Revealing the Molecular Interaction of Surface Active Ionic Liquids [C8mim][Cl] and [C10mim][Cl] with Anionic Dye Eosin Yellow: A Comparative Study with Analogous Cationic Surfactants

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-03-30 DOI:10.1007/s10953-024-01371-x

Faiz Warsi, Sameer Shakeel Ansari, Abbul Bashar Khan, Maroof Ali

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Abstract

Aggregation behaviour of two cationic surfactants octyltrimethylammonium bromide [OTMAB], decyltrimethylammonium bromide [DTMAB] and two surface active ionic liquids 1-methyl-3-octylimidazolium chloride [C₈mim][Cl], 1-methyl-3-decylimidazolium chloride [C₁₀mim][Cl] with anionic dye eosin yellow were investigated by conductometry, UV–Visible spectroscopy and fluorescence spectroscopy. Decrease in CMC of SAILs/surfactants is observed in presence of eosin yellow. Spectroscopic analysis demonstrates a shift in spectra of dye which implies SAILs/surfactants interaction with dye. Binding constant (K_a) obtained by UV–Visible spectroscopy and fluorescence spectroscopy follows the sequence [C₁₀mim][Cl] > [C₈mim][Cl] and [DTMAB] > [OTMAB]. The binding constant seems to be mostly dependent on the carbon chain length of these SAILs as well as surfactants.

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揭示表面活性离子液体 [C8mim][Cl] 和 [C10mim][Cl] 与阴离子染料曙红的分子相互作用：与类似阳离子表面活性剂的比较研究

通过电导率测定法、紫外可见光谱法和荧光光谱法研究了两种阳离子表面活性剂辛基三甲基溴化铵[OTMAB]、癸基三甲基溴化铵[DTMAB]和两种表面活性离子液体1-甲基-3-辛基咪唑氯化物[C8mim][Cl]与阴离子染料曙红黄的聚集行为、和 1-甲基-3-癸基氯化咪唑鎓[C10mim][Cl]与阴离子染料曙红黄一起，通过电导率测定法、紫外可见光谱法和荧光光谱法进行了研究。在曙红的存在下，观察到 SAILs/表面活性剂的 CMC 下降。光谱分析显示染料的光谱发生了变化，这意味着 SAILs/表面活性剂与染料发生了相互作用。紫外可见光谱和荧光光谱得出的结合常数（Ka）遵循 [C10mim][Cl] > [C8mim][Cl] 和 [DTMAB] > [OTMAB] 的顺序。结合常数似乎主要取决于这些 SAIL 和表面活性剂的碳链长度。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.