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Co-adsorption of an anionic dye in the presence of a cationic dye and a heavy metal ion by graphene oxide and photoreduced graphene oxide

To investigate the adsorption behavior of contaminants with different adsorbents and co-adsorbates under identical conditions, the adsorption capacities of anionic orange II (OII) dye onto graphene oxide (GO) and photoreduced GO (PRGO) in a single-component system and in the presence of cationic met...

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Autores principales: Zhang, Xiaorong, Qin, Chengbing, Gong, Yani, Song, Yunrui, Zhang, Guofeng, Chen, Ruiyun, Gao, Yan, Xiao, Liantuan, Jia, Suotang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060707/
https://www.ncbi.nlm.nih.gov/pubmed/35515954
http://dx.doi.org/10.1039/c8ra09438a
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author Zhang, Xiaorong
Qin, Chengbing
Gong, Yani
Song, Yunrui
Zhang, Guofeng
Chen, Ruiyun
Gao, Yan
Xiao, Liantuan
Jia, Suotang
author_facet Zhang, Xiaorong
Qin, Chengbing
Gong, Yani
Song, Yunrui
Zhang, Guofeng
Chen, Ruiyun
Gao, Yan
Xiao, Liantuan
Jia, Suotang
author_sort Zhang, Xiaorong
collection PubMed
description To investigate the adsorption behavior of contaminants with different adsorbents and co-adsorbates under identical conditions, the adsorption capacities of anionic orange II (OII) dye onto graphene oxide (GO) and photoreduced GO (PRGO) in a single-component system and in the presence of cationic methylene blue (MB) dye as well as heavy metal ion Pb(2+) were explored. In this work, PRGO was prepared by solar light irradiation of a GO dispersion. GO and PRGO were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, Raman spectroscopy, atomic force microscopy, scanning electron microscopy, and transmission electron microscopy. The adsorption isotherms of OII, MB, and Pb(2+) onto GO and PRGO in single and binary systems have been studied and analyzed by the Langmuir model. In the single system, the adsorption capacity of OII on GO can be promoted from 8.4 mg g(−1) to 32.5 mg g(−1) after solar light irradiation. While the adsorption capacities of MB and Pb(2+) are not affected by the photoreduction process. In the binary system, a marked synergistic effect for the adsorption of OII has been determined in the presence of both MB and Pb(2+), where the adsorption capacity of OII on PRGO has been improved from 8.4 mg g(−1) to 295 mg g(−1) and 105 mg g(−1), enhancements of 35- and 12.5-fold, respectively. In contrast, the presence of OII leads to a mildly antagonistic effect on the adsorption of MB and Pb(2+). These findings show that the adsorption of anionic dyes by graphene-based materials can be strongly improved in the presence of either cationic dyes or heavy metal ions, which will be of great value in practical applications.
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spelling pubmed-90607072022-05-04 Co-adsorption of an anionic dye in the presence of a cationic dye and a heavy metal ion by graphene oxide and photoreduced graphene oxide Zhang, Xiaorong Qin, Chengbing Gong, Yani Song, Yunrui Zhang, Guofeng Chen, Ruiyun Gao, Yan Xiao, Liantuan Jia, Suotang RSC Adv Chemistry To investigate the adsorption behavior of contaminants with different adsorbents and co-adsorbates under identical conditions, the adsorption capacities of anionic orange II (OII) dye onto graphene oxide (GO) and photoreduced GO (PRGO) in a single-component system and in the presence of cationic methylene blue (MB) dye as well as heavy metal ion Pb(2+) were explored. In this work, PRGO was prepared by solar light irradiation of a GO dispersion. GO and PRGO were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, Raman spectroscopy, atomic force microscopy, scanning electron microscopy, and transmission electron microscopy. The adsorption isotherms of OII, MB, and Pb(2+) onto GO and PRGO in single and binary systems have been studied and analyzed by the Langmuir model. In the single system, the adsorption capacity of OII on GO can be promoted from 8.4 mg g(−1) to 32.5 mg g(−1) after solar light irradiation. While the adsorption capacities of MB and Pb(2+) are not affected by the photoreduction process. In the binary system, a marked synergistic effect for the adsorption of OII has been determined in the presence of both MB and Pb(2+), where the adsorption capacity of OII on PRGO has been improved from 8.4 mg g(−1) to 295 mg g(−1) and 105 mg g(−1), enhancements of 35- and 12.5-fold, respectively. In contrast, the presence of OII leads to a mildly antagonistic effect on the adsorption of MB and Pb(2+). These findings show that the adsorption of anionic dyes by graphene-based materials can be strongly improved in the presence of either cationic dyes or heavy metal ions, which will be of great value in practical applications. The Royal Society of Chemistry 2019-02-12 /pmc/articles/PMC9060707/ /pubmed/35515954 http://dx.doi.org/10.1039/c8ra09438a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zhang, Xiaorong
Qin, Chengbing
Gong, Yani
Song, Yunrui
Zhang, Guofeng
Chen, Ruiyun
Gao, Yan
Xiao, Liantuan
Jia, Suotang
Co-adsorption of an anionic dye in the presence of a cationic dye and a heavy metal ion by graphene oxide and photoreduced graphene oxide
title Co-adsorption of an anionic dye in the presence of a cationic dye and a heavy metal ion by graphene oxide and photoreduced graphene oxide
title_full Co-adsorption of an anionic dye in the presence of a cationic dye and a heavy metal ion by graphene oxide and photoreduced graphene oxide
title_fullStr Co-adsorption of an anionic dye in the presence of a cationic dye and a heavy metal ion by graphene oxide and photoreduced graphene oxide
title_full_unstemmed Co-adsorption of an anionic dye in the presence of a cationic dye and a heavy metal ion by graphene oxide and photoreduced graphene oxide
title_short Co-adsorption of an anionic dye in the presence of a cationic dye and a heavy metal ion by graphene oxide and photoreduced graphene oxide
title_sort co-adsorption of an anionic dye in the presence of a cationic dye and a heavy metal ion by graphene oxide and photoreduced graphene oxide
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9060707/
https://www.ncbi.nlm.nih.gov/pubmed/35515954
http://dx.doi.org/10.1039/c8ra09438a
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