Adsorption and aggregation of a cationic cyanine dye on layered clay minerals

Nobuyoshi Miyamoto, Ryo Kawai, Kazuyuki Kuroda, Makoto Ogawa*

*この研究の対応する著者

研究成果査読

94 被引用数 (Scopus)

抄録

The adsorption and aggregation of a cationic cyanine dye, 1,1'-diethyl-2,2'-cyanine (pseudoisocyanine; abbreviated as PIC), on various clays have been investigated. The PIC formed J-aggregates on Na-montmorillonite and synthetic Na-fluor-tetrasilicic mica (TSM), while they distributed molecularly on synthetic Na-saponite and synthetic Na-hectorites. The particle size of the clays was considered to be a dominant factor to control the aggregation of PIC. The J-aggregate formation was suppressed when tetramethylammonium-montmorillonite was employed as a host material. Ethylene glycol in the suspension was also responsible for the suppression of J-aggregate formation of PIC. Thus, the aggregation of PIC was effectively controlled by the species surrounding the PIC cations as well as the nature of clays. (C) 2000 Elsevier Science B.V. All rights reserved.

本文言語English
ページ(範囲)161-170
ページ数10
ジャーナルApplied Clay Science
16
3-4
DOI
出版ステータスPublished - 2000 3
外部発表はい

ASJC Scopus subject areas

  • 地質学
  • 地球化学および岩石学

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