吸附
化学
四环素
锌
碳水化合物
弗伦德利希方程
碳纤维
淀粉
燃烧
无机化学
废水
核化学
化学工程
有机化学
材料科学
废物管理
复合数
生物化学
复合材料
抗生素
工程类
作者
Wei Wang,Ming Gao,Mengbo Cao,Xun Liu,Haichuan Yang,Yongsheng Li
标识
DOI:10.1016/j.biortech.2021.125059
摘要
Herein, a series of novel adsorbents derived from glucose, maltose, and starch zinc oxide (ZnO) loaded carbohydrate-based carbon materials (Zn-Cs) were synthesized by a fast and efficient self-propagating combustion synthesis method (SCS). The experimental results show that Zn-Cs exhibits excellent adsorption performance (>375 mg/g) to tetracycline, and the pseudo-second-order model and Freundlich model can better describe the adsorption data. The adsorption capacities of Zn-Cs were over 300 mg/g throughout the wide pH range (6–9), while various coexisting ions in the concentration range of 0–10 mg/L and the presence of humic acid had nearly no impact on the adsorption of tetracycline. Moreover, the adsorption experiment of simulated hospital wastewater shows that the adsorption capacity of Zn-Cs for tetracycline exceeds 185 mg/g. The adsorption mechanism of tetracycline are H-bond, complexation, and conjugation effect. This work provides an efficient, excellent versatility and time-saving strategy for preparing high-performance carbohydrate-based carbon materials for adsorbents.
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