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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.

BaO-containing glasses of Bi2O–P2O5-V2O5 are synthesized by a conventional melt-quenching method. The as-prepared samples are first heat-treated at 350 °C overnight, and then heat-treated at 1000 °C for 30 min. The as-prepared samples are studied for their physicochemical properties using FTIR, SEM, and EDX analysis. A study of the as-prepared photocatalytic properties for the degradation of common organic dyes such as RhB under UV light is carried out. The highest rate of degradation (70%) is observed when a Bi(0.5-y)BayP(0.75-0.5y)V(0.75-0.5y)O4.5-3y catalyst with y = 0.1 was used. This sample maintains high photocatalytic activity after three cycles, without any significant decrease.