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Synthesis of Macroporous Calcium Carbonate/Magnetite Nanocomposites and their Application in Photocatalytic Water Splitting
Author(s) -
Walsh Dominic,
Kim YiYeoun,
Miyamoto Akina,
Meldrum Fiona C.
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201100268
Subject(s) - vaterite , nanocomposite , calcium carbonate , photocatalysis , crystallite , magnetite , carbonate , materials science , fabrication , chemical engineering , nanoparticle , nanotechnology , mineralogy , catalysis , chemistry , aragonite , metallurgy , organic chemistry , composite material , medicine , alternative medicine , pathology , engineering
Fabrication of a new macroporous calcium carbonate nanocomposite is demonstrated using calcium carbonate hexahydrate . Magnetite nanoparticles are incorporated into the highly hydrated carbonate precursor and microwaving is used to convert the crystals into polycrystalline, vaterite blocks with open nanoarchitectures and retention of the original dimensions. Co‐catalyst activity of the composite material is demonstrated for photocatalytic water oxidations.