Electro-enhanced removal of copper ions from aqueous solutions by capacitive deionization

Huang, Sheng-Lung; Fan, Chen-Shiuan; Hou, Chia‐Hung

doi:10.1016/j.jhazmat.2014.05.074

Cited by 145 publications

(33 citation statements)

References 33 publications

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“…It was found that the electrosorption isotherms were consistent with both Langmuir and Freundlich models. At applied potential of À0.8 V, the maximum adsorption capacity of the MnO 2 /CF electrode was 172.88 mg/g, which is considerably higher than 56.62 and 24.57 mg/g, the reported electrosorptive Cu 2+ uptake capacities of ordered mesoporous carbon [10] and activated carbon electrodes [6], respectively. The maximum adsorption capacity of Cu 2+ with this composite electrode based on the MnO 2 loading is 2.2 times higher than that [28] of MnO 2 absorbent without an electric field imposed.…”

Section: Electrosorptive Performance In Cumentioning

confidence: 77%

“…Electrosorption is a separation technology combining adsorption and electrochemical methods, used to remove ionic contaminants such as salt ions [1,2], heavy metal ions [3][4][5][6], anions [7], and organics [8,9] from water, and has received extensive attention and support due to its advantages of both waste minimization and reduced processing costs. It has been generally defined as potential-induced adsorption on the surface of charged electrodes.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of a manganese dioxide/carbon fiber electrode for electrosorptive removal of copper ions from water

Liu

Lan

et al. 2015

Journal of Colloid and Interface Science

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a b s t r a c tMnO 2 is an effective adsorbent for many metal ions and a promising electrode material for electrochemical supercapacitors. In this paper, we successfully combined the two functions through preparing a MnO 2 /carbon fiber (CF) composite as an electrosorptive electrode. The thin MnO 2 film was deposited onto CF by an anodic eletrodeposition method. The MnO 2 /CF electrodes had ideal pseudocapacitive behavior and high capacitive reversibility. The specific capacitance of the MnO 2 /CF electrode reached a maximum value of 387 F/g, which is quite competitive compared with literature values. At 0.8 V applied potential, the maximum Cu 2+ adsorption capacity of the MnO 2 /CF electrode was 172.88 mg/g, which is more than 2 times higher than common MnO 2 adsorbents without an electric field imposed. SEM images showed that MnO 2 nanoflowers with several ''petals'' were uniformly distributed on the CF surface. Enhancement of adsorption by the polarization potential and the unique microstructure of the deposited MnO 2 may be the source of the outstanding adsorption ability of the MnO 2 /CF electrode. The MnO 2 /CF electrode could be regenerated quickly by reversing the voltage. The deposition time of 1000 s was optimum for achieving maximum capacitance and Cu 2+ removal performance. The MnO 2 /CF composite electrosorptive electrode is a promising candidate for Cu 2+ removal from aqueous solution.

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Section: Electrosorptive Performance In Cumentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Preparation of a manganese dioxide/carbon fiber electrode for electrosorptive removal of copper ions from water

Liu

Lan

et al. 2015

Journal of Colloid and Interface Science

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“…Furthermore, membrane filtration processes (Ujang and Anderson 1996;Qdais and Moussa 2004) such as ultrafiltration, nanofiltration, reverse osmosis or electrodialysis are utilized. Coagulation, flocculation, flotation (Fu and Wang 2011) as well as electrochemical treatment (Kongsricharoern and Polprasert 1995;Huang et al 2014) are also among those processes. Unfortunately, all of these methods and processes exhibit drawbacks that limit their utility.…”

Section: Introductionmentioning

confidence: 99%

Phosphorylated nanocellulose papers for copper adsorption from aqueous solutions

Mautner

Maples

Kobkeatthawin

et al. 2016

Int. J. Environ. Sci. Technol.

116

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Copper is a major problem in industrial wastewater streams, seriously affecting the quality of potential drinking water. Several approaches, including continuous membrane processes or batch-wise application of adsorbents, are in use to tackle this problem. Unfortunately, these processes suffer from their particular drawbacks, such as low permeance or disposal of saturated adsorbents. However, a combination of these processes could constitute a step towards a more efficient copper removal solution. Here, we present a nanopaper ion-exchanger prepared from cellulose nanofibrils produced from fibre sludge, a paper industry waste stream, for the efficient, continuous removal of copper from aqueous solutions. This nanopaper ion-exchanger comprises phosphorylated cellulose nanofibrils that were processed into nanopapers by papermaking. The performance of these phosphorylated nanopaper membranes was determined with respect to their rejection of copper and permeance. It was shown that this new type of nanopaper is capable of rejecting copper ions during a filtration process by adsorption. Results suggest that functional groups on the surface of the nanopapers contribute to the adsorption of copper ions to a greater extent than phosphate groups within the bulk of the nanopaper. Moreover, we demonstrated that those nanopaper ion-exchangers could be regenerated and reused and that in the presence of calcium ions, the adsorption capacity for copper was only slightly reduced.

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“…Removal of arsenate ions by CDI favors lower salinity conditions and high pH [28]. Electrosorption of Cu 2+ ions from aqueous solution by activated carbon electrodes was reported by Huang and coworkers [29]. At comparatively low voltage, electrodeposition of copper is restricted and Cu 2+ ions removal on surface of electrode is due purely to electrostactic interaction in the electrical double-layer created in the nanoporous area.…”

Section: Discussion Of Pollutant Ion Removal By CDImentioning

confidence: 90%

Current Progress of Capacitive Deionization for Removal of Pollutant Ions

Gaikwad¹,

Balomajumder²

2016

Electrochemical Energy Technology

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Abstract:A mini review of a recently developing water purification technology capacitive deionization (CDI) applied for removal of pollutant ions is provided. The current progress of CDI for removal of different pollutant ions such as arsenic, fluoride, boron, phosphate, lithium, copper, cadmium, ferric, and nitrate ions is presented. This paper aims at motivating new research opportunities in capacitive deionization technology for removal of pollutant ions from polluted water.

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Electro-enhanced removal of copper ions from aqueous solutions by capacitive deionization

Cited by 145 publications

References 33 publications

Preparation of a manganese dioxide/carbon fiber electrode for electrosorptive removal of copper ions from water

Preparation of a manganese dioxide/carbon fiber electrode for electrosorptive removal of copper ions from water

Phosphorylated nanocellulose papers for copper adsorption from aqueous solutions

Current Progress of Capacitive Deionization for Removal of Pollutant Ions

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