A simple, eco-friendly and green approach to synthesis of blue photoluminescent potassium-doped graphene oxide from agriculture waste for bio-imaging applications

Binder-free reduced graphene oxide as electrode material for efficient supercapacitor with aqueous and polymer electrolytes

“…29 Further, graphite was oxidized via a modified Hummer method, and due to this, graphite converts into GO, which shows a new peak in Figure 2(b) at 2 θ = 11.42°. 2 In addition, the XRD spectra were also used for calculating the number of layers of GO, and we have found that two to three layers 30 –33 are in good agreement with the Raman spectra of GO. After this process, GO was reduced via hydrazine hydrate, which converts the GO into the rGO, with the characteristics broad peak of rGO to be 2 θ = 28.71° (Figure 2(c)).…”

Vanadium pentaoxide-doped waste plastic-derived graphene nanocomposite for supercapacitors: a comparative electrochemical study of low and high metal oxide doping

“…17 Graphene can be used in various applications, like fuel cells, biosensors, concrete materials drug delivery, polymer nanocomposites, energy conversion and storage devices. [17][18][19][20][21] The production of graphene with WP as the precursor using MPA leads us to the cost-effective and eco-friendly solution to WP and related issues. The recycling of WP using MPA can also act as a viable approach to ensure the quantity, quality, and low-cost production of the value products, such as graphene, irrespective of the source.…”

Solid waste-derived carbon nanomaterials for supercapacitor applications: a recent overview

“…Finally, filtration was done by using 0.2-micron pore sized nylon filter paper. Obtained filtered liquid was dried at 100 °C and thus obtained material identified as potassium doped graphene oxide [87].…”