Removal of Erythrosine B using Prosopisspicigera L. wood carbon-iron oxide composite

The present study investigates the removal of Erythrosine B (EB), a neurotoxin and carcinogenic dye from aqueous system using Prosopisspicigera L. wood (PsLw) carbon-iron oxide composite. The adsorbent is well characterized by Fourier Transform Infra Red spectroscopy (FTIR), Scanning Electron Micros...

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Bibliographic Details
Published in:Indian journal of chemical technology 2022-05, Vol.29 (3), p.251
Main Authors: Ramalakshmi, R Dhana, Murugan, M, Jeyabal, V
Format: Article
Language:English
Subjects:
Adsorbates
Adsorbents
Adsorption
Carbon
Carcinogens
Fourier analysis
Fourier transforms
Industrial applications
Iron oxides
Mass transfer
Methylene blue
Neurotoxins
pH effects
Scanning electron microscopy
Surface charge
Surface chemistry
Toxins
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Summary:The present study investigates the removal of Erythrosine B (EB), a neurotoxin and carcinogenic dye from aqueous system using Prosopisspicigera L. wood (PsLw) carbon-iron oxide composite. The adsorbent is well characterized by Fourier Transform Infra Red spectroscopy (FTIR), Scanning Electron Microscope (SEM) for surface morphology, Brunauer-Emmett-Teller nitrogen adsorption method (BET)/methylene blue method for surface area determination and potentiometric methods for surface charge (pHzpc) determination. The removal capacity of the adsorbent has been evaluated by batch method under varying pH, contact time, adsorbate initial concentrations, and in the presence of other ions. The Langmuir maximum adsorption capacity is found to be 487.8 mg/g at pH = 2.0 for an initial concentration of 250 mg/L. The adsorption follows pseudo second order kinetics and fits to Langmuir isotherm. The adsorption is thermodynamically spontaneous and exothermic in nature. Pore diffusion and mass transfer studies are performed. Column mode analysis is applied in the process for industrial applications.
ISSN:0971-457X
0975-0991
DOI:10.56042/ijct.v29i3.53865