Degradación y adsorción del colorante AZO RR239 en solución acuosa, por partículas de hierro "zero-valente" a nanoescala, inmovilizadas sobre aserrín

Nedher Sánchez; Mario Vazquez; Roberto Torresi

Degradación y adsorción del colorante AZO RR239 en solución acuosa, por partículas de hierro "zero-valente" a nanoescala, inmovilizadas sobre aserrín

Translated title of the contribution: Degradation and adsorption of AZO RR239 dye in aqueous solution by nanoscale zerovalent iron particles immobilized on sawdust

Nedher Sánchez
, Mario Vazquez
, Roberto Torresi

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

3 Scopus citations

Abstract

Carra sawdust pretrated with formaldehyde was used to adsorb RR239 (reactive azo dye) at varying pH and zerovalent iron (ZVI) dosage. Modeling of kinetic results shows that sorption process is best described by the pseudo-second-order model. Batch experiments suggest that the decolorization efficiency was strongly enhanced with the presence of ZVI and low solution pH. The kinetics of dye sorption by mixed sorbent (5 g of sawdust and 180 mg of ZVI) at pH 2.0 was rapid, reaching more than 90% of the total discoloration in three minutes.

Translated title of the contribution	Degradation and adsorption of AZO RR239 dye in aqueous solution by nanoscale zerovalent iron particles immobilized on sawdust
Original language	Spanish
Pages (from-to)	18-25
Number of pages	8
Journal	Revista Facultad de Ingenieria
Issue number	55
State	Published - Sep 2010
Externally published	Yes

Cite this

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title = "Degradaci{\'o}n y adsorci{\'o}n del colorante AZO RR239 en soluci{\'o}n acuosa, por part{\'i}culas de hierro {"}zero-valente{"} a nanoescala, inmovilizadas sobre aserr{\'i}n",

abstract = "Carra sawdust pretrated with formaldehyde was used to adsorb RR239 (reactive azo dye) at varying pH and zerovalent iron (ZVI) dosage. Modeling of kinetic results shows that sorption process is best described by the pseudo-second-order model. Batch experiments suggest that the decolorization efficiency was strongly enhanced with the presence of ZVI and low solution pH. The kinetics of dye sorption by mixed sorbent (5 g of sawdust and 180 mg of ZVI) at pH 2.0 was rapid, reaching more than 90\% of the total discoloration in three minutes.",

keywords = "Azo dye, Kinetics, Pseudo-second order, Sorption, Zerovalent iron particles (ZVI)",

author = "Nedher S{\'a}nchez and Mario Vazquez and Roberto Torresi",

year = "2010",

month = sep,

language = "Espa{\~n}ol",

pages = "18--25",

journal = "Revista Facultad de Ingenieria",

issn = "0120-6230",

number = "55",

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TY - JOUR

T1 - Degradación y adsorción del colorante AZO RR239 en solución acuosa, por partículas de hierro "zero-valente" a nanoescala, inmovilizadas sobre aserrín

AU - Sánchez, Nedher

AU - Vazquez, Mario

AU - Torresi, Roberto

PY - 2010/9

Y1 - 2010/9

N2 - Carra sawdust pretrated with formaldehyde was used to adsorb RR239 (reactive azo dye) at varying pH and zerovalent iron (ZVI) dosage. Modeling of kinetic results shows that sorption process is best described by the pseudo-second-order model. Batch experiments suggest that the decolorization efficiency was strongly enhanced with the presence of ZVI and low solution pH. The kinetics of dye sorption by mixed sorbent (5 g of sawdust and 180 mg of ZVI) at pH 2.0 was rapid, reaching more than 90% of the total discoloration in three minutes.

AB - Carra sawdust pretrated with formaldehyde was used to adsorb RR239 (reactive azo dye) at varying pH and zerovalent iron (ZVI) dosage. Modeling of kinetic results shows that sorption process is best described by the pseudo-second-order model. Batch experiments suggest that the decolorization efficiency was strongly enhanced with the presence of ZVI and low solution pH. The kinetics of dye sorption by mixed sorbent (5 g of sawdust and 180 mg of ZVI) at pH 2.0 was rapid, reaching more than 90% of the total discoloration in three minutes.

KW - Azo dye

KW - Kinetics

KW - Pseudo-second order

KW - Sorption

KW - Zerovalent iron particles (ZVI)

UR - https://www.scopus.com/pages/publications/77956772102

M3 - Artículo

AN - SCOPUS:77956772102

SN - 0120-6230

SP - 18

EP - 25

JO - Revista Facultad de Ingenieria

JF - Revista Facultad de Ingenieria

IS - 55

ER -

Degradación y adsorción del colorante AZO RR239 en solución acuosa, por partículas de hierro "zero-valente" a nanoescala, inmovilizadas sobre aserrín

Abstract

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