Study on Zeta Potential of Micron-Size Tourmaline Powders

Abstract:

Zeta potential of micron-size tourmaline powders are studied using the laser granulometer and the Zeta potential analyzer. The result from the experiment shows, in the neutral condition, the micron-size tourmaline is negatively charged under water and Elbaite powder has the highest Zeta potential among all tested ones; the smaller the tourmaline powder is, the higher Zeta potential it has; heat-treated samples under reducing conditions have higher Zeta potential than those under oxidizing conditions by 4~5 mV; Dravites isoelectric point is 3.4, falling within the acid range.

• Periodical: Advanced Materials Research (Volumes 785-786)
• Pages: 395-399
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.785-786.395
• Online since: September 2013
• Authors: Xiao Hui Zhang, Rui Hua Wu
• Keywords: Isoelectric Point, Micron-Size, Tourmaline, Zeta Potential

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