XRD studies confirmed the increase of the interlayer spacing of GO and rGO in between 3.35 to 8.66 A°. AFM studies showed the layer height of rGO to be 1.05 nm after the reduction process. TEM micrographs clearly illustrated that the prepared GO has more than 25 layers, while the rGO ...
Graphene oxide (GO) was synthesized using the modified Hummers method and characterized by XRD and FTIR. The sorption of 60 Co(II) on GO as a function of contact time, pH, polyacrylic acid, ionic strength, temperature and solution concentration was studied by batch technique. The sorption kine...
Polylactic acid (PLA) is one of the most promising biodegradable polymers as it is produced from renewable resources. Amazingly, due to the depletion of petroleum resources, PLA is now viewing as a valuabe biosourced polymer alternative in long-term applications such as automotive and electronics...
The Brønsted acidity of graphene oxide (GO) materials has shown promising activity in organic synthesis. However, roles and functionality of Lewis acid sites remain elusive. Herein, we reported a carbocatalytic approach utilizing both Brønsted and
XRD measurements, the samples were first filtered to remove liquid phase without washing, and then measured on D/Max-2400 with Cu Kα radiation (k = 1.5418 Å). For XPS measurements, the samples were collected, washed and exfoliated with water to remove absorbed sulfuric acid and ...
Reduced Graphene Oxides: Influence of the Reduction Method on the Electrocatalytic Effect towards Nucleic Acid Oxidation For the first time a critical analysis of the influence that four different graphene oxide reduction methods have on the electrochemical properties of the ... B Daniela,P Helena,...
For the purpose of preparing liquefied graphene oxide (GO), a process consisting of sulfonation with sodium sulfanilic acid and ionization with bulky amine... C Zeng,Z Tang,B Guo,... - 《Physical Chemistry Chemical Physics》 被引量: 38发表: 2012年 Preparation of graphene oxide nano-composite...
Approximately 50 mL of GO solution (containing ~ 5 mg GO) was mixed with 1 mg of either Mfp5 or Mfp5(3)protein suspended in 0.5% acetic acid (or equal volume of 0.5% acetic acid for a pure GO control film). If necessary, pH was adjusted to 4.5 with additional acetic acid. ...
loaded zoledronic acid on Mg-Sr alloy to anti-Giant Cell Tumors of Bone (GCTB) [18]. No literature reported photothermal coating on the surface of Mg-based implants for bone tumor therapy by now. The objective of the present study is to fabricate a stable photothermal coating on Mg alloy...
Graphene nanosheets were exfoliated from graphite by a mild chemical treatment including graphite oxidation using sulphuric acid and potassium dichromate, ultrasonic treatment, and chemical reduction by hydroquinone. Pyrrole was coated on graphene nanosheets and carbon nanotubes by in situ polymerization by ...