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The results exhibited rapid Pb(II) adsorption by the nanocomposite in the first five min. Adsorption equilibrium and kinetic experiments were run in batch system under different conditions of pH, adsorbent dose, competitive cations, contact time and temperature. The produced nanocomposite was investigated using, SEM-EDX, XRD, and FTIR analyses before and after Pb adsorption. Novel metal based nanocomposite for rapid and efficient removal of lead from contaminated wastewater sorption kinetics, thermodynamics and mechanismsĠ Departments of Soil and Water Sciences, College of Agriculture (Elshatby), Alexandria University, Alexandria 21545, Egyptġ Regional Center for Food and Feed, Agricultural Research Center, AlexandriaĪ sol-gel method was utilized to prepare a novel nanocomposite adsorbent (nMgO/bentonite) and was tested for Pb(II) removal from aqueous solutions. Lead adsorption mechanisms by the nanocomposite were proposed and discussed. The thermodynamic parameters of Pb(II) adsorption by the nanocomposite affirm the spontaneous and endothermic nature of the adsorption process. The Langmuir sorption capacity of the nanocomposite for Pb(II) increased from 75 to 145 mg g−1 with increasing temperature from 287 to 307 K. Moreover, the highest quantity of Pb(II) uptake was achieved at temperature of 307 K and pH 9.
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The calculated Langmuir maximum adsorption capacity (qmax) value of nanocomposite (75 mg g−1) was 4.5 times higher than that of bentonite (16.66 mg g−1).
![predict the precipitate that forms when aqueous predict the precipitate that forms when aqueous](https://img.homeworklib.com/questions/e5de00c0-755b-11ea-abb7-c5eb1a14316a.png)
Experimental lead adsorption equilibrium and kinetics data fitted well to Langmuir and power function models, respectively as indicated from the lowest standard error (SE) values. The produced nanocomposite was investigated using, SEM–EDX, XRD, and FTIR analyses before and after Pb adsorption.
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PREPARATION AND APPLICATION OF GLUTARALDEHYDE CROSS-LINKED CHITOSAN COATED BENTONITE CLAY CAPSULES: CHROMIUM(VI) REMOVAL FROM AQUEOUS SOLUTIONĪ sol–gel method was utilized to prepare a novel nanocomposite adsorbent (nMgO/bentonite) and was tested for Pb(II) removal from aqueous solutions. PREPARATION AND APPLICATION OF GLUTARALDEHYDE CROSS-LINKED CHITOSAN COATED. Fe3O4/AC nanocomposite as a novel nano adsorbent for effective removal of cationic dye: Process optimization based on Taguchi design method, kinetics, equilibrium and thermodynamics Synthesis, characterization and application of Lanthanide metal-ion-doped TiO2/bentonite nanocomposite for removal of Lead (II) and Cadmium (II) from aquatic mediaįe3O4/AC nanocomposite as a novel nano adsorbent for effective removal of. Synthesis, characterization and application of Lanthanide metal-ion-doped. Heavy metal removal from industrial effluent using bio-sorbent blends Heavy metal removal from industrial effluent using bio-sorbent blends Adsorption of Rhodamine 6G and humic acids on composite bentonite–alginate in single and binary systems Removal of lead from aqueous solutions by a poly(acrylic acid)/bentonite nanocompositeĪdsorption of Rhodamine 6G and humic acids on composite bentonite–alginate in. Removal of lead from aqueous solutions by a poly(acrylic acid)/bentonite.