Surface Modification, Characterization and Photocatalytic Performance of Nano-Sized Titania Modified with Silver and Bentonite Clay

Neetu Divya; Ajay Bansal; Asim K. Jana

doi:10.9767/bcrec.4.2.1249.43-53

Surface Modification, Characterization and Photocatalytic Performance of Nano-Sized Titania Modified with Silver and Bentonite Clay

*Neetu Divya - Department of Chemical Engineering, National Institute of Technology, Jalandhar, 1440011, Punjab, India

Ajay Bansal - Department of Chemical Engineering, National Institute of Technology, Jalandhar, 1440011, Punjab, India

Asim K. Jana - Department of Biotechnology, National Institute of Technology, Jalandhar, 1440011, Punjab, India

Received: 25 Dec 2011; Published: 25 Dec 2011.

DOI: https://doi.org/10.9767/bcrec.4.2.1249.43-53 View

BibTex Citation Data :

@article{BCREC1249,
    author = {Neetu Divya and Ajay Bansal and Asim K. Jana},
    title = {Surface Modification, Characterization and Photocatalytic Performance of Nano-Sized Titania Modified with Silver and Bentonite Clay},
    journal = {Bulletin of Chemical Reaction Engineering & Catalysis},
  volume = {4},
    number = {2},
    year = {2011},
    keywords = {Decolorization; Mineralization; Orange G; Nano-composite catalyst; Catalyst-characterization},
    abstract = { In many textile industries dyes are used as coloring agents. Advanced   oxidation processes are used for degrading or removing color from dye   baths. Catalysts play a key role in these industries for the treatment   of water. Solid catalysts are usually composed of metals that form   supports onto the surface and create metal particles with high surface   areas. TiO2 composites containing transition metal ions (silver) and/or   bentonite clay were prepared. Photocatalytic efficiencies have been   investigated for the degradation of Orange G an azo dye. Various   analytical techniques were used to characterize the surface properties   of nano-sized titania modified using silver and/or bentonite clay.   Scanning electron microscopy (SEM), Transmission electron microscopy   (TEM), X-ray diffraction (XRD) and FTIR analyses showed that TiO2 (10 ± 2   nm) and Ag (2 to 3 nm) particles were supported on the surface of the   bentonite clay and the size was in the range of 100 ± 2 nm. The  modified  catalysts P-25 TiO2/Bentonite/Ag and P-25 TiO2/Ag were found  to be very  active for the photocatalytic decomposition of Orange G. The  percent  decolorization in 60 min was 98% with both P-25 TiO2/Ag and  P-25  TiO2/Bentonite/Ag modified catalysts. Whereas mineralization  achieved in  9 hr were 68% and 71% with P-25 TiO2/Bentonite/Ag and P-25  TiO2/Ag  catalyst respectively. © 2009 BCREC UNDIP. All rights reserved   [Received: 30 October 2009, Revised: 20 November 2009, Accepted: 21 November 2009]    [How to Cite :  N. Divya, A. Bansal, A. K. Jana. (2009). Surface Modification,  Characterization and Photocatalytic Performance of Nano-Sized Titania  Modified with Silver and Bentonite Clay.  Bulletin of Chemical Reaction Engineering and Catalysis , 4(2): 43-53.   doi:10.9767/bcrec.4.2.1249.43-53 ]  [ How to Link/ DOI :  http://dx.doi.org/10.9767/bcrec.4.2.1249.43-53  || or local:  http://ejournal.undip.ac.id/index.php/bcrec/article/view/1249  ] },
   issn = {1978-2993},   pages = {43--53}  doi = {10.9767/bcrec.4.2.1249.43-53},
    url = {https://ejournal.undip.ac.id/index.php/bcrec/article/view/1249}
}

Citation Format:

Abstract

In many textile industries dyes are used as coloring agents. Advanced oxidation processes are used for degrading or removing color from dye baths. Catalysts play a key role in these industries for the treatment of water. Solid catalysts are usually composed of metals that form supports onto the surface and create metal particles with high surface areas. TiO2 composites containing transition metal ions (silver) and/or bentonite clay were prepared. Photocatalytic efficiencies have been investigated for the degradation of Orange G an azo dye. Various analytical techniques were used to characterize the surface properties of nano-sized titania modified using silver and/or bentonite clay. Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray diffraction (XRD) and FTIR analyses showed that TiO2 (10 ± 2 nm) and Ag (2 to 3 nm) particles were supported on the surface of the bentonite clay and the size was in the range of 100 ± 2 nm. The modified catalysts P-25 TiO2/Bentonite/Ag and P-25 TiO2/Ag were found to be very active for the photocatalytic decomposition of Orange G. The percent decolorization in 60 min was 98% with both P-25 TiO2/Ag and P-25 TiO2/Bentonite/Ag modified catalysts. Whereas mineralization achieved in 9 hr were 68% and 71% with P-25 TiO2/Bentonite/Ag and P-25 TiO2/Ag catalyst respectively. © 2009 BCREC UNDIP. All rights reserved

[Received: 30 October 2009, Revised: 20 November 2009, Accepted: 21 November 2009]

[How to Cite: N. Divya, A. Bansal, A. K. Jana. (2009). Surface Modification, Characterization and Photocatalytic Performance of Nano-Sized Titania Modified with Silver and Bentonite Clay. Bulletin of Chemical Reaction Engineering and Catalysis, 4(2): 43-53. doi:10.9767/bcrec.4.2.1249.43-53]

[How to Link/ DOI: http://dx.doi.org/10.9767/bcrec.4.2.1249.43-53 || or local: http://ejournal.undip.ac.id/index.php/bcrec/article/view/1249 ]

Keywords: Decolorization; Mineralization; Orange G; Nano-composite catalyst; Catalyst-characterization

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Section: Original Research Articles

Language: EN

In 2009: BCREC Volume 4 Issue 2 Year 2009 (Scopus Indexed)

Statistics: 757 700

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