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The enhanced photocatalytic activities of TiO2 nanobelts prepared by hydrothermal method
Ferroelectrics  (IF0.62),  Pub Date : 2021-10-11, DOI: 10.1080/00150193.2021.1905759
Jiang Jiu-xing, Sun Yu, Li Zhao-zhao, Wang Shu

Abstract

In this paper, the hydrothermal method was employed to synthesize TiO2 nanobelts, which performed enhanced photocatalytic activity compared with TiO2 nanoparticles. The structures, morphologies and surface chemical components of the as-prepared samples were systemically characterized, as well as the UV-Vis absorption properties. Also, the photocatalytic properties of the catalysts were evaluated through degrading MB dye under the simulated solar-driven irradiation. From the comparison, TiO2 nanobelts sample behaved a better photocatalytic degradation of 20 mg/L MB solution within 120 min, more than 0.2 times of TiO2 nanoparticles, which was attributed to more surface oxygen vacancies generated in TiO2 nanobelts during their synthesis process. This finding enables TiO2 nanobelts the feasibility to be used or to be constructed heterostructures applying in the field of water pollutant decontaminations.