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Adsorption equilibrium of copper ion and phenol by powdered activated carbon, alginate bead and alginate-activated carbon bead

“…Acid or alkali species may change the surface chemistry of the adsorbent by reacting with surface groups. These effects may lead to significant alterations in the adsorption equilibrium depending on the pH [23]. The effect of pH on the removal of the phenol using PAC is presented in Fig.…”

Investigation into adsorption mechanisms of sulfonamides onto porous adsorbents

“…There are many examples and explanations for the adsorption by F-400 via micropore-filling in the literature [37][38][39]. Researchers attribute apparent endothermic adsorption to the effective favoring of pore diffusion in terms of the large percentage of micropores and an increase in the package density of adsorbate molecules in the micropores of activated carbons.…”

Ozonation of activated carbons: Effect on the adsorption of selected phenolic compounds from aqueous solutions

“…Retention times were about 5.9, 8.9, and 18.2 min for P, PNP, and PCP, respectively. The amount of adsorbed phenolic compounds was deduced from the mass balance as usual [27].…”