TY - JOUR ID - 26595 TI - Green Removal of Toxic Pb(II) from Water by a Novel and Recyclable Ag/γ-Fe2O3@r-GO Nanocomposite JO - Iranian Journal of Chemistry and Chemical Engineering JA - IJCCE LA - en SN - 1021-9986 AU - Haerizade, Bibi Narjes AU - Ghavami, Monireh AU - Koohi, Maryam AU - Janitabar Darzi, Simin AU - Rezaee, Nasibeh AU - Kasaei, Mohammad Zaman AD - Young Researchers and Elites Club, Qom Branch, Islamic Azad University, Qom, Iran AD - Industrial and Mechanical Engineering Department, Qazvin Branch, Islamic Azad University, P.O. Box 34185-1416 Qazvin, I.R. IRAN AD - Young Researchers and Elites Club, North Tehran Branch, Islamic Azad University, Tehran, Iran AD - Nuclear Science and Technology Research Institute, 11365-8486, Tehran, Iran AD - Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran Y1 - 2018 PY - 2018 VL - 37 IS - 1 SP - 29 EP - 37 KW - Pb(II) KW - Ag/γ-Fe2O3@GO KW - adsorbent KW - Adsorption isotherms KW - Batch KW - Removal DO - 10.30492/ijcce.2018.26595 N2 - Toxic leadions removed efficiently from water by a newly fabricated, magnetically recyclable, antibacterial nano-Ag/γ-Fe2O3@GOadsorbent, at ambient and teh physiological pH=7. Teh adsorption depends on teh adsorbent dosage, initial Pb(II)concentration, pH and teh contact time. Teh optimum removal efficiency of teh leadion is found to be 93.1% wif a dosage rate of 20 mg/L, in 40 minutes, at pH 5 (to 14). Equilibrium data fits well wif teh Langmuir and Freundlich models wif a maximum adsorption capacity of 90.91 mg/g of Pb(II) per 20 mg/L of Ag/γ-Fe2O3@GO. Teh removal/uptake mechanism involves interaction between Pb(II) and teh oxide/hydroxyl layer around Ag/γ-Fe2O3@rGO, in teh contaminated water medium.  UR - https://ijcce.ac.ir/article_26595.html L1 - https://ijcce.ac.ir/article_26595_a7765af64e037303c6f37f2bb53e90ba.pdf ER -