matrix for the first time, to form ultra-thin film composite mixed matrix membranes (UTFC-MMMs) via a recently developed continuous assembly of polymers (CAP) nanotechnology. The FeDA NPs are prepared by in situ nano-complexation between Fe3+ and DA and have a particle size that can be varied from 3 to 74 nanometers by adjusting the molar ratio of DA to Fe3+ ion. The cross-linked selective layer with sub 100 nanometer thickness is prepared by atom transfer radical polymerisation of a mixture of PEG macrocross-linkers and FeDA NPs on top of a highly permeable poly(dimethyl siloxane) (PDMS)..

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University of Melbourne Researchers

Sandra Kentish Author

Greg Qiao Author

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Grants

Awarded by Australian Research Council

Funding Acknowledgements

The authors wish to acknowledge the funding provided by the Australian Government through the CRC program to support this research. The authors also acknowledge the Australian Research Council under the Future Fellowship (FT110100411, G. G. Q.). Q. Fu is the recipient of an Australian Research Council Super Science Fellowship (FS110200025) and the Australia-China Emerging Future Leaders in Low Emissions Coal Technology Fellowship.