Recent development of mixed metal oxide anodes for electrochemical oxidation of organic pollutants in water

Wu, Wei‐Yi; Huang, Zheqing; Lim, Teik−Thye

doi:10.1016/j.apcata.2014.04.035

Cited by 285 publications

(108 citation statements)

References 243 publications

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“…In the lower pH range, the dominant form of active chlorine was hypochlorous acid (E 0 (HClO/Cl 2 ) = 1.63 V or E 0 (HClO/Cl À ) = 1.48 V), which exhibited considerably higher oxidation potential than hypochlorite (E 0 (OCl À /Cl À ) = 0.89 V) in alkaline media [30]. In our case, removal of cyanide was performed at strong alkaline condition in order to avoid the generation of HCN.…”

Section: Comparison Of Three Systems For Cyanide Removalmentioning

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: Comparison Of Three Systems For Cyanide Removalmentioning

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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“…Nevertheless, DSA ® -type electrodes present significant electrocatalytic performances and prolonged life-time than those anodes [12,21]. In this study, we used CDN as model molecule to evaluate the performance of binary (Ti/TiO2-RuO2) and ternary (Ti/TiO2-RuO2-IrO2) DSA ® -type anodes as electrocatalytic materials to degrade recalcitrant phenolic compounds from the cashew-nut industry.…”

Section: Figurementioning

confidence: 99%

“…Currently, many electrode materials have been prepared and used for degrading organic pollutants in water, such as carbon materials [13,15], noble metals [16,17], alloys [18], modified clay [19], metallic nanoparticles [17,20] and mainly metal oxides [12,14,21], with low overpotential for both oxygen and hydrogen evolution.…”

Section: Figurementioning

confidence: 99%

Electrooxidation of cardanol on mixed metal oxide (RuO2-TiO2 and IrO2-RuO2-TiO2) coated titanium anodes: insights into recalcitrant phenolic compounds

Santos

Medeiros

Oliveira

et al. 2016

Electrochimica Acta

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“…This trend cannot be rationalized based on the remaining amount of produced O 2 dissolved in the anode. One of the possibilities is the polarization of photoelectrodes during the i-V measurements at high voltage to modify the band bending (charge balance at the surface) at the surface of photocatalysts [25][26][27][28][29].…”

Section: Loss Region Of a Polymer Electrolyte Fuel Cell (Pefc)mentioning

confidence: 99%

Recyclable PhotoFuel Cell for Use of Acidic Water as a Medium

Ogura

Yoshiba

Izumi

2015

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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-We reported a new PhotoFuel Cell (PFC) comprising two photocatalysts for use of acidic water as a recyclable medium. Nitrogen and oxygen flow was required in the photoanode and photocathode, respectively. In this study, we developed a gas-circulating PFC that needs no gas supply from outside. In the gas-circulating PFC, the reverse reaction of water oxidation at the anode was prevented by the gas flow of photogenerated O 2 from the anode to the cathode inside the PFC. The gas-circulating PFC accommodated an organic solvent layer over the aqueous electrolyte for the anode, and also a vent hole in the upper part of the Proton-Conducting Polymer (PCP) film. O 2 transferred from the anode electrolyte to the organic solvent due to the solubility difference between the HCl solution and organic solvent. O 2 transfer from the gas phase in the anode to that in the cathode was achieved by the vent hole in the PCP film due to the pressure difference due to the progress of the reaction. By the addition of a hexane layer to the anode of the PFC, it was demonstrated to achieve a photocurrent value of 69.7 lA per 1.3 cm 2 of photocatalysts. However, in the stability tests for more than 7 h, the small amount of remaining O 2 in the electrolyte (2.85 lmol L À1 ) exhibited serious effects on the PFC performance. The I SC , V OC and P Max values of the gas-circulating PFC were 29.2 lA, 1.18 V and 6.10 lW, that were 40%, 74% and 44%, respectively, of those for a N 2 and O 2 flow-type PFC. Apparently, photocurrents were dramatically suppressed by the reverse reaction at the photoanode in the extended tests for the gas-circulating PFC.

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Recent development of mixed metal oxide anodes for electrochemical oxidation of organic pollutants in water

Cited by 285 publications

References 243 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

Electrooxidation of cardanol on mixed metal oxide (RuO2-TiO2 and IrO2-RuO2-TiO2) coated titanium anodes: insights into recalcitrant phenolic compounds

Recyclable PhotoFuel Cell for Use of Acidic Water as a Medium

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