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Adsorptive Removal of Amoxicillin Using Green-Synthesized SiNH2@FeNP Nanocomposite: Characterization, Optimization, and Modeling

Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide The increasing presence of pharmaceutical contaminants, particularly amoxicillin (AMX), in aquatic environments necessitates the development of efficient and sustainable removal strategies. In this study, the SiNH 2 @FeNP nanocomposite was synthesized via a green synthesis approach using licorice ( Glycyrrhiza glabra ) root extract as a reducing and stabilizing agent. The synthesized nanocomposite was comprehensively characterized using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy (SEM), and Brunauer–Emmett–Teller surface area analysis to confirm its structural and morphological features. SEM imaging revealed significant morphological changes, demonstrating a uniform FeNP distribution on the SiNH 2 surface. The adsorptive performance of the nanocomposite was optimized using the Box-Behnken experimental design, considering key operational parameters such as pH, initial AMX concentration, and adsorbent dosage. The statistical analysis validated a quadratic model as the best fit, achieving a maximum removal efficiency of 95% under optimized conditions (pH 5.6, AMX concentration 40.79 mg/L, and adsorbent dosage 1.85 g/L). These results demonstrate the high potential of SiNH 2 @FeNP as a low-cost, eco-friendly adsorbent for pharmaceutical removal from water, providing a scalable and sustainable alternative for wastewater treatment applications. This approach represents a novel combination of green nanotechnology and statistical optimization for AMX removal.
Source: ACS Omega
DOI: 10.1021/acsomega.5c02529
Language: English
Open Access status: gold
Estimated APC paid: $1,935
OpenAlex ID: W4411212731
FWCI: 1.8
Cites: 63
Cited by: 7
Related to: 10