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Adsorption behavior and mechanism of sulfonamides on phosphonic chelating cellulose under different pH effects
Yuebei Yang1; Liuchun Zheng1; Tao Zhang1; Huajian Yu1; Yiru Zhan1; Yufang Yang1; Hao Zeng1; Shukai Chen1; Dan Peng2
2019-05-14
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume288
Abstract

Phosphonic chelating fiber (PCCSF) as a novel adsorbent was produced through alkalization, etherification, amination and phosphonation, and then it was applied to adsorb sulfonamides (SAs), such as sulfadiazine (SD), sulfamonomethoxine (SMM) and sulfamethoxazole (SMZ). Specially, their adsorption behavior at different pH values was studied. As a result, PCCSF was provided with amino (-NH2 or -NH-) and -PO(OH)(2) (P-O) groups, and its equilibrium data were generally represented by both Langmuir and Freundlich models. Combining adsorbent-to-solution distribution coefficients (K-d) values and the effect of pH, the primary mechanism suggested that adsorption capacity of PCCSF was lower in strong acid and alkali solution, due to the electrostatic repulsion and hydrophobic interactions. By contrast, its adsorption affinity became more excellent at 3 < pH < 9 owing to the pi-pi electron-donor-acceptor (EDA) charge-assisted H-bond, Lewis acid-base interaction and charge-assisted H-bond (CAHB).

KeywordCellulose Chelating Sulfonamides Adsorption Mechanisms
DOI10.1016/j.biortech.2019.121510
Indexed BySCI
Language英语
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000472018100002
PublisherELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Corresponding AuthorLiuchun Zheng
Affiliation1.School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
2.Department of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, China
Recommended Citation
GB/T 7714
Yuebei Yang,Liuchun Zheng,Tao Zhang,et al. Adsorption behavior and mechanism of sulfonamides on phosphonic chelating cellulose under different pH effects[J]. BIORESOURCE TECHNOLOGY,2019,288.
APA Yuebei Yang.,Liuchun Zheng.,Tao Zhang.,Huajian Yu.,Yiru Zhan.,...&Dan Peng.(2019).Adsorption behavior and mechanism of sulfonamides on phosphonic chelating cellulose under different pH effects.BIORESOURCE TECHNOLOGY,288.
MLA Yuebei Yang,et al."Adsorption behavior and mechanism of sulfonamides on phosphonic chelating cellulose under different pH effects".BIORESOURCE TECHNOLOGY 288(2019).
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