A chemically prepared carbon was synthesized from date palm leaflets via sulphuric acid carbonization at 160°C. Adsorption of
ciprofloxacin (CIP) from aqueous solution was investigated in terms of time, pH, concentration, temperature and adsorbent status
(wet and dry). The equilibrium time was found to be 48 hr. The adsorption rate was enhanced by raising the temperature for both
adsorbents, with adsorption data fitting a pseudo second-order model well. The activation energy, Ea, was found to be 17 kJ/mol,
indicating a diffusion-controlled, physical adsorption process. The maximum adsorption was found at initial pH 6. The wet adsorbent
showed faster removal with higher uptake than the dry adsorbent, with increased performance as temperature increased (25–45°C). The
equilibrium data were found to fit the Langmuir model better than the Freundlich model. The thermodynamic parameters showed that
the adsorption process is spontaneous and endothermic. The adsorption mechanism is mainly related to cation exchange and hydrogen
bonding.
A chemically prepared carbon was synthesized from date palm leaflets via sulphuric acid carbonization at 160°C. Adsorption ofciprofloxacin (CIP) from aqueous solution was investigated in terms of time, pH, concentration, temperature and adsorbent status(wet and dry). The equilibrium time was found to be 48 hr. The adsorption rate was enhanced by raising the temperature for bothadsorbents, with adsorption data fitting a pseudo second-order model well. The activation energy, Ea, was found to be 17 kJ/mol,indicating a diffusion-controlled, physical adsorption process. The maximum adsorption was found at initial pH 6. The wet adsorbentshowed faster removal with higher uptake than the dry adsorbent, with increased performance as temperature increased (25–45°C). Theequilibrium data were found to fit the Langmuir model better than the Freundlich model. The thermodynamic parameters showed thatthe adsorption process is spontaneous and endothermic. The adsorption mechanism is mainly related to cation exchange and hydrogenbonding.
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