Rhamnolipid Biosurfactant: Use for the Removal of Phenol from Aqueous Solutions by Micellar Solubilization

[Image: see text] Selective measurements of the self-diffusion coefficients of molecules of the biological surfactant rhamnolipid (RL) in individual aqueous solutions and in solutions with phenol as a solubilizate were carried out by nuclear magnetic resonance (NMR) diffusometry. Based on the obtain...

Descripción completa

Detalles Bibliográficos
Autores principales: Arkhipov, Victor P., Arkhipov, Ruslan, Filippov, Andrei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10448651/
https://www.ncbi.nlm.nih.gov/pubmed/37636955
http://dx.doi.org/10.1021/acsomega.3c04367
Descripción
Sumario:[Image: see text] Selective measurements of the self-diffusion coefficients of molecules of the biological surfactant rhamnolipid (RL) in individual aqueous solutions and in solutions with phenol as a solubilizate were carried out by nuclear magnetic resonance (NMR) diffusometry. Based on the obtained results, the solubilization characteristics of RLs were calculated. They are the fraction of solubilized phenol molecules, the phenol micelle–water distribution coefficient, the molar solubilization coefficient, the hydrodynamic radii of RL monomers and micelles, the aggregation numbers of micelles, and the solubilization capacity of micelles. Fraction of the solubilized phenol molecules increases and approaches 80–90% with increasing RL concentration. The solubilization capacity of the micelles increases from several units to 10(2) with an increase in both the concentration of RLs and the concentration of phenol in solution.