Scholarlink

<p>Nanostructured metal oxides have become integral to the advancement of functional materials for modern electronic, optoelectronic, and environmental technologies. Magnesium oxide (MgO), a wide-bandgap ceramic, is particularly attractive due to its thermal stability, defect-engineered electronic behavior, and surface reactivity. However, its limited photocatalytic and magnetic properties hinder broader applicability in multifunctional systems. In this work, Cu and Zn co-doped MgO nanoparticles were synthesized via a simple co-precipitation route and comprehensively characterized to assess their potential as multifunctional materials. XRD confirmed the formation of a cubic MgO phase and the emergence of secondary CuO and Cu₂O phases at higher Cu levels, suggesting solubility thresholds. SEM analysis revealed morphological evolution from spherical to rod-like structures, and EDX confirmed effective dopant incorporation. UV–Vis spectroscopy demonstrated bandgap tunability from 4.54 to 4.33&#xa0;eV, influenced by doping-induced defect states and crystallite size variation. FTIR spectra revealed characteristic Mg–O and Cu–O stretching vibrations, as well as surface hydroxyl groups. Magnetic measurements indicated room-temperature ferromagnetism arising from oxygen and cation vacancies. Additionally, photocatalytic experiments showed that the Cu<sub>0.03</sub>Zn<sub>0.03</sub>MgO composition achieved outstanding degradation efficiencies (85.2% for methylene blue, 85.2% for methyl orange, and 76.2% for rhodamine B) under UV light. The degradation performance was further modulated by dye concentration, catalyst loading, and the presence of radical scavengers. These findings demonstrate that Cu/Zn co-doped MgO nanoparticles possess highly tunable physicochemical properties, making them strong candidates for integration in UV-driven electronic, magnetic, and photocatalytic device platforms.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Cu/Zn Co-doped MgO nanoparticles with tailored structural, optical, magnetic, and photocatalytic properties for electronic and environmental applications

  • 期刊论文

  • 发表日期：

    2025年10月31日

查看全文
  • Saleem H. Trier,
  • Mushtaq Ali Hussein,
  • Kamran Heydaryan,
  • Shaymaa Awad Kadhim

摘要

Nanostructured metal oxides have become integral to the advancement of functional materials for modern electronic, optoelectronic, and environmental technologies. Magnesium oxide (MgO), a wide-bandgap ceramic, is particularly attractive due to its thermal stability, defect-engineered electronic behavior, and surface reactivity. However, its limited photocatalytic and magnetic properties hinder broader applicability in multifunctional systems. In this work, Cu and Zn co-doped MgO nanoparticles were synthesized via a simple co-precipitation route and comprehensively characterized to assess their potential as multifunctional materials. XRD confirmed the formation of a cubic MgO phase and the emergence of secondary CuO and Cu₂O phases at higher Cu levels, suggesting solubility thresholds. SEM analysis revealed morphological evolution from spherical to rod-like structures, and EDX confirmed effective dopant incorporation. UV–Vis spectroscopy demonstrated bandgap tunability from 4.54 to 4.33 eV, influenced by doping-induced defect states and crystallite size variation. FTIR spectra revealed characteristic Mg–O and Cu–O stretching vibrations, as well as surface hydroxyl groups. Magnetic measurements indicated room-temperature ferromagnetism arising from oxygen and cation vacancies. Additionally, photocatalytic experiments showed that the Cu0.03Zn0.03MgO composition achieved outstanding degradation efficiencies (85.2% for methylene blue, 85.2% for methyl orange, and 76.2% for rhodamine B) under UV light. The degradation performance was further modulated by dye concentration, catalyst loading, and the presence of radical scavengers. These findings demonstrate that Cu/Zn co-doped MgO nanoparticles possess highly tunable physicochemical properties, making them strong candidates for integration in UV-driven electronic, magnetic, and photocatalytic device platforms.