Influence of surface roughness on cetyltrimethylammonium bromide adsorption from aqueous solution.

@article{Wu2011InfluenceOS,
  title={Influence of surface roughness on cetyltrimethylammonium bromide adsorption from aqueous solution.},
  author={Shuqing Wu and Liu Shi and Lucas B Garfield and Rico F Tabor and Alberto Striolo and Brian P Grady},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  year={2011},
  volume={27 10},
  pages={6091-8}
}
The influence of surface roughness on surfactant adsorption was studied using a quartz crystal microbalance with dissipation (QCM-D). The sensors employed had root-mean-square (R) roughness values of 2.3, 3.1, and 5.8 nm, corresponding to fractal-calculated surface area ratios (actual/nominal) of 1.13, 1.73, and 2.53, respectively. Adsorption isotherms measured at 25 °C showed that adsorbed mass of cetyltrimethylammonium bromide per unit of actual surface area below 0.8 cmc, or above 1.2 cmc… CONTINUE READING