Photodegradation of Surfactants. III. Heterogeneous Photocatalytic Degradation of Cationic Surfactants on TiO<SUB>2</SUB> Particles

Hisao HIDAKA; Yasuji FUJITA; Kazuya IHARA; Shinya YAMADA; Keiichi SUZUKI; Nick SERPONE; Ezio PELIZZETTI

doi:10.5650/jos1956.36.836

Photodegradation of Surfactants. III.

Heterogeneous Photocatalytic Degradation of Cationic Surfactants on TiO₂ Particles

Hisao HIDAKA, Yasuji FUJITA, Kazuya IHARA, Shinya YAMADA, Keiichi SUZUKI, Nick SERPONE, Ezio PELIZZETTI

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JOURNAL FREE ACCESS

1987 Volume 36 Issue 11 Pages 836-839

DOI https://doi.org/10.5650/jos1956.36.836

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Abstract

The heterogeneous photocatalytic degradation of cationic surfactants including benzyldodecylc-dimethyl ammonium chloride (BDDAC) was carried out in the presence of oxygen with powdery TiO₂ suspended. The surface activity was lowered with irradiation time. The long alkyl chain and aromatic moiety in BDDAC were competitively degraded.
The photocatalytic decomposition rate of BDDAC was faster in a neutral than an acidic or alkaline medium.

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