A novel porous aromatic framework with mesopores for removal of antibiotics from water

Porous aromatic frameworks (PAFs) display high potential for wastewater treatment, due to their high surface area and extreme stability. PAF-134 was synthesized based on a 3-connected non-planar building unit, tris(4-bromophenyl)(phenyl)silane (PBTSi-3-Br), via Yamamoto coupling reaction. PAF-134 exhibited high BET sur-face area of 865.7 m2/g, large mesopore ratio of 69 % pore volume and excellent stability. Three tetracycline pollutants, tetracycline (TC), oxytetracycline (OTC) and chlortetracycline hydrochloride (CTC), were chosen to study the antibiotics adsorption performance for PAF-134. The adsorption isotherms, kinetics, and thermodynamics were measured and analyzed. Moreover, PAF-134 in removing antibiotics from actual water exhibited high efficiency and possessed outstanding recyclability and stability, thus showing that it is a promising adsorbent for wastewater treatment.

Automated summary

Porous aromatic frameworks (PAFs) show high potential for wastewater treatment due to their high surface area and stability. PAF-134, synthesized via Yamamoto coupling reaction, exhibits high adsorption performance for tetracycline antibiotics and demonstrates excellent efficiency and stability in removing antibiotics from actual water.