TY - JOUR
T1 - Effect of hydrothermal reaction time on morphology and photocatalytic activity of H 2 Ti 3 O 7 nanotubes obtained via a rapid synthesis route
AU - Dong, Pengyu
AU - Wang, Yuhua
AU - Liu, Bin
AU - Guo, Linna
AU - Huang, Yongji
AU - Yin, Shu
N1 - Funding Information:
This work is financially supported by the International Sci. & Tech. Cooperation Foundation of Gansu Provincial, China (grant no. 090WCGA903 ), Fundamental Research Funds for the Central Universities (grant no. lzujbky-2010-83 ), and National Science Foundation for Distinguished Young Scholars (grant no. 50925206 ).
PY - 2012/7/1
Y1 - 2012/7/1
N2 - The traditional hydrothermal method for synthesis of H 2 Ti 3 O 7 nanotubes was modified, and the total hydrothermal reaction time of forming a matured network of H 2 Ti 3 O 7 nanotubes was successfully decreased by 50%. The effect of hydrothermal reaction time on morphology and photocatalytic activity of H 2 Ti 3 O 7 nanotubes was investigated and discussed. Various morphologies can be observed in the as-prepared samples with different hydrothermal reaction times. The photocatalytic activity of the as-prepared samples was evaluated for degradation of methyl orange (MO) under simulated solar irradiation. It was found that the sample treated in the hydrothermal condition for 36 h with a matured network of H 2 Ti 3 O 7 nanotubes showed excellent photocatalytic activity. The photocatalytic activity results were discussed in detail. The stronger absorption in the ultraviolet (UV) range, the increasing crystallization of H 2 Ti 3 O 7 phase, and larger surface area and pore volume contributed to the enhancement of photocatalytic activity of the as-prepared samples.
AB - The traditional hydrothermal method for synthesis of H 2 Ti 3 O 7 nanotubes was modified, and the total hydrothermal reaction time of forming a matured network of H 2 Ti 3 O 7 nanotubes was successfully decreased by 50%. The effect of hydrothermal reaction time on morphology and photocatalytic activity of H 2 Ti 3 O 7 nanotubes was investigated and discussed. Various morphologies can be observed in the as-prepared samples with different hydrothermal reaction times. The photocatalytic activity of the as-prepared samples was evaluated for degradation of methyl orange (MO) under simulated solar irradiation. It was found that the sample treated in the hydrothermal condition for 36 h with a matured network of H 2 Ti 3 O 7 nanotubes showed excellent photocatalytic activity. The photocatalytic activity results were discussed in detail. The stronger absorption in the ultraviolet (UV) range, the increasing crystallization of H 2 Ti 3 O 7 phase, and larger surface area and pore volume contributed to the enhancement of photocatalytic activity of the as-prepared samples.
KW - Dispersant
KW - Hydrothermal process
KW - Nanostructures
KW - Photocatalytic degradation
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U2 - 10.1016/j.apsusc.2012.03.164
DO - 10.1016/j.apsusc.2012.03.164
M3 - Article
AN - SCOPUS:84861092426
SN - 0169-4332
VL - 258
SP - 7052
EP - 7058
JO - Applied Surface Science
JF - Applied Surface Science
IS - 18
ER -