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<p>Although paracetamol is an analgesic, antipyretic, and anti-inflammatory drug that doctors widely prescribe, it is harmful to the health of living organisms, including humans, as an environmental pollutant. There are various methods for removing such pollutants, among which, the use of photocatalytic degradation properties of nanocomposites is of great interest as a new method due to their unique characteristics, including stability and lack of production of toxic species. In this study, Fe<sub>2</sub>O<sub>3</sub>-ZnO/Ag nanocomposites were first prepared and then characterized by XRD, FESEM, EDS, and UV-visible analyses. The effect of the amount of nanocomposite and solution pH on the removal of paracetamol was also studied. The results show that 0.025&#xa0;g of Fe<sub>2</sub>O<sub>3</sub>-ZnO/Ag nanocomposite with 72% paracetamol removal (50&#xa0;ml, 10 ppm) in 180&#xa0;min, reaction rate constant 0.007&#xa0;min<sup>− 1</sup> and degradation half-life 99.0&#xa0;min is the optimal amount for paracetamol removal. On the other hand, by changing the pH of paracetamol solution, no significant improvement in photocatalytic degradation and its reaction rate constant by Fe<sub>2</sub>O<sub>3</sub>-ZnO/Ag nanocomposite, was observed.</p>

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Investigation of effective parameters on photocatalytic removal of paracetamol from aqueous environments by Fe2O3-ZnO/Ag nanocomposite

  • 期刊论文

  • 发表日期：

    2026年6月2日

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  • Mansoor Farbod,
  • Vahid Kargar dehbidi

摘要

Although paracetamol is an analgesic, antipyretic, and anti-inflammatory drug that doctors widely prescribe, it is harmful to the health of living organisms, including humans, as an environmental pollutant. There are various methods for removing such pollutants, among which, the use of photocatalytic degradation properties of nanocomposites is of great interest as a new method due to their unique characteristics, including stability and lack of production of toxic species. In this study, Fe2O3-ZnO/Ag nanocomposites were first prepared and then characterized by XRD, FESEM, EDS, and UV-visible analyses. The effect of the amount of nanocomposite and solution pH on the removal of paracetamol was also studied. The results show that 0.025 g of Fe2O3-ZnO/Ag nanocomposite with 72% paracetamol removal (50 ml, 10 ppm) in 180 min, reaction rate constant 0.007 min− 1 and degradation half-life 99.0 min is the optimal amount for paracetamol removal. On the other hand, by changing the pH of paracetamol solution, no significant improvement in photocatalytic degradation and its reaction rate constant by Fe2O3-ZnO/Ag nanocomposite, was observed.