Process and adsorbent for removal of Pb (II) and Hg (II) ions from aqueous medium using thiol functionalized cobalt ferrite magnetic nanoparticles

摘要

the invention belongs to the field of processes for the removal of ions from aqueous media, particularly for the removal of pb (ii), and hg (ii) ions from aqueous medium using magnetic nanoparticles tiolno funkcionaliziranih cobalt ferrite as well as an adsorbent prepared by this process.the process of pb (ii), and hg (ii) ions from aqueous medium using tiolno funkcionaliziranih cobalt ferrite magnetic nanoparticles, since in this.the surface modification of cobalt ferrite magnetic nanoparticles (cofe204) carried out by the combination of tetraetoksi silana (teos) and 3 - merkaptopropil trimetoksisilana (mptms) in different mnou017einskih ratios r = (h2o) / (teos) and p = (h2o) / (mptms) and the variation of process parametersthe reaction time in the range 1 hours to 24 hours, and the reaction temperature in the range from room temperature to 50 degrees c, in a manner that ensures that the adsorption of heavy metal ions (pb2 + and hg2 +) in the ph range between ph 3.5 and ph 8, the temperature range between 4 and 80 degrees c, a interv the alu between 15 min and 5dnem and mass adsorbenta between 4 and 40 mg.