Comparative study on effects of pH, electrolytes, and humic acid on the stability of acetic and polyacrylic acid coated magnetite nanoparticles

This study suggested that carboxyl coatings with higher molecular weights and pKa values could stabilize MNPs better due to stronger electrostatic and additional steric repulsion. However, in the presence of HA, these two forces were mainly controlled by adsorbed HA instead of the organic pre-coatings on MNPs.PMID:36720411 | DOI:10.1016/j.chemosphere.2023.137992

Source: Chemosphere - January 31, 2023 Category: Chemistry Authors: Juanjuan Liu Juntao Zhao Stacey M Louie Xubo Gao Ping Zhang Dongli Liang Yandi Hu Source Type: research