Published March 1, 2017 | Version v1
Journal article Metadata-only

Graphene oxide/Fe3O4/chitosan nanocomposite: a recoverable and recyclable adsorbent for organic dyes removal. Application to methylene blue

Creators

  • 1. School of Chemical Engineering, Hanoi University of Science and Technology, 1 Dai Co Viet Road, Hanoi (Viet Nam)
  • 2. Faculty of Chemistry, Hanoi National University of Education, 136 Xuan Thuy, Hanoi (Viet Nam)

Description

In this research, the potential of chitosan/Fe3O4/graphene oxide (CS/Fe3O4/GO) nanocomposite for efficient removal of methylene blue (MB) as a cationic dye from aqueous solutions was investigated. For this purpose, first, graphene oxide (GO) was prepared from pencil's graphite by Hummer's method, then after, CS/Fe3O4/GO was synthesized via chemical co-precipitation method from a mixture solution of GO, Fe3+, Fe2+ and chitosan. The synthesized CS/Fe3O4/GO was characterized by XRD, VSM and SEM techniques. Also, the various parameters affecting dye removal were investigated. Dye adsorption equilibrium data were fitted well to the Langmuir isotherm rather than Freundlich isotherm. The maximum monolayer capacity ( q max), was calculated from the Langmuir as 30.10 mg · g−1. The results show that, CS/Fe3O4/GO nanocomposite, can be used as a cheap and efficient adsorbent for removal of cationic dyes from aqueous solutions. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/2053-1591/aa6096

Additional details

Identifiers

DOI
10.1088/2053-1591/aa6096;

Publishing Information

Journal Title
Materials Research Express (Online)
Journal Volume
4
Journal Issue
3
Journal Page Range
[9 p.]
ISSN
2053-1591

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
50005749
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ADSORBENTS; AMINO ACIDS; AQUEOUS SOLUTIONS; COMPOSITE MATERIALS; COPRECIPITATION; FERRITES; GRAPHENE; GRAPHITE; IRON OXIDES; ISOTHERMS; METHYLENE BLUE; NANOCOMPOSITES; OLIGOSACCHARIDES; SCANNING ELECTRON MICROSCOPY; VIBRATING SAMPLE MAGNETOMETERS; X-RAY DIFFRACTION
Descriptors DEC
AMINES; ANTI-INFECTIVE AGENTS; ANTIMICROBIAL AGENTS; AZINES; CARBOHYDRATES; CARBON; CARBOXYLIC ACIDS; CHALCOGENIDES; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; DISPERSIONS; DRUGS; ELECTRON MICROSCOPY; ELEMENTS; FERRIMAGNETIC MATERIALS; HALIDES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; HOMOGENEOUS MIXTURES; IRON COMPOUNDS; MAGNETIC MATERIALS; MAGNETOMETERS; MATERIALS; MEASURING INSTRUMENTS; MICROSCOPY; MINERALS; MIXTURES; NANOMATERIALS; NONMETALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHENOTHIAZINES; PRECIPITATION; SACCHARIDES; SCATTERING; SEPARATION PROCESSES; SOLUTIONS; TRANSITION ELEMENT COMPOUNDS