A thermodynamic study revealed that the process of adsorption was enthalpy-driven and spontaneous in nature. It was found that the adsorption process follows a Freundlich adsorption isotherm and pseudo second order kinetics. The pH PZC of the material was 7.5 and the maximum monolayer adsorption capacity (Q max) was found to be 235.82, 198.09 and 117.34 mg g −1 for BG (at pH 8.0), MO (at pH 6.0) and PBV (at pH 3.0) respectively. The synthesized composite, glutaraldehyde cross-linked chitosan–alginate composite was characterized using spectral techniques and employed as a potential adsorbent for three dyes namely Brilliant green, Methyl orange and Patent Blue V. Chitosan was modified using aniline with the help of formaldehyde crosslinker and then the twizer was further crosslinked with alginate using glutaraldehyde. Alginate and chitosan were pre-treated before being mixed, and the two biopolymers' proportions were also monitored. We present an approach for synthesis of a micro-porous composite of two well-known biopolymers, namely chitosan and alginate, using glutaraldehyde as the cross-linking agent.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |