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Low temperature hydrothermal synthesis of monodispersed flower-like titanate nanosheets
Authors:Jaturong Jitputti  Thitima Rattanavoravipa  Surawut Chuangchote  Sorapong Pavasupree  Yoshikazu Suzuki  Susumu Yoshikawa
Affiliation:1. Institute of Advanced Energy, Kyoto University, Uji, Kyoto, 611-0011, Japan;2. Department of Materials and Metallurgical Engineering, Faculty of Engineering, Rajamangala University of Technology Thanyaburi, Klong 6, Pathumthani, 12110, Thailand
Abstract:Monodispersed flower-like titanate superstructure was successfully prepared by simple hydrothermal process without any surfactant or template. N2-sorption analysis, scanning electron microscopy (SEM), and X-ray diffraction (XRD) observation of as-synthesized product revealed the formation of flower-like titanate with diameter of about 250–450 nm and BET surface area (SBET) of 350.7 m2 g?1. Upon thermal treatment at 500 °C, the titanate nanosheets were converted into anatase TiO2 with moderate deformation of their structures. The as-prepared flower-like titanate showed high photocatalytic activity for H2 evolution from water splitting reaction. Moreover, the sample heat treated at 500 °C exhibited higher photocatalytic activity than that of commercial TiO2 anatase powder (ST-01).
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