TY - JOUR
T1 - Heterostructured visible-light-active photocatalyst of chromia- nanoparticle-layered titanate
AU - Kim, Tae Woo
AU - Hur, Su Gil
AU - Hwang, Seong Ju
AU - Park, Hyunwoong
AU - Choi, Wonyong
AU - Choy, Jin Ho
PY - 2007/1/22
Y1 - 2007/1/22
N2 - An efficient visible-light active photocatalyst of porous CrO x-Ti1.83O4 nanohybrid with a 1:1 type ordered heterostructure is synthesized through a hybridization between a chromia cluster and exfoliated titanate nanosheets. The present nanohybrids are found to have a large surface area (ca. 250-310 m2 g-1) and an intense absorption of visible light, ascribable, respectively, to the formation of a porous structure and the hybridization of titanate with narrow-bandgap chromium oxide. After the calcination at 400°C, the nanohybrid shows an enhanced photocatalytic activity to effectively decompose organic compounds under the irradiation of visible light (λ > 420 nm). The present study highlights the exfoliation-restacking route as a very powerful way to develop efficient visible-light-harvesting photocatalysts with excellent thermal stability.
AB - An efficient visible-light active photocatalyst of porous CrO x-Ti1.83O4 nanohybrid with a 1:1 type ordered heterostructure is synthesized through a hybridization between a chromia cluster and exfoliated titanate nanosheets. The present nanohybrids are found to have a large surface area (ca. 250-310 m2 g-1) and an intense absorption of visible light, ascribable, respectively, to the formation of a porous structure and the hybridization of titanate with narrow-bandgap chromium oxide. After the calcination at 400°C, the nanohybrid shows an enhanced photocatalytic activity to effectively decompose organic compounds under the irradiation of visible light (λ > 420 nm). The present study highlights the exfoliation-restacking route as a very powerful way to develop efficient visible-light-harvesting photocatalysts with excellent thermal stability.
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U2 - 10.1002/adfm.200600022
DO - 10.1002/adfm.200600022
M3 - Article
AN - SCOPUS:33846686385
SN - 1616-301X
VL - 17
SP - 307
EP - 314
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 2
ER -