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Adsorption behaviors of fulvic acid (FA) and humic acid (HA) on kaolinite, smectite and vermiculite were investigated. To explore the adsorption mechanism, characterization of both the adsorption FA/HA-clay complexes and suspensions was conducted by utilizing multiple analytical techniques including liquid-state 1 H nuclear magnetic resonance spectroscopy, high performance size exclusion chromatography,...
Humic substances such as fulvic acid (FA) and humic acid (HA) exist universally in the environment and play an important role in the interfacial reactions of contaminants. In this study, influences of surface-coated FA and HA on the adsorption of metal cations of Cu(II), Pb(II) and Zn(II) on SiO 2 nanoparticles (nano-SiO 2 , 20nm) were investigated. The results showed that nano-SiO...
Information on the interaction of nanoparticles with natural organic matter (NOM) is essential for understanding their environmental impacts. In this study the adsorption and desorption of humic acids (HA) and fulvic acids (FA) on SiO 2 particles in size of 20, 100 and 500nm were investigated. The adsorption of HA and FA on 20nm SiO 2 was much stronger compared with their adsorption...
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