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<p>Wolframites-type tungstaes (MWO<sub>x</sub>, where M might be one of this principles metals Fe, Mn, Cu, Ni, Co, Zn, Bi, Ag) have special optical and chemical characteristics that make them effective catalysts. The present review discusses wolframite catalytic uses as well as the diversity and benefits of various production methods. Using pertinent keywords, information was gathered from peer-reviewed sources and research between 2000 and 2024 from the Scopus database. Tungsten, commonly found in nature as part of the wolframite mineral series (primarily (Fe, Mn)WO₄), is characterized by its high density and very high melting point. Wolframite typically crystallizes in a monoclinic structure, and variations in its iron-to-manganese composition influence its electronic structure, band gap, and charge carrier dynamics. In photocatalytic applications, tungsten-based materials operate by absorbing light energy to generate electron-hole pairs that drive redox reactions, enabling processes such as the degradation of organic pollutants and water splitting. However, pure wolframite and related tungsten oxide phases generally exhibit limited activity under visible light due to their relatively wide band gaps and rapid recombination of charge carriers, as well as moderate chemical stability under irradiation. Consequently, their photocatalytic performance is often lower compared to more efficient tungsten-based composite materials such as Bi₂WO₆ and Ag₂WO₄, which possess narrower band gaps, improved visible-light absorption, and enhanced charge separation properties. Future research should prioritize enhancing visible-light responsiveness, recyclability, long-term stability, toxicity control, and scalability to support real-world applications. </p>

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Recent progress in the Environmental Applications of tungstate: Diversity, Synthesis Methods, and Future Recommendations

  • 期刊论文

  • 发表日期：

    2026年6月1日

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  • Fatima Ezzahra Al Azhari,
  • Mohammed BEN ALI,
  • Fouzia Allali,
  • Noureddine TOUACH,
  • Abdellah Benzaouak,
  • Latifa Tajounte,
  • Kaouter Kara,
  • Abdelilah Lahmar,
  • El Mostapha Lotfi

摘要

Wolframites-type tungstaes (MWOx, where M might be one of this principles metals Fe, Mn, Cu, Ni, Co, Zn, Bi, Ag) have special optical and chemical characteristics that make them effective catalysts. The present review discusses wolframite catalytic uses as well as the diversity and benefits of various production methods. Using pertinent keywords, information was gathered from peer-reviewed sources and research between 2000 and 2024 from the Scopus database. Tungsten, commonly found in nature as part of the wolframite mineral series (primarily (Fe, Mn)WO₄), is characterized by its high density and very high melting point. Wolframite typically crystallizes in a monoclinic structure, and variations in its iron-to-manganese composition influence its electronic structure, band gap, and charge carrier dynamics. In photocatalytic applications, tungsten-based materials operate by absorbing light energy to generate electron-hole pairs that drive redox reactions, enabling processes such as the degradation of organic pollutants and water splitting. However, pure wolframite and related tungsten oxide phases generally exhibit limited activity under visible light due to their relatively wide band gaps and rapid recombination of charge carriers, as well as moderate chemical stability under irradiation. Consequently, their photocatalytic performance is often lower compared to more efficient tungsten-based composite materials such as Bi₂WO₆ and Ag₂WO₄, which possess narrower band gaps, improved visible-light absorption, and enhanced charge separation properties. Future research should prioritize enhancing visible-light responsiveness, recyclability, long-term stability, toxicity control, and scalability to support real-world applications.