Ultra-fast photocatalytic and dye-sensitized solar cell performances of mesoporous TiO2 nanospheres

被引：18
作者：
Archana, J. [1 ,2 ]
Harish, S. [3 ]
Kavirajan, S. [2 ]
Navaneethan, M. [1 ,2 ]
Ponnusamy, S. [2 ]
Shimomura, M. [3 ]
Muthamizhchelvan, C. [2 ]
Ikeda, H. [3 ]
Hayakawa, Y. [3 ]
机构：
[1] SRM Univ, SRM Res Inst, Chennai 603203, Tamil Nadu, India
[2] SRM Univ, Dept Phys & Nanotechnol, Ctr Mat Sci & Nano Devices, Kattankulathur 603203, Tamil Nadu, India
[3] Shizuoka Univ, Elect Res Inst, Naka Ku, 3-5-1 Johoku, Hamamatsu, Shizuoka 4328011, Japan
来源：
APPLIED SURFACE SCIENCE | 2018年 / 449卷
关键词：
TiO2; Semiconductors; Carbon; Photocatalysis; Dye-sensitized solar cells; GREEN SYNTHESIS; POROUS TIO2; NANOPARTICLES; FACETS; MICROSPHERES;
D O I：
10.1016/j.apsusc.2018.01.105
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Mesoporous anatase TiO2 nanospheres with good interconnectivity were prepared by solvothermal method using carbon spheres as a template. FESEM and TEM images revealed the formation of mesoporous TiO2 nanospheres with the sizes of 150-200 nm. It was composed of nanoparticles in the range of 5-10 nm. XRD patterns revealed the anatase phase. Raman and X-ray photoelectron spectroscopy analyses ascertained that the carbon spheres acted only as a template to obtain the mesoporous TiO2 nanospheres. The formation mechanism of the mesoporous TiO2 nanospheres was discussed. The photocatalytic performance of the mesoporous TiO2 nanospheres with different dosage on Methylene Blue (MB) as a model pollutant was carried out under visible light irradiation. The mesoporous TiO2 nanospheres exhibited ultra-fast degradation of MB within 1.5 min. It was three times higher than that of commercial P25 TiO2 photocatalyst. TiO2 mesoporous nanospheres were used as a photoanode material for the fabrication of dye sensitized solar cell (DSSC) using N719 dye as a sensitizer and device showed an efficiency of 4.65%. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：729 / 735
页数：7
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