A Comparative Spectral Study on the Interaction of Organic Dye Congo-Red with Selective Aqueous Micellar Media of CPC, Rhamnolipids and Saponin
| Autor: | Aniruddha Pal, Amit Garain, Monohar Hossain Mondal, Deep Chowdhury, Bidyut Saha |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution biology General Chemical Engineering Saponin 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Sapindus biology.organism_classification 01 natural sciences 0104 chemical sciences Congo red chemistry.chemical_compound chemistry Organic dye 0210 nano-technology Nuclear chemistry |
| Zdroj: | Tenside Surfactants Detergents. 57:401-407 |
| ISSN: | 2195-8564 0932-3414 |
| DOI: | 10.3139/113.110700 |
| Popis: | The present study is an investigation of the solubilising ability of natural and conventional surfactants saponin (sapindus saponin or reetha saponin), Rhamnolipids (RLs) and N-cetylpyridinium chloride (CPC) respectively via dye-surfactant interaction. The ionic dye Congo Red was examined by absorption spectroscopy method for the study. The dye interacted strongly with oppositely charged surfactant N-cetylpyridinium chloride in the pre-micellar concentration range and formed a stable dye-surfactant complex. The thermodynamic parameter, free energy change for all the systems was calculated at a constant temperature of 25°C. The ΔG0 value for N-cetylpyridinium chloride is found to be −33.269 kJ/mol while for saponin and rhamnolipids the values were −16.084 kJ/mol and −26.006 kJ/mol respectively. The values clearly indicate the efficiency of N-cetylpyridinium chloride surfactant compared to the other two surfactants. The present study aims to understand the dye solubilization in surfactant media in order to develop environmentally friendly, green and cost effective techniques. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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