Preparation of Biochar Carbonized With Sulfuric Acid and Study on Its Adsorption Properties to Antibiotics DOI
Yan Xiao,

Yanyan Du,

Xu Huang

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(17)

Published: April 26, 2025

Abstract In this study, an innovative low‐temperature sulfuric acid carbonization method was developed to convert agricultural waste jacaranda husk into high‐performance biochar (JSS), which overcomes the problems of surface ash coverage and functional group loss caused by traditional high‐temperature pyrolysis (>500 °C). By introducing a sulfonic (‐SO₃H) retaining abundant oxygen‐containing groups (‐OH, ‐COOH), adsorption capacity JSS for tetracycline (TC) ciprofloxacin (CIP) reached 161.76 63.96 mg g −1 , respectively, about three times higher than that conventional (JST). Experiments show exhibits best performance in pH range 6–7, efficient removal is achieved through synergistic action electrostatic attraction, π–π interaction, hydrogen bonding. addition, efficiency remained above 80% after five regeneration cycles, demonstrating excellent stability reusability.

Language: Английский

Preparation of Biochar Carbonized With Sulfuric Acid and Study on Its Adsorption Properties to Antibiotics DOI
Yan Xiao,

Yanyan Du,

Xu Huang

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(17)

Published: April 26, 2025

Abstract In this study, an innovative low‐temperature sulfuric acid carbonization method was developed to convert agricultural waste jacaranda husk into high‐performance biochar (JSS), which overcomes the problems of surface ash coverage and functional group loss caused by traditional high‐temperature pyrolysis (>500 °C). By introducing a sulfonic (‐SO₃H) retaining abundant oxygen‐containing groups (‐OH, ‐COOH), adsorption capacity JSS for tetracycline (TC) ciprofloxacin (CIP) reached 161.76 63.96 mg g −1 , respectively, about three times higher than that conventional (JST). Experiments show exhibits best performance in pH range 6–7, efficient removal is achieved through synergistic action electrostatic attraction, π–π interaction, hydrogen bonding. addition, efficiency remained above 80% after five regeneration cycles, demonstrating excellent stability reusability.

Language: Английский

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