Peroxomonosulphate, an efficient oxidant for the photocatalysed degradation of a textile dye, acid red 88
Madhavan, J., Achari, Muthuraaman Bhagavathi , Murugesan, S., Anandan, S., & Maruthamuthu, P. (2006) Peroxomonosulphate, an efficient oxidant for the photocatalysed degradation of a textile dye, acid red 88. Solar Energy Materials and Solar Cells, 90(13), pp. 1875-1887.
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Visible light-assisted degradation of a mono azo textile dye acid red 88 (AR88) was carried out in presence of titanium dioxide photocatalyst. Various operational parameters such as variation of the initial dye concentration, photocatalyst and pH on the photocatalytic degradation rate were studied. Effect of the amount of oxidants such as peroxomonosulphate (PMS) and peroxodisulphate (PDS) and the ratio of concentration of oxidant to the concentration of dye (Coxidant/Cdye) on the photocatalysed degradation rate were also investigated. Though the rate of photodegradation of the dye decreased with increase in dye concentration, the rate increased with Coxidant/Cdye ratio. Total organic carbon (TOC) analysis revealed a rapid mineralisation of AR88 in the presence of PMS. A suitable mechanism explaining the observed enhanced decolorisation and mineralisation rate of the dye with PMS is presented.
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|Item Type:||Journal Article|
|Additional Information:||For more information, please refer to the journal’s website (see hypertext link) or contact the author.|
|Keywords:||Photocatalysis;, Acid red 88, Peroxomonosulphate, Peroxodisulphate, Visible light|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
|Copyright Owner:||Copyright 2006 Elsevier|
|Deposited On:||23 Feb 2009 05:36|
|Last Modified:||29 Feb 2012 13:47|
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