Magnetic bio-composite based on zirconium and chitosan modified activated carbon from peanut husk with enhanced antibacterial and adsorptive potential for alizarin red and congo red in wastewater.

Creating new adsorbents is crucial for removing contaminants from water due to increased industrialization, which has worsened water pollution in recent years. In this study, a magnetic biocomposite, Zirconium (Zr)-doped chitosan (CS)-coated iron oxide nanoparticles (FeO-NPs)-peanut husk (PH)-based activated carbon (AC) (Zr-CS/FeO-NPs@PH-AC), was synthesized for efficient removal of alizarin red (AR) and congo red (CR) dyes, alongside antibacterial applications. Characterization via scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) analysis revealed micropores and mesopores development due to chemical activation of PH biomaterial and FeO-NPs addition.

Studies on some biological aspects of Culex pipiens and Culex quinquefasciatus (Diptera: Culicidae) infected with Hepatozoon sp. harboured by the Saudian lizard Uromastyx microlepis.

Laboratory observations revealed that both C. pipiens and C. quinquefasciatus could harbour the parasitic Hepatozoon, while only Cx.