Low cost activated carbon derived from Cucumis melo fruit peel for electrochemical supercapacitor application

Elaiyappillai, Elanthamilan; Rajkumar, S.; Yesuraj, Johnbosco; Devakumar, Premkumar; Murugesan, Kumaresan; Kesavan, K. Shree; Johnson, Princy Merlin

doi:10.1016/j.apsusc.2019.05.004

Cited by 105 publications

(53 citation statements)

References 50 publications

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“…e EDX spectra showed the presence of two major peaks of oxygen and carbon with abundance percentages of 52.48% and 25.43% in the DPAC adsorbent, respectively, while the corresponding abundance ratio were 52.2% and 24.2% in the PPAC adsorbent. In general, the high percentages of oxygen and carbon are closely related to the nature of the PPs and DPs used [35]. Additionally, some minor peaks were detected in the PPAC adsorbent, which belong to Mg (5.1%), Si (3.1%), and K (3%).…”

Section: Resultsmentioning

confidence: 97%

“…Our findings are concordant with those obtained by Al-Qahtani et al [64] who reported that the pseudosecond-order model reflected the adsorption of Ni(II), Pb(II), and Cu(II) onto the surface of some extremophilic cyanobacterial mats. In addition, several studies proved that the pseudo-second-order kinetic model fit the data well for the adsorption processes of Pb(II), Cd(II), and Hg onto the surfaces of different adsorbents [27,35,41,65]. e proposed adsorption mechanism onto the PPAC and DPAC is demonstrated in Figure 14.…”

Section: Pseudo-second-order Modelmentioning

confidence: 87%

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Using Pomegranate Peel and Date Pit Activated Carbon for the Removal of Cadmium and Lead Ions from Aqueous Solution

Al-onazi

Ali

AlGarni

2021

Journal of Chemistry

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Some agricultural byproducts are useful for solving wastewater pollution problems. These byproducts are of low cost and are effective and ecofriendly. The study aim was to investigate the possibility of using pomegranate peel (PP) and date pit (DP) activated carbon (PPAC and DPAC, respectively) as sorbents to remove Cd(II) and Pb(II) from aqueous solutions. Agricultural wastes of DPs and PPs were subjected to carbonization and chemical activation with H3PO4 (60%) and ZnCl2 and used as adsorbents to remove Cd(II) and Pb(II) from their aqueous solutions. The physical characterizations of PPAC and DPAC, including determination of surface area, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and Fourier-transform infrared spectroscopy, were performed. The following factors affected adsorption: solution pH, adsorbent dosage, initial metal ion concentration, and contact time. These factors were studied to identify the optimal adsorption conditions. The results showed that the maximum adsorptions of Cd(II) and Pb(II) were achieved at pH ranging from 6 to 6.5, 90 min contact time, and 0.5 g/L for PPAC and 1 g/L for DPAC dosage. Furthermore, the adsorption efficiencies for both Pb(II) and Cd(II) were higher for PPAC than for DPAC. However, the recorded Qmax values for PPAC were 68.6 and 53.8 mg/g for Pb(II) and Cd(II) and for DPAC were 34.18 and 32.90 mg/g for Pb(II) and Cd(II), respectively. The Langmuir isotherm model fit the adsorption data better than the Freundlich model. Kinetically, the adsorption reaction followed a pseudo-second-order reaction model, with qe ranging from 12.0 to 22.37 mg/g and an R2 value of 0.99.

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Section: Resultsmentioning

confidence: 97%

Section: Pseudo-second-order Modelmentioning

confidence: 87%

Using Pomegranate Peel and Date Pit Activated Carbon for the Removal of Cadmium and Lead Ions from Aqueous Solution

Al-onazi

Ali

AlGarni

2021

Journal of Chemistry

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“…4f). This results indicated that acid-treated ACbased supercapacitor showed excellent cycle stability in the charge/discharge process due to its large surface area and hydrophilic properties which decreased resistance between electrode/electrolyte interface [26]. We have also investigated CV, EIS, GCD and C sp of the acid-treated AC-based supercapacitor.…”

Section: Resultsmentioning

confidence: 83%

Capacitive behavior of functionalized activated carbon-based all-solid-state supercapacitor

2021

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In this report, we incorporate activated carbon (AC) onto aluminum substrate via doctor blade method to produce an all-solid-state supercapacitor. The electrochemical properties of the all-solid-state supercapacitor were characterized by cyclic voltammetry and electrochemical impedance spectroscopy. Galvanostatic charge/discharge tests also were carried out to exhibit stability of the AC-based supercapacitor. The impedance and charge/discharge curves of the all-solid-state supercapacitor showed good capacitive behavior after functionalized AC. The highest specific capacitance obtained for the AC-based supercapacitor was 106 F g−1. About 160% of specific capacitance increased after functionalization of the AC, which indicated that modification of the AC by nitric acid was able to introduce functional groups on the AC and improve its electrochemical performances.

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“…Several nanostructured carbons, including graphene, carbon nanotubes, carbon nanofibers, have been studied, but activated carbon is preferred due to its low cost for production and environmental reasons [15]. Activated carbon can be prepared through physical/chemical processes with baobab fruit shell, coir pith, cucumis melo fruit peel, teakwood sawdust, and it is possible to fabricate electrode of energy storage devices with low cost [16][17][18][19]. Nevertheless, AC has been limited to the absorption/desorption process due to its complex pore structure.…”

Section: Introductionmentioning

confidence: 99%

Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

2021

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In this study, we investigated that the activated carbon (AC)-based supercapacitor and introduced SIFSIX-3-Ni as a porous conducting additive to increase its electrochemical performances of AC/SIFSIX-3-Ni composite-based supercapacitor. The AC/SIFSIX-3-Ni composites are coated onto the aluminum substrate using the doctor blade method and conducted an ion-gel electrolyte to produce a symmetrical supercapacitor. The electrochemical properties of the AC/SIFSIX-3-Ni composite-based supercapacitor are evaluated through cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge/discharge tests (GCD). The AC/SIFSIX-3-Ni composite-based supercapacitor showed reasonable capacitive behavior in various electrochemical measurements, including CV, EIS, and GCD. The highest specific capacitance of the AC/SIFSIX-3-Ni composite-based supercapacitor was 129 F g−1 at 20 mV s−1.

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Low cost activated carbon derived from Cucumis melo fruit peel for electrochemical supercapacitor application

Cited by 105 publications

References 50 publications

Using Pomegranate Peel and Date Pit Activated Carbon for the Removal of Cadmium and Lead Ions from Aqueous Solution

Using Pomegranate Peel and Date Pit Activated Carbon for the Removal of Cadmium and Lead Ions from Aqueous Solution

Capacitive behavior of functionalized activated carbon-based all-solid-state supercapacitor

Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

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