Photocatalytic performance of Fe-doped TiO2 nanoparticles under visible-light irradiation

被引：213
作者：
Ali, T. [1 ]
Tripathi, P. [1 ]
Azam, Ameer [1 ]
Raza, Waseem [3 ]
Ahmed, Arham S. [2 ]
Ahmed, Ateeq [1 ]
Muneer, M. [3 ]
机构：
[1] Aligarh Muslim Univ, Dept Appl Phys, Aligarh 202002, Uttar Pradesh, India
[2] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India
[3] Aligarh Muslim Univ, Dept Chem, Aligarh 202002, Uttar Pradesh, India
来源：
MATERIALS RESEARCH EXPRESS | 2017年 / 4卷 / 01期
关键词：
Fe-doped TiO2 nanoparticles; XRD; Raman; TEM; photoluminescence; photocatalytic activity; methylene blue; SOLVOTHERMAL SYNTHESIS; SOL-GEL; ANATASE; DEGRADATION; TITANIA; RUTILE; FILMS;
D O I：
10.1088/2053-1591/aa576d
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present work focuses on the synthesis, characterization and photocatalytic activity of a nanosized Fe-doped TiO2 photocatalyst. The samples were synthesized by the sol-gel method and characterized by using techniques such as x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive x-ray spectroscopy (EDS), UV-visible spectroscopy, photoluminescence (PL) spectroscopy, Raman spectroscopy and Fouriertransform infrared (FTIR). The powder XRD spectra revealed that the synthesized samples are pure and crystalline in nature and show a tetragonal anatase phase of TiO2. The Raman spectroscopy also confirmed the formation of an anatase phase structure in both pure and Fe-doped TiO2 nanoparticles (NPs). The UV-visible and PL spectra illustrated the red shift in Fe-doped TiO2 NPs. The FTIR spectra indicated the vibrational band of the Ti-O lattice. The photocatalytic experimental results demonstrate that Fe-doped TiO2 NPs effectively degrade MB under visible-light illumination. Interestingly, the prepared TiO2 NPs with a dopant concentration of 3.0 mole% showed the maximum photocatalytic activity under investigation.
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页数：12
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