Insight into the significant contribution of intrinsic defects of carbon-based materials for the efficient removal of tetracycline antibiotics

Due to their high adsorption capacity and low cost, carbon-based materials have experienced great progress in the removal of tetracyclines. Unfortunately, nature site is far from clarified. Especially, it still a challenge systematically explore impact intrinsic defects adsorbents on Herein, with different were designed prepared, properties tetracyclines studied. From microscopic characterization batch experiments, facilitated performance The best adsorbent (SSG-C) had very (526.9 mg/g for tetracycline (TTC); 360.9 oxytetracycline (OTC)). Additionally, density functional theory simulation results show that ring sp2 species promoted more than sp3 edge defects, increased increasing defect species. Based above analysis, we proposed carbon activate π electrons facilitate π-π interaction between tetracyclines, particularly This study provides decisive contribution better understanding role