Study On The Adsorption Of Pb Zn Cu Ni And Cd By Modified Ligand In A Single Component Aqueous

Pdf Study On The Adsorption Of Pb Zn Cu Ni And Cd By M Thermodynamic parameters such as gibb's free energy change (Δg o), enthalpy change (Δh o), and entropy change (Δs o) were calculated and the results showed that the adsorption of pb, cu, ni, zn, and cd ions onto fgcx is spontaneous and endothermic in nature. regeneration of the spent adsorbent was efficient for the considered metal ions. Pdf | on oct 13, 2020, e igberase and others published study on the adsorption of pb, zn, cu, ni, and cd by modified ligand in a single component aqueous solution: equilibrium, kinetic.

Study On The Adsorption Of Pb Zn Cu Ni And Cd By Modifi The adsorption of pb, cu, ni, zn, and cd was dependent on ph, contact time, adsorbent dosage, initial concentration, agitation speed, and ionic strength. the binding of these metal ions was observed to be a feasible, spontaneous, and endothermic process and corresponds with the langmuir and dkr isotherm model, while some metals were in agreement with freundlich and temkin model. Study on the adsorption of pb, zn, cu, ni, and cd by modified ligand in a single component aqueous solution: equilibrium, kinetic, thermodynamic, and desorpt. Atomic adsorption spectrophotometer (varian spectraa 10) was applied in determining the amount of metal ions adsorbed. 2.2. adsorbate preparation. the stock solutions of cu2 , cd2 ,zn2 ,pb2 ,andni2 were obtained by separately preparing a calculated mass of cuso4⋅5h2 o, cdcl2⋅h2 o, zn(no3)2⋅6h2 o, pb(no3)2, and niso4⋅6h2 o. this stock. Results showed that the adsorption of pb, cu, ni, zn, and cd ions onto fgcx is spontaneous and endothermic in nature. in this investigation, an amino functionalized adsorbent was developed by grafting 4 aminobenzoic acid onto the backbone of cross linked chitosan beads. the 3 sets of beads including chitosan (cx), glutaraldehyde cross linked chitosan (ccx), and 4 aminobenzoic acid grafted.