Blind prediction of Cu(II) sorption onto goethite: Current capabilities of diffuse double layer model

Surface adsorption of organoarsenic roxarsone and arsanilic acid on iron and aluminum oxides

“…The surface site densities were 2.31 and 2.3 for goethite [34] and Al 2 O 3 [26], respectively. Calculations show that the amount of reactive surface functional groups is approximately three times higher for Al 2 O 3 (3.11 × 10 −4 mol/L at 0.878 g/L) than that of goethite (1.09 × 10 −4 mol/L at 0.178 g/L) under the experimental conditions, indicating goethite is a much more efficient adsorbent than Al 2 O 3 for organoarsenics.…”

Sorption of copper(II) onto super-adsorbent of bentonite–polyacrylamide composites

“…With increasing pH, the negative charged groups or deprotonated groups increase and the hydrolysis of Cu(II) also increases. According to the hydrolysis constants of Cu(II) [21], the distribution species of Cu(II) as a function of pH is shown in Fig. 4.…”

The Effect of Organic Ligands on the Sorption of Neodymium, Gadolinium and Uranium onto Nontronite and Goethite

“…On the other hand, it was quite possible to describe the behavior of the binary Nd-goethite system using the modified diffuse double-layer (DDL) model of Dzombak and Morel (1990). A blind modeling approach similar to the one described by Richter et al (2005) was employed, in which all the parameters required for the modeling were either taken from previous experimental studies or were estimated. For details see Armstrong (2005).…”