http://experimentationlab.berkeley.edu/sites/default/files/AFMImages/butt_AFM.pdf

Force measurements with the atomic force microscope: Technique, interpretation and applications

1: Magnetic Particles: Preparation, Properties and Applications: M. Ozaki. 2: Maghemite (gamma-Fe2O3): A Versatile Magnetic Colloidal Material C.J. Serna, M.P. Morales. 3: Dynamics of Adsorption and Oxidation of Organic Molecules on Illuminated Titanium Dioxide Particles Immersed in Water M.A. Blesa, R.J. Candal, S.A. Bilmes. 4: Colloidal Aggregation in Two-Dimensions A. Moncho-Jorda, F. Martinez-Lopez, M.A. Cabrerizo-Vilchez, R. Hidalgo Alvarez, M. Quesada-PMerez. 5: Kinetics of Particle and Protein Adsorption Z. Adamczyk.

Surface and Colloid Science

Contact angle measurement and contact angle interpretation

This paper presents a review of catalytic ozonation and methods of enhancing molecular ozone reactions in water treatment. It is also an attempt to propose general ideas about mechanisms governing catalytic ozone reactions. Catalytic ozonation is a new means of contaminants removal from drinking water and wastewater. Its application is mainly limited to laboratory use. However, due to successful results further investigation is to be carried out. The majority of models proposed represent more of a speculative approach to the problem than a hypothesis based on experimental data. It is therefore useful to provide a summary of the accomplishments concerning catalytic ozonation and methods of enhancing molecular ozone reactions that were published so far. A survey of the application of several homo- and heterogeneous catalysts, their activity and the parameters influencing the efficiency of catalytic systems is presented here as a short overview, the aim of which is to raise awareness of possible new approaches to water purification.

Catalytic ozonation and methods of enhancing molecular ozone reactions in water treatment

Colloid mobilization and transport in groundwater

A quantitative theory is presented which describes the kinetics of coagulation of colloidal systems containing more than one dispersed species. A general expression has been derived to describe the potential energy of interaction between dissimilar spherical colloidal particles, using the linear (Debye-Huckel) approximation for low surface potentials. An overall stability ratio has been defined which takes into account the possibility of interactions between like, as well as unlike, particles in the system. The errors introduced by the use of the linear approximation have been assessed in terms of their effects on the stability ratio, and found to be quite small. The theory has been used to describe the behaviour of a hypothetical system under various conditions.

Mutual coagulation of colloidal dispersions

C>r)re of --4 D./A. However, care should be taken sincewe initially assumed that 'P' A. a.nd 'P'B are orthogonal a.nd in this case the homopolar dipole vanishes. If we had included the overlap integral, then the primary moments would have changed somewhat. Ackr&OtDl«IgmentB. We wish to thank Proiessor Harrison Shull for his interest and hospitality. Our tha.nks a.re &Iso due to Mr. John P. Chandler and ~Ir. Robert Fern for their help with computational pro\>lems.

/pdf/mechanisms-of-alkyl-sulfonate-adsorption-at-the-alumina-435glkkm41.pdf

Douglas W. Fuerstenau

Papers

Mutual coagulation of colloidal dispersions

Mechanisms of Alkyl Sulfonate Adsorption at the Alumina-Water Interface1

Surfactant Adsorption at the Solid—Liquid Interface—Dependence of Mechanism on Chain Length

An improved class of universal collectors for the flotation of oxidized and/or low-rank coal

The zero point of charge of alpha-alumina