Simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies
In this study, simultaneous adsorption of cationic dyes was investigated by using binary component solutions. Thiourea-modified poly(acrylonitrile-co-acrylic acid) (TMPAA) polymer was used as an adsorbent for uptake of cationic dyes (malachite green, MG and methylene blue, MB) from aqueous solution...
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my.upm.eprints.382632020-05-04T16:09:24Z http://psasir.upm.edu.my/id/eprint/38263/ Simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies Adeyi, Abel Adekanmi Md. Jamil, Siti Nurul Ain Abdullah, Luqman Chuah Choong, Thomas Shean Yaw Lau, Kia Li Abdullah, Mohammad In this study, simultaneous adsorption of cationic dyes was investigated by using binary component solutions. Thiourea-modified poly(acrylonitrile-co-acrylic acid) (TMPAA) polymer was used as an adsorbent for uptake of cationic dyes (malachite green, MG and methylene blue, MB) from aqueous solution in a binary system. Adsorption tests revealed that TMPAA presented high adsorption of MG and MB at higher pH and higher dye concentrations. It suggested that there are strong electrostatic attractions between the surface functional groups of the adsorbent and cationic dyes. The equilibrium analyses explain that both extended Langmuir and extended models are suitable for the description of adsorption data in the binary system. An antagonistic effect was found, probably due to triangular (MG) and linear (MB) molecular structures that mutually hinder the adsorption of both dyes on TMPAA. Besides, the kinetic studies for sorption of MG and MB dyes onto adsorbent were better represented by a pseudo-second-order model, which demonstrates chemisorption between the polymeric TMPAA adsorbent and dye molecules. According to experimental findings, TMPAA is an attractive adsorbent for treatment of wastewater containing multiple cationic dyes. MDPI 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/38263/1/38263.pdf Adeyi, Abel Adekanmi and Md. Jamil, Siti Nurul Ain and Abdullah, Luqman Chuah and Choong, Thomas Shean Yaw and Lau, Kia Li and Abdullah, Mohammad (2019) Simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies. Materials, 12 (18). art. no. 2903. pp. 1-20. ISSN 1996-1944 https://www.mdpi.com/1996-1944/12/18/2903 10.3390/ma12182903 |
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In this study, simultaneous adsorption of cationic dyes was investigated by using binary component solutions. Thiourea-modified poly(acrylonitrile-co-acrylic acid) (TMPAA) polymer was used as an adsorbent for uptake of cationic dyes (malachite green, MG and methylene blue, MB) from aqueous solution in a binary system. Adsorption tests revealed that TMPAA presented high adsorption of MG and MB at higher pH and higher dye concentrations. It suggested that there are strong electrostatic attractions between the surface functional groups of the adsorbent and cationic dyes. The equilibrium analyses explain that both extended Langmuir and extended models are suitable for the description of adsorption data in the binary system. An antagonistic effect was found, probably due to triangular (MG) and linear (MB) molecular structures that mutually hinder the adsorption of both dyes on TMPAA. Besides, the kinetic studies for sorption of MG and MB dyes onto adsorbent were better represented by a pseudo-second-order model, which demonstrates chemisorption between the polymeric TMPAA adsorbent and dye molecules. According to experimental findings, TMPAA is an attractive adsorbent for treatment of wastewater containing multiple cationic dyes. |
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Adeyi, Abel Adekanmi Md. Jamil, Siti Nurul Ain Abdullah, Luqman Chuah Choong, Thomas Shean Yaw Lau, Kia Li Abdullah, Mohammad |
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Adeyi, Abel Adekanmi Md. Jamil, Siti Nurul Ain Abdullah, Luqman Chuah Choong, Thomas Shean Yaw Lau, Kia Li Abdullah, Mohammad Simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies |
author_facet |
Adeyi, Abel Adekanmi Md. Jamil, Siti Nurul Ain Abdullah, Luqman Chuah Choong, Thomas Shean Yaw Lau, Kia Li Abdullah, Mohammad |
author_sort |
Adeyi, Abel Adekanmi |
title |
Simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies |
title_short |
Simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies |
title_full |
Simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies |
title_fullStr |
Simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies |
title_full_unstemmed |
Simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies |
title_sort |
simultaneous adsorption of cationic dyes from binary solutions by thiourea-modified poly(acrylonitrile-co-acrylic acid): detailed isotherm and kinetic studies |
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MDPI |
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2019 |
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http://psasir.upm.edu.my/id/eprint/38263/1/38263.pdf http://psasir.upm.edu.my/id/eprint/38263/ https://www.mdpi.com/1996-1944/12/18/2903 |
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1665895969432010752 |
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