Organic–Inorganic Nanocomposites for Water Treatment

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Materials".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 351

Special Issue Editor


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Guest Editor
Laboratoire d’Ingénierie, d’Electrochimie, de Modélisation et d’Environnement, Department of Chemistry, Sidi Mohamed Ben Abedellah University, Fes 30030, Morocco
Interests: advanced nanomaterials; nanocomposites; wastewater treatment

Special Issue Information

Dear Colleagues,

Rapid industrialization, urbanization, population growth, and other activities have led to a paucity of clean water in quality. The introduction of organic and inorganic pollutants into water systems from industrial and agricultural activities has caused major health impacts as well as environmental issues. Water pollution has attracted great attention among engineers and researchers. However, it is necessary to provide valuable and simple solutions to this phenomenon. Several techniques, including adsorption, membrane technologies, advanced oxidation processes (AOPs), and photodegradation, have been developed to achieve water treatment. Adsorbents like metal oxides and activated carbon are frequently used to remove contaminants. Towards this purpose, the efficient use of a variety of organic and inorganic nanocomposites and other materials is preferred and they can be considered alternative materials in this approach.  Recent research has focused on developing novel, highly efficient nanocomposites as catalytic systems that are ecological and friendly. Due to their unique properties, it has shown extraordinary potential among the various catalytic materials explored. Advanced nanocomposites have several qualities such as a large surface area, varied porosity, enhanced chemical and thermal stability, and the ability to include a wide range of active species in their structure. The purpose of this Special Issue is to discuss the challenges and opportunities of advanced nanomaterials and developed technologies for wastewater treatment and resource recovery. The focus of this Special Issue is on new nanocomposites and advanced technologies, concepts, and process designs to sustainably remove emergent pollutants from wastewater. Additionally, authors may report on the feasibility of using the advanced and innovative nanomaterials and their economical approaches for full-scale applications.

Prof. Dr. Hanane Tounsadi
Guest Editor

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Keywords

  • wastewater
  • water contamination
  • inorganic nanomaterials
  • organic nanocomposites
  • emergent pollutants
  • advanced nanomaterials
  • advanced technologies
  • sustainable development
  • green synthesis
  • chemical synthesis
  • photocatalytic systems

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Published Papers (1 paper)

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Research

23 pages, 7246 KiB  
Article
Facile Synthesis and Characterization of Novel CoFe2O4@MgO@(Mg0.23Co0.77)(Mg0.35Co1.65)O4@C and CoFe2O4@MgO@C Nanocomposites for Efficient Removal of Zn(II) Ions from Aqueous Media
by Ehab A. Abdelrahman, Reem K. Shah, Mortaga M. Abou-Krisha, Fawaz A. Saad and Abdalla M. Khedr
Inorganics 2025, 13(4), 101; https://doi.org/10.3390/inorganics13040101 - 23 Mar 2025
Viewed by 235
Abstract
Excessive levels of Zn(II) ions in aquatic environments pose significant risks to both ecosystems and human health. In aquatic systems, Zn(II) ions disrupt metabolic functions in organisms, leading to toxicity and bioaccumulation. For humans, prolonged exposure can result in gastrointestinal distress, immune system [...] Read more.
Excessive levels of Zn(II) ions in aquatic environments pose significant risks to both ecosystems and human health. In aquatic systems, Zn(II) ions disrupt metabolic functions in organisms, leading to toxicity and bioaccumulation. For humans, prolonged exposure can result in gastrointestinal distress, immune system dysfunction, and neurological complications, necessitating effective removal strategies. This study reports the synthesis and characterization of CoFe-MgO-C-M600 (CoFe2O4@MgO@(Mg0.23Co0.77)(Mg0.35Co1.65)O4@C) and CoFe-MgO-C-M800 (CoFe2O4@MgO@C) nanocomposites for the efficient removal of Zn(II) ions from aqueous media. The nanocomposites were synthesized using the Pechini sol-gel method and characterized through X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), field emission scanning electron microscopy (FE-SEM), and high-resolution transmission electron microscopy (HR-TEM). XRD analysis confirmed the crystalline structure of both nanocomposites, with CoFe-MgO-C-M600 exhibiting a smaller average crystallite size (38.67 nm) than CoFe-MgO-C-M800 (75.48 nm). EDX results verified the elemental composition of the nanocomposites, ensuring the successful incorporation of key elements. FE-SEM analysis revealed significant morphological differences, with CoFe-MgO-C-M600 displaying smaller and more uniform grains compared to CoFe-MgO-C-M800. The results show that CoFe-MgO-C-M600 possesses a highly porous and interconnected structure, enhancing its surface area and adsorption potential. In contrast, CoFe-MgO-C-M800 demonstrates larger and more compact grains, which may affect its adsorption performance. HR-TEM further confirmed these findings, demonstrating that CoFe-MgO-C-M600 had a smaller average particle diameter (35.45 nm) than CoFe-MgO-C-M800 (321.14 nm). Adsorption studies indicated that CoFe-MgO-C-M600 and CoFe-MgO-C-M800 achieved maximum adsorption capacities of 276.24 and 200.00 mg/g, respectively. The adsorption process was determined to be exothermic, spontaneous, and physical in nature, following the pseudo-second-order kinetic model and the Langmuir isotherm. Full article
(This article belongs to the Special Issue Organic–Inorganic Nanocomposites for Water Treatment)
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