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Related Experiment Video

Updated: Jul 4, 2026

Synthesis and Characterization of Fe-doped Aluminosilicate Nanotubes with Enhanced Electron Conductive Properties
09:34

Synthesis and Characterization of Fe-doped Aluminosilicate Nanotubes with Enhanced Electron Conductive Properties

Published on: November 15, 2016

Magnetic Alginate-Based Composite Beads Incorporating Cu/TiO2: Synthesis, Structure-Property Relationships, and

Supanit Chungyampin1,2, Kathawut Rawangkay1,2, Kulwadee Ponanunrirk1,2

  • 1Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani 12110, Thailand.

ACS Omega
|July 3, 2026
PubMed
Summary

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Magnetic alginate beads incorporating copper/titanium dioxide and magnetite were developed for efficient chemical reactions. These novel composite beads offer a promising platform for catalysis and magnetic recovery in chemical processes.

Area of Science:

  • Materials Science
  • Catalysis
  • Polymer Chemistry

Background:

  • Developing efficient and recoverable catalysts is crucial for sustainable chemical synthesis.
  • Polymer-inorganic hybrid materials offer unique properties for catalytic applications.
  • Alginate-based composites provide a versatile matrix for integrating active catalytic components.

Purpose of the Study:

  • To fabricate magnetic alginate-based composite beads integrating Cu/TiO2 and magnetite (Fe3O4) for magnetic recovery.
  • To investigate the impact of Fe3O4 loading on the beads' structural and physicochemical properties.
  • To evaluate the catalytic performance of these composite beads in the hydrogenation of glacial acetic acid.

Main Methods:

  • Ionotropic gelation was used to synthesize magnetic alginate-based composite beads.

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Last Updated: Jul 4, 2026

Synthesis and Characterization of Fe-doped Aluminosilicate Nanotubes with Enhanced Electron Conductive Properties
09:34

Synthesis and Characterization of Fe-doped Aluminosilicate Nanotubes with Enhanced Electron Conductive Properties

Published on: November 15, 2016

Preparation of Cross-Linked Sodium Alginate Microspheres with Different Metal Ions Using the Microfluidic Electrospray Technology
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Preparation of Cross-Linked Sodium Alginate Microspheres with Different Metal Ions Using the Microfluidic Electrospray Technology

Published on: June 7, 2024

  • The structural and physicochemical properties (e.g., encapsulation, swelling, density, morphology) were analyzed.
  • The catalytic activity was tested in the hydrogenation of glacial acetic acid, with varying Cu loading.

    • Main Results:

    • Composite beads with optimized Fe3O4 loading (S-1.0Fe3O4-SA) showed good structural integrity and accessibility.
    • The S-1.0Fe3O4/SA-1.8Cu/TiO2-0.4 catalyst achieved the highest ethanol production (18.69 mg L-1).
    • Catalyst performance was dependent on Cu loading, with moderate content being optimal; recycling revealed gradual deactivation.

    Conclusions:

    • Alginate-based magnetic composite beads are a promising polymer-supported platform for catalysis.
    • Macromolecular structure plays a critical role in dictating the functional performance of these catalytic beads.
    • The developed beads offer efficient magnetic recovery and tunable catalytic activity for chemical transformations.