Different bio-polymeric matrixes of carrageenan and modified carrageenan with cellulosic nonmaterials were prepared in the form of beads. The nanocellulosic materials were prepared from dissolved bagasse pulp and include cellulose nanocrystals, cellulose nanofibers and tricarboxy cellulose nanofibers. The prepared bio-polymeric matrixes were characterized with transmission electron microscopy, FTIR, X-ray diffraction and scanning electron microscope. The capabilities of carrageenan and modified carrageenan beads to chelate with several metal cations were evaluated. Interestingly, the modification of carrageenan with cellulose nanoparticles obtained high efficiency toward removing Cu2+, Pb2+, Ca2+, Mg2+, and Fe2+. The modified carrageenan with tricarboxy cellulose nanofibers which has higher carboxylate content showed high removal efficiency rather than the other modifications.
Biopolymers Carrageenan Heavy Metal Chelation Nanocellulosic Materials
Tricarboxy cellulose nanofibers
Transmission electron microscopy
Scanning electron microscope
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The authors acknowledge the Science and Technology Development Fund (STDF), Egypt, for financial support of the research activities related to project; Project ID 15203.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interests.
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