コイケ　タカヨシ   KOIKE Takayoshi   小池　崇喜    所属   理工学部 総合理工学科    職種   特任准教授
言語種別	英語
発行・発表の年月	2008
形態種別	学術雑誌
査読	査読あり
標題	Metal-oxide photoassisted degradation of binary systems of cationic/anionic surfactants and their components in aqueous dispersions
執筆形態	共著
掲載誌名	Journal of Advanced Oxidation Technologies
巻・号・頁	11(2),pp.222-230
著者・共著者	Hisao Hidaka, Ippei Yanagisawa, Haruo Honjou, Takayoshi Koike, Toshiyuki Oyama, Nick Serpone
概要	The TiO2 photo-assisted degrdns. of a series of anionic (dodecylbenzenesulfonate, DBS; dodecylsulfonate, DoS) and cationic (hexadecyltrimemylammonium, HTAB; benzyldodecyldimethyl- ammonium BDDAB; and dodecylpyridinium, C12-PC) surfactants were examd. in aq. media along with their cationic/anionic 1:1 binary complexes: (i) HTAB/DBS, (ii) BDDAB/DoS and (iii) C12-PC/DoS. The processes were monitored by surface tension measurements, by total org. carbon (TOC) assays and carbon dioxide evolution. Some hydroxylated intermediates of the BDDAB system were identified by TOF-MS techniques. The degrdn. of the anionic surfactants was significant involving prior adsorption of the species on the pos. charged metal-oxide particle surface. By contrast, the degrdn. of the cationic surfactants was rather limited owing to lack of adsorption on the TiO2 surface under the same conditions.