生物炭
吸附
去壳
化学
四环素
抗生素
环境化学
核化学
有机化学
热解
生物化学
生物
植物
作者
Thi-Kim-Tuyen Nguyen,Thanh-Binh Nguyen,Wei‐Hsin Chen,Chiu‐Wen Chen,Anil Kumar Patel,Xuan‐Thanh Bui,Linjer Chen,Reeta Rani Singhania,Cheng‐Di Dong
标识
DOI:10.1016/j.biortech.2023.128593
摘要
In recent years, the unnecessary overuse of antibiotics has increased globally, resulting in antibiotic contamination of water, which has become a significant environmental concern. This study aims to examine the adsorption behavior of antibiotics (Tetracycline TC, Ciprofloxacin CIP, Ibuprofen IBP, and Sulfamethoxazole SMX) onto H3PO4-activated sunflower seed husk biochar (PSF). The results demonstrated that H3PO4 could enhance the specific surface area (378.8 m2/g) and create a mesoporous structure of biochar. The adsorption mechanism was investigated using kinetic models, isotherms, and thermodynamics. The maximum adsorption capacities (qmax) of TC, CIP, SMX, and IBP are 429.3, 361.6, 251.3, and 251.1 mg g-1, respectively. The adsorption mechanism of antibiotics on PSF was governed by complex mechanisms, including chemisorption, external diffusion, and intraparticle diffusion. This research provides an environmentally friendly method for utilizing one of the agricultural wastes for the removal of a variety of antibiotics from the aquatic environment.
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