Electrosorption of copper ions by poly(m-phenylenediamine)/reduced graphene oxide synthesized via a one-step in situ redox strategy

Li, Kaijian; Guo, Deyin; Lin, Furong; Wei, Yong; Liu, Wenjie; Kong, Yong

doi:10.1016/j.electacta.2015.02.120

Cited by 32 publications

(20 citation statements)

References 31 publications

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“…In order to understand the electrosorption kinetics in detail, the obtained experimental data was further fitted using equations (12) and (13). Figure and S4 in the supporting information show the pseudo‐first‐order and pseudo‐second‐order kinetics fitted electrosorption data which was studied with variable parameters like concentration and voltage

true l n (() q_{e} - q_{t}) = l n q_{e} - k_{1} t

true \frac{t}{q_{t}} = \frac{1}{k_{2} {q_{e}}^{2}} + \frac{t}{q_{e}}

…”

Section: Resultsmentioning

confidence: 99%

Sweet‐Lime‐Peels‐Derived Activated‐Carbon‐Based Electrode for Highly Efficient Supercapacitor and Flow‐Through Water Desalination

et al. 2019

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In the present work, highly porous activated carbon with an excellent surface area has been successfully synthesized from the agricultural waste product; sweet lime peels (Citrus limetta) using a facile chemical approach. The structural and morphological properties of sweet lime peels derived activated carbon (SLP‐AC) were studied using X‐ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and X‐ray photoelectron spectroscopy (XPS). Brunauer‐Emmett‐Teller (BET) surface area and pore structure were studied using nitrogen adsorption‐desorption isotherms. Electrochemical characterizations were performed in two and three electrode cell configurations using techniques like cyclic voltammetry (CV), Galvanostatic charge‐discharge (GCD) and electrochemical impedance spectroscopy (EIS) in aqueous (1 M H2SO4 and 1 M NaCl) and ionic liquid electrolytes (EMIMBF4). SLP‐AC based electrodes showed high electrochemical charge storage capacity of 421.67 F/g (at 1 A/g) along with outstanding cyclic stability up to 10000 GCD cycles. Fabricated supercapacitor device demonstrated high energy density of 45.53 Wh/kg in the ionic liquid electrolyte. SLP‐AC was also used to prepare the porous sponge electrodes to study their applicability in flow‐through electrode capacitive deionization (CDI), where it achieved the maximum electrosorption capacity of 22.8 mg/g. The electrosorption results fitted well with the Langmuir isotherm and the kinetics study indicates a pseudo‐first‐order kinetic model for the electrosorption of salt ions onto the electrodes surface. This confirms the outstanding performance of SLP‐AC as a highly stable and low‐cost electrode material for supercapacitors and water desalination applications.

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true l n (() q_{e} - q_{t}) = l n q_{e} - k_{1} t

true \frac{t}{q_{t}} = \frac{1}{k_{2} {q_{e}}^{2}} + \frac{t}{q_{e}}

…”

Section: Resultsmentioning

confidence: 99%

Sweet‐Lime‐Peels‐Derived Activated‐Carbon‐Based Electrode for Highly Efficient Supercapacitor and Flow‐Through Water Desalination

et al. 2019

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“…Since the direct redox reaction occurred between GO and aniline or its derivatives has been reported by several groups including us [27][28][29], aniline is used in this work as the reducing agent to reduce GO to G. During the reduction of GO to G, aniline itself is oxidized to aniline oligomers [30], which is adsorbed on the surface of G to form aniline-functionalized G (G-aniline) via strong p-p stacking (Fig. 1).…”

Section: Interfacial Synthesis Of G-p-mn Hybridsmentioning

confidence: 97%

Oil–water interfacial synthesis of graphene–polyaniline–MnO2 hybrids using binary oxidant for high performance supercapacitor

Guo

Chen

et al. 2015

Synthetic Metals

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“…According to literature, the most widely applied models for the adsorption of heavy metals on the bioadsorbent are the Langmuir and Freundlich isotherms [30,35,36]. So, the adsorption of the zinc and a lot of other heavy metals on the orange peel xanthate in aqueous solution was obeyed to the Langmuir isotherm [31].…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Electrosorption Removal of the Zinc Ions from Aqueous Solution on an Artificial Electrode based in the Banana Wastes

Benakouche¹,

Bounoughaz²

2017

J. Electrochem. Sci. Technol

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The valorization of domestic wastes becomes a very important research axis that can reduce the energy consumption and protect our environment. The objective of this study is to remove zinc ions from wastewater by using banana peels after their activation as sensor in the working electrode for an environmental application. Banana peels were dried, crushed and treated with sulfuric acid then mixed with polyaniline to improve their electrical conductivity. Cyclic voltammetry and chronoamperometry were used for electrochemistry tests. The obtained voltammogramms at well optimized conditions of applied potential of-1.3 V/SCE and initial zinc concentration of 0.2M during 2 hours of electrolysis, showed the reduction peak of the zinc at a potential of-1.14 V/SCE, which confirmed the activity of this electrode. The modeling of experimental data revealed that the adsorption was fitted by the Langmuir isotherm with a maximal adsorption capacity of 3.4188 mg/g. Changes in the structure of the powder after the electrosorption was noticed by SEM and EDX. Finally, the dosage of the electrolytic solution showed a diminution of the zinc concentration with yield of 99.99%.

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Electrosorption of copper ions by poly(m-phenylenediamine)/reduced graphene oxide synthesized via a one-step in situ redox strategy

Cited by 32 publications

References 31 publications

Sweet‐Lime‐Peels‐Derived Activated‐Carbon‐Based Electrode for Highly Efficient Supercapacitor and Flow‐Through Water Desalination

Sweet‐Lime‐Peels‐Derived Activated‐Carbon‐Based Electrode for Highly Efficient Supercapacitor and Flow‐Through Water Desalination

Oil–water interfacial synthesis of graphene–polyaniline–MnO2 hybrids using binary oxidant for high performance supercapacitor

Electrosorption Removal of the Zinc Ions from Aqueous Solution on an Artificial Electrode based in the Banana Wastes

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