Investigation of Porphyrin-Based Porous Organic Polymers for EnhancedCiprofloxacin Adsorption from Water

In recent times, the contamination of groundwater has emerged as a significant environmentalconcern, primarily due to the presence of diverse pollutants resulting from improper personalusage. Antibiotics, being a class of organic substances, possess inherent resistance tobiodegradation. Unfortunately, their widespread and irregular usage has led to the pollution ofgroundwater, contributing to concerns such as bacterial resistance and elevated toxicity levelswithin underground reservoirs [۱]. Among the various antibiotics, Ciprofloxacin, a commonlyprescribed Fluoroquinolone antibiotic, stands out as one of the most extensively used.Unfortunately, this antibiotic exhibits a prolonged presence in municipal wastewater and even lowconcentrations of it can have toxic effects. In response to this concern, numerous methods havebeen developed to remove antibiotics from groundwater or wastewater [۲]. One such approachinvolves the adsorption of antibiotics using porous materials. Porous Organic Polymers (POPs)have garnered significant interest due to their distinctive properties. These materials featureinterconnected porous structures held together by covalent bonds, offering advantages such as alarge specific surface area, exceptional chemical stability, and low skeleton density [۳]. This studyfocuses on the application of a Porphyrin-based Porous Organic Polymer (POP) for the removalof Ciprofloxacin from wastewater. The synthesized porous organic polymer incorporatesPorphyrin groups and exhibits a notable specific surface area of ۵۹۴ m۲g-۱. Iron is coordinated tothe POP to produce poly iron porphyrins. Experimental findings demonstrate that the optimaladsorption of Ciprofloxacin (>۴۰%) takes place under acidic conditions, specifically at a pH of ۳.Overall, this research highlights the potential of utilizing a high-specific surface-area porousorganic polymer as a green and cost-effective adsorbent for the removal of antibiotics from water.The polymer demonstrates promising performance, particularly in acidic solutions.

Keywords:

Porous Organic Polymers , Adsorption , Ciprofloxacin