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Updated: Jan 20, 2026

Adsorption Device Based on a Langatate Crystal Microbalance for High Temperature High Pressure Gas Adsorption in Zeolite H-ZSM-5
Published on: August 25, 2016
Carbon dioxide adsorption on a modified zeolite with sodium dodecyl sulfate surfactants: A molecular dynamics study
Minerva Valencia-Ortega1, Raúl Fuentes-Azcatl1, Hector Dominguez1
1Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, D.F., 04510, Mexico.
Abstract:
Molecular dynamics simulations are carried out to study adsorption of Carbon dioxide (CO2) in a zeolite modified with anionic surfactants at different gas concentrations. Sodium dodecyl sulfate (SDS) surfactant is used and simulations at different SDS concentrations were conducted. The results show that adsorption of the gas is influenced by the amount of SDS on the zeolite surface. In addition, gas retention inside and outside the solid is observed and it strongly depends on the free sodium ions in the zeolite. The most favorable adsorption takes place at low CO2 concentrations with few SDS molecules. Adsorption was studied in terms of density profiles and pair correlation functions and strong interactions of the CO2 molecules with the sodium ions were observed.
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