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Graphene Oxide Reduction Activity of Seaweed Polymer Derivative:Efficient Bio-Based Alternative


Affiliations
1 Natural Products and Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, India
 

The present study demonstrates utilization of functionalized seaweed polysaccharide, namely agarose–gallate (Ag–GAEst) for the preparation of reduced graphene oxide (rGO) under mild reaction conditions. Ag–GAEst obtained with the lowest degree of substitution (degree of substitution (DS) = 0.45; with 1 : 0.5 w/w agarose : gallic acid) shows excellent performance compared to its high DS (1.1; with 1 : 2.0 w/w agarose : gallic acid) ester derivatives. Further, the formation of rGO was confirmed using UV–Vis, TEM, FTIR, Raman spectroscopy, elemental and XRD analysis. This study describes a new application of seaweed-derived polysaccharides.

Keywords

Agarose–Gallate, Biomaterials, Green Approach, Graphene Oxide, Reduction Activity.
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  • Graphene Oxide Reduction Activity of Seaweed Polymer Derivative:Efficient Bio-Based Alternative

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Authors

Nilesh Vadodariya
Natural Products and Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, India
Jai Prakash Chaudhary
Natural Products and Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, India
Faisal Kholiya
Natural Products and Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, India
Mukesh Sharma
Natural Products and Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, India
Ramavatar Meena
Natural Products and Green Chemistry Division, CSIR-Central Salt and Marine Chemicals Research Institute, G.B. Marg, Bhavnagar 364 002, India

Abstract


The present study demonstrates utilization of functionalized seaweed polysaccharide, namely agarose–gallate (Ag–GAEst) for the preparation of reduced graphene oxide (rGO) under mild reaction conditions. Ag–GAEst obtained with the lowest degree of substitution (degree of substitution (DS) = 0.45; with 1 : 0.5 w/w agarose : gallic acid) shows excellent performance compared to its high DS (1.1; with 1 : 2.0 w/w agarose : gallic acid) ester derivatives. Further, the formation of rGO was confirmed using UV–Vis, TEM, FTIR, Raman spectroscopy, elemental and XRD analysis. This study describes a new application of seaweed-derived polysaccharides.

Keywords


Agarose–Gallate, Biomaterials, Green Approach, Graphene Oxide, Reduction Activity.

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DOI: https://doi.org/10.18520/cs%2Fv113%2Fi07%2F1361-1366