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Title

GREEN REMOVAL OF TOXIC PB(II) FROM WATER BY A NOVEL AND RECYCLABLE AG/γ-FE2O3@R-GO NANOCOMPOSITE

Pages

 Start Page 29 | End Page 37

Keywords

PB (II) 
AG/γ-FE2O3@GO 

Abstract

 Toxic leadions removed efficiently from water by a newly fabricated, magnetically recyclable, antibacterial nano-Ag/g-Fe2O3@GOadsorbent, at ambient and the physiological pH=7. The adsorption depends on the ADSORBENT dosage, initial Pb (II) concentration, pH and the contact time. The optimumremoval efficiency of the leadion is found to be 93.1% with a dosage rateof 20 mg/L, in 40 minutes, at pH 5 (to 14). Equilibrium data fits well with the Langmuir and Freundlichmodels with a maximum adsorption capacity of 90.91 mg/g of Pb (II) per 20 mg/L of Ag/g-Fe2O3@GO. The REMOVAL/uptake mechanism involves interaction between Pb (II) and the oxide/hydroxyl layer around Ag/g-Fe2O3@rGO, in the contaminated water medium.

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