Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Selection of Optimum Ratio of 3 Components (Ir-Sn-Sb) Electrode using Design of Mixture Experiments

혼합물 실험계획법을 이용한 3성분(Ir-Sn-Sb) 전극의 최적비율 선정

  • Received : 2016.03.11
  • Accepted : 2016.04.06
  • Published : 2016.05.31
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Abstract

For electrolysis process using an insoluble electrode, electrochemical performance was greatly affected by the manufacturing method and procedure, such as the firing temperature, pre-treatment, type of precursor solution, coating method, electrode material, etc. Components of the electrode therein is one of the most important factors in electrochemical reaction. To achieve such characteristics, a appropriate ratio of the electrode material should be carefully chosen. The aim of this research was to apply experimental design method in the optimization of electrode component for the maximum generation of oxidants in electrochemical oxidation process. Mixture design, especially expanded simplex lattice design, in DOME (design of mixture experiments) with Design Expert - commercial software - was used to analyze the data. Analysis of variance (ANOVA) showed a high coefficient of determination ($R^2$) value of 0.9470, thus ensuring a satisfactory adjustment of the $3^{rd}$ order special cubic regression model with the experimental data. The application of response surface methodology (RSM) yielded the following regression equation, which is an empirical relationship between the TRO generation concentration and independent variables(mol ratio of 3 electrode components) in a real unit: TRO generation concentration $(mg/L)=TRO\;conc.=98.25{\times}[Ir]+49.71{\times}[Sn]+95.29{\times}[Sb]-16.91{\times}[Ir]{\times}[Sn]-29.47{\times}[Ir]{\times}[Sb]-22.65{\times}[Sn]{\times}[Sb]+703.19{\times}[Ir]{\times}[Sn]{\times}[Sb]$. The optimized formulation of the 3 component electrode for an high TRO (total residual oxidants) generation was acquired at mol ratio of Ir 0.406, Sn 0.210, Sb 0.384 (desirability d value, 1).

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References

  1. Cha, H. G., Seo, M. H., Lee, H. Y., Lee, J. H., Lee, D. S., Shin, K. S., Choi, K. H., 2015, Enhancing the efficacy of electrolytic chlorination for ballast water treatment by adding carbon dioxide, Marine Pollu. Bull., 95, 315-323. https://doi.org/10.1016/j.marpolbul.2015.03.025
  2. Chen, G., Chen, X., Yue, P. L., 2002, Electrochemical behavior of novel $Ti/IrO_2-Sb_2O_5-SnO_2$, J. Phys. chem. B., 106, 4364-4369. https://doi.org/10.1021/jp013547o
  3. Design-Expert$^{(R)}$ Software, 2007, Version 7.1 User's guide, 1-30.
  4. Jeong, H. J., Lee, K. P., Chung, H. S., Kim, D. S., Kim, H. S., Choi, Y. H., Im, D. S., Seong, J. H., Lee, Y. G., 2015, Optimization mixture ratio of Petasites japonicus, Luffa cylindrica and Houttuynia cordata to develop a functional drink by mixture design, J. of Life Sci., 25(3), 329-335. https://doi.org/10.5352/JLS.2015.25.3.329
  5. Kim, D. S., Park, Y. S., 2009a, A Study on the preparation of the dimensionally stable anode(DSA) with high generation rate of oxidants(1), J. Environ. Sci., 18(1), 49-60.
  6. Kim, D. S., Park, Y. S., 2009b, A Study on the preparation of the dimensionally stable anode(DSA) with high generation rate of oxidants(2), J. Environ. Sci., 18(1), 61-72.
  7. Kim, D. S., Park, Y. S., 2011, A Basic study of plasma reactor of dielectric barrier discharge for the water treatment, J. Environ. Sci., 20(5), 623-630.
  8. Kim, S. J., Park, J. I., 2005, An Optimum design of secondary battery using design of experiments with mixture, IE Interfaces, 18(4), 402-411.
  9. Lee, S. H., 2008, Engineers statistical data analysis using Minitab, Iretech., 779-801.
  10. Nanayakkara, K. G. N., Zheng, Y. M., Alam, A. K. M. K., Zou, S., Chen, J. P., 2011, Electrochemical disinfection for ballast water management: Technology development and risk assessment, Marine Pollu. Bul., 63, 119-123. https://doi.org/10.1016/j.marpolbul.2011.03.003
  11. Park, S. H., Kim, J. U., 2011, Modern desing of experiments using MINITAB, 2nd ed., Min-Young Sa, Seoul, 480-491.
  12. Park, S. H., Lim, D. C., Kim, K. S., Bae, J. R., Jeon, O. H., 2010, A Study of the optimization of the compounded PP Using the DOE, Transactions of Kor. Soc. Auto. Eng, 18(1), 74-85.
  13. Park, Y. S., Lee, K. S., Park, Y. S., Kim, D. S., 2014, Discussion of optimal component ratio of Ir-Sn-Sb electrode by experimental design method of mixture, Proceedings of the Kor. Environ. Sci. Soc. Conf., 23, 383-385.