Removal of Cu2+, Pb2+ and Cr6+ From Aqueous Solutions Using a Chitosan/Graphene Oxide Composite Nanofibrous Adsorbent

Removal of Cu2+, Pb2+ and Cr6+ From Aqueous Solutions Using a Chitosan/Graphene Oxide Composite Nanofibrous Adsorbent Publisher

Hadi Najafabadi H¹ ; Irani M² ; Roshanfekr Rad L³ ; Heydari Haratameh A² ; Haririan I^{3, 4}

Show Affiliations

1. Gas Engineering Department, Ahvaz Faculty of Petroleum, Petroleum University of Technology, Ahvaz, Iran
2. Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
3. Medical Biomaterials Research Center (MBRC), Tehran University of Medical Science, Tehran, Iran
4. Department of Pharmaceutics, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran

Source: RSC Advances Published:2015

Abstract

A novel electrospun chitosan/graphene oxide (GO) nanofibrous adsorbent was successfully developed by an electrospinning process. The adsorption behaviors of Cu2+, Pb2+ and Cr6+ metal ions from aqueous solutions using chitosan/GO nanofibers were investigated. The composite nanofibers were characterized by FTIR and SEM and TEM analysis. Kinetic and equilibrium studies showed that the experimental data of Cu2+, Pb2+ and Cr6+ were best described by double-exponential kinetic and Redlich-Peterson isotherm models. The maximum monolayer adsorption capacity of Pb2+, Cu2+and Cr6+ metal ions using chitosan/GO nanofibers was found to be 461.3, 423.8 and 310.4 mg g-1 at an equilibrium time of 30 min and temperature of 45 °C. Evaluation of the thermodynamic parameters (ΔG° < 0, ΔH° > 0 and ΔS° > 0) showed that the nature of the metal ions sorption by chitosan/GO nanofibers was endothermic and spontaneous. The reusability studies indicated that the chitosan/GO nanofibers could be reused frequently without almost any significant loss in adsorption performance. This study provides a promising chitosan/GO nanofibrous adsorbent with an efficient adsorption property for heavy metal ions removal. This journal is © The Royal Society of Chemistry 2015.

Style	Citing Format
MLA	Hadi Najafabadi H, et al.. "Removal of Cu2+, Pb2+ and Cr6+ From Aqueous Solutions Using a Chitosan/Graphene Oxide Composite Nanofibrous Adsorbent." RSC Advances, vol. 5, no. 21, 2015, pp. 16532-16539.
APA	Hadi Najafabadi H, Irani M, Roshanfekr Rad L, Heydari Haratameh A, Haririan I (2015). Removal of Cu2+, Pb2+ and Cr6+ From Aqueous Solutions Using a Chitosan/Graphene Oxide Composite Nanofibrous Adsorbent. RSC Advances, 5(21), 16532-16539.
Chicago	Hadi Najafabadi H, Irani M, Roshanfekr Rad L, Heydari Haratameh A, Haririan I. "Removal of Cu2+, Pb2+ and Cr6+ From Aqueous Solutions Using a Chitosan/Graphene Oxide Composite Nanofibrous Adsorbent." RSC Advances 5, no. 21 (2015): 16532-16539.
Harvard	Hadi Najafabadi H et al. (2015) 'Removal of Cu2+, Pb2+ and Cr6+ From Aqueous Solutions Using a Chitosan/Graphene Oxide Composite Nanofibrous Adsorbent', RSC Advances, 5(21), pp. 16532-16539.
Vancouver	Hadi Najafabadi H, Irani M, Roshanfekr Rad L, Heydari Haratameh A, Haririan I. Removal of Cu2+, Pb2+ and Cr6+ From Aqueous Solutions Using a Chitosan/Graphene Oxide Composite Nanofibrous Adsorbent. RSC Advances. 2015;5(21):16532-16539.
BibTex	@article{ author = {Hadi Najafabadi H and Irani M and Roshanfekr Rad L and Heydari Haratameh A and Haririan I}, title = {Removal of Cu2+, Pb2+ and Cr6+ From Aqueous Solutions Using a Chitosan/Graphene Oxide Composite Nanofibrous Adsorbent}, journal = {RSC Advances}, volume = {5}, number = {21}, pages = {16532-16539}, year = {2015} }
RIS	TY - JOUR AU - Hadi Najafabadi H AU - Irani M AU - Roshanfekr Rad L AU - Heydari Haratameh A AU - Haririan I TI - Removal of Cu2+, Pb2+ and Cr6+ From Aqueous Solutions Using a Chitosan/Graphene Oxide Composite Nanofibrous Adsorbent JO - RSC Advances VL - 5 IS - 21 SP - 16532 EP - 16539 PY - 2015 ER -

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