Abstract
RuO2-ZnO nanocomposite with high adsorption ability of Pb(II) was productively fabricated through mediated pectinose solution. X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy-dispersive X-ray (EDS), pore and surface area characteristics (BET), and Fourier transforms infrared (FTIR) results showed the formation of Ru-doped ZnO with new RuO2 rutile phase. The removal kinetics process was fitted with the pseudo-second-order model. Nevertheless, the adsorption rate is possibly governed by the Pb(II) ions intra-particular diffusion. The average diameter of the nanocomposite was about 32 nm. The fabricated nanopowders have a rapid adsorption equilibrium time of 40 min and excellent competence for Pb(II) ion elimination (184.5 mg g(-1)).