Photocatalytic, shielding and cytotoxic properties of reduced graphene oxide and barium ferrite nanocomposite synthesized via green combustion method

Fluorinated Polyimide/Sepia Eumelanin Nanocomposites for Aerospace Applications

“…Graphene oxide (GO) is also generally viewed as a superior filler, and it is gaining popularity. However, it faced the challenge of complex synthesis process and expensive price. − The UV shielding of PI was also significantly aided by silicon dioxide and POSS, although these materials’ primary method of shading relied on light scattering, which lowered the film’s visible light transmittance. , …”

Dynamics of reduced graphene oxide: synthesis and structural models

“…In a drive for furthering the advantages of this method, several reductants derived from renewable biological sources, such as, ascorbic acid, 19,115 Azadirachta indica extract, 116 atriplex halimus leaves extract, 117 clinacanthus nutans (leaf extract), 118 Cetraria islandica ach. extract, 6 eclipta prostrata (phytoextract), 56 Leucas aspera (Thumbe, a leaves extract), 119 terpenoids and polyphenols (vernonia amygdalina extract), 35 Chenopodium album (vegetable extract), 120 olea europaea (olive extract), 121 Murraya koenigii (leaf extract), 122 and green tea extract, 114,[123][124][125] have been reported for RGO synthesis (Table 3).…”

“…Most chemical reduction protocols involve purication steps that are not only monotonous, but also add substantial costs to material development at large-scale. The purication procedures oen involve washing and neutralisation steps with deionised/ultra-pure water to remove excess chemical reductants, centrifuging and drying for ∼24 h. 112,117,119,121,126,128,131 Careful and cost-effective removal of residual reductants must be sought in future research to avoid chemical contaminants that may negatively affect RGO quality and intended applications. Another drawback of chemical reductants is their selective elimination of oxygen moieties.…”

Effects of Mn1-xZnxFe2O4 Nanoparticles Concentration in a Silicone Matrix on Complex Permeability and Permittivity in the 1-10 GHz Range

“…These materials can be synthesized by different preparation methods, such as: conventional oxide blending [16][17][18] , coprecipitation [19][20][21] , sol-gel [22][23][24] and combustion [25][26][27] . However, low purity, heterogeneity, as well as aggregation are factors to be observed in the choice of the technique, especially in applications for electromagnetic absorption.…”