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Hierarchical Nanomaterials: Smart Microcapsules Encapsulating Reconfigurable Carbon Nanotube Cores (Adv. Funct. Mater. 5/2010)
Author(s) -
Choi Won San,
Yang Hye Min,
Koo Hye Young,
Lee HaJin,
Lee Young Boo,
Bae Tae Sung,
Jeon Il Cheol
Publication year - 2010
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201090010
Subject(s) - materials science , nanomaterials , carbon nanotube , sonication , nanotechnology , oxide , chemical engineering , capsule , metallurgy , botany , engineering , biology
Heavy metal ion removal is demonstrated using carbon nanotubes (CNTs) surrounded by iron oxide microcapsules by W. S. Choi on page 820 . The CNTs conglomerate and form a core inside the capsule upon exposure to high temperature, while they scatter when they are subjected to mild sonication. These hierarchical structures can capture lead and chromium ions, which can later be desorbed by exposure to low pH conditions.