Photoelectrochemical Degradation of Cyanuric Acid in TiO2 Suspension

Wen Jie Zhang; Jia Wei Bai; Ru Yuan Li

doi:10.4028/www.scientific.net/AMR.113-116.2158

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 113-116Photoelectrochemical Degradation of Cyanuric Acid...

Photoelectrochemical Degradation of Cyanuric Acid in TiO₂ Suspension

Abstract:

Photoelectrochemical degradation of cyanuric acid occurred when the applied potential exceeded 2 V by using Ti electrodes and TiO2 suspension in 0.3 M NaCl solution. The removal increased drastically when the applied potential was more than 5 V. The addition of HCO3- ion could accelerate photoelectrochemical degradation of cyanuric acid. An optimum removal of 85% was achieved when HCO3- ion concentration increased to 0.05 M. Further increase of HCO3- ion led to the decrease of removal, due to consumption of hydroxyl radicals and other oxidizing species by excessive bicarbonate. Photocatalytic oxidation had no capacity on degrading cyanuric acid whether in NaHCO3 aqueous solution or in the solution containing both Cl- and HCO3- ions.

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Periodical:

Advanced Materials Research (Volumes 113-116)

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2158-2161

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.113-116.2158

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Online since:

June 2010

Authors:

Wen Jie Zhang, Jia Wei Bai, Ru Yuan Li

Keywords:

Chlorine, Cyanuric Acid, Photoelectrochemical Degradation, TiO₂

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