Radiation preparation of PVA/CMC copolymers and their application in removal of dyes

Manal F.Abou Taleb; H. L.Abd El-Mohdy; H. A.Abd El-Rehim

doi:10.1016/j.jhazmat.2009.02.001

Radiation preparation of PVA/CMC copolymers and their application in removal of dyes

Manal F.Abou Taleb, H. L.Abd El-Mohdy, H. A.Abd El-Rehim

Egyptian Atomic Energy Authority

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

136 Scopus citations

Abstract

Copolymer hydrogels composed of poly(vinyl alcohol) (PVA) and carboxymethyl cellulose (CMC) was prepared by using electron beam irradiation as crosslinking agent. The copolymers were characterized by FTIR and the physical properties such as gelation. The thermal behavior and swelling properties of the prepared hydrogels were investigated as a function of PVA/CMC composition. The factors effecting adsorption capacity of acid, reactive and direct dyes onto PVA/CMC hydrogel, such as CMC content, pH value of the dye solution, initial concentration and adsorption temperature for dyes were investigated. Thermodynamic study indicated that the values the negative values of ΔH suggested that the adsorption process is exothermic. The value of ΔH (38.81 kJ/mol) suggested that the electrostatic interaction is the dominant mechanism for the adsorption of dyes on hydrogel.

Original language	English
Pages (from-to)	68-75
Number of pages	8
Journal	Journal of Hazardous Materials
Volume	168
Issue number	1
DOIs	https://doi.org/10.1016/j.jhazmat.2009.02.001
State	Published - 30 Aug 2009
Externally published	Yes

Keywords

Adsorption
Carboxy-methyl cellulose
Copolymer
Dyes
Irradiation
Polyvinyl alcohol

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10.1016/j.jhazmat.2009.02.001

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title = "Radiation preparation of PVA/CMC copolymers and their application in removal of dyes",

abstract = "Copolymer hydrogels composed of poly(vinyl alcohol) (PVA) and carboxymethyl cellulose (CMC) was prepared by using electron beam irradiation as crosslinking agent. The copolymers were characterized by FTIR and the physical properties such as gelation. The thermal behavior and swelling properties of the prepared hydrogels were investigated as a function of PVA/CMC composition. The factors effecting adsorption capacity of acid, reactive and direct dyes onto PVA/CMC hydrogel, such as CMC content, pH value of the dye solution, initial concentration and adsorption temperature for dyes were investigated. Thermodynamic study indicated that the values the negative values of ΔH suggested that the adsorption process is exothermic. The value of ΔH (38.81 kJ/mol) suggested that the electrostatic interaction is the dominant mechanism for the adsorption of dyes on hydrogel.",

keywords = "Adsorption, Carboxy-methyl cellulose, Copolymer, Dyes, Irradiation, Polyvinyl alcohol",

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doi = "10.1016/j.jhazmat.2009.02.001",

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T1 - Radiation preparation of PVA/CMC copolymers and their application in removal of dyes

AU - Taleb, Manal F.Abou

AU - El-Mohdy, H. L.Abd

AU - El-Rehim, H. A.Abd

PY - 2009/8/30

Y1 - 2009/8/30

N2 - Copolymer hydrogels composed of poly(vinyl alcohol) (PVA) and carboxymethyl cellulose (CMC) was prepared by using electron beam irradiation as crosslinking agent. The copolymers were characterized by FTIR and the physical properties such as gelation. The thermal behavior and swelling properties of the prepared hydrogels were investigated as a function of PVA/CMC composition. The factors effecting adsorption capacity of acid, reactive and direct dyes onto PVA/CMC hydrogel, such as CMC content, pH value of the dye solution, initial concentration and adsorption temperature for dyes were investigated. Thermodynamic study indicated that the values the negative values of ΔH suggested that the adsorption process is exothermic. The value of ΔH (38.81 kJ/mol) suggested that the electrostatic interaction is the dominant mechanism for the adsorption of dyes on hydrogel.

AB - Copolymer hydrogels composed of poly(vinyl alcohol) (PVA) and carboxymethyl cellulose (CMC) was prepared by using electron beam irradiation as crosslinking agent. The copolymers were characterized by FTIR and the physical properties such as gelation. The thermal behavior and swelling properties of the prepared hydrogels were investigated as a function of PVA/CMC composition. The factors effecting adsorption capacity of acid, reactive and direct dyes onto PVA/CMC hydrogel, such as CMC content, pH value of the dye solution, initial concentration and adsorption temperature for dyes were investigated. Thermodynamic study indicated that the values the negative values of ΔH suggested that the adsorption process is exothermic. The value of ΔH (38.81 kJ/mol) suggested that the electrostatic interaction is the dominant mechanism for the adsorption of dyes on hydrogel.

KW - Adsorption

KW - Carboxy-methyl cellulose

KW - Copolymer

KW - Dyes

KW - Irradiation

KW - Polyvinyl alcohol

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U2 - 10.1016/j.jhazmat.2009.02.001

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SN - 0304-3894

VL - 168

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JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

IS - 1

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Radiation preparation of PVA/CMC copolymers and their application in removal of dyes

Abstract

Keywords

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