Abstract
A novel chelating surfactant denoted as sodium N-lauroyl ethylenediamine triacetate (N-LED3A) with both surface activity and chelation functions was studied for phenanthrene (PHE) solubilisation ability. The critical micelle concentration (CMC) of N-LED3A was measured, and the effects of the initial N-LED3A concentration, temperature, pH value and coexisting ions (Na+, Ca2+ and Cu2+) on PHE solubilisation by N-LED3A were investigated. The results demonstrated that PHE solubility was efficiently enhanced by N-LED3A, especially with N-LED3A concentrations above the CMC, which was 707 mg L-1 when measured at 25°C. The temperature influenced the apparent PHE solubility slightly and the apparent solubility of PHE was significantly affected by the pH. Na+ and Ca2+ were shown to increase the PHE solubility, while Ca2+ exhibited a better promoting ability than Na+. A suitable quantity of Cu2+ could significantly enhance the solubilisation capacities of N-LED3A at pH 5. The mechanism of the interaction between Cu2+ and N-LED3A was further confirmed by Fourier transform infrared spectroscopy (FTIR). These results reveal that Cu2+ can be chelated with N-LED3A to form a chelate complex. The results implied that N-LED3A had the potential to remediate soils contaminated by both organics and heavy metals.
References
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Institute of Chemistry, Slovak Academy of Sciences
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Articles in the same Issue
- Synthesis and properties of new N,N′-phenyltetrazole podand
- Molecular diagnosis of Pompe disease using MALDI TOF/TOF and 1H NMR
- Erythritol biosynthesis from glycerol by Yarrowia lipolytica yeast: effect of osmotic pressure
- Cloning and expression of two genes coding endo-β-1,4-glucanases from Trichoderma asperellum PQ34 in Pichia pastoris
- Adsorption desulphurisation of dimethyl sulphide using nickel-based Y zeolites pretreated by hydrogen reduction
- Equilibrium and kinetics of wetting hydrophobic microporous membrane in sodium dodecyl benzene sulphonate and diethanolamine aqueous solutions
- Separation of urea adducts in the analysis of complex mineral fertilisers
- Cheese whey tangential filtration using tubular mineral membranes
- Characterization of the quality of novel rye-buckwheat ginger cakes by chemical markers and antioxidant capacity
- A new high-temperature inorganic–organic proton conductor: lanthanum sulfophenyl phosphate
- Membranes with a plasma deposited titanium isopropoxide layer
- Effect of fuel content on formation of zinc aluminate nano and micro-particles synthesised by high rate sol–gel autoignition of glycine-nitrates
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- Physicochemical and excess properties of binary mixtures of (1-alkyl-3-methylimidazoliumchloride/bromide + ethylene glycol) at T = (288.15 to 333.15) K