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<p>This research work reports the synthesis of Mn and N codoped WO<sub>3</sub> nanostructures by coprecipitation method. These nanomaterials were characterized by X-ray diffraction, Ultraviolent-visible spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy to evaluate various properties. Bandgap of WO<sub>3</sub> was tuned from 2.53 to 1.87&#xa0;eV by addition of Mn (2% by wt.) and N (5% by wt.) whereas the XRD study validated the stability of WO<sub>3</sub> as it retained its orthorhombic structure after the addition of codopants but decreased the average crystallite size. WO<sub>3</sub>, Mn<sub>2%</sub>-N<sub>1%</sub>-WO<sub>3</sub> and Mn<sub>2%</sub>-N<sub>5%</sub>-WO<sub>3</sub> were analyzed by CV, GCD and EIS analysis to verify the optimizations in electrochemical properties of pure WO<sub>3</sub> by codoping. Mn<sub>2%</sub>-N<sub>5%</sub>-WO<sub>3</sub> showed better energy storage applications, as evident by GCD analysis as the Mn<sub>2%</sub>-N<sub>5%</sub>-WO<sub>3</sub> showed C<sub>sp</sub> of 896.88&#xa0;F/g, 323.9 Wh/kg Energy density and 1799.9&#xa0;W/kg Power density. During photocatalytic degradation process for 175&#xa0;min, WO<sub>3</sub> and Mn<sub>2%</sub>-N<sub>5%</sub>-WO<sub>3</sub> showed 38.41 and 93.11% degradation for MB; 23.3 and 81.9% degradation for Leflox respectively. Therefore, Mn-N-WO<sub>3</sub> is a potential candidate for the removal of harmful pollutants as well as electrode materials for supercapacitors.</p> Graphical Abstract <p></p>

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Enhanced Supercapacitive and Photocatalytic Performance of Mn2%N5%WO3 Nanomaterials: Synthesis, Characterizations, and Dual Applications

  • 期刊论文

  • 发表日期：

    2026年3月3日

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  • Muhammad Tauseef Qureshi,
  • Hassan Imam Rizvi,
  • Ayesha Mushtaq,
  • Tahir Iqbal,
  • Umer Farooq,
  • Sabah Kausar,
  • Ghazala Yunus,
  • Abdul Moiz Mohammed,
  • Azza Mohamed Khaled

摘要

This research work reports the synthesis of Mn and N codoped WO3 nanostructures by coprecipitation method. These nanomaterials were characterized by X-ray diffraction, Ultraviolent-visible spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy and Fourier transform infrared spectroscopy to evaluate various properties. Bandgap of WO3 was tuned from 2.53 to 1.87 eV by addition of Mn (2% by wt.) and N (5% by wt.) whereas the XRD study validated the stability of WO3 as it retained its orthorhombic structure after the addition of codopants but decreased the average crystallite size. WO3, Mn2%-N1%-WO3 and Mn2%-N5%-WO3 were analyzed by CV, GCD and EIS analysis to verify the optimizations in electrochemical properties of pure WO3 by codoping. Mn2%-N5%-WO3 showed better energy storage applications, as evident by GCD analysis as the Mn2%-N5%-WO3 showed Csp of 896.88 F/g, 323.9 Wh/kg Energy density and 1799.9 W/kg Power density. During photocatalytic degradation process for 175 min, WO3 and Mn2%-N5%-WO3 showed 38.41 and 93.11% degradation for MB; 23.3 and 81.9% degradation for Leflox respectively. Therefore, Mn-N-WO3 is a potential candidate for the removal of harmful pollutants as well as electrode materials for supercapacitors.

Graphical Abstract