Abstract
The adsorption selectivity of NH2-MCM-41 follows the Irving-William order observed in transition metal complexes (i.e., Cu2+ > Zn2+ > Co2+ > Ni2+) that is consistent with X-ray photoelectron spectroscopy (XPS) and adsorption thermodynamics data. The interplays between surface aminopropyl ligands and the transition metals are adequately explained by the Pearson HSAB principle, but a multicomponent Freundlich adsorption model based on the single component adsorption data gives a more accurate prediction and description of the metal adsorptions from binary, ternary and quaternary solutions at different pHs and from complex water sources (i.e., tap water, runoff water, and seawater) that contained myriad humic substances, dissolved minerals, and various anions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
