Graphene oxide is highly desired for printing electronics, catalysis, energy storage, separation membranes, biomedicine, and composites. However, the present synthesis methods depend on the reactions of graphite with mixed strong oxidants, which suffer f
Engineered nanomaterials (such as graphene oxide, GO) have shown great potential in biomedical applications as therapeutic and imaging agents. However, little is known about their potential transformations in biological settings, which may alter their ph
(a) Schematic of graphene growth on Cu using O2-assisted APCVD. (b) Side view of (a). (c) Auger electron spectroscopy (AES) of SiO2before/after annealing at 1000°C in UHV and APCVD systems. The disappearance of O2peak after annealing proves the emission of O2from the oxide at high...
A low-cost and recyclable multifunctional adsorbent for pesticides was successfully prepared based on herb waste (Angelicae Dahuricae Radix slag), nano-zero-valent iron and graphene oxide (AS/NZVI/GO) via facile one-step pyrolysis approach, and applied to remove pesticides from sewage. The AS/NZV...
Graphene oxide (GO) was prepared according to the improved Hummers' method [58]. 2.4. Peroxidase-like activity of GNR Peroxidase-like activity of GNR in the presence of H2O2 and TMB was evaluated and compared with the catalytic activity of GO and MWCNT. To this aim, 100 μL of each ...
Graphene oxide (GO) composites with various metal nanoparticles (NPs) are attracting increasing interest owing to their broad scope in biomedical applications. Here, microwave-assisted chemical reduction was used to deposit nano-silver and zinc oxide NPs (Ag and ZnO NPs) on the surface of reduced...
Graphene oxide has two distinctive features: (1) a primary absorption peak at 230 nm, which can be attributed to the π–π*-transitions of >C=C< in the system of aromatically bonded carbon rings; and (2) a wide shoulder with a maximum at ~300 nm, which is usually associated with ...
The dispersion in the band positions and peak intensities with respect to the laser energy are also demonstrated.doi:10.1063/1.4756995Adarsh KaniyoorSundara RamaprabhuAmerican Institute of PhysicsAIP AdvancesKaniyoor, A.; Ramaprabhu, S. "A Raman spectroscopic investigation of graphite oxide derived ...
there are also specific types of particles that have found application in photocatalysis besides being useful in PDT. As examples, the NPs formed by zinc oxide (ZnO), titanium dioxide (TiO2), fullerene, and graphene have shown this dual ability based on a huge number of papers published to ...
Raman scattering spectroscopy was employed to evaluate the structural characteristics of the LIG. Three notable peaks for the LIG structures, namely D, G, and 2D, were observed at 1330, 1560, and 2680 cm−1, respectively [50]. The D peak indicates structural defects in the graphene structure...