Au/TiO2Reusable Photocatalysts for Dye Degradation | Zendy

Silija Padikkaparambil | Zendy; Binitha N. Narayanan | Zendy; Zahira Yaakob | Zendy; Suraja Viswanathan | Zendy; Siti Masrinda Tasirin | Zendy

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Au/TiO₂Reusable Photocatalysts for Dye Degradation

Author(s) -

Silija Padikkaparambil,

Binitha N. Narayanan,

Zahira Yaakob,

Suraja Viswanathan,

Siti Masrinda Tasirin

Publication year - 2013

Publication title -

international journal of photoenergy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.426

H-Index - 51

eISSN - 1687-529X

pISSN - 1110-662X

DOI - 10.1155/2013/752605

Subject(s) - photodegradation , photocatalysis , x ray photoelectron spectroscopy , anatase , degradation (telecommunications) , diffuse reflectance infrared fourier transform , materials science , transmission electron microscopy , visible spectrum , chemical engineering , photochemistry , reusability , spectroscopy , catalysis , nanotechnology , chemistry , optoelectronics , organic chemistry , computer science , telecommunications , physics , software , quantum mechanics , engineering , programming language

Nanogold doped TiO2 catalysts are synthesized, and their application in the photodegradation of dye pollutants is studied. The materials are characterized using different analytical techniques such as X-ray diffraction, transmission electron microscopy, UV-visible diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. The results revealed the strong interaction between the metallic gold nanoparticles and the anatase TiO2 support. Au doped systems showed very good photoactivity in the degradation of dye pollutants under UV irradiation as well as in sunlight. A simple mechanism is proposed for explaining the excellent photoactivity of the systems. The reusability studies of the photocatalysts exhibited more than 98% degradation of the dye even after 10 repeated cycles

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