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Bubble‐Templated and Flow‐Controlled Synthesis of Macroscopic Silica Tubes Supporting Zinc Oxide Nanostructures
Author(s) -
Pagano Jason J.,
Bánsági Tamás,
Steinbock Oliver
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200803203
Subject(s) - bubble , zinc , materials science , nanostructure , aqueous solution , luminescence , diffraction , silicate , oxide , rhodamine b , chemical engineering , nanotechnology , optics , photocatalysis , chemistry , metallurgy , optoelectronics , catalysis , mechanics , organic chemistry , physics , engineering
Macrotubes with nanostructures are formed at rates of cm s −1 when aqueous zinc sulfate is injected into a silicate solution and a gas bubble is pinned to the reaction zone. Straight, long (>10 cm), and hollow structures with diameters of 500 μm can be grown, which upon heating are luminescent, and can photodegrade rhodamine B (RhB). The presence of ZnO on the interior surface is confirmed by electron and X‐ray diffraction.