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Ultrahigh adsorbability towards different antibiotic residues on fore-modified self-functionalized biochar: Competitive adsorption and mechanism studies.
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-01-20 , DOI: 10.1016/j.jhazmat.2020.122127 Huiqin Li 1 , Jingtao Hu 2 , Lifen Yao 3 , Qian Shen 3 , Lihui An 3 , Xiaojing Wang 4
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-01-20 , DOI: 10.1016/j.jhazmat.2020.122127 Huiqin Li 1 , Jingtao Hu 2 , Lifen Yao 3 , Qian Shen 3 , Lihui An 3 , Xiaojing Wang 4
Affiliation
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An ultrasonic-assistant fore-modified method was designed to develop the self-functionalized biochar (SFB) with enhanced adsorbability. Characterized by different morphologies, SFB was presenting particular groups of carbon micro-spheres. Possessing ultrahigh surface area of 2368 m2/g, SFB exhibited excellent adsorption capacity (up to 497 mg/g) towards traditional antibiotic. Besides, more functional groups, which played important roles on the solid-liquid interface interaction, posed on the surface of SFB. The removal efficiency of levofloxacin was up to 99.93 % in the competitive system. Adsorption mechanism was analyzed based on the results of FTIR, kinetics, isotherms and competitive adsorption experiments. The chemisorption affinity on the solid-liquid interface was strong enough, which was proved by isotherms, thermodynamics and Kd analyses. Meanwhile, SFB has presented a good resistance against humid acid interference in aqueous environment. Thus, the ultrasonic-assistant fore-modified method was potential in dramatically improving the feature of biochars. SFB presented excellent adsorbability to antibiotics and exhibits extraordinary potential in wastewater treatment.
中文翻译：
在前修饰的自官能化生物炭上对不同抗生素残基的超高吸附性：竞争性吸附和机理研究。
设计了一种超声波辅助前处理方法，以开发具有增强的吸附性的自官能化生物炭（SFB）。SFB以不同的形态为特征，呈现出特定的碳微球群。SFB具有2368 m2 / g的超高表面积，对传统抗生素具有极好的吸附能力（高达497 mg / g）。此外，SFB表面还存在更多的在固液界面相互作用中起重要作用的官能团。在竞争系统中左氧氟沙星的去除效率高达99.93％。根据FTIR，动力学，等温线和竞争性吸附实验结果分析了吸附机理。固-液界面上的化学吸附亲和力足够强，这由等温线，热力学和Kd分析证明。同时，SFB在水性环境中表现出良好的抗湿酸干扰能力。因此，超声辅助前处理方法在显着改善生物炭特征方面具有潜力。SFB具有优异的对抗生素的吸附能力，在废水处理中具有非凡的潜力。
更新日期：2020-01-21
中文翻译：
在前修饰的自官能化生物炭上对不同抗生素残基的超高吸附性：竞争性吸附和机理研究。
设计了一种超声波辅助前处理方法，以开发具有增强的吸附性的自官能化生物炭（SFB）。SFB以不同的形态为特征，呈现出特定的碳微球群。SFB具有2368 m2 / g的超高表面积，对传统抗生素具有极好的吸附能力（高达497 mg / g）。此外，SFB表面还存在更多的在固液界面相互作用中起重要作用的官能团。在竞争系统中左氧氟沙星的去除效率高达99.93％。根据FTIR，动力学，等温线和竞争性吸附实验结果分析了吸附机理。固-液界面上的化学吸附亲和力足够强，这由等温线，热力学和Kd分析证明。同时，SFB在水性环境中表现出良好的抗湿酸干扰能力。因此，超声辅助前处理方法在显着改善生物炭特征方面具有潜力。SFB具有优异的对抗生素的吸附能力，在废水处理中具有非凡的潜力。
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