關鍵字查詢 | 類別:期刊論文 | | 關鍵字:Influence of Metal Oxide Nanoparticles Concentration on their Zeta Potential

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1 102/1 數學系 曾琇瑱 教授 期刊論文 發佈 Influence of Metal Oxide Nanoparticles Concentration on their Zeta Potential , [102-1] :Influence of Metal Oxide Nanoparticles Concentration on their Zeta Potential期刊論文Influence of Metal Oxide Nanoparticles Concentration on their Zeta PotentialWang, Nan; Hsu, Chien; Zhu, Lihua; Tseng, Shiojenn; Hsu, Jyh-Ping淡江大學數學學系Zeta potential; Surface charge; Particle concentration; Dissolved CO2Maryland Heights: Academic PressJournal of Colloid and Interface Science 407, pp.22-28In an attempt to estimate the zeta potential of various metal oxide nanoparticles (NPs) dispersed in water, it is interesting to observe that both the magnitude and the sign of this property depend highly upon their concentration. For example, in the case of naked TiO2 at pH 6, the zeta potential increased from -6.7 to 8.2 mV as the particle concentration varied from 0.5 to 5 mg L(-1). As a result, the isoelectric points of naked TiO2, Fe3O4, Fe(OH)3, and Al2O3-coated TiO2 could deviate ca. one, one, two, and three pH units, respectively, depending upon the particle concentration. We showed that these behavio
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