Interaction of Quercus Infectoria Natural Dye with Cationic and Anionic Surfactants: Adsorption/Micellization of Dye

Jing

AATCC Journal of Research

et al. 2019

Coomassie brilliant blue G250 (CBBG250) is used in textile, printing, and biotechnology applications. Fluorescence probe, UV-Vis spectrophotometric, and electrical conductivity methods were used to study the interactions between CBBG250 and the surfactant Tween 20 in aqueous solution. The fluorescence intensity ratio of pyrene (I3/I1) in the mixed system showed that I3/I1 increased significantly when the concentration of Tween 20 was greater than the critical micelle concentration (cmc, 5.25 × 10–5 mol/L). The micropolarity of the association system decreased as the concentration of CBBG250 in the solution increased. All results show that an interaction between CBBG250 and Tween 20 existed. Thermodynamic parameters were then determined, showing that the association was a spontaneous process that was driven by both enthalpy and entropy.

Section: Resultsmentioning

confidence: 99%

Dye-Surfactant Solution of Coomassie Brilliant Blue G250 and Tween 20: Micellar and Interaction Parametric Studies

Jing

AATCC Journal of Research

et al. 2019

“…Moreover, the degree of counterion dissociation β (the ratio of the slope of electrical conductivity before and after the CMC ) becomes

β = \frac{P}{N}

…”

Section: Resultsmentioning

confidence: 99%

Interaction of Phenol Red with cetyltrimethylammonium bromide in aqueous solution

Xiao

2015

Coloration Technology

This paper studies the interaction of anionic dye Phenol Red with cationic surfactant cetyltrimethylammonium bromide in aqueous solution and its influence on the formation of cetyltrimethylammonium bromide micelles for the first time. We obtain a series of thermodynamic parameters of the interaction by establishing a reasonable physical model of the association. Moreover, an in‐depth study on the variation in the absorption spectrum finds that the value of absorbance at the maximum absorption peak changes regularly with increase in the cetyltrimethylammonium bromide concentration. By establishing the micellisation models and measuring the changes in electrical conductivity with different cetyltrimethylammonium bromide concentrations, the critical micelle concentration values are obtained, which are essentially the same as the range of concentrations of regular change in absorbance, which shows that the formation of the cetyltrimethylammonium bromide micelles have an impact on the association interaction between Phenol Red and cetyltrimethylammonium bromide. All these data and phenomena illustrate a strong interaction between Phenol Red and cetyltrimethylammonium bromide.

“…Moreover, the degree of counterion dissociation β (The ratio of the slope of electric conductivity before and after the critical micelle concentration [11,55] ) is:…”

Section: The Micellization Thermodynamic Parameters Of Ctab In Absenc...mentioning

confidence: 99%

“…[3] The study of interactions between surfactants and dyes in aqueous solutions has attracted significant interest in the recent years because of their relatively complex behavior and widespread applications. [1,[4][5][6][7][8] This investigation is of great importance to various chemical research area, including photosensitization, [9] medicinal applications, [10,11] photographic industry [12] and ion detection. [13] Consequently, it has emerged as a significant research area, [14][15][16][17][18][19][20] especially as surfactants assist the dyeing process in dyeing industry.…”

Section: Introductionmentioning

confidence: 99%

Effect of CTAB premicelle and micelle formation on Bromophenol Blue spectra

Zheng,

Ma,

Zhang

et al. 2024

ChemistrySelect

The interactions between surfactants and dyes in aqueous solutions are essential for gaining insights into dyeing processes across various industries and for driving advancements in chemical research. This paper investigates the interaction between the anionic dye bromophenol blue (BPB) and the cationic surfactant cetyltrimethylammonium bromide (CTAB) in aqueous solutions. It was observed that the absorbance value at the maximum absorption peak of BPB changes systematically with increasing CTAB concentration, revealing the critical premicelle concentration (cpc) and critical micelle concentration (cmc) of CTAB. Employing a micellization model and measuring the electric conductivity across different concentrations of CTAB, the micellization thermodynamic parameters of CTAB, both in the absence and presence of BPB, were determined. The findings indicate that the associative interaction between BPB and CTAB significantly influences the formation of CTAB micelles.