Photocatalytic Decolorization of Rhodamine B Dye Solution Using TiO2 Coated Cotton Fabric
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TiO2 is known for its photocatalytic activity. It has ability to degrade a number of organic pollutants. In the current study, TiO2 has been prepared in situ on cotton fabric, using its precursor through a modified sol-gel method. The in situ prepared TiO2 on fabric was further given heat treatments via different routes. The crystalline form, surface morphology and Ti content of the samples coated with TiO2 have been evaluated by XRD, FESEM and ICP-MS. The UV absorption behavior of the samples was studied using UV-visible spectroscopy. The photocatalytic degradation of Rhodamine B dye was conducted under UV light, using TiO2 coated cotton fabric prepared via different routes. It has been found that the sample treated with TiO2 via pad-dry-solvothermal route shows the highest rate of decolorization in comparison with samples prepared via pad-dry-cure and pad-dry-hydrothermal route. The mechanism of dye decolorization using TiO2 coated fabric has also been discussed.
KeywordsPhotocatalyst TiO2 Dye decolorization Sol-gel Rhodamine B
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