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Synthesis and characterization of surface-functionalized mesoporous graphene nanohybrid

  • Suchhanda. S. SwainEmail author
  • Lakshmi Unnikrishnan
  • Smita Mohanty
  • Sanjay K. Nayak
Original Article
  • 8 Downloads

Abstract

The current investigation reveals the development of a synthesis route of NPs functionalized graphene through in-situ technique. An approachable platform for achieving dense, uniform, homogeneous coverage, smooth partial reduction with the formation of aggregate-free layers. The self-assembled NPs from the precursor solution behave as efficient solid-state exfoliants to detain re-stacking pattern of the nanosheets. Subsequently, the decorated product was chemically reduced through an ambient green reductant to provide the nanohybrid with tailored functionality and porosity characteristics. Moreover, a comparative analysis for the parent nanofillers including mSiO2 and GO has been investigated. The samples were characterized by the spectroscopic techniques to validate the influence of decoration and the extent of reduction. Furthermore, the particle size distribution analysis and zeta-potential measurements were accomplished; meanwhile, the surface chemistries were authenticated by employing electron microscopic techniques such as FESEM and TEM. All these discussed characterizations endorsed the formulation and proficiency of the nanofillers as promising building blocks to fabricate high-performance nanocomposite structures.

Keywords

Electrostatic interaction In-situ technique Covalent linkage Green reductant Graphene Nps decorated nanohybrid 

Abbreviations

APTES

3-(Aminopropyl) triethoxysilane

CuO

Copper oxide

C2H6O

Ethanol

C6H8O6

l-Ascorbic acid

GO

Graphene oxide

GO_NH4+

Ammonium-activated graphene oxide

HCl

Hydrochloric acid

H2O2

Hydrogen peroxide

H2SO4

Sulfuric acid

KMnO4

Potassium permanganate

mSiO2

APTES-modified nano-silica

NPs

Nanoparticles

NH4Cl

Ammonium chloride

NaOH

Sodium hydroxide

NaNO3

Sodium nitrate

rGO

Reduced graphene oxide

RSGO

Reduced silica-decorated graphene

SiO2

Nano-silica

SGO

Silica-decorated oxidized graphene

TEOS

Tetraethylorthosilicate

TiO2

Titanium dioxide

ZnO

Zinc oxide

Notes

Acknowledgements

The authors would like to thank Science and Engineering Research Board (SERB), Department of Science & Technology (DST), New Delhi for financial assistance for the project (EMR/2014/000940).

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Copyright information

© King Abdulaziz City for Science and Technology 2019

Authors and Affiliations

  1. 1.Laboratory for Advanced Research in Polymeric Materials (LARPM)Central Institute of Plastics Engineering and Technology (CIPET)BhubaneswarIndia

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