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Nanocomposites: Synthesis of Macroporous Calcium Carbonate/Magnetite Nanocomposites and their Application in Photocatalytic Water Splitting (Small 15/2011)
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.201190053
Subject(s) - magnetite , nanocomposite , materials science , calcium carbonate , chemical engineering , photocatalysis , nanoparticle , magnetite nanoparticles , water splitting , catalysis , nanotechnology , composite material , chemistry , magnetic nanoparticles , metallurgy , organic chemistry , engineering
The cover picture shows the formation of highly hydrated and metastable calcium carbonate (CaCO 3 ·6H 2 O) crystals containing carboxylated dextran‐stabilized magnetite (Fe 3 O 4 ) nanoparticles. These crystals are microwave heated, the bound water and magnetite particles both acting as microwave absorbers. The water present is rapidly expelled as steam to form remarkable open‐framework CaCO 3 supports, decorated throughout with attached magnetite nanoparticles. These porous composite structures can act as functional catalysts, for example, as a self‐buffering co‐catalyst for visible light‐driven water oxidation. For more information, please read the Communication “Synthesis of Macroporous Calcium Carbonate/Magnetite Nanocomposites and their Application in Photocatalytic Water Splitting” by D. Walsh, F. Meldrum, and co‐workers, beginning on page 2168 .