Plasmon resonance enhanced photocatalysis under visible light with Au/Cu-TiO2 nanoparticles: Removal Cr (VI) from water as a case of study

M. A. Gondal; M. A. Dastageer; S. G. Rashid; S. M. Zubair; M. A. Ali; D. H. Anjum; J. H. Lienhard; G. H. McKinley; K. Varanasi

doi:10.1166/sam.2013.1669

Plasmon resonance enhanced photocatalysis under visible light with Au/Cu-TiO₂ nanoparticles: Removal Cr (VI) from water as a case of study

M. A. Gondal
, M. A. Dastageer
, S. G. Rashid
, S. M. Zubair
, M. A. Ali
, D. H. Anjum
, J. H. Lienhard
, G. H. McKinley
, K. Varanasi

Physics

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

17 Scopus citations

Abstract

Gold modified copper doped titania (Au/Cu:TiO₂) nanoparticles were synthesized by a modified sol gel method and characterized using XRD, optical and TEM based techniques. The as-prepared material contained anatase phase particles with quasi-spherical morphology, showing enhanced absorption in the visible region and low photoluminescence emission intensity. Photocatalytic reduction of Cr (VI) in aqueous suspension with the Au/Cu:TiO₂catalyst under 532 nm laser radiation and a visible broad band lamp source yielded 96% and 45% removal, respectively, without any additives. The enhanced photocatalytic activity can be attributed to the improved plasmonic effect due to gold modification and the expanded visible absorption due to copper doping. Moreover a comparative study of the material properties and catalytic activity of TiO₂, Cu-TiO₂and Au/Cu-TiO₂ was carried out.

Original language	British English
Pages (from-to)	2007-2014
Number of pages	8
Journal	Science of Advanced Materials
Volume	5
Issue number	12
DOIs	https://doi.org/10.1166/sam.2013.1669
State	Published - Dec 2013

Keywords

Au/Cu-TiO nanocomposite
Heterogeneous catalysis
Plasmonic metals
Visible light active catalyst
Waste water treatment using solar radiations

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1166/sam.2013.1669

Cite this

Gondal, M. A., Dastageer, M. A., Rashid, S. G., Zubair, S. M., Ali, M. A., Anjum, D. H., Lienhard, J. H., McKinley, G. H., & Varanasi, K. (2013). Plasmon resonance enhanced photocatalysis under visible light with Au/Cu-TiO₂ nanoparticles: Removal Cr (VI) from water as a case of study. Science of Advanced Materials, 5(12), 2007-2014. https://doi.org/10.1166/sam.2013.1669

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title = "Plasmon resonance enhanced photocatalysis under visible light with Au/Cu-TiO2 nanoparticles: Removal Cr (VI) from water as a case of study",

abstract = "Gold modified copper doped titania (Au/Cu:TiO2) nanoparticles were synthesized by a modified sol gel method and characterized using XRD, optical and TEM based techniques. The as-prepared material contained anatase phase particles with quasi-spherical morphology, showing enhanced absorption in the visible region and low photoluminescence emission intensity. Photocatalytic reduction of Cr (VI) in aqueous suspension with the Au/Cu:TiO2catalyst under 532 nm laser radiation and a visible broad band lamp source yielded 96\% and 45\% removal, respectively, without any additives. The enhanced photocatalytic activity can be attributed to the improved plasmonic effect due to gold modification and the expanded visible absorption due to copper doping. Moreover a comparative study of the material properties and catalytic activity of TiO2, Cu-TiO2and Au/Cu-TiO2 was carried out.",

keywords = "Au/Cu-TiO nanocomposite, Heterogeneous catalysis, Plasmonic metals, Visible light active catalyst, Waste water treatment using solar radiations",

author = "Gondal, \{M. A.\} and Dastageer, \{M. A.\} and Rashid, \{S. G.\} and Zubair, \{S. M.\} and Ali, \{M. A.\} and Anjum, \{D. H.\} and Lienhard, \{J. H.\} and McKinley, \{G. H.\} and K. Varanasi",

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AU - Gondal, M. A.

AU - Dastageer, M. A.

AU - Rashid, S. G.

AU - Zubair, S. M.

AU - Ali, M. A.

AU - Anjum, D. H.

AU - Lienhard, J. H.

AU - McKinley, G. H.

AU - Varanasi, K.

PY - 2013/12

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AB - Gold modified copper doped titania (Au/Cu:TiO2) nanoparticles were synthesized by a modified sol gel method and characterized using XRD, optical and TEM based techniques. The as-prepared material contained anatase phase particles with quasi-spherical morphology, showing enhanced absorption in the visible region and low photoluminescence emission intensity. Photocatalytic reduction of Cr (VI) in aqueous suspension with the Au/Cu:TiO2catalyst under 532 nm laser radiation and a visible broad band lamp source yielded 96% and 45% removal, respectively, without any additives. The enhanced photocatalytic activity can be attributed to the improved plasmonic effect due to gold modification and the expanded visible absorption due to copper doping. Moreover a comparative study of the material properties and catalytic activity of TiO2, Cu-TiO2and Au/Cu-TiO2 was carried out.

KW - Au/Cu-TiO nanocomposite

KW - Heterogeneous catalysis

KW - Plasmonic metals

KW - Visible light active catalyst

KW - Waste water treatment using solar radiations

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