Electrochemical degradation of Amaranth aqueous solution on ACF

Li, Fan; Zhou, Y.; Yang, Wu; Chen, Guohua; Yang, Fenglin

doi:10.1016/j.jhazmat.2006.04.008

Cited by 56 publications

(35 citation statements)

References 20 publications

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“…8, there is also nearly no change in the surface structure of ACF before and after 60 min reaction. ACF is a comparatively modern form of porous carbon material with a number of significant advantages over the more traditional powder or granular forms [40]. The X-ray photoelectron spectra of the ACF cathode and RuO 2 /Ti anode are given in Fig.…”

Section: Stability Of the Electrochemical Systemmentioning

confidence: 99%

Cyanide oxidation by singlet oxygen generated via reaction between H 2 O 2 from cathodic reduction and OCl − from anodic oxidation

Tian¹,

Zeng

et al. 2016

Journal of Colloid and Interface Science

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Section: Stability Of the Electrochemical Systemmentioning

confidence: 99%

Cyanide oxidation by singlet oxygen generated via reaction between H 2 O 2 from cathodic reduction and OCl − from anodic oxidation

Tian¹,

Zeng

et al. 2016

Journal of Colloid and Interface Science

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“…The significant improvement in oxygen consumption rate, from 0.090 mg/(L min) to 0.381 mg/(L min), was also observed after the electrosorption treatment (Zhou et al 2014). Due to the inhibition effects of salinity on the growth and activities of microbes, the electrosorption treatment could encourage the biodegradation capacity through salinity mitigation (Fan et al 2006). Besides, electrosorption treatment might also remove some other macromolecules or toxic chemicals, which further contributed to the biodegradability enhancement (Fan et al 2008).…”

Section: Performance Of Electrosorption Treatment For Real Salinity Wmentioning

confidence: 99%

“…Besides, electrosorption treatment might also remove some other macromolecules or toxic chemicals, which further contributed to the biodegradability enhancement (Fan et al 2008). There was only limited research investigating the biodegradability change after electrosorption treatment (Donnaperna et al 2009), and only artificial wastewater samples were tested (Fan et al 2006). From the six possible electrochemical effects on the electrode surface for organic matter removal, the biodegradability improvement might be explained by the capacitive ion storage in the electrical double layer or Faradaic reactions on the electrode surface (Porada et al 2013b).…”

Section: Performance Of Electrosorption Treatment For Real Salinity Wmentioning

confidence: 99%

Electrosorption for organic pollutants removal and desalination by graphite and activated carbon fiber composite electrodes

Zhou

Wang

et al. 2015

Int. J. Environ. Sci. Technol.

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This paper investigates a new type of carbonbased electrodes, which were equipped with graphite and activated carbon fiber composite, to improve the performance of electrosorption. The results indicated that the highest desalination efficiency achieved 55 % and the optimal condition was 1.6 V voltage, 60 min retention time and 1.0 cm electrode distance. Freundlich isotherms successfully fitted with the respective behavior of the composite electrode and provided theoretical evidence for the desalination performance improvement. Applied in real black liquor of refined cotton, the graphite and activated carbon fiber composite electrodes achieved high removal efficiency for conductivity (59 %) and COD Cr (76 %). Similar removal performance was also observed in sodium copper chlorophyll wastewater, and removal efficiency was 37 % for conductivity and 14 % for COD Cr . For the first time, this research demonstrated the biodegradability improvement in real industrial wastewater via electrosorption treatment, suggesting a potential pretreatment technique for high-salinity wastewater.

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“…A three-dimensional (3D) photoelectrode would be a better configuration than that of a 2-D electrode. Under this context, activated carbon fibers (ACF) are ideal material for making 3-D electrodes (Fan et al, 2006). ACF is a highly micro-porous material and has high specific surface area and large pore volume, which can facilitate the adsorption of organic chemicals.…”

Section: Introductionmentioning

confidence: 99%

Electro-photocatalytic degradation of acid orange II using a novel TiO2/ACF photoanode

Hou

Zhao

et al. 2009

Science of The Total Environment

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A novel photoanode was prepared by immobilizing TiO 2 film onto activated carbon fibers (TiO 2 /ACF) using liquid phase deposition (LPD) to study the electro-photocatalytic (EPC) degradation of organic compounds exemplified by an azo-dye, namely, Acid Orange II (AOII).Results demonstrated that by applying a 0.5 V bias (vs. SCE) across the TiO 2 /ACF electrode, the AOII degradation rate was increased significantly compared to that of photocatalytic (PC) oxidation. The application of an electric field promotes the separation of photogenerated electrons and holes as confirmed by electrochemical impedance spectroscopy (EIS) measurements. The structural and surface morphology of the TiO 2 /ACF electrode was characterized by field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). SEM images showed that TiO 2 was deposited on almost every carbon fiber with an average thickness of about 200 nm with the inner space between neighboring fibers being maintained unfilled. The morphological features of the photo-anode facilitated the passage of solution as well as UV light through the felt-form electrode and created a threedimensional environment favorable to EPC oxidation. Both the large outer surface area of the 3D electrode and the good organic adsorption capacity of the ACF support promoted high contact efficiency between AOII and TiO 2 surface. Anatase was the major crystalline TiO 2 deposited. UV-vis spectrophotometry, TOC (total organic carbon) analysis, and HPLC technique were used to monitor the concentration change of AOII and intermediates as to gain insight into the EPC degradation of AOII using the TiO 2 /ACF electrode. IntroductionThe degradation of organic pollutants in water by the photocatalytic semiconductor TiO 2 has attracted extensive attention in recent decades. Many researchers have reported that most refractory organic contaminants such as detergents, dyes, pesticides, and herbicides, can be decomposed by TiO 2 under UV-light irradiation. It has been known also that conventional photooxidation has two major disadvantages: difficulty in solid-liquid separation and low photo-efficiency. For use in TiO 2 suspension, extra effort is needed to separate the photocatalytic TiO 2 particles from water. To deal with the 0 7 ( 2 0 0 9 ) 2 4 3 1 -2 4 3

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Electrochemical degradation of Amaranth aqueous solution on ACF

Cited by 56 publications

References 20 publications

Cyanide oxidation by singlet oxygen generated via reaction between H 2 O 2 from cathodic reduction and OCl − from anodic oxidation

Cyanide oxidation by singlet oxygen generated via reaction between H 2 O 2 from cathodic reduction and OCl − from anodic oxidation

Electrosorption for organic pollutants removal and desalination by graphite and activated carbon fiber composite electrodes

Electro-photocatalytic degradation of acid orange II using a novel TiO2/ACF photoanode

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