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Morphology Dependence of Photocatalytic Activity of TiO 2 Nanostructure Prepared through Microwave Hydrothermal Process
Author(s) -
Lin KaiLun,
Mai FuDer,
Chan YouCheng,
Chung JenChieh,
Lin KouMin,
Yu ChungChin,
Liao MingYuan,
Li FengYin
Publication year - 2012
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201100522
Subject(s) - nanorod , photocatalysis , chemistry , hydrothermal circulation , nanostructure , scanning electron microscope , oxalic acid , chemical engineering , nanotechnology , electron acceptor , specific surface area , microwave , hydrothermal synthesis , materials science , inorganic chemistry , photochemistry , catalysis , organic chemistry , composite material , physics , quantum mechanics , engineering
Five different morphologies selectively synthesized through a microwave hydrothermal route in order to determine the dependence of degradation efficiency on TiO 2 morphologies. These five morphologies include nanosphere, nanotube, hollow sphere, nanorod and granule‐like particle. Scanning electron microscopy, X‐ray diffraction and Brunauer‐Emment‐Teller methods were used to characterize the morphologies, crystalline structures, and specific surface area of these nanostructured TiO 2 . Oxidants were used as sacrificial electron acceptor to accelerate the degradation. The degradation mechanism of oxalic acid on the surface of TiO 2 influenced by oxidants was discussed.