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green-malachite-dye-adsorption
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FeCl2/FeCl3 perlite nanoparticles as a novel magnetic material for adsorption of green malachite dye
, Article Arabian Journal for Science and Engineering ; Volume 39, Issue 5 , May , 2014 , Pages 3383-3392 ; ISSN: 13198025 ; Doulati Ardejani, F ; Badii, K ; Seifpanahi Shabani, K ; Mousavi, S. E ; Sharif University of Technology
Abstract
In this research FeCl2/FeCl3/Perlite magnetic nanoparticles (FeCl2/FeCl3/PMNs), as a novel magnetic nanocomposite adsorbent was used for the removal of green malachite (GM) dye from aqueous solution in a batch and fixed bed column. Firstly, FeCl2/FeCl3/PMNs adsorption properties were investigated. Therefore, the solution of FeCl2·4H2O and FeCl3·6H2O by ratio 2/1 was mixed with perlite nanoparticles. The study investigates the effect of process parameters such as pH, adsorbent dosage, contact time and GM dye initial concentration. Next, GM dye was quantitatively evaluated by using the Langmuir, Freundlich and BET isotherms and pseudo-first- and pseudo-second-order kinetic model. The...