Preparation of Chemically Modified Residue-based Bio-adsorbents in Astragalus and Study on Its Adsorption Performance

Xiaochun Yin, Hongtao Li, Nadi Zhang, Hai Zhu, Ting Ke, Yi Zhao, Xingmin Wei, Jianjun Wu, Yongfeng Wang

2022

Abstract

[Objective] Astragalus residues were prepared with NaOH, Na2CO3 and citric acid modification, and their adsorption capacity for Cu2+ was studied for the removal of metal ions from simulated wastewater. [Method] Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), thermogravimetry (TG) and X-ray diffraction (XRD) were adopted to characterize the morphology and surface structure of bio-adsorbents; through static adsorption experiments, the effects of adsorbent dosage, pH, adsorption time and initial concentration of Cu2+ solution on the adsorption performance of the adsorbent were investigated; the desorption performance of the adsorbent was studied by dynamic experiments, the adsorption principle of the adsorbent was clarified, and a certain theoretical basis was provided for the reuse of Astragalus residues. [Result] The modification of NaOH, Na2CO3 and citric acid can improve the adsorption capacity of Astragalus residues to Cu2+ in water body, thereby reducing its pollution to the environment and realizing the resource utilization of Astragalus residues. [Conclusion] Astragalus can be used as a raw material for the preparation of adsorbents for removing heavy metal pollutants in water, and the modified adsorbent has excellent performance.

Paper Citation

in Harvard Style

Yin X., Li H., Zhang N., Zhu H., Ke T., Zhao Y., Wei X., Wu J. and Wang Y. (2022). Preparation of Chemically Modified Residue-based Bio-adsorbents in Astragalus and Study on Its Adsorption Performance. In Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB, ISBN 978-989-758-595-1, pages 1022-1030. DOI: 10.5220/0011375700003443

in Bibtex Style

@conference{icbeb22,
author={Xiaochun Yin and Hongtao Li and Nadi Zhang and Hai Zhu and Ting Ke and Yi Zhao and Xingmin Wei and Jianjun Wu and Yongfeng Wang},
title={Preparation of Chemically Modified Residue-based Bio-adsorbents in Astragalus and Study on Its Adsorption Performance},
booktitle={Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,},
year={2022},
pages={1022-1030},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011375700003443},
isbn={978-989-758-595-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,
TI - Preparation of Chemically Modified Residue-based Bio-adsorbents in Astragalus and Study on Its Adsorption Performance
SN - 978-989-758-595-1
AU - Yin X.
AU - Li H.
AU - Zhang N.
AU - Zhu H.
AU - Ke T.
AU - Zhao Y.
AU - Wei X.
AU - Wu J.
AU - Wang Y.
PY - 2022
SP - 1022
EP - 1030
DO - 10.5220/0011375700003443