Activated lignin‒chitosan extruded blends for efficient adsorption of methylene blue

Ahmad B. Albadarin, Maurice N. Collins, Mu Naushad, Saeed Shirazian, Gavin Walker, Chirangano Mangwandi

Research output: Contribution to journalArticle

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Abstract

This work investigates the production of activated lignin-chitosan extruded (ALiCE) pellets with controlled particle size distribution (almost spherical: dp ~500‒1000µm) for efficient methylene blue adsorption. The novel preparation method employed in this study successfully produced activated lignin-chitosan pellets. Structural and morphological characterizations were performed using BET, FTIR and SEM-EDX analyses. The influence of contact time, solution pH, ionic strength, initial adsorbate concentration and desorption studies was investigated. The experimental data fitted well with the Langmuir isotherm (R2 = 0.997), yielding a maximum adsorption capacity of 36.25mg/g. The kinetic data indicated that methylene blue (MB) adsorption onto ALiCE can be represented by the pseudo second-order-model with intraparticle processes initially controlling the process of MB adsorption. Overall, these results indicate that the novel ALiCE offers great potential for removing cationic organic pollutants from rivers and streams.
Original languageEnglish
JournalChemical Engineering Journal
Early online date20 Aug 2016
DOIs
Publication statusEarly online date - 20 Aug 2016

Fingerprint

Lignin
Methylene Blue
Chitosan
lignin
adsorption
Adsorption
Organic pollutants
Adsorbates
Ionic strength
organic pollutant
Particle size analysis
Contacts (fluid mechanics)
Isotherms
Energy dispersive spectroscopy
Desorption
desorption
isotherm
Rivers
scanning electron microscopy
particle size

Keywords

  • Adsorption
  • Blends Extrusion
  • Chitosan
  • Lignin
  • Dyes

Cite this

Albadarin, Ahmad B. ; Collins, Maurice N. ; Naushad, Mu ; Shirazian, Saeed ; Walker, Gavin ; Mangwandi, Chirangano. / Activated lignin‒chitosan extruded blends for efficient adsorption of methylene blue. In: Chemical Engineering Journal. 2016.
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abstract = "This work investigates the production of activated lignin-chitosan extruded (ALiCE) pellets with controlled particle size distribution (almost spherical: dp ~500‒1000µm) for efficient methylene blue adsorption. The novel preparation method employed in this study successfully produced activated lignin-chitosan pellets. Structural and morphological characterizations were performed using BET, FTIR and SEM-EDX analyses. The influence of contact time, solution pH, ionic strength, initial adsorbate concentration and desorption studies was investigated. The experimental data fitted well with the Langmuir isotherm (R2 = 0.997), yielding a maximum adsorption capacity of 36.25mg/g. The kinetic data indicated that methylene blue (MB) adsorption onto ALiCE can be represented by the pseudo second-order-model with intraparticle processes initially controlling the process of MB adsorption. Overall, these results indicate that the novel ALiCE offers great potential for removing cationic organic pollutants from rivers and streams.",
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Activated lignin‒chitosan extruded blends for efficient adsorption of methylene blue. / Albadarin, Ahmad B.; Collins, Maurice N.; Naushad, Mu; Shirazian, Saeed ; Walker, Gavin; Mangwandi, Chirangano.

In: Chemical Engineering Journal, 20.08.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Activated lignin‒chitosan extruded blends for efficient adsorption of methylene blue

AU - Albadarin, Ahmad B.

AU - Collins, Maurice N.

AU - Naushad, Mu

AU - Shirazian, Saeed

AU - Walker, Gavin

AU - Mangwandi, Chirangano

PY - 2016/8/20

Y1 - 2016/8/20

N2 - This work investigates the production of activated lignin-chitosan extruded (ALiCE) pellets with controlled particle size distribution (almost spherical: dp ~500‒1000µm) for efficient methylene blue adsorption. The novel preparation method employed in this study successfully produced activated lignin-chitosan pellets. Structural and morphological characterizations were performed using BET, FTIR and SEM-EDX analyses. The influence of contact time, solution pH, ionic strength, initial adsorbate concentration and desorption studies was investigated. The experimental data fitted well with the Langmuir isotherm (R2 = 0.997), yielding a maximum adsorption capacity of 36.25mg/g. The kinetic data indicated that methylene blue (MB) adsorption onto ALiCE can be represented by the pseudo second-order-model with intraparticle processes initially controlling the process of MB adsorption. Overall, these results indicate that the novel ALiCE offers great potential for removing cationic organic pollutants from rivers and streams.

AB - This work investigates the production of activated lignin-chitosan extruded (ALiCE) pellets with controlled particle size distribution (almost spherical: dp ~500‒1000µm) for efficient methylene blue adsorption. The novel preparation method employed in this study successfully produced activated lignin-chitosan pellets. Structural and morphological characterizations were performed using BET, FTIR and SEM-EDX analyses. The influence of contact time, solution pH, ionic strength, initial adsorbate concentration and desorption studies was investigated. The experimental data fitted well with the Langmuir isotherm (R2 = 0.997), yielding a maximum adsorption capacity of 36.25mg/g. The kinetic data indicated that methylene blue (MB) adsorption onto ALiCE can be represented by the pseudo second-order-model with intraparticle processes initially controlling the process of MB adsorption. Overall, these results indicate that the novel ALiCE offers great potential for removing cationic organic pollutants from rivers and streams.

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