Adsorption of phthalic acid esters (PAEs) on chemically aged biochars
Biochar offers not only agro-economic advantages, but it is also a low-cost alternative sorbent to remove water pollutants. With the passage of time and environmental exposure, biochar undergoes different biogeochemical transformations causing changes in their surface properties and composition. How...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2016-08-01
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| Series: | Green Processing and Synthesis |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/gps-2016-0014 |
| _version_ | 1831649692735242240 |
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| author | Ghaffar Abdul Abbas Ghulam |
| author_facet | Ghaffar Abdul Abbas Ghulam |
| author_sort | Ghaffar Abdul |
| collection | DOAJ |
| description | Biochar offers not only agro-economic advantages, but it is also a low-cost alternative sorbent to remove water pollutants. With the passage of time and environmental exposure, biochar undergoes different biogeochemical transformations causing changes in their surface properties and composition. However, the changes in the adsorption behavior of aged biochars, under environmental conditions and efficacy of phthalic acid esters (PAEs) are still not clear. The biochar samples were prepared at two temperatures (300°C and 500°C) from peanut-shell biomass and their aging was simulated by chemical oxidation (with H2SO4/HNO3 mixture). The characteristics of the peanut-shell derived primary biochars and oxidized biochars were examined by CHN elemental analyzer, X-ray photoelectron spectroscopy (XPS), diffuse reflectance infrared Fourier-transformed (DRIFT) spectroscopy and the Brunauer-Emmet-Teller method. The oxidation introduced various functional groups to biochar surfaces, but inhibited adsorption due to the formation of three dimensional water clusters. The adsorption of PAEs on biochar was a cumulative influence of hydrophobic interactions and surface chemistry. Biochars obtained at 300°C and 500°C were distinct in their molecular structure and thus anticipated to pose different sorbent characteristics. The results suggested that exposure to different environments could cause imminent aging and influence the biochars regarding sorption properties. |
| first_indexed | 2024-12-19T14:55:22Z |
| format | Article |
| id | doaj.art-08af1643267a486ba4e940adeb17f898 |
| institution | Directory Open Access Journal |
| issn | 2191-9542 2191-9550 |
| language | English |
| last_indexed | 2024-12-19T14:55:22Z |
| publishDate | 2016-08-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Green Processing and Synthesis |
| spelling | doaj.art-08af1643267a486ba4e940adeb17f8982022-12-21T20:16:43ZengDe GruyterGreen Processing and Synthesis2191-95422191-95502016-08-015440741710.1515/gps-2016-0014Adsorption of phthalic acid esters (PAEs) on chemically aged biocharsGhaffar Abdul0Abbas Ghulam1Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, ChinaDepartment of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, ChinaBiochar offers not only agro-economic advantages, but it is also a low-cost alternative sorbent to remove water pollutants. With the passage of time and environmental exposure, biochar undergoes different biogeochemical transformations causing changes in their surface properties and composition. However, the changes in the adsorption behavior of aged biochars, under environmental conditions and efficacy of phthalic acid esters (PAEs) are still not clear. The biochar samples were prepared at two temperatures (300°C and 500°C) from peanut-shell biomass and their aging was simulated by chemical oxidation (with H2SO4/HNO3 mixture). The characteristics of the peanut-shell derived primary biochars and oxidized biochars were examined by CHN elemental analyzer, X-ray photoelectron spectroscopy (XPS), diffuse reflectance infrared Fourier-transformed (DRIFT) spectroscopy and the Brunauer-Emmet-Teller method. The oxidation introduced various functional groups to biochar surfaces, but inhibited adsorption due to the formation of three dimensional water clusters. The adsorption of PAEs on biochar was a cumulative influence of hydrophobic interactions and surface chemistry. Biochars obtained at 300°C and 500°C were distinct in their molecular structure and thus anticipated to pose different sorbent characteristics. The results suggested that exposure to different environments could cause imminent aging and influence the biochars regarding sorption properties.https://doi.org/10.1515/gps-2016-0014adsorptionaging processchemical oxidationoxidized biocharphthalic acid esters (paes) |
| spellingShingle | Ghaffar Abdul Abbas Ghulam Adsorption of phthalic acid esters (PAEs) on chemically aged biochars Green Processing and Synthesis adsorption aging process chemical oxidation oxidized biochar phthalic acid esters (paes) |
| title | Adsorption of phthalic acid esters (PAEs) on chemically aged biochars |
| title_full | Adsorption of phthalic acid esters (PAEs) on chemically aged biochars |
| title_fullStr | Adsorption of phthalic acid esters (PAEs) on chemically aged biochars |
| title_full_unstemmed | Adsorption of phthalic acid esters (PAEs) on chemically aged biochars |
| title_short | Adsorption of phthalic acid esters (PAEs) on chemically aged biochars |
| title_sort | adsorption of phthalic acid esters paes on chemically aged biochars |
| topic | adsorption aging process chemical oxidation oxidized biochar phthalic acid esters (paes) |
| url | https://doi.org/10.1515/gps-2016-0014 |
| work_keys_str_mv | AT ghaffarabdul adsorptionofphthalicacidesterspaesonchemicallyagedbiochars AT abbasghulam adsorptionofphthalicacidesterspaesonchemicallyagedbiochars |