Photocatalytic Degradation of Citric Acid in Wastewater in Presence of Visible Light by La:Ni:TiO2 Nanocomposite
American Journal of Nano Research and Applications
Volume 5, Issue 5, October 2017, Pages: 61-68
Received: Jul. 4, 2017; Accepted: Jul. 13, 2017; Published: Sep. 16, 2017
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Authors
Azad Kumar, Department of Applied Chemistry, School for Physical Sciences Babasaheb Bhimrao Ambedkar University, Lucknow, India
Gajanan Pandey, Department of Applied Chemistry, School for Physical Sciences Babasaheb Bhimrao Ambedkar University, Lucknow, India
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Abstract
In this study, nanocomposites of La:Ni:TiO2 nanocomposite was prepared by the co-precipitation method. The material was found in the nano dimension by the SEM and TEM analysis. The rutile and anatase both phases were present in XRD analysis of the synthesized materials. The particle size was found 24 and 82 nm in the case of La:Ni:TiO2 nanocomposite and pure Titania respectively. The surface area of Titania and La:Ni:TiO2 nanocomposite were found 6.4 and 43.2 m2/g. The band gap energy of Titania and La:Ni:TiO2 nanocomposite were found 3.2 eV and 3.0 eV respectively. The photodegradation of Citric Acid was investigated at different parameters such as temperature, concentration, pH of the reaction mixture, the dose of photocatalyst and time of illumination of visible light. The photodegradation of Citric Acid occurs 60-90% in presence of La:Ni:TiO2 nanocomposite, while in presence of titania 10-18%. It is found that photodegradation of Citric Acid follows the first order kinetics.
Keywords
Titania, Nanocomposite, Photocatalyst, Photodegradation, Citric Acid
To cite this article
Azad Kumar, Gajanan Pandey, Photocatalytic Degradation of Citric Acid in Wastewater in Presence of Visible Light by La:Ni:TiO2 Nanocomposite, American Journal of Nano Research and Applications. Vol. 5, No. 5, 2017, pp. 61-68. doi: 10.11648/j.nano.20170505.11
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Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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