Photo-Oxidation of Rhodamine-6-G via TiO2and Au/TiO2-Bound Polythene Beads | Zendy

Souad A. Elfeky | Zendy; Al-Sayed Al-Sherbini | Zendy

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Photo-Oxidation of Rhodamine-6-G via TiO₂and Au/TiO₂-Bound Polythene Beads

Author(s) -

Souad A. Elfeky,

Al-Sayed Al-Sherbini

Publication year - 2011

Publication title -

journal of nanomaterials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.463

H-Index - 66

eISSN - 1687-4129

pISSN - 1687-4110

DOI - 10.1155/2011/570438

Subject(s) - materials science , rhodamine 6g , oxidizing agent , rhodamine b , photocatalysis , nanocomposite , absorption (acoustics) , chemical engineering , pollutant , photochemistry , catalysis , composite material , organic chemistry , molecule , chemistry , engineering

It is very important to improve the efficiency of water detoxification techniques. In this study, TiO2 or gold-TiO2 (Au/TiO2) nanocomposite-bound polythene beads were used for the photo-oxidation of rhodamine 6G (R6G) as a model of water organic pollutants. Simple thermal procedures were employed for anchoring TiO2 or Au/TiO2 nanocomposites to polythene beads. The results revealed that the synthesized Au/TiO2 composites exhibited both considerably higher absorption capability of organic pollutants and better photocatalytic activity for the photo-oxidation of R-6G than pure titania. The better photocatalytic activity of the synthesized Au/TiO2 composites film than that of the pure titania film was attributed to high capacity of light absorption intensity and easy diffusion of absorbed pollutants on the absorption sites to photogenerated oxidizing radicals on the photoactive sites.

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