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<p>This study explores the synthesis and characterization of Nd-doped Zn-based metal-organic frameworks (MOFs) via microwave (Zn-MOF-M) and hydrothermal (Zn-MOF-A) methods. Nd incorporation influenced structural and physicochemical properties including reduced thermal stability and surface area as shown by TGA and BET analyses. The BET surface area of Zn-MOF-M decreased from 41.0 m<sup>2</sup>/g to 19.3 m<sup>2</sup>/g after Nd doping, while Zn-MOF-A showed a decrease from 15.6 m<sup>2</sup>/g to 9.98 m<sup>2</sup>/g. TGA revealed earlier decomposition in Zn/Nd-MOF-M (at 259 °C) compared with its pristine counterpart (at 409 °C), whereas the hydrothermal series retained higher stability up to 435 °C. XPS confirmed elemental changes such as decreased Zn content (from 9.54% in Zn-MOF-M to 8.34% in Zn/Nd-MOF-M) and altered bonding environments of oxygen and nitrogen. These results highlight the impact of Nd-doping and synthesis technique on MOF performance which could offer insights into the tunability of MOF properties for contribution to materials chemistry and solid-state physics.</p> Graphical Abstract <p></p>

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Synthesis, characterization, and physicochemical properties of Zn-based metal-organic frameworks: Nd-doping effects and comparative analysis of microwave vs. hydrothermal techniques

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月5日

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  • Hatem A. Mahmoud,
  • Lobna Abdel-Mohsen E. Nassr,
  • Tarek T. Ali,
  • Esraa A. A. Mahmoud,
  • Ibrahim M. A. Mohamed

摘要

This study explores the synthesis and characterization of Nd-doped Zn-based metal-organic frameworks (MOFs) via microwave (Zn-MOF-M) and hydrothermal (Zn-MOF-A) methods. Nd incorporation influenced structural and physicochemical properties including reduced thermal stability and surface area as shown by TGA and BET analyses. The BET surface area of Zn-MOF-M decreased from 41.0 m2/g to 19.3 m2/g after Nd doping, while Zn-MOF-A showed a decrease from 15.6 m2/g to 9.98 m2/g. TGA revealed earlier decomposition in Zn/Nd-MOF-M (at 259 °C) compared with its pristine counterpart (at 409 °C), whereas the hydrothermal series retained higher stability up to 435 °C. XPS confirmed elemental changes such as decreased Zn content (from 9.54% in Zn-MOF-M to 8.34% in Zn/Nd-MOF-M) and altered bonding environments of oxygen and nitrogen. These results highlight the impact of Nd-doping and synthesis technique on MOF performance which could offer insights into the tunability of MOF properties for contribution to materials chemistry and solid-state physics.

Graphical Abstract