Article ID Journal Published Year Pages File Type
6974152 Process Safety and Environmental Protection 2018 51 Pages PDF
Abstract
Pecan shell based activated carbon (PSBAC) developed in this work had a high specific surface area (1500 m2/g) and pore volume (0.7 cm3/g). The maximum adsorption capacity of the PSBAC was found to be 41.66 mg/g at 55 mg/L iron(II), pH = 3, 3 g/L adsorbent dose, at 90 min and at 30 °C. Iron(II) adsorption can be best described by the pseudo second order model. The adsorption system was thermodynamically favorable, endothermic and increase in entropy. The experimental data were fitted against common adsorption isotherms and yielded excellent fits in the following order: Temkin > Freundlich > Sips > Halsey Dubinin-Radushkevich > Langmuir > Harkins-Jura > Redlich-Peterson > Elovich.
Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Health and Safety
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