Efficient and simultaneous removal of four antibiotics with silicone polymer adsorbent from aqueous solution

• DOI: 10.1016/j.emcon.2023.100258
• Publication Date: 2023-08-25T16:09:41Z
• Authors: Rabeea Zafar; Deedar Nabi; Arwa Abdulkreem A...; Usama Jamil; Sher Jamal Khan; Zaheer Ahmed; Muhammad Arshad
• Keywords: Langmuir adsorption model

The extensive utilization of pharmaceuticals in developing nations, notably antibiotics, has resulted the occurrence these substances water and wastewater, widely accepted as emerging pollutants. focus this study was to devise a strategy that can efficiently concurrently eliminate multiple antibiotics from an aqueous medium. A silicone-based polymer–polydimethylsiloxane (PDMS) adsorbent prepared remove solution. Characterization PDMS carried out using different techniques, adsorption capacity determined batch experiments. Kinetics Isotherms fittings were employed better understand mechanism for removal antibiotics. without addition any chemicals. experiments performed mode two weeks operating parameters include pH 7 temperature 25 °C. analysis on HPLC-DAD at 280 nm. showed maximum efficiency 99.71% ofloxacin followed by oxytetracycline, ciprofloxacin, sulfamethoxazole i.e., 99.58%, 96.01%, 93.90%, respectively. had similar trend with value (8.79 mg/g), oxytetracycline (8.76 ciprofloxacin (8.41 (8.27 mg/g). fitting data into isotherm models confirmed Langmuir model governing having R2 = 0.9663 0.9681, Whereas, Freundlich best fitted (R2 0.9970 0.9328, respectively). Adsorption studies all four pseudo-second-order kinetics values 0.9549, 0.9893, 0.9692, 0.9994 ofloxacin, sulfamethoxazole, encouraging results regeneration further potential promising showing ≥74% efficiencies fourth cycle. In general, it be concluded great serve effective efficient chemicals thus not adding environmental contamination.