Scholarlink

<p>Water treatment has become a pressing global issue due to the increasing number of pollution sources. Among the major contributors to water contamination is the widespread use of dyes, such as Alizarin Red S, across various industries. In this study, Zn-MOF nanoparticles were prepared using the conventional solvothermal method and characterized through Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscope coupled with energy dispersive X-ray spectroscopy (SEM-EDX), Brunauer-Emmett-Teller (BET) analysis as well as thermogravimetric analysis (TGA). The adsorption performance of Zn-MOF nanoparticles for removing Alizarin Red S (ARS) was investigated using batch adsorption experiments. Key parameters, including Zn-MOF dosage, initial ARS concentration, pH and contact time were evaluated under ambient conditions. The results demonstrated an ARS removal efficiency of approximately 71% at pH 4, a Zn-MOF dosage of 1&#xa0;g/L and a primary ARS concentration of 20 ppm within 40&#xa0;min. Additionally, the material exhibited reusability for up to three cycles, maintaining a removal efficiency of 60%. Freundlich, Langmuir, and Temkin were three isotherm and kinetic models applied to illustrate the adsorption mechanism. Adsorption was found to align with the Langmuir isotherm model as well as following pseudo-second-order kinetics.</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

Synthesis and characterization of novel zinc–organic framework for the effective removal of Alizarin Red S

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月8日

查看全文
  • Mohamed A. Abdelwahab,
  • Abdelhamid M. Abdelhamid,
  • Ayman S. Eliwa,
  • Ashraqat M. Abdelhamid,
  • Sohaila Abdelhady,
  • Soad Auf,
  • Hala A. Awad,
  • Raghad M. Abdelkader,
  • Jana Ghanem,
  • Malak H. Mohamed,
  • Mariam Gamaleldin,
  • Saher A. Ali,
  • Gehad G. Mohamed,
  • Maha Alhelf

摘要

Water treatment has become a pressing global issue due to the increasing number of pollution sources. Among the major contributors to water contamination is the widespread use of dyes, such as Alizarin Red S, across various industries. In this study, Zn-MOF nanoparticles were prepared using the conventional solvothermal method and characterized through Fourier-transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscope coupled with energy dispersive X-ray spectroscopy (SEM-EDX), Brunauer-Emmett-Teller (BET) analysis as well as thermogravimetric analysis (TGA). The adsorption performance of Zn-MOF nanoparticles for removing Alizarin Red S (ARS) was investigated using batch adsorption experiments. Key parameters, including Zn-MOF dosage, initial ARS concentration, pH and contact time were evaluated under ambient conditions. The results demonstrated an ARS removal efficiency of approximately 71% at pH 4, a Zn-MOF dosage of 1 g/L and a primary ARS concentration of 20 ppm within 40 min. Additionally, the material exhibited reusability for up to three cycles, maintaining a removal efficiency of 60%. Freundlich, Langmuir, and Temkin were three isotherm and kinetic models applied to illustrate the adsorption mechanism. Adsorption was found to align with the Langmuir isotherm model as well as following pseudo-second-order kinetics.