한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제28권1호
  • /
  • Pages.115-120
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  • 2012
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
권호 표지

이종혼합부유물질의 양에 따른 electrokinetic potential 및 surface energy profile의 변화 양상

Variation of the Electrokinetic Potential and Surface Energy Profile of a Binary Mixture Dispersion with Mixing Ratio

  • 김희진 (이화여자대학교 환경공학과) ;
  • 정혜원 (이화여자대학교 환경공학과) ;
  • 김동수 (이화여자대학교 환경공학과)
  • Kim, Hee-Jin (Department of Environmental Science and Engineering, Ewha Womans University) ;
  • Jeong, Hye-Won (Department of Environmental Science and Engineering, Ewha Womans University) ;
  • Kim, Dong-Su (Department of Environmental Science and Engineering, Ewha Womans University)
  • 발행 : 2012.01.30
⟨ 이전 논문 다음 논문 ⟩

초록

Different colloidal particles generally co-exist in the water and wastewater. Thus, there needs to identify practical electrokinetic characteristics of the particles, comparing with the case when each colloidal material is independently distributed. In this study, changes of overall zeta potential was examined through mixed dispersions of $TiO_{2}$ and $MnO_{2}$. The mixing ratios were classified into 3-type in order to distinguish the effects of the proportions of each particle from those of total concentration in colloidal suspensions. The types are single colloidal dispersions of $TiO_{2}$ and $MnO_{2}$ (1:0, 0:1), mixed dispersions at different ratios (0.75:0.25, 0.5:0.5, 0.25:0.75), and a mixed dispersion with doubled concentration (1:1), respectively. It showed that the overall variation of zeta potential as a function of pH was intensified in a colloidal dispersion with the ratio of 1:1. It was concerned that the double action of ion would contribute to this result. On the one hand, the zeta potentials of each colloidal dispersion commonly decreased at the state of strong acid and base under the influence of compression of the electric double layer. The changing patterns were also considered through calculating total interaction energy between colloidal particles based on DLVO theory and measuring turbidity of the colloidal dispersions.

키워드

참고문헌

  1. 문병현, 서규태, 장덕준(2005). 하천에 함유된 부유입자의 특성에 관한 연구, 수질보전 한국물환경학회지, 21(5), pp. 500-504.
  2. 문진희, 박용성(2006). $MnO_2$ 중공 미세구의 제조에 관한 연구, 한국공업화학회지, 17(6), pp. 648-652.
  3. 오세진, 김동수(2010). 수중입자의 표면 전기적 특성에 미치는 온도의 영향, 수질보전 한국물환경학회지, 26, pp. 525-531.
  4. 이정훈, 양영석(2003). 반응매개체로 사용한 염산과 반응시간이 $TiO_2$ 분말제조에 미치는 영향, 한국공업화학회지, 14(2), pp. 224-229.
  5. 홍기훈, 조성록, 박선규(1989). 소양호 수온약층 존속기간 동안의 영양염류와 입자성 부유물질, 수질보전 한국물환경학회지, 5(1), pp. 35-46.
  6. Anupam, M. and John, N. (2004). The Effect of Surfactants on the Solubility, Zeta Potential, and Viscosity of Soy Protein Isolate, Food Hydrocolloids, 18, pp. 101-108.
  7. Birdi, K. S. (2009). Handbook of Surface and Colloid Chemistry, 3rd ed., CRC Press, pp. 156-157.
  8. Elakneswaran, Y., Nawa, T., and Kurumisawa, K. (2009). Zeta Potential Study of Paste Blends with Slag, Coment & Concrete Conposites, 31, pp. 72-76.
  9. Liang, Y., Hilal, N., Langston, P., and Starov, V. (2007). Interaction Forces Between Colloidal Particles in Liquid : Theory and Experiment, Advanced in Colloid and Interface Science, 134-135, pp. 151-166.
  10. Mirella, D., Catherine, G., Remi, B., Eric, H., and Benoit, M. (2010). Surface Reactivity of ${\alpha}-Al_{2}O_{3}$ and Mechanisms of Phosphate Sorption: In Situ ATR-FTIR Spectroscopy and Zeta Potential Studies, Advanced in Colloid and Interface Science, 342, pp. 437-444.
  11. Ratna, T., Philipp, S., and Paul, Q. (2010). Effect of Nanoparticle Concentration on Zeta-potential Measurement Results and Reproducibility, Particuology, 8, pp. 279-285.
  12. Shaw, D. J. (1992). Introduction to Colloid and Surface Chemistry, Butterworth-Heinemann, Boston, pp. 169-199.
  13. Skule, S., Eli, J. H., and Tor, A. (2006). Wettability Alteration of Carbonates-Effects of Potential Determining Ions ($Ca^{2+}$ and ${SO_4}^{2-}$) and Temperature, Review Article Colloids and Surfaces A: Physicochemical and Engineering Aspects, 275 (1-3), pp. 1-10.
  14. Terence, C. (2005). Colloid Science: Principles, Methods and Applications, Blackwell Publishing, pp. 36-39.