研究目的
Investigating the synthesis of graphene oxide and reduced graphene oxide from used electrode graphite with a controlled oxidation process to evaluate the effective oxidation process and its impact on the chemical and structural properties of the resulting materials.
研究成果
The study successfully synthesized graphene oxide and reduced graphene oxide from used electrode graphite using a controlled oxidation process. The results demonstrated that the chemical and structural properties of the materials depend on the oxidation duration. The study suggests that used electrode graphite can be an alternative raw material for producing graphene oxide and reduced graphene oxide, with optimal reaction durations between 12 to 14 hours for higher oxidation levels.
研究不足
The study notes that the oxidation process may leave impurities such as sulphur, potassium, and manganese due to the use of sulfuric acid and potassium permanganate as oxidant agents. The raw material, being used electrode graphite, may also contain impurities affecting the final analysis. The optimal reaction duration for higher oxidation levels is suggested to be between 12 to 14 hours, indicating potential limitations in achieving full oxidation within shorter durations.
1：Experimental Design and Method Selection:
The synthesis of graphene oxide was performed using a modified Hummer’s method with controlled oxidation process. Zinc was used as a green reductant for producing reduced graphene oxide.
2：Sample Selection and Data Sources:
Used electrode graphite was selected as the raw material. Chemicals used included Potassium Permanganate (KMnO4), Sulfuric Acid (H2SO4), Sodium Nitrate (NaNO3), Hydrogen Peroxide (H2O2).
3：2).
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Equipment and materials included used electrode graphite, KMnO4, H2SO4, NaNO3, H2O2, zinc powder, and various laboratory apparatus for mixing, stirring, and drying.
4：Experimental Procedures and Operational Workflow:
The process involved mixing chemicals under controlled temperatures, varying stirring times for oxidation, stopping the reaction with distilled water and H2O2, washing with HCl, and drying. Reduced graphene oxide was prepared by dissolving graphene oxide in distilled water, adding HCl and zinc powder, and then washing and drying.
5：Data Analysis Methods:
Characterization was performed using SEM, EDS, FT-IR, UV-vis, and XRD to analyze the chemical and structural properties of the synthesized materials.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
