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Influence of surface chemistry versus porosity on Triton X-100 adsorption to activated carbon

Determine whether both the surface chemistry of YP-50 activated carbon and its hierarchical porosity influence the adsorbent–adsorbate interaction between Triton X-100 and activated carbon in 1 M H2SO4 with 0.55 M Fe2SO4.

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Background

The authors discuss possible adsorption mechanisms of Triton X-100 on activated carbon (AC), noting that monomers may preferentially adsorb into micropores at low concentrations and subsequently onto meso/macro-pores or external surfaces as concentration increases.

Given the complex AC surface chemistry (oxygen-containing groups) and high porosity, the authors state uncertainty regarding whether both factors jointly influence the adsorbent–adsorbate interaction in their system.

References

It cannot be ruled out that in the present study the adsorbent-adsorbate interaction is influenced both by surface chemistry as well as porosity.

— Surfactant-Driven Dynamic Changes in Rheology of Activated Carbon Slurry Electrodes (2403.13782 - Das et al., 20 Mar 2024) in Section 3.6 (Surfactant adsorption on AC particles)