Composite of cellulosic agricultural waste coated with semiconducting polypyrrole as potential dye remover

Víctor M. Ovando-Medina, Paola E. Díaz-Flores, Hugo Martínez-Gutiérrez, Luis A. Moreno-Ruiz, Iveth D. Antonio-Carmona, Martín Hernández-Ordoñez

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A composite was obtained from cellulosic agricultural waste material (Sorghum vulgare) coated with conducting polypyrrole by in situ polymerization using potassium persulfate as chemical oxidant. The composite was characterized by Raman spectroscopy, FTIR spectroscopy, scanning electron microscopy (SEM), and cyclic voltammetry. Aqueous adsorption experiments of methylene blue dye onto the obtained materials at different pH values were conducted. The results showed that this composite is an efficient sorbent for dye removal. The adsorption mechanism was well described by the Langmuir isotherm. The adsorption capacity at neutral pH for uncoated sorghum at an equilibrium concentration (Ce) of methylene blue dye of 10 mg/l was 41.6 mg of dye/g of sorghum and for sorghum/PPy composite was 68.4 mg of dye/gram of composite, which is 1.6 times higher; however, the maxima adsorption capacities were 86.2 and 94.4 mg/g, respectively (only 9.5% more than the uncoated sorghum). It was also observed that at acidic pH for a Ce of 10 mg/l the adsorption capacity of composite was 79.2 mg of dye/gram of composite and the maximum adsorption capacity was 143.5 mg/g (66.4% more than the uncoated sorghum). SEM analysis showed homogeneous coating of cellulosic sorghum material with PPy. Conductivity value of composite was 13.0 × 10-3 S/m. Fabrication of this composite should significantly diminish the cost of dye removal from aqueous solutions with respect to some commercial adsorbents. © 2013 Society of Plastics Engineers.
Original languageAmerican English
Pages (from-to)186-193
Number of pages166
JournalPolymer Composites
DOIs
StatePublished - 1 Jan 2014

Fingerprint

Agricultural wastes
Polypyrroles
Coloring Agents
Dyes
Composite materials
Adsorption
Methylene Blue
polypyrrole
Scanning electron microscopy
Sorbents
Oxidants
Adsorbents
Cyclic voltammetry
Isotherms
Potassium
Raman spectroscopy
Polymerization
Spectroscopy
Plastics
Engineers

Cite this

Ovando-Medina, Víctor M. ; Díaz-Flores, Paola E. ; Martínez-Gutiérrez, Hugo ; Moreno-Ruiz, Luis A. ; Antonio-Carmona, Iveth D. ; Hernández-Ordoñez, Martín. / Composite of cellulosic agricultural waste coated with semiconducting polypyrrole as potential dye remover. In: Polymer Composites. 2014 ; pp. 186-193.
@article{ec80bea496c74599b913328c03bfb3ac,
title = "Composite of cellulosic agricultural waste coated with semiconducting polypyrrole as potential dye remover",
abstract = "A composite was obtained from cellulosic agricultural waste material (Sorghum vulgare) coated with conducting polypyrrole by in situ polymerization using potassium persulfate as chemical oxidant. The composite was characterized by Raman spectroscopy, FTIR spectroscopy, scanning electron microscopy (SEM), and cyclic voltammetry. Aqueous adsorption experiments of methylene blue dye onto the obtained materials at different pH values were conducted. The results showed that this composite is an efficient sorbent for dye removal. The adsorption mechanism was well described by the Langmuir isotherm. The adsorption capacity at neutral pH for uncoated sorghum at an equilibrium concentration (Ce) of methylene blue dye of 10 mg/l was 41.6 mg of dye/g of sorghum and for sorghum/PPy composite was 68.4 mg of dye/gram of composite, which is 1.6 times higher; however, the maxima adsorption capacities were 86.2 and 94.4 mg/g, respectively (only 9.5{\%} more than the uncoated sorghum). It was also observed that at acidic pH for a Ce of 10 mg/l the adsorption capacity of composite was 79.2 mg of dye/gram of composite and the maximum adsorption capacity was 143.5 mg/g (66.4{\%} more than the uncoated sorghum). SEM analysis showed homogeneous coating of cellulosic sorghum material with PPy. Conductivity value of composite was 13.0 × 10-3 S/m. Fabrication of this composite should significantly diminish the cost of dye removal from aqueous solutions with respect to some commercial adsorbents. {\circledC} 2013 Society of Plastics Engineers.",
author = "Ovando-Medina, {V{\'i}ctor M.} and D{\'i}az-Flores, {Paola E.} and Hugo Mart{\'i}nez-Guti{\'e}rrez and Moreno-Ruiz, {Luis A.} and Antonio-Carmona, {Iveth D.} and Mart{\'i}n Hern{\'a}ndez-Ordo{\~n}ez",
year = "2014",
month = "1",
day = "1",
doi = "10.1002/pc.22649",
language = "American English",
pages = "186--193",
journal = "Polymer Composites",
issn = "0272-8397",
publisher = "John Wiley and Sons Inc.",

