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 |
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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. |