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240905s2024 xx |||||o 00| ||eng c |
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|a 10.1002/wer.11117
|2 doi
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|a pubmed24n1524.xml
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|a (DE-627)NLM377220000
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|a (NLM)39234890
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|a DE-627
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|a eng
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|a Gong, Xiaoming
|e verfasserin
|4 aut
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|a Differential effects of polystyrene microplastics on the adsorption of cadmium and ciprofloxacin by tea leaf litter-derived magnetic biochar
|b Influencing factors and mechanisms
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 05.09.2024
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|a Date Revised 05.09.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © 2024 Water Environment Federation.
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|a Water pollution involves the coexistence of microplastics (MPs) and traditional pollutants, and how can MPs influence the adsorption of other pollutants by biochar during the treatment process remains unclear. This study aimed to investigate the influence of polystyrene microplastics (PS MPs) on the adsorption of cadmium (Cd) and ciprofloxacin (CIP) by magnetic biochar (MTBC) in the single and binary systems. MTBC was prepared using tea leaf litter; the effects of time, pH, and salt ions on the adsorption behaviors were investigated; and X-ray photoelectronic spectroscopy (XPS) and density flooding theory analysis were conducted to elucidate the influence mechanisms. Results indicated that PS MPs reduced the pollutants adsorption by MTBC due to the heterogeneous aggregation between PS MPs and MTBC and the surface charge change of MTBC induced by PS MPs. The effects of PS MPs on heavy metals and antibiotics adsorption were distinctly different. PS MPs reduced Cd adsorption on MTBC, which were significantly influenced by the solution pH and salt ions contents, suggesting the participation of electrostatic interaction and ion exchange in the adsorption, whereas the effects of PS MPs on CIP adsorption were inconspicuous. In the hybrid system, PS MPs reduced pollutants adsorption by MTBC with 66.3% decrease for Cd and 12.8% decrease for CIP, and the more remarkable reduction for Cd was due to the predominated physical adsorption, and CIP adsorption was mainly a stable chemisorption. The influence of PS MPs could be resulted from the interaction between PS MPs and MTBC with changing the functional groups and electrostatic potential of MTBC. This study demonstrated that when using biochar to decontaminate wastewater, it is imperative to consider the antagonistic action of MPs, especially for heavy metal removal. PRACTITIONER POINTS: Magnetic biochar (MTBC) was prepared successfully using tea leaf litter. MTBC could be used for cadmium (Cd) and ciprofloxacin (CIP) removal. Polystyrene microplastics (Ps MPs) reduced Cd/CIP adsorption by MTBC. Ps MPs effects on Cd adsorption were more obvious than that of CIP. Ps MPs changed the functional groups and electrostatic potential of MTBC, thus influencing MTBC adsorption
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|a Journal Article
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|a adsorption
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|a biochar
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|a cadmium
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|a ciprofloxacin
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|a microplastics
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|a Cadmium
|2 NLM
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|a 00BH33GNGH
|2 NLM
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|a Polystyrenes
|2 NLM
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|a Charcoal
|2 NLM
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|a 16291-96-6
|2 NLM
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|a Ciprofloxacin
|2 NLM
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|a 5E8K9I0O4U
|2 NLM
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|a biochar
|2 NLM
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| 650 |
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|a Microplastics
|2 NLM
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|a Water Pollutants, Chemical
|2 NLM
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|a Tea
|2 NLM
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|a Chen, Ranran
|e verfasserin
|4 aut
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|a Shi, Guanwei
|e verfasserin
|4 aut
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|a Sun, Haibo
|e verfasserin
|4 aut
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|a Yang, Yang
|e verfasserin
|4 aut
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|a Liang, Yunshan
|e verfasserin
|4 aut
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|a Qin, Pufeng
|e verfasserin
|4 aut
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|a Yang, Huilin
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Zhibin
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 96(2024), 9 vom: 05. Sept., Seite e11117
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:96
|g year:2024
|g number:9
|g day:05
|g month:09
|g pages:e11117
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|u http://dx.doi.org/10.1002/wer.11117
|3 Volltext
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