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<p>Global environmental pollution, particularly from organic pollutants in water, is a critical issue, making their effective removal a top priority. Consequently, developing an efficient, eco-friendly and cost-effective catalyst for wastewater remediation is of great interest. Herein, we have synthesized MnO using three different precursors, i.e., succinic acid, adipic acid and oxalic acid via wet-chemical method to remove organic pollutants. The synthesis is verified by XRD and FTIR investigations. Surface morphology visualization at nanoscale is accomplished using FESEM. The optical absorption in visible regime has been confirmed through UV–Visible spectroscopy. MnO displayed outstanding photodegradation ability by completely deteriorating MB, MO, and MG in 90, 120, and 150&#xa0;min, respectively, under Halogen-lamp irradiation. The impressive photodegradation efficacy is credited to visible light absorption and increased reactive sites for pollutant adsorption and degradation reaction. These results underscore the potential of MnO as an effective catalyst for photodegradation of organic pollutants for commercial usage.</p> Graphical abstract <p></p>

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Exploring the catalytic potential of MnO for photodegradation of organic dyes

  • 期刊论文

  • 发表日期：

    2025年1月9日

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  • Zulfiqar Ali,
  • Mamoona Saif,
  • Faisal Nawaz,
  • Iqra Fareed,
  • Muhammad Danish Khan,
  • Aroosha Saif,
  • Masood ul Hassan Farooq

摘要

Global environmental pollution, particularly from organic pollutants in water, is a critical issue, making their effective removal a top priority. Consequently, developing an efficient, eco-friendly and cost-effective catalyst for wastewater remediation is of great interest. Herein, we have synthesized MnO using three different precursors, i.e., succinic acid, adipic acid and oxalic acid via wet-chemical method to remove organic pollutants. The synthesis is verified by XRD and FTIR investigations. Surface morphology visualization at nanoscale is accomplished using FESEM. The optical absorption in visible regime has been confirmed through UV–Visible spectroscopy. MnO displayed outstanding photodegradation ability by completely deteriorating MB, MO, and MG in 90, 120, and 150 min, respectively, under Halogen-lamp irradiation. The impressive photodegradation efficacy is credited to visible light absorption and increased reactive sites for pollutant adsorption and degradation reaction. These results underscore the potential of MnO as an effective catalyst for photodegradation of organic pollutants for commercial usage.

Graphical abstract