scholarly journals Fabrication of Multi-functionalized Graphene Oxide Doped Alginate Hybrid Spheres for Enhanced Fluoride Adsorption

2021 ◽  
Author(s):  
Antonysamy Jeyaseelan ◽  
Natrayasamy Viswanathan ◽  
Mu. Naushad ◽  
Chinna Bathula
Keyword(s):  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Fluoride Adsorption

Design and fabrication of sulfonic acid functionalized graphene oxide for enriched fluoride adsorption

2021 ◽  
pp. 108446
Author(s):  
Antonysamy Jeyaseelan ◽  
Khadijah Mohammedsalesh M. Katubi ◽  
Norah Salem Alsaiari ◽  
Mu. Naushad ◽  
Natrayasamy Viswanathan
Keyword(s):  
Graphene Oxide ◽  
Sulfonic Acid ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Fluoride Adsorption

scholarly journals Fabrication of Multifunctionalized Graphene Oxide Doped Alginate Hybrid Spheres for Enhanced Fluoride Adsorption

2021 ◽  
Author(s):  
Antonysamy Jeyaseelan ◽  
Natrayasamy Viswanathan
Keyword(s):  
Graphene Oxide ◽  
Interaction Mechanism ◽  
Functionalized Graphene ◽  
Field Sample ◽  
Batch Mode ◽  
Functionalized Graphene Oxide ◽  
Fluoride Adsorption ◽  
Amine Functionalized ◽  
The Cost ◽  
And Diffusion

Abstract In this present investigation, amine functionalized graphene oxide (AGO) doped on alginate (Alg) polymeric matrix gives AGO@Alg hybrid spheres was developed to explore its potential towards fluoride retention. The vital characterization techniques namely FTIR, TGA, SEM and XPS analysis of AGO@Alg hybrid spheres were acquired to identify its physicochemical properties. The liable parameters for fluoride adsorption onto AGO@Alg hybrid spheres were optimized in a batch mode to attain enhance defluoridation capacity (DC). The prepared AGO@Alg hybrid spheres follow the electrostatic interaction mechanism on defluoridation. The adsorption isotherms (Fruendlich, Langmuir, Temkin and Dubinin-Radushkevich (D-R) models), kinetics (reaction and diffusion based models) and thermodynamic parameters (ΔS°, ΔG° and ΔH°) were surveyed at 303, 313 and 323 K. To lessen the cost-effectiveness of AGO@Alg hybrid spheres the recyclability test was conducted. The aptness of AGO@Alg hybrid spheres was also scrutinized for the fluoride contaminated field sample collected from fluoride endemic village.

Polymer Functionalized Graphene Oxide: A Versatile Nanoplatform for Drug/Gene Delivery

2015 ◽  
Vol 19 (18) ◽  
pp. 1828-1837 ◽  
Author(s):  
George V. Theodosopoulos ◽  
Panayiotis Bilalis ◽  
Georgios Sakellariou
Keyword(s):  
Graphene Oxide ◽  
Gene Delivery ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

A covalently cross-linked reduced functionalized graphene oxide/polyurethane composite based on Diels–Alder chemistry and its potential application in healable flexible electronics

2017 ◽  
Vol 5 (1) ◽  
pp. 220-228 ◽  
Author(s):  
Jinhui Li ◽  
Guoping Zhang ◽  
Rong Sun ◽  
Ching-Ping Wong
Keyword(s):  
Graphene Oxide ◽  
Flexible Electronics ◽  
Potential Application ◽  
High Efficiency ◽  
Diels Alder ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Polyurethane Composite

A novel composite of reduced functionalized graphene oxide/polyurethane based on Diels–Alder chemistry was developed which could be healed microwaves with high efficiency and applied in healable flexible electronics.

Layer by layer assembled functionalized graphene oxide-based polymer brushes for superlubricity on steel-steel tribocontact

Soft Matter ◽  
2021 ◽  
Author(s):  
Suprakash Samanta ◽  
Rashmi Ranjan Sahoo
Keyword(s):  
Graphene Oxide ◽  
Nucleophilic Addition ◽  
Polymer Brushes ◽  
Addition Reaction ◽  
Layer By Layer ◽  
Functionalized Graphene ◽  
Covalent Functionalization ◽  
Functionalized Graphene Oxide ◽  
Nucleophilic Addition Reaction ◽  
Branched Polyethylenimine

Present study demonstrates a simple and multistep approach for the preparation of covalent functionalization of chemically prepared graphene oxide (GO) by branched polyethylenimine (PEI) through nucleophilic addition reaction to prepare...

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