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2015 | OriginalPaper | Buchkapitel

Immobilization of Nano-sized TiO2 on Glass Plate for the Removal of Methyl Orange and Methylene Blue

verfasst von : Lim Ying Chin, Lim Ying Pei, Razzana binti Rosli, Nur Hazira binti Mohd Atni

Erschienen in: ICGSCE 2014

Verlag: Springer Singapore

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Abstract

Titanium dioxide (TiO2) is the most researched photocatalyst due to its potential for dye removals in wastewater treatment. However, the TiO2 powder suffers from agglomeration which hindered its process of industrialization. Thus, this study was carried out to immobilize nano-sized TiO2 on glass plate via doctor blade technique and the crystal structure and surface morphology of the samples were accomplished using XRD and FESEM. The effects of operational parameters such as effect of light and pH in the removal of methyl orange (MO) and methylene blue (MB) using the as-prepared TiO2 films were investigated. MO achieved a removal of 95 %, while only 47 % removal efficiency for MB after 120 min under UV-light illumination. On the other hand, percentage removal for MO and MB are recorded as 65 and 28 % respectively under LED light irradiation. The photocatalytic removal of MO and MB was found to be mainly due to the adsorption-photocatalysis process, while the photolysis process is almost negligible. The kinetic study indicates that the photodegradation rate of MO and MB is fitted to the pseudo-first order rate model.

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Metadaten
Titel
Immobilization of Nano-sized TiO2 on Glass Plate for the Removal of Methyl Orange and Methylene Blue
verfasst von
Lim Ying Chin
Lim Ying Pei
Razzana binti Rosli
Nur Hazira binti Mohd Atni
Copyright-Jahr
2015
Verlag
Springer Singapore
DOI
https://doi.org/10.1007/978-981-287-505-1_13