Designing Phenyl Porous Organic Polymers with High-Efficiency Tetracycline Adsorption Capacity and Wide pH...

Area of Science:

• Materials Science
• Environmental Chemistry
• Polymer Chemistry

Background:

• Adsorption is a key method for removing tetracycline (TC) from water.
• Developing efficient and eco-friendly adsorbents is crucial for water purification.
• Antibiotic contamination in water poses significant environmental and health risks.

Purpose of the Study:

• To synthesize and evaluate novel phenyl porous organic polymers (P-POPs) as adsorbents for TC removal.
• To investigate the adsorption performance, kinetics, and mechanism of P-POPs for TC.
• To assess the stability and reusability of P-POPs in water treatment.

Main Methods:

• One-pot polymerization of biphenyl and triphenylbenzene using AlCl3 catalysis.
• Characterization of synthesized P-POPs for surface area, pore structure, and functional groups.
• Batch adsorption experiments to determine TC removal efficiency, adsorption capacity, and kinetics.
• Evaluation of adsorption performance across a wide pH range and assessment of adsorbent reusability.

Main Results:

• Synthesized P-POPs exhibit high specific surface area (1098 m²/g) and pore volume (0.579 cm³/g).
• Maximum adsorption capacity reached 581 mg/g, with 98% TC removal efficiency within 1 hour.
• Adsorption followed pseudo-second-order kinetics and the Sips model, demonstrating wide pH adaptability (2-10) and excellent reusability (≥5 cycles).

Conclusions:

• Phenyl porous organic polymers are highly efficient adsorbents for tetracycline removal from water.
• The developed P-POPs offer a robust and reusable solution for antibiotic wastewater treatment.
• These findings provide a theoretical basis for applying porous organic polymers in environmental remediation.