Investigation of the effect of time on polypyrrole adsorbent membrane for nickel metal removal

One of the common methods for removing heavy metals from aqueous solutions is the use of membranes. In this study, a sorbent (polypyrrole) was used to enhance the efficiency of a polyether sulfone membrane in removing nickel metal ions from water. It is worth mentioning that the synthesis method of the polyether sulfone membrane was carried out through surface polymerization. This study was conducted under neutral pH conditions and ambient temperature, with various contact times from zero to ۱۸۰ minutes to investigate the percentage of nickel adsorption in a batch system. The chemical structure of the membrane was characterized using the water contact angle (WCA) test, and the surface morphology was examined using a field emission scanning electron microscope (FESEM). The results indicate that polypyrrole formed on the pure membrane and has the ability to remove nickel ions from the aqueous solution. In this study, it was observed that the adsorption percentage initially increased with the contact time and then reached equilibrium.

کلیدواژه ها:

Interfacial Polymerization ، Polypyrrole ، Adsorbent Membrane ، Nickel