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ZetaPlus Zeta電位測量應用案例-2
閱讀：470 發(fā)布時間：2014-7-18
ZetaPlus Zeta電位測量應用案例
文獻名：pH-dependent surface charging and points of zero charge. IV. Update and new approach
作者：Marek Kosmulski
Department of Electrochemistry, Lublin University of Technology, Nadbystrzycka 38 A, PL-20618 Lublin, Poland
Department of Physical Chemistry, Abo Akademi University, Porthansgatan 3-5, FIN-20500 Abo, Finland
摘要：The recently published points of zero charge (PZC) and isoelectric points (IEPs) of various materials are compiled to update the previous compilation [M. Kosmulski, Surface Charging and Points of Zero Charge, CRC Press, Boca Raton, FL, 2009]. Unlike in previous compilations by the same author [Chemical Properties of Material Surfaces, Dekker, New York, 2001; J. Colloid Interface Sci. 253 (2002) 77; J. Colloid Interface Sci. 275 (2004) 214; J. Colloid Interface Sci. 298 (2006) 730], the materials are sorted not only by the chemical formula, but also by specific product, that is, by brand name (commercially available materials), and by recipe (home-synthesized materials). This new approach indicated that the relatively consistent PZC/IEP reported in the literature for materials having the same chemical formula are due to biased choice of specimens to be studied. Specimens which have PZC/IEP close to the ‘‘recommended” value are selected more often than other specimens (PZC/IEP not reported before or PZC/IEP reported, but different from the ‘‘recommended” value). Thus, the previously published PZC/IEP act as a self-fulfilling prophecy.