Synthesis and characterization of surface-functionalized mesoporous graphene nanohybrid
- 8 Downloads
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.
KeywordsElectrostatic interaction In-situ technique Covalent linkage Green reductant Graphene Nps decorated nanohybrid
Ammonium-activated graphene oxide
Reduced graphene oxide
Reduced silica-decorated graphene
Silica-decorated oxidized graphene
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).
- Haeri SZ, Ramezanzadeh B (2017) Enhancement of the mechanical properties of an epoxy composite through inclusion of graphene oxide nanosheets functionalized with silica nanoparticles through one and two steps sol-gel routes. Prog Org Coat 111:1–12. https://doi.org/10.1016/j.porgcoat.2017.05.003 CrossRefGoogle Scholar
- Haeri SZ, Ramezanzadeh B, Asghari M (2017) A novel fabrication of a high performance SiO2-graphene oxide (GO) nanohybrids: characterization of thermal properties of epoxy nanocomposites filled with SiO2-GO nanohybrids. J Colloid Interface Sci 493:111–122. https://doi.org/10.1016/j.jcis.2017.01.016 CrossRefGoogle Scholar
- Liu Z, Zhang H, Zhang Y (2017) Improving thermal conductivity of styrene-butadiene rubber composites by incorporating mesoporous silica@solvothermal reduced graphene oxide hybrid nanosheets with low graphene content. Compos Sci Technol 150:174–180. https://doi.org/10.1016/j.compscitech.2017.07.023 CrossRefGoogle Scholar
- Sadri R, Kamali KZ, Hosseini M, Zubir N, Kazi SN, Ahmadi G, Dahari M, Huang NM, Moradi (2017) A experimental study on thermo-physical and rheological properties of highly stable and green reduced graphene oxide nanofluids: hydrothermal assisted technique. J Dispers Sci Technol 38:1302–1310. https://doi.org/10.1080/01932691.2016.1234387 CrossRefGoogle Scholar
- Si W, Wu X, Zhou J, Guo F, Zhou S, Cui H, Xing W (2013) Reduced graphene oxide aerogel with high-rate supercapacitive performance in aqueouselectrolytes. Nano Res Lett 8:247. http://www.nanoscalereslett.com/content/8/1/247