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Adsorption of chloramphenicol from water using Carex meyeriana Kunth-derived hierarchical porous carbon with open channel arrays

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Abstract

A carbon material with both open macrochannel arrays and abundant micro/mesopores was prepared, characterized, and applied for removing chloramphenicol (CAP) from water. In the preparation process, Carex meyeriana Kunth (CM) with natural channel arrays was used as the precursor for producing the biochar, and NaOH was used for removing silicon and formatting micro- and mesopores of the porous carbon. The product (PCCM) exhibited the highest specific surface area (2700.24 m2 g−1) among the reported CM-derived porous carbons. The adsorption performances of PCCM were evaluated through batch adsorption experiments. The maximum adsorption capacity of PCCM toward CAP was 1659.43 mg g−1. The adsorption mechanism was investigated with the aid of theoretical calculations. Moreover, PCCM exhibited better performance than other porous carbon adsorbents in fixed-bed experiments, which may be due to its structural advantages.

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Funding

This work was supported by a program grant (Project No. JJKH20220327KJ) from the Scientific Research Projects of the Education Department of Jilin Province.

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Jiaxu Qi: conceptualization, methodology, formal analysis, writing (original draft), and investigation; Xingyu Liu: formal analysis and investigation; Yupeng Zheng: formal analysis and investigation; Guanya Zhu: investigation; Shanshan Tang: conceptualization, methodology, resources, data curation, and project administration; Xiaoxiao Yu: funding acquisition; Yingjie Su: resources; Siji Chen: methodology and visualization; Dadong Liang: formal analysis; Guang Chen: conceptualization, methodology, and supervision.

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Correspondence to Shanshan Tang.

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The authors declare no competing interests.

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Qi, J., Liu, X., Zhang, Y. et al. Adsorption of chloramphenicol from water using Carex meyeriana Kunth-derived hierarchical porous carbon with open channel arrays. Environ Sci Pollut Res 30, 31060–31076 (2023). https://doi.org/10.1007/s11356-022-24223-x

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  • DOI: https://doi.org/10.1007/s11356-022-24223-x

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