Decomposition of Organic Compounds by UV/TiO2 System
Hui-Jun Won1
1Division of Decontamination and Decommissioning, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
2Department of Chemistry, Kangwon University, Chuncheon-si, Kangwon-do 200-701, South Korea
*Corresponding author: E-mail: nhjwon@kaeri.re.kr
Chong-Hun Jung1
1Division of Decontamination and Decommissioning, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
2Department of Chemistry, Kangwon University, Chuncheon-si, Kangwon-do 200-701, South Korea
*Corresponding author: E-mail: nhjwon@kaeri.re.kr
Cheol-Jin Jung1
1Division of Decontamination and Decommissioning, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
2Department of Chemistry, Kangwon University, Chuncheon-si, Kangwon-do 200-701, South Korea
*Corresponding author: E-mail: nhjwon@kaeri.re.kr
Jei-Kwon Moon1
1Division of Decontamination and Decommissioning, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
2Department of Chemistry, Kangwon University, Chuncheon-si, Kangwon-do 200-701, South Korea
*Corresponding author: E-mail: nhjwon@kaeri.re.kr
Ki-Won Lee1
1Division of Decontamination and Decommissioning, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
2Department of Chemistry, Kangwon University, Chuncheon-si, Kangwon-do 200-701, South Korea
*Corresponding author: E-mail: nhjwon@kaeri.re.kr
Won-Yang Chung2
1Division of Decontamination and Decommissioning, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
2Department of Chemistry, Kangwon University, Chuncheon-si, Kangwon-do 200-701, South Korea
*Corresponding author: E-mail: nhjwon@kaeri.re.kr
Asian Journal of Chemistry,
Vol. 23 No. 5 (2011): Vol 23 Issue 5
The photodecomposition characteristics of EDTA, oxalic acid and ascorbic acid were investigated. Adsorption tests of EDTA, oxalic acid and ascorbic acid on a TiO2 surface were also performed. For a one component system, the order of decomposition rate chosen from a COD measurement was oxalic acid > EDTA > ascorbic acid. For a two component system, the decomposition rate of a mixed EDTA + oxalic acid solution was fastest among the test solutions. Decomposition of an ascorbic acid + oxalic acid solution was more difficult than the decomposition of an EDTA + ascorbic acid solution. This can be explained by the adsorption characteristics of organic compounds onto the TiO2 surface. For a three component system, which was a mixed solution of EDTA, oxalic acid and ascorbic acid, more than 95 % of the total organic carbon was decomposed during a 16 h period. The reaction time was reduced due to the successive application of Fenton process and photodecomposition process
Keywords
DecompositionOrganic compoundsUV/TiO2.
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Won1, H.-J., Jung1, C.-H., Jung1, C.-J., Moon1, J.-K., Lee1, K.-W., & Chung2, W.-Y. (2011). Decomposition of Organic Compounds by UV/TiO2 System. Asian Journal of Chemistry, 23(5), 2266–2268. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/10374