}

Composite of cellulosic agricultural waste coated with semiconducting polypyrrole as potential dye remover. / Ovando-Medina, Víctor M.; Díaz-Flores, Paola E.; Martínez-Gutiérrez, Hugo; Moreno-Ruiz, Luis A.; Antonio-Carmona, Iveth D.; Hernández-Ordoñez, Martín.

In: Polymer Composites, 01.01.2014, p. 186-193.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Composite of cellulosic agricultural waste coated with semiconducting polypyrrole as potential dye remover

AU - Ovando-Medina, Víctor M.

AU - Díaz-Flores, Paola E.

AU - Martínez-Gutiérrez, Hugo

AU - Moreno-Ruiz, Luis A.

AU - Antonio-Carmona, Iveth D.

AU - Hernández-Ordoñez, Martín

PY - 2014/1/1

Y1 - 2014/1/1

N2 - A composite was obtained from cellulosic agricultural waste material (Sorghum vulgare) coated with conducting polypyrrole by in situ polymerization using potassium persulfate as chemical oxidant. The composite was characterized by Raman spectroscopy, FTIR spectroscopy, scanning electron microscopy (SEM), and cyclic voltammetry. Aqueous adsorption experiments of methylene blue dye onto the obtained materials at different pH values were conducted. The results showed that this composite is an efficient sorbent for dye removal. The adsorption mechanism was well described by the Langmuir isotherm. The adsorption capacity at neutral pH for uncoated sorghum at an equilibrium concentration (Ce) of methylene blue dye of 10 mg/l was 41.6 mg of dye/g of sorghum and for sorghum/PPy composite was 68.4 mg of dye/gram of composite, which is 1.6 times higher; however, the maxima adsorption capacities were 86.2 and 94.4 mg/g, respectively (only 9.5% more than the uncoated sorghum). It was also observed that at acidic pH for a Ce of 10 mg/l the adsorption capacity of composite was 79.2 mg of dye/gram of composite and the maximum adsorption capacity was 143.5 mg/g (66.4% more than the uncoated sorghum). SEM analysis showed homogeneous coating of cellulosic sorghum material with PPy. Conductivity value of composite was 13.0 × 10-3 S/m. Fabrication of this composite should significantly diminish the cost of dye removal from aqueous solutions with respect to some commercial adsorbents. © 2013 Society of Plastics Engineers.

AB - A composite was obtained from cellulosic agricultural waste material (Sorghum vulgare) coated with conducting polypyrrole by in situ polymerization using potassium persulfate as chemical oxidant. The composite was characterized by Raman spectroscopy, FTIR spectroscopy, scanning electron microscopy (SEM), and cyclic voltammetry. Aqueous adsorption experiments of methylene blue dye onto the obtained materials at different pH values were conducted. The results showed that this composite is an efficient sorbent for dye removal. The adsorption mechanism was well described by the Langmuir isotherm. The adsorption capacity at neutral pH for uncoated sorghum at an equilibrium concentration (Ce) of methylene blue dye of 10 mg/l was 41.6 mg of dye/g of sorghum and for sorghum/PPy composite was 68.4 mg of dye/gram of composite, which is 1.6 times higher; however, the maxima adsorption capacities were 86.2 and 94.4 mg/g, respectively (only 9.5% more than the uncoated sorghum). It was also observed that at acidic pH for a Ce of 10 mg/l the adsorption capacity of composite was 79.2 mg of dye/gram of composite and the maximum adsorption capacity was 143.5 mg/g (66.4% more than the uncoated sorghum). SEM analysis showed homogeneous coating of cellulosic sorghum material with PPy. Conductivity value of composite was 13.0 × 10-3 S/m. Fabrication of this composite should significantly diminish the cost of dye removal from aqueous solutions with respect to some commercial adsorbents. © 2013 Society of Plastics Engineers.

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84890309693&origin=inward

UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84890309693&origin=inward

U2 - 10.1002/pc.22649

DO - 10.1002/pc.22649

M3 - Article

SP - 186

EP - 193

JO - Polymer Composites

JF - Polymer Composites

SN - 0272-8397

ER -