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Correlation between the Zeta Potential and Rheological Properties of Anatase Dispersions
Journal of Colloid and Interface Science 233, 367–369 (2001) All articles are available online at http://www.idealibrary.com on
ERRATA Volume 230, Number 1 (2000), in the article “Polyvinylpyrrolidone Adsorption on Na-Montmorillonite: Effect of the Polymer Interfacial Conformation on the Colloidal Behavior and Binding of Chemicals,” by J.-M. S´equaris, A. Hild, H. D. Narres, and M. J. Schwuger, pages 73–83 (doi:10.1006/jcis.2000.7046): On page 81, the parameter µ appears incorrectly as µu. The corrected text, with µ restored, reads as follows: “According to this model, the degree of saturation is given by ª © y¯ = 1/2 1 + (s − 1)/[(1 − s)2 + 4s/µ]1/2 ,
[3]
where s = K 0 µ [SDS], and [SDS] is the free surfactant concentration. The overall binding constant K 0 µ includes K 0 , the binding constant of a surfactant with an isolated site, and µ, a cooperative parameter. Thus, K 0 µ is the binding constant for a surfactant at a site adjacent to an occupied site. It can be calculated in [3] that y¯ = 0.5 when s = 1. Thus, K 0 µ = ([SDS])−1 when [SDS] is the free surfactant concentration at y¯ = 0.5.” In Table 2, the best fitting parameters from the nonlinear regression analysis of the results are reported for the PVP loadings 0.45 and 0.55 g PVP/g. The average cluster size of bound SDS at y¯ = 0.5 calculated from m¯ = µ1/2 + 1 is also reported. The fitted curve in Fig. 8 with the parameters in Table 2 also illustrates the good agreement between the binding results and the lattice model. In a general way, it can be seen that K 0 increases and µ decreases when the PVP loading increases, whereas K 0 µ or K remains constant. Thus, weaker initiation (K 0 ) and stronger propagation processes (µ) can be observed at the lowest PVP loading (0.45 g PVP/g) than at the highest PVP loading (0.55 g PVP/g). This erratum is doi:10.1006/jcis.2000.7332.
Volume 209, Number 1 (1999), in the article “Correlation between the Zeta Potential and Rheological Properties of Anatase Dispersions,” by Marek Kosmulski, Jan Gustafsson, and Jarl B. Rosenholm, pages 200–206 (doi:10.1006/jcis.1998.5884): Figures 4 and 5 have incorrect y-axis labels. Corrected versions of these figures follow. The authors thank Professor W. H. van Riemsdijk and his associates, whose comments helped to identify the error.
367 C 2001 by Academic Press Copyright ° All rights of reproduction in any form reserved.
368
ERRATA
FIG. 4. Surface charging of anatase at different ionic strengths. Symbols represent experimental data; lines are calculated for 0.005, 0.1, and 0.3 mol dm−3 inert electrolyte.
FIG. 5. The solvent effect on the surface charging of anatase.
This erratum is doi:10.1006/jcis.2000.7333.
Volume 230, Number 2 (2000), in the article “H2 O Outgassing Properties of Fumed and Precipitated Silica Particles by Temperature-Programmed Desorption,” by Long Ngoc Dinh, Mehdi Balooch, and James Daniel LeMay, pages 432–440 (doi:10.1006/jcis.2000.7131): on page 432, Eq. [1] should read −
dσ = υσ n exp(−E d /RT ). dt
ERRATA Volume 230, Number 1 (2000), in the article “Polyvinylpyrrolidone Adsorption on Na-Montmorillonite: Effect of the Polymer Interfacial Conformation on the Colloidal Behavior and Binding of Chemicals,” by J.-M. S´equaris, A. Hild, H. D. Narres, and M. J. Schwuger, pages 73–83 (doi:10.1006/jcis.2000.7046): On page 81, the parameter µ appears incorrectly as µu. The corrected text, with µ restored, reads as follows: “According to this model, the degree of saturation is given by ª © y¯ = 1/2 1 + (s − 1)/[(1 − s)2 + 4s/µ]1/2 ,
[3]
where s = K 0 µ [SDS], and [SDS] is the free surfactant concentration. The overall binding constant K 0 µ includes K 0 , the binding constant of a surfactant with an isolated site, and µ, a cooperative parameter. Thus, K 0 µ is the binding constant for a surfactant at a site adjacent to an occupied site. It can be calculated in [3] that y¯ = 0.5 when s = 1. Thus, K 0 µ = ([SDS])−1 when [SDS] is the free surfactant concentration at y¯ = 0.5.” In Table 2, the best fitting parameters from the nonlinear regression analysis of the results are reported for the PVP loadings 0.45 and 0.55 g PVP/g. The average cluster size of bound SDS at y¯ = 0.5 calculated from m¯ = µ1/2 + 1 is also reported. The fitted curve in Fig. 8 with the parameters in Table 2 also illustrates the good agreement between the binding results and the lattice model. In a general way, it can be seen that K 0 increases and µ decreases when the PVP loading increases, whereas K 0 µ or K remains constant. Thus, weaker initiation (K 0 ) and stronger propagation processes (µ) can be observed at the lowest PVP loading (0.45 g PVP/g) than at the highest PVP loading (0.55 g PVP/g). This erratum is doi:10.1006/jcis.2000.7332.
Volume 209, Number 1 (1999), in the article “Correlation between the Zeta Potential and Rheological Properties of Anatase Dispersions,” by Marek Kosmulski, Jan Gustafsson, and Jarl B. Rosenholm, pages 200–206 (doi:10.1006/jcis.1998.5884): Figures 4 and 5 have incorrect y-axis labels. Corrected versions of these figures follow. The authors thank Professor W. H. van Riemsdijk and his associates, whose comments helped to identify the error.
367 C 2001 by Academic Press Copyright ° All rights of reproduction in any form reserved.
368
ERRATA
FIG. 4. Surface charging of anatase at different ionic strengths. Symbols represent experimental data; lines are calculated for 0.005, 0.1, and 0.3 mol dm−3 inert electrolyte.
FIG. 5. The solvent effect on the surface charging of anatase.
This erratum is doi:10.1006/jcis.2000.7333.
Volume 230, Number 2 (2000), in the article “H2 O Outgassing Properties of Fumed and Precipitated Silica Particles by Temperature-Programmed Desorption,” by Long Ngoc Dinh, Mehdi Balooch, and James Daniel LeMay, pages 432–440 (doi:10.1006/jcis.2000.7131): on page 432, Eq. [1] should read −
dσ = υσ n exp(−E d /RT ). dt