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Alkali lignin was used as raw material to prepare alkali lignin-based activated carbon (LAC). And then, lignin-based activated carbon-supported with nickel-zinc oxides (NiZn-DO/LAC) was fabricated by hydrothermal synthesis after adding nickel nitrate and zinc nitrate onto LAC. The structure of NiZn-DO/LAC was characterized by BET, SEM and XRD, and the adsorption behavior of sulfathiazole (ST) in aqueous solution was also studied. The results showed that the NiZn-DO/LAC had evident obvious three-dimensional porous structure and stable crystal structure with a large specific surface area of 759.1m2/g. In the process of ST adsorption, the NiZn-Do/Lac showed excellent adsorption performance, with the maximum adsorption capacity up to 328.2mg/g, which was better than other reported adsorbents. Additionally, the ST was easily desorbed from NiZn-DO/LAC with NaOH solution and the analytical rate of NiZn-DO/LAC was still reach up to 79.43% after 4times of recycles. Furthermore, it showed that the adsorption behavior of ST over NiZn-DO/LAC was mainly through the synergistic effect of electrostatic interaction, π-π interaction, complexation, hydrophobic effects and hydrophobicity, resulting in a great improvement of adsorption performance. © 2021, Editorial Board of China Environmental Science. All right reserved.
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China Environmental Science
ISSN: 1000-6923
CN: 11-2201/X
Year: 2021
Issue: 8
Volume: 41
Page: 3642-3652
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 5
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