Enhanced visible light photocatalytic activity of Cr3+-doped anatase TiO2 nanoparticles synthesized by sol–gel method

H. M. Yadav; T. V. Kolekar; A. S. Barge; N. D. Thorat; S. D. Delekar; B. M. Kim; B. J. Kim; J. S. Kim

doi:10.1007/s10854-015-3785-6

Enhanced visible light photocatalytic activity of Cr³⁺-doped anatase TiO₂ nanoparticles synthesized by sol–gel method

H. M. Yadav, T. V. Kolekar, A. S. Barge, N. D. Thorat, S. D. Delekar, B. M. Kim, B. J. Kim, J. S. Kim

Research output: Contribution to journal › Article › peer-review

Abstract

The photocatalytic degradation of methylene blue (MB) has been investigated under visible light irradiation with an incandescent light bulb using chromium doped TiO₂ nanoparticles. Cr–TiO₂ photocatalysts were successfully synthesized by sol–gel method at room temperature and characterized by X-ray diffraction (XRD), UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS), Raman spectroscopy, Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy. The band gap energy of the nanoparticles were estimated using UV–Vis DRS technique. With increasing Cr³⁺ cations content into TiO₂ host lattice, the optical absorption band tuned in the visible region. XRD and TEM results reveal uniform and crystalline anatase TiO₂ nanoparticles. The photodegradation of MB indicated that the photocatalytic activity of pure TiO₂ nanoparticles increased with increasing Cr³⁺ cations concentration.

Original language	English
Pages (from-to)	526-534
Number of pages	9
Journal	Journal of Materials Science: Materials in Electronics
Volume	27
Issue number	1
DOIs	https://doi.org/10.1007/s10854-015-3785-6
Publication status	Published - 1 Jan 2016
Externally published	Yes

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title = "Enhanced visible light photocatalytic activity of Cr3+-doped anatase TiO2 nanoparticles synthesized by sol–gel method",

abstract = "The photocatalytic degradation of methylene blue (MB) has been investigated under visible light irradiation with an incandescent light bulb using chromium doped TiO2 nanoparticles. Cr–TiO2 photocatalysts were successfully synthesized by sol–gel method at room temperature and characterized by X-ray diffraction (XRD), UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS), Raman spectroscopy, Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy. The band gap energy of the nanoparticles were estimated using UV–Vis DRS technique. With increasing Cr3+ cations content into TiO2 host lattice, the optical absorption band tuned in the visible region. XRD and TEM results reveal uniform and crystalline anatase TiO2 nanoparticles. The photodegradation of MB indicated that the photocatalytic activity of pure TiO2 nanoparticles increased with increasing Cr3+ cations concentration.",

author = "Yadav, {H. M.} and Kolekar, {T. V.} and Barge, {A. S.} and Thorat, {N. D.} and Delekar, {S. D.} and Kim, {B. M.} and Kim, {B. J.} and Kim, {J. S.}",

note = "Publisher Copyright: {\textcopyright} 2015, Springer Science+Business Media New York.",

year = "2016",

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doi = "10.1007/s10854-015-3785-6",

language = "English",

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T1 - Enhanced visible light photocatalytic activity of Cr3+-doped anatase TiO2 nanoparticles synthesized by sol–gel method

AU - Yadav, H. M.

AU - Kolekar, T. V.

AU - Barge, A. S.

AU - Thorat, N. D.

AU - Delekar, S. D.

AU - Kim, B. M.

AU - Kim, B. J.

AU - Kim, J. S.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - The photocatalytic degradation of methylene blue (MB) has been investigated under visible light irradiation with an incandescent light bulb using chromium doped TiO2 nanoparticles. Cr–TiO2 photocatalysts were successfully synthesized by sol–gel method at room temperature and characterized by X-ray diffraction (XRD), UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS), Raman spectroscopy, Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy. The band gap energy of the nanoparticles were estimated using UV–Vis DRS technique. With increasing Cr3+ cations content into TiO2 host lattice, the optical absorption band tuned in the visible region. XRD and TEM results reveal uniform and crystalline anatase TiO2 nanoparticles. The photodegradation of MB indicated that the photocatalytic activity of pure TiO2 nanoparticles increased with increasing Cr3+ cations concentration.

AB - The photocatalytic degradation of methylene blue (MB) has been investigated under visible light irradiation with an incandescent light bulb using chromium doped TiO2 nanoparticles. Cr–TiO2 photocatalysts were successfully synthesized by sol–gel method at room temperature and characterized by X-ray diffraction (XRD), UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS), Raman spectroscopy, Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy. The band gap energy of the nanoparticles were estimated using UV–Vis DRS technique. With increasing Cr3+ cations content into TiO2 host lattice, the optical absorption band tuned in the visible region. XRD and TEM results reveal uniform and crystalline anatase TiO2 nanoparticles. The photodegradation of MB indicated that the photocatalytic activity of pure TiO2 nanoparticles increased with increasing Cr3+ cations concentration.

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SN - 0957-4522

VL - 27

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JO - Journal of Materials Science: Materials in Electronics

JF - Journal of Materials Science: Materials in Electronics

IS - 1

ER -

Enhanced visible light photocatalytic activity of Cr³⁺-doped anatase TiO₂ nanoparticles synthesized by sol–gel method

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