Activated Carbon Supported Cobalt as Efficiency Adsorbent: Application Chemical Agricultural pollutant 2,4-D Herbicide Removal from Aqueous Solution
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Date
2017-09-07
Journal Title
Journal ISSN
Volume Title
Publisher
ORIENTAL JOURNAL OF CHEMISTRY
Abstract
In this work, an activated carbon derived from date pits and stems (DPSAC) was prepared
by physical activation under N2 and used as a support of cobalt transition metals, by wetness
impregnation at different Co content and different calcination temperatures. The optimal operator
conditions were 20 wt% cobalt impregnation ratio and 300°C calcination temperature. The grafted
material was characterized by methods: thermo gravimetric analysis (TGA), scanning electron
microscopy (SEM), Fourier transform of infrared spectroscopy (FTIR). The activated carbon
(DPSAC) and grafted activated carbon (Co/DPSAC) were realized on adsorption of 2,4-
dichlorophenoxyacetic acid (2,4-D) from aqueous solution , it was found that the cobalt-grafted
dates pits and stems activated carbon promoted the 2,4-D adsorption kinetics, The Langmuir and
Freundlich isotherms models were applied for the adsorption results. The rate of adsorption of 2,4-
D onto (DPSAC) and (Co/DPSAC) were estimated and described using a pseudo-second order
model.