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A Facile Synthesis of Anatase Ni2+ Doped TiO2 Nanorods with Highly Improved Visible-Light Photocatalytic Performance

[ Vol. 17 , Issue. 2 ]

Author(s):

G. Nagaraj*, R.A. Senthil, Rajender Boddula and K. Ravichandaran   Pages 279 - 284 ( 6 )

Abstract:


Objective: Herein, we reported a simple and effective approach to synthesis of pure and Ni2+ doped TiO2 nanorods by a photon-induced method (PIM) followed by calcination at 850 ºC in air atmosphere.

Methods: Basically, the PIM was used to tuning the properties of as-prepared TiO2 photocatalyst. These obtained samples were further characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and UV-visible diffuse reflectance spectroscopy (UV-vis DRS) analysis. XRD results reveals that the both pure TiO2 and Ni doped TiO2 nanorods has anatase phase up to 850°C.

Results: The HR-TEM analysis indicates that doping Ni is favourable to the formation of rod-like TiO2 sample. Also, the observed photocatalytic results demonstrates that the Ni doped TiO2 can be achieved a complete degradation of methylene blue (MB) within 30 min under direct sunlight irradiation as compared to pure TiO2.

Conclusion: Therefore, this work revealing the doped Ni has a good potential to modification of TiO2 with an excellent photocatalytic activity for water treatment applications.

Keywords:

Degradation, methylene blue, Ni doped TiO2 nanorods, photocatalysts, photon induced method, sun-light irradiation.

Affiliation:

Department of Physics, PG Extension Centre, Periyar University, Dharmapuri-636107, Tamil Nadu, College of Materials Science and Engineering, Beijing University of Technology, Beijing-100124, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, Department of Nuclear Physics, University of Madras, Guindy Campus, Chennai

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