Synthesis of graphite oxide using hummers method: Oxidation time influence

Ciptasari, Nurhayati Indah; Darsono, Nono; Handayani, Murni; Soedarsono, Johny Wahyuadi

doi:10.1063/5.0061586

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…The suspension was then washed with DI H 2 O by centrifugation. After we obtained the neutral pH of the solution, we dried the residue for 24 h at 70 °C using an oven [43,44,46,47].…”

Section: Graphene Oxide (Go) Synthesismentioning

confidence: 99%

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Hermadianti,

Handayani,

Anggoro

et al. 2024

Nanotechnology

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In this study, ceramic materials of Mg(Ti0.99Sn0.01)O3 were synthesized and decorated on reduced graphene oxide, forming a nanocomposite of rGO/Mg(Ti0.99Sn0.01)O3 (rGO/MTS001). The successful synthesis results were confirmed by XRD, UV-Vis analysis, FT-IR, and SEM-EDS. The MTS001 has a flower-like morphology from SEM analysis, and the nanocomposites of rGO/MTS001 showed MTS001 particles decorated on rGO's surface. The electrochemical performance of rGO/MTS001 compared and MTS001 was investigated by determining the specific capacitance obtained in 1 M H2SO4 solution by cyclic voltammetry (CV), followed by galvanostatic charge-discharge (GCD) analysis using a three-electrode setup. The rGO/MTS001 achieved a specific capacitance of 361.97 F g‒1, compared to MTS001 (194.90 F g‒1). The capacitance retention of rGO/MTS001 nanocomposite also depicted excellent cyclic stability of 95.72% after 5000 cycles at a current density of 0.1 A g‒1. The result showed that the nanocomposite of ceramics with graphene materials has a potential for high-performance supercapacitor electrodes.

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“…The suspension was then washed with DI H 2 O by centrifugation. After we obtained the neutral pH of the solution, we dried the residue for 24 h at 70 °C using an oven [43,44,46,47].…”

Section: Graphene Oxide (Go) Synthesismentioning

confidence: 99%

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Hermadianti,

Handayani,

Anggoro

et al. 2024

Nanotechnology

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“…Graphite oxide was synthesized using the modified hummer method from the previous report [30,31]. Amount of 1.5 g of graphite; 1.5 g NaNO 3 ; and 70 mL of H 2 SO 4 mixed into a 1 L beaker (ice bath).…”

Section: Synthesis Of Graphite Oxidementioning

confidence: 99%

Synthesis of nanocomposites reduced graphene oxide-silver nanoparticles prepared by hydrothermal technique using sodium borohydride as a reductor for photocatalytic degradation of Pb ions in aqueous solution

Ciptasari

Handayani

Kaharudin

et al. 2022

EEJET

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Heavy metals are pollutants that are harmful to living things and the environment can be degraded by microbes or understood by other living things so that they can cause health problems. One of the heavy metals that is often found in wastewater is lead. Lead is widely used in the manufacture of batteries, metal products such as ammunition, cable coatings, Polyvinyl Chloride (PVC) tubing, solder, chemicals and dyes This use causes humans to be exposed to large amounts of lead. One method to deal with lead pollution is to use photocatalysts. Photocatalysts react with heavy metals and reduce them so that the level of toxicity becomes lower than before through photocatalytic reactions. In this study, synthesis of reduced graphene oxide/silver nanoparticle nanoparticles was performed by facile hydrothermal methods for photocatalytic degradation of Pb ion. The characterization results indicate that the synthesis has been successfully carried out. The successful result of rGO/AgNPs nanocomposites synthesis was proved by several techniques such as X-ray diffraction analysis, Raman, UV-Vis spectroscopy, Scanning Electron Microscopy (SEM) and Energy Dispersive X-Ray analysis (EDX). This indicates the presence of these groups in the graphene oxide and rGO/AgNPs samples, respectively. The resulting rGO/AgNPs nanocomposite has an absorbance peak at a wavelength of 267 nm. The diffraction peaks for nanocomposites rGO/AgNPs and their Miller indices were 38.08° (111), 44.16° (200), 64.44° (220), and 77.44° (311). The Raman spectra of rGO/AgNPs exhibits D bands at 1334,13 with intensity of 630,60 cm−1 and G band at 1594,61 with intensity of 477,29 cm−1. The ID/IG ratio rGO/AgNPs-NaBH4 is ~1,32. Furthermore, the photocatalytic activity test results showed that the rGO/AgNPs nanocomposite was able to reduce Pb2+ to Pb with a maximum exposure time of 1.5 hours

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Photocataylitic performance assessment of rGO-AgNPs nanocomposites using urea reductor for methyl orange dye degradation

Ciptasari,

Handayani,

Afkauni

et al. 2024

5TH INTERNATIONAL SEMINAR ON METALLURGY AND MATERIALS (ISMM2022): Strengthening Research and Innovation in Metallurgy and Mater

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Synthesis of graphite oxide using hummers method: Oxidation time influence

Cited by 3 publications

References 12 publications

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Synthesis of nanocomposites reduced graphene oxide-silver nanoparticles prepared by hydrothermal technique using sodium borohydride as a reductor for photocatalytic degradation of Pb ions in aqueous solution

Photocataylitic performance assessment of rGO-AgNPs nanocomposites using urea reductor for methyl orange dye degradation

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Synthesis of graphite oxide using hummers method: Oxidation time influence

Cited by 3 publications

References 12 publications

Flower like-novel nanocomposite of Mg(Ti0.99Sn0.01)O3 decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Flower like-novel nanocomposite of Mg(Ti0.99Sn0.01)O3 decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Synthesis of nanocomposites reduced graphene oxide-silver nanoparticles prepared by hydrothermal technique using sodium borohydride as a reductor for photocatalytic degradation of Pb ions in aqueous solution

Photocataylitic performance assessment of rGO-AgNPs nanocomposites using urea reductor for methyl orange dye degradation

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Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes

Flower like-novel nanocomposite of Mg(Ti_0.99Sn_0.01)O₃ decorated on reduced graphene oxide (rGO) with high capacitive behavior as supercapacitor electrodes