Photocatalytic degradation of supra black-T dye on charcoal under sunlight Online publication date: Wed, 17-Dec-2014
by Reena Amatya Shrestha; Mika Sillanpää; Jarina Joshi; Ackmez Mudhoo
International Journal of Environmental Technology and Management (IJETM), Vol. 15, No. 3/4/5/6, 2012
Abstract: Azo dyes are used in many industries such as carpet manufacturing, textiles, paint, ink, plastics and cosmetics production processes. The coloured industrial effluent can pose serious problems in the aquatic environment. It is possible to get complete mineralisation of organic pollutants in water by photocatalysts. This study was carried out to examine the feasibility to remove supra black-T dye from carpet dyeing wastewater by photocatalytic degradation on Oak charcoal under sunlight. Adsorption efficiency of dye on charcoal at various pH values and photodegradation with ZnO and TiO2 catalysts were studied. The removal efficiency of charcoal alone was 28 mg dye/g charcoal at pH 8 and 25°C in 60 min which was half that of activated charcoal. Photocatalytic degradation and adsorption with TiO2 and ZnO under sunlight was faster and almost complete removal was observed in shorter times.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environmental Technology and Management (IJETM):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook