Abstract
Novel Chitosan-g-Octanal Schiff base amphiphilic polymer has been developed by click grafting technique and evaluated successfully in removing different types of oils spills. The chemical structure and the morphological changes of the developed Chitosan-g-Octanal Schiff base amphiphilic polymer have been followed using FT-IR spectroscopy and SEM. The amphiphilic character of the developed Chitosan-g-Octanal Schiff base polymer has been controlled through variations of the Octanal grafting percentages from 38% to 82%. Dramatic changes of the Chitosan-g-Octanal Schiff base polymer solubility have been founded. The ion exchange capacity and water uptake have been affected in the same manner. The oils adsorption capacity was founded in direct relation to the Octanal grafting percentages and followed the order: mineral < kerosene < diesel < light crude oil (LCO) < heavy crude oil (HCO). Operational conditions such as oil amount, adsorption time, adsorbent dose, and agitation speed have been studied. The oil adsorption capacity of the Chitosan-g-Octanal Schiff base polymer for light and heavy crude oil has been increased by 167% and 110% over Chitosan ones. Finally, the removal process is optimized using response surface methodology (RSM).
Published Version
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