ADSORPTION OF CRYSTAL VIOLET DYE ONTO MODIFIED ASH
Journal Title: BULETINUL INSTITUTULUI POLITEHNIC DIN IASI, CHIMIE SI INGINERIE CHIMICA - Year 2016, Vol 62, Issue 1
Abstract
In the present study, the dye adsorption from aqueous solution, using available resources such as crystal violet as model colorant and ash/modified ash as low cost sorbent from a local power plant. The adsorbent was prepared by the alkaline method and investigated using scanning electron microscopy (SEM-EDX), X-ray diffraction (XRD) and Brunauer- Emmett - Teller (BET) methods. The adsorbent in this study had a specific surface area of 41 m2 ·g-1 . The influence of several experimental conditions (initial pH, adsorbent dose, initial dye concentration, contact time) on dye removal rate was determined via batch adsorption experiments. The highest dye removal rate obtained was about 92% at pH = 10 and ambient temperature. The results obtained in this study confirm the potential of modified ash to be used as efficient adsorbent for the removal of crystal violet dye from aqueous solution.
Authors and Affiliations
MARIA HARJA, GABRIELA CIOBANU, LIDIA FAVIER, LAURA BULGARIU, LĂCRĂMIOARA RUSU
Keywords
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