Abstract Magnesium oxide nanoparticles were synthesized and modified by olive pomace (NMOOP700) as a novel sorbent and characterized using Fourier Transform Infrared Spectra, Scanning Electron Microscope, Transmission Electron Microscope, X-ray Diffraction, Differential Thermal Analysis and Thermal Gravimetric Analysis. Sorption of Cu (II) or Ni (II) ions were achieved taking into account important parameters including initial pH of the medium, contact time, initial metal ion concentration and temperature. A comparative study between Magnesium oxide nanoparticles and NMOOP700 material for the sorption of Cu (II) or Ni (II) ions was implemented. The obtained data revealed that the sorption process is significantly improved using NMOOP700. The monolayer capacity of Ni (II) and Cu (II) metal ions on NMOOP700 at pH 5 were found to be 149.93 ± 4.4 and 186.219 ± 6.3 mg/g, respectively. Findings of the present work highlight the potential use of NMOOP700 as a novel and effective sorbent material for the removal of Cu (II) or Ni (II) ions from the liquid phase.

中文翻译：

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橄榄果渣在纳米 MgO 改性中用于从水溶液中吸附 Ni(II) 和 Cu(II) 金属离子

摘要 采用橄榄果渣（NMOOP700）作为新型吸附剂合成和改性氧化镁纳米颗粒，并使用傅立叶变换红外光谱、扫描电子显微镜、透射电子显微镜、X 射线衍射、差热分析和热重分析表征。Cu (II) 或 Ni (II) 离子的吸附考虑了重要参数，包括介质的初始 pH 值、接触时间、初始金属离子浓度和温度。实施了氧化镁纳米颗粒和 NMOOP700 材料对 Cu (II) 或 Ni (II) 离子吸附的比较研究。获得的数据表明，使用 NMOOP700 显着改善了吸附过程。发现 NMOOP700 在 pH 值为 5 时 Ni (II) 和 Cu (II) 金属离子的单层容量为 149.93 ± 4。分别为 4 和 186.219 ± 6.3 毫克/克。当前工作的发现突出了 NMOOP700 作为一种新型有效的吸附剂材料的潜在用途，用于从液相中去除 Cu (II) 或 Ni (II) 离子。