A simple, economical one-pot microwave assisted synthesis of nitrogen and sulfur co-doped graphene for high energy supercapacitors

Domga,; Karnan, M.; Oladoyinbo, Fatai O.; Noumi, Guy Bertrand; Tchatchueng, Jean Bosco; Sieliechi, Marie Joseph; Sathish, M.; Pattanayak, Deepak K.

doi:10.1016/j.electacta.2020.135999

Cited by 48 publications

(16 citation statements)

References 67 publications

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“…Similarly, Chen et al observed an increase in the content of carboxyl groups (C = O and C-O) after treatment of activated carbon with H 3 PO 4 which are bene cial (Chen et al 2015).In the Raman spectroscopy of carbonaceous based material, the main characteristic are the D and G bands as shown in Fig.1c. The D band ascribed to the disorder-induced in carbonaceous based material appearing around 1340 cm − 1 ; while the G band is usually assigned to the in-plan vibrational mode appearing at 1580 cm − 1(Domga et al 2020). As expected, all the samples possessed two bands at 1345 and 1585 cm − 1 corresponding to D and G band respectively.…”

supporting

confidence: 66%

Facile Synthesis of Activated Carbon Derived from Rice Husk and Jatropha Shell, Characterization and its Application in the Enhanced Adsorption of Cu2+ and Fe2+ in Aqueous Solution

Abia

Domga

et al. 2022

Preprint

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In this study, rice husk and jatropha shell were employed as precursors for the production of activated carbon by thermal and chemical activation process using phosphoric acid (H3PO4). The thermally activated carbon derived rice husk (RH) and jatropha shell (JS) and phosphoric acid activated derived rice husk (RH-Ac) and jatropha shell (JS-Ac) were characterized using BET, XRD, FTIR, Raman spectroscopy, SEM and XPS analysis. It showed that the cavities developed on the surfaces of RH-Ac and JS-Ac were be more high than those RH and JS. The BET surface area of RH, JS, RH-Ac and JS-Ac were 694.3 m2/g, 723.1 m2/g, 1261.3 m2/g and 1327.7 m2/g, respectively. The XPS analysis revealed that RH and JS exhibited the relative lower contents of carbonyl and phenol carbon than RH-Ac and JC-Ac. The as-prepared RH-Ac and JC-Ac were employed for the adsorption of Cu2+ and Fe2+ due to it better physicochemical properties. The most important influencing factors the adsorption of these metal ions such as pH, contact time, initial concentration were systematically studied. Experimental results were well analyzed by Langmuir model with the maximum adsorption ability of Cu2+ (22.773 mg/g), Fe2+ (25.431 mg/g) onto RH-Ac and Cu2+ (32.458 mg/g) and Fe2+ (56.179 mg/g) onto JS-Ac, which showed to be high in comparison to the similar activated carbon available obtained by other researchers. The pseudo 2nd order model showed that adsorption kinetic of Fe2+ and Cu2+ ions onto the JS-AC and RH-Ac has domination towards chemisorption. Moreover, thermodynamic parameters suggested that RS-Ac and JS-Ac for Cu (II) and Fe (II) adsorption phenomenon was endothermic and spontaneous. The high availability, facile production along with high performance of RH-Ac and JS-Ac make it an economically adsorbent for Fe (II) and Cu (II) adsorption.

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supporting

confidence: 66%

Facile Synthesis of Activated Carbon Derived from Rice Husk and Jatropha Shell, Characterization and its Application in the Enhanced Adsorption of Cu2+ and Fe2+ in Aqueous Solution

Abia

Domga

et al. 2022

Preprint

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“…The results are shown in Figure S2 . It can be found that after cobalt doping, the obvious peak positions of the material did not change, that is, they all have characteristic absorption in similar positions, stretching vibration peaks appear at 3433, 1580, 1400, and 1130 cm −1 which can be associated with O-H, carbonyl (C-C/C=C), C-S and C-O, respectively [ 31 , 37 ]. Based on this, we obtain Figure 4 a–d corresponding to the valence binding energy peaks of several main elements XPS data graph after our date processing on behalf of sulfur (S 2p), carbon (C 1s), oxygen (O 1s) and cobalt (Co 2p), respectively.…”

Section: Resultsmentioning

confidence: 99%

Efficient Activation of Peroxymonosulfate by Cobalt Supported Used Resin Based Carbon Ball Catalyst for the Degradation of Ibuprofen

Zhou

Zhang

et al. 2022

Materials

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The extensive use of ibuprofen (IBU) and other pharmaceuticals and personal care products (PPCPs) causes them widely to exist in nature and be frequently detected in water bodies. Advanced catalytic oxidation processes (AOPs) are often used as an efficient way to degrade them, and the research on heterogeneous catalysts has become a hot spot in the field of AOPs. Among transitional metal-based catalysts, metal cobalt has been proved to be an effective element in activating peroxymonosulfate (PMS) to produce strong oxidizing components. In this study, the used D001 resin served as the matrix material and through simple impregnation and calcination, cobalt was successfully fixed on the carbon ball in the form of cobalt sulfide. When the catalyst was used to activate persulfate to degrade IBU, it was found that under certain reaction conditions, the degradation rate in one hour could exceed 70%, which was far higher than that of PMS and resin carbon balls alone. Here, we discussed the effects of catalyst loading, PMS concentration, pH value and temperature on IBU degradation. Through quenching experiments, it was found that SO4− and ·OH played a major role in the degradation process. The material has the advantages of simple preparation, low cost and convenient recovery, as well as realizing the purpose of reuse and degrading organic pollutants efficiently.

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“…However, the use of microwave-assisted synthesis route has been found to provide a fast, facile, environmentally friendly and low cost one-pot synthesis method for producing homogenously doped graphene-based materials. [29][30][31][32] Additionally, the microwave-assisted synthesis route facilitates faster simultaneous reduction and doping of graphene oxide nanostructures. 29,31,33 As such, via the use of this one-pot synthesis technique the current work aims to elucidate the role played by B/ N dopant domains in the sensing performance of B/N co-doped reduced graphene oxide nanosheets for the detection of the commonly misused VOCs.…”

Section: Introductionmentioning

confidence: 99%

“…[29][30][31][32] Additionally, the microwave-assisted synthesis route facilitates faster simultaneous reduction and doping of graphene oxide nanostructures. 29,31,33 As such, via the use of this one-pot synthesis technique the current work aims to elucidate the role played by B/ N dopant domains in the sensing performance of B/N co-doped reduced graphene oxide nanosheets for the detection of the commonly misused VOCs.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous microwave-assisted reduction and B/N co-doping of graphene oxide for selective recognition of VOCs

et al. 2022

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A simple, economical one-pot microwave assisted synthesis of nitrogen and sulfur co-doped graphene for high energy supercapacitors

Cited by 48 publications

References 67 publications

Facile Synthesis of Activated Carbon Derived from Rice Husk and Jatropha Shell, Characterization and its Application in the Enhanced Adsorption of Cu2+ and Fe2+ in Aqueous Solution

Facile Synthesis of Activated Carbon Derived from Rice Husk and Jatropha Shell, Characterization and its Application in the Enhanced Adsorption of Cu2+ and Fe2+ in Aqueous Solution

Efficient Activation of Peroxymonosulfate by Cobalt Supported Used Resin Based Carbon Ball Catalyst for the Degradation of Ibuprofen

Simultaneous microwave-assisted reduction and B/N co-doping of graphene oxide for selective recognition of VOCs

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