Enhanced metal adsorption on solid suspensions by organic molecules

Combined effect of co-existing heavy metals and organophosphate pesticide on adsorption of atrazine to river sediments

“…The absorbance of some peaks changed after the absorption of AT, suggesting that some groups in SSs and NSCSs interact with AT, cadmium/copper, and Ma. As the metals are in an oxide form, their interactions with organic pollutants such as AT or Ma in SSs (NSCSs) in the co-existing systems are probably weak; then, physisorption would be the main part of the adsorption mechanism, even though chemical reactions could also occur [42]. For the IR absorbance at 3,426 cm −1 of O-H or N-H in SSs in the systems, adsorption of AT without any additive, the adsorption of AT in the presence of cadmium has a strong intensity based on .…”

Adsorption of naphthalene onto loess soil of Northwestern China

“…Naphthalene is an important raw material for petrochemical, coal, and chemical industries, and is the simplest kind of PAHs, frequently found in the environment, and has reasonably high solubility in water, so it is the appropriate object for study. 3,8,15,16 Adsorption of PAHs is the first and crucial process deciding their toxicity, bioavailability, mobility, and fate in soils. The adsorption of PAHs to solid phase in the soil usually restrains its mobility or bioavailability to microbial degradation.…”

“…20 Some studies pointed out that the adsorption behavior of PAHs in soil is not only relevant to soil properties such as organic carbon content, but also influenced by PAHs physical characters such as octanol-water partition coefficient, molecular length, solubility, and so on. 21,22 Some people studied the adsorption kinetics of naphthalene, 9,16,23,24 but most of them just monitor the time dependence of adsorbed amounts of naphthalene.…”