http://libir.tmu.edu.tw/bitstream/987654321/43034/1/4.pdf

Review of second-order models for adsorption systems.

Removal of chelated heavy metals from aqueous solution: A review of current methods and mechanisms

In this study, chitosan was crosslinked using the complexing agent N-N′-[bis(2-hydroxy-3-formyl-5-methylbenzyl-dimethyl)]-ethylenediamine (H2fmbme). The chemical modification was confirmed by Raman spectroscopy and thermogravimetric analysis (TGA). The new chelating polymer was used in batch processes to study Cu(II) ion adsorption in aqueous solution. The results showed that adsorption was dependent on the pH of the solution, with a maximum capacity at around pH 6.0. The adsorption kinetics data were best fitted with the pseudo second-order model, which gave a correlation coefficient of 0.999 and a 1.53% deviation between experimental and calculated qe values. The adsorption equilibrium data were fitted with the Langmuir isotherm (R = 0.999), which revealed that the maximum capacity for monolayer saturation was 113.6 mg Cu(II) per gram of the new adsorbent material (1.79 mmol/g).

Chitosan crosslinked with a metal complexing agent: Synthesis, characterization and copper(II) ions adsorption

Magnesium-zinc ferrites as magnetic adsorbents for Cr(VI) and Ni(II) ions removal: Cation distribution and antistructure modeling

Copper(II)–EDTA sorption onto chitosan and its regeneration applying electrolysis

Spent electroless nickel plating solutions contain Ni(II)-citrate complexes which are hazardous to the environment. These complexes can be removed by using chitosan as a sorbent. Kinetic investigat...

O. Gyliené

Papers

Sorption of Ni(II)-citrate complex from electroless nickel plating solutions onto chitosan