Removal of 1-napthylamine using magnetic graphene and magnetic graphene oxide functionalized with Chitosan

A. Rebekah; D. Navadeepthy; G. Bharath; C. Viswanathan; N. Ponpandian

doi:10.1016/j.enmm.2021.100450

Removal of 1-napthylamine using magnetic graphene and magnetic graphene oxide functionalized with Chitosan

A. Rebekah, D. Navadeepthy, G. Bharath, C. Viswanathan, N. Ponpandian

Bharathiar University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Magnetically separable magnetic graphene/chitosan composite (MGC) and magnetic graphene oxide/chitosan (MGOC) composite materials were synthesized by facile hydrothermal technique and simple chemical method respectively. Both the composites were analyzed using various analytical techniques. XRD result clearly reveals the successful formation of the composites. The FESEM images shows the attachment of Fe₃O₄ nanoparticles over the graphene sheets without agglomeration. The composites also possess enough magnetic property responsible for the easiest separation from aqueous solution, which is evident from the magnetic studies. The adsorption of 1-napthylamine on the composites was studied by varying certain parameters such as amount of adsorbent dose, contact time and pH. The adsorption behavior of MGC and MGOC composites are described well by Freundlich isotherm, whereas MGC composite revealed better activity with the maximum adsorption capacity and removal percent of 209.6 mg/g and 99.8 % respectively within a short period of 25 min at neutral pH (pH 7).The enhanced activity of MGC is mainly due to the existence of numerous active sites arising from the reduction of functional groups.

Original language	British English
Article number	100450
Journal	Environmental Nanotechnology, Monitoring and Management
Volume	15
DOIs	https://doi.org/10.1016/j.enmm.2021.100450
State	Published - May 2021

Keywords

1-Napthylamine
Adsorption
Chitosan
Kinetic studies
Nanocomposite
Reduced graphene oxide

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title = "Removal of 1-napthylamine using magnetic graphene and magnetic graphene oxide functionalized with Chitosan",

abstract = "Magnetically separable magnetic graphene/chitosan composite (MGC) and magnetic graphene oxide/chitosan (MGOC) composite materials were synthesized by facile hydrothermal technique and simple chemical method respectively. Both the composites were analyzed using various analytical techniques. XRD result clearly reveals the successful formation of the composites. The FESEM images shows the attachment of Fe3O4 nanoparticles over the graphene sheets without agglomeration. The composites also possess enough magnetic property responsible for the easiest separation from aqueous solution, which is evident from the magnetic studies. The adsorption of 1-napthylamine on the composites was studied by varying certain parameters such as amount of adsorbent dose, contact time and pH. The adsorption behavior of MGC and MGOC composites are described well by Freundlich isotherm, whereas MGC composite revealed better activity with the maximum adsorption capacity and removal percent of 209.6 mg/g and 99.8 % respectively within a short period of 25 min at neutral pH (pH 7).The enhanced activity of MGC is mainly due to the existence of numerous active sites arising from the reduction of functional groups.",

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author = "A. Rebekah and D. Navadeepthy and G. Bharath and C. Viswanathan and N. Ponpandian",

note = "Funding Information: The funding departments DST-PURSE, DST-FIST and UGC-SAP, Government of India are acknowledged for providing instrumental facilities in our Department. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

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doi = "10.1016/j.enmm.2021.100450",

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AU - Rebekah, A.

AU - Navadeepthy, D.

AU - Bharath, G.

AU - Viswanathan, C.

AU - Ponpandian, N.

N1 - Funding Information: The funding departments DST-PURSE, DST-FIST and UGC-SAP, Government of India are acknowledged for providing instrumental facilities in our Department. Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/5

Y1 - 2021/5

N2 - Magnetically separable magnetic graphene/chitosan composite (MGC) and magnetic graphene oxide/chitosan (MGOC) composite materials were synthesized by facile hydrothermal technique and simple chemical method respectively. Both the composites were analyzed using various analytical techniques. XRD result clearly reveals the successful formation of the composites. The FESEM images shows the attachment of Fe3O4 nanoparticles over the graphene sheets without agglomeration. The composites also possess enough magnetic property responsible for the easiest separation from aqueous solution, which is evident from the magnetic studies. The adsorption of 1-napthylamine on the composites was studied by varying certain parameters such as amount of adsorbent dose, contact time and pH. The adsorption behavior of MGC and MGOC composites are described well by Freundlich isotherm, whereas MGC composite revealed better activity with the maximum adsorption capacity and removal percent of 209.6 mg/g and 99.8 % respectively within a short period of 25 min at neutral pH (pH 7).The enhanced activity of MGC is mainly due to the existence of numerous active sites arising from the reduction of functional groups.

AB - Magnetically separable magnetic graphene/chitosan composite (MGC) and magnetic graphene oxide/chitosan (MGOC) composite materials were synthesized by facile hydrothermal technique and simple chemical method respectively. Both the composites were analyzed using various analytical techniques. XRD result clearly reveals the successful formation of the composites. The FESEM images shows the attachment of Fe3O4 nanoparticles over the graphene sheets without agglomeration. The composites also possess enough magnetic property responsible for the easiest separation from aqueous solution, which is evident from the magnetic studies. The adsorption of 1-napthylamine on the composites was studied by varying certain parameters such as amount of adsorbent dose, contact time and pH. The adsorption behavior of MGC and MGOC composites are described well by Freundlich isotherm, whereas MGC composite revealed better activity with the maximum adsorption capacity and removal percent of 209.6 mg/g and 99.8 % respectively within a short period of 25 min at neutral pH (pH 7).The enhanced activity of MGC is mainly due to the existence of numerous active sites arising from the reduction of functional groups.

KW - 1-Napthylamine

KW - Adsorption

KW - Chitosan

KW - Kinetic studies

KW - Nanocomposite

KW - Reduced graphene oxide

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ER -

Removal of 1-napthylamine using magnetic graphene and magnetic graphene oxide functionalized with Chitosan

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