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Effect of hydrophobically modified SiO2 nanoparticles on the stability of water-based SDS foam
- Source :
- Arabian Journal of Chemistry, Vol 13, Iss 9, Pp 6942-6948 (2020)
- Publication Year :
- 2020
- Publisher :
- Elsevier, 2020.
-
Abstract
- In the present study, SiO2 nanoparticles were first hydrophobically modified and then added into anionic surfactant sodium dodecyl sulfate (SDS) stabilized water-based foam to improve the foam stability. The foam stability was experimentally evaluated by measuring surface tension, Zeta potential and half-life of the foam. The foam stabilizing mechanism was also studied from a micro perspective by molecular dynamics simulation through analyzing the equilibration configuration and MSD curve of both SDS surfactant and water molecules. The results show that foam exhibits an optimal stability when SiO2 concentration is 0.35 wt% under a specific surfactant concentration (0.5 wt%) in this work. The addition of SiO2 nanoparticles with suitable concentration could improve the adsorption between SDS molecules and nanoparticles, thus limiting the movement of SDS and restricting the movement of surrounding water molecules, which is beneficial to enhance the foam stability.
- Subjects :
- Chemistry
General Chemical Engineering
Nanoparticle
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
SiO2 nanoparticles
0104 chemical sciences
Surface tension
lcsh:Chemistry
Molecular dynamics
chemistry.chemical_compound
Adsorption
Pulmonary surfactant
Chemical engineering
lcsh:QD1-999
Surfactant
Zeta potential
Molecule
lipids (amino acids, peptides, and proteins)
Sodium dodecyl sulfate
Foam stability
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 18785352
- Volume :
- 13
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Arabian Journal of Chemistry
- Accession number :
- edsair.doi.dedup.....be9f737c77a80d9fcfe56c3dc7499c65