Synthesis and characterization of polyaniline-based biocomposites and their application for effective removal of Orange G dye using adsorption in dynamic regime

A polyaniline-modified almond (PANI@AS) and walnut shells (PANI@WS) biocomposites were designed and prepared via the in situ chemical polymerization in this investigation. SEM-EDX, FT-IR, and potentiometric titration were combined to analyze the texture and chemical structure of the as-synthetized PANI@AS and PANI@WS biocomposites. A dynamic adsorption process was employed to test the as-prepared biocomposite adsorbent performance to adsorb Orange G (OG) dye from effluents. The phenomenon of adsorption of OG on the as-prepared biocomposites has been found dependent on various operating conditions. Hence, this finding disclosed the suitable capability employment of PANI@WS and PANI@AS biocomposites for treating wastewater.

Automated summary

In this study, polyaniline-modified almond and walnut shell biocomposites were designed and prepared through in situ chemical polymerization. The performance of the prepared biocomposite adsorbent in adsorbing an Orange G dye from effluents was tested using a dynamic adsorption process. The findings suggest that these biocomposites have the potential for treating wastewater.