Adsorption of Bisphenol A on Peanut Shell Biochars: The Effects of Surfactants
Bisphenol A (BPA) is a typical endocrine-disrupting chemical. The removal of BPA has raised much concerns in recent years. This paper examined the adsorption behavior of BPA to biochars and the different effects of cationic, anionic, and nonionic surfactants. The results indicated that peanut shell...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2019/2428505 |
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| author | Fang Wang Qiang Zeng Wenting Su Min Zhang Lei Hou Zhong-Liang Wang |
| author_facet | Fang Wang Qiang Zeng Wenting Su Min Zhang Lei Hou Zhong-Liang Wang |
| author_sort | Fang Wang |
| collection | DOAJ |
| description | Bisphenol A (BPA) is a typical endocrine-disrupting chemical. The removal of BPA has raised much concerns in recent years. This paper examined the adsorption behavior of BPA to biochars and the different effects of cationic, anionic, and nonionic surfactants. The results indicated that peanut shell biochars prepared at 300°C (BC300), 500°C (BC500), and 700°C (BC700) showed strong adsorption affinity for BPA, and the adsorption affinity of biochars increased with the increase of pyrolysis temperature. The range of log Kd values was 2.83∼3.71, 2.91∼4.57, and 3.24∼5.50 for BC300, BC500, and BC700, respectively. Both the type of surfactants and the properties of biochars could affect the adsorption behavior of BPA. Cetyltrimethyl ammonium bromide (CTAB) showed negligible effect on the adsorption of BPA on BC300, and the inhibition effect of CTAB was stronger with the increase of biochar pyrolysis temperature. Tween 20 and sodium dodecyl benzene sulfonate (SDBS) showed stronger inhibition effect than CTAB, especially on BC300. This is likely because the inhibition effect caused by competition of CTAB may be counterbalanced by the enhancement caused by the partitioning effect by adsorbed CTAB and the bridge effect between the –NH4+ group of CTAB and the phenol group on BPA/O-functional groups of biochars, whereas Tween 20 and SDBS do not have this bridge effect advantage. This study could provide insightful information for the application of biochars in removal of BPA. |
| format | Article |
| id | doaj-art-dcddcad83cac4cc9bd7e4e3789b9a649 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
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| series | Journal of Chemistry |
| spelling | doaj-art-dcddcad83cac4cc9bd7e4e3789b9a6492025-02-03T06:14:10ZengWileyJournal of Chemistry2090-90632090-90712019-01-01201910.1155/2019/24285052428505Adsorption of Bisphenol A on Peanut Shell Biochars: The Effects of SurfactantsFang Wang0Qiang Zeng1Wenting Su2Min Zhang3Lei Hou4Zhong-Liang Wang5Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, ChinaTianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, ChinaTianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, ChinaTianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, ChinaCollege of Ecology and Environment, Southwest Forestry University, Kunming 650224, ChinaTianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, ChinaBisphenol A (BPA) is a typical endocrine-disrupting chemical. The removal of BPA has raised much concerns in recent years. This paper examined the adsorption behavior of BPA to biochars and the different effects of cationic, anionic, and nonionic surfactants. The results indicated that peanut shell biochars prepared at 300°C (BC300), 500°C (BC500), and 700°C (BC700) showed strong adsorption affinity for BPA, and the adsorption affinity of biochars increased with the increase of pyrolysis temperature. The range of log Kd values was 2.83∼3.71, 2.91∼4.57, and 3.24∼5.50 for BC300, BC500, and BC700, respectively. Both the type of surfactants and the properties of biochars could affect the adsorption behavior of BPA. Cetyltrimethyl ammonium bromide (CTAB) showed negligible effect on the adsorption of BPA on BC300, and the inhibition effect of CTAB was stronger with the increase of biochar pyrolysis temperature. Tween 20 and sodium dodecyl benzene sulfonate (SDBS) showed stronger inhibition effect than CTAB, especially on BC300. This is likely because the inhibition effect caused by competition of CTAB may be counterbalanced by the enhancement caused by the partitioning effect by adsorbed CTAB and the bridge effect between the –NH4+ group of CTAB and the phenol group on BPA/O-functional groups of biochars, whereas Tween 20 and SDBS do not have this bridge effect advantage. This study could provide insightful information for the application of biochars in removal of BPA.http://dx.doi.org/10.1155/2019/2428505 |
| spellingShingle | Fang Wang Qiang Zeng Wenting Su Min Zhang Lei Hou Zhong-Liang Wang Adsorption of Bisphenol A on Peanut Shell Biochars: The Effects of Surfactants Journal of Chemistry |
| title | Adsorption of Bisphenol A on Peanut Shell Biochars: The Effects of Surfactants |
| title_full | Adsorption of Bisphenol A on Peanut Shell Biochars: The Effects of Surfactants |
| title_fullStr | Adsorption of Bisphenol A on Peanut Shell Biochars: The Effects of Surfactants |
| title_full_unstemmed | Adsorption of Bisphenol A on Peanut Shell Biochars: The Effects of Surfactants |
| title_short | Adsorption of Bisphenol A on Peanut Shell Biochars: The Effects of Surfactants |
| title_sort | adsorption of bisphenol a on peanut shell biochars the effects of surfactants |
| url | http://dx.doi.org/10.1155/2019/2428505 |
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