Mohammad Chamani, Homayon Ahmad Panahi, Pejman Tayebi, Mehdi Aminafshar and Ali Asghar Sadeghi
A study was conducted to synthesis a novel adsorbent for enrofloxacin (ENR) adsorption from aqueous solution. We investigated the impacts of different pH and temperature on adsorption capacity. The magnetic (Fe3O4) nanoparticles were prepared by co-precipitation method and modified by 3-mercaptopropyltrimethoxysilane follow by grafting with 1-(N,N-bis-carboxymethyl)amino-3-allylglycerol. The characterizations of prepared magnetic nanoparticles were carried out by Fourier transform infrared spectroscopy and scanning electron microscopy and studied for adsorption and kinetic behavior of enrofloxacin on the grafted nano-adsboent. It was showed, this nanoadsorbent possess highest adsorption capacity at pH 3. Three kinetics model, pseudo-first-order, pseudo-secondorder and intraparticle diffusion were used to study the adsorption mechanism of ENR onto grafted magnetic nanoparticles. The best fitting was obtained by pseudo-second-order model.
