Author
Loren G. Hepler
Other affiliations: Carnegie Mellon University
Bio: Loren G. Hepler is an academic researcher from University of Alberta. The author has contributed to research in topics: Aqueous solution & Equilibrium constant. The author has an hindex of 35, co-authored 120 publications receiving 3972 citations. Previous affiliations of Loren G. Hepler include Carnegie Mellon University.
Papers published on a yearly basis
Papers
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TL;DR: The thermodynamic equation (∂CP/∂P)T = T(∂2V/ ∂T2)P is used as a basis for relating thermal expansion to structure (at several temperatures and pressures) of water and normal liquids.
Abstract: The thermodynamic equation (∂CP/∂P)T = −T(∂2V/∂T2)P is used as a basis for relating thermal expansion to structure (at several temperatures and pressures) of water and "normal" liquids. Similar con...
742 citations
TL;DR: In this article, the atomic absorption measurements of zinc hydroxide have been used for evaluation of the solubility at 12.5, 25.0, 50.0 and 75.0 °C from pH 6.7 to pH 13.8.
Abstract: We have made atomic absorption measurements leading to the solubility of zinc hydroxide at 12.5, 25.0, 50.0, and 75.0 °C from pH = 6.7 to pH = 13.8. Results have been used for evaluation of the sol...
199 citations
TL;DR: This article measured densities of binary mixtures of water with monoethanolamine (MEA), diethanolamine (DEA), and triethanolamines (TEA) over the full range of compositions and over the temperature range from 25 to 80°C.
Abstract: We have measured densities of binary mixtures of water with monoethanolamine (MEA), diethanolamine (DEA), and triethanolamine (TEA) over the full range of compositions and over the temperature range from 25 to 80°C. Results of these measurements have been used in calculating excess molar volumes and partial molar volumes. Knowledge of the volumetric properties of these mixtures is useful in connection with industrial treatment of acidic gases; derived excess molar volumes and partial molar volumes can be used as a basis for understanding some of the molecular interactions in water-organic mixtures.
154 citations
142 citations
124 citations
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TL;DR: In this paper, photo-induced superhydrophilicity was used on the surface of a wide-band gap semiconductor like titanium dioxide (TiO 2 ) for photocatalytic activity towards environmentally hazardous compounds.
4,241 citations
TL;DR: This method provides a facile and straightforward approach to deposit MnO(2) nanoparticles onto the graphene oxide sheets (single layer of graphite oxide) and may be readily extended to the preparation of other classes of hybrids based on GO sheets for technological applications.
Abstract: A composite of graphene oxide supported by needle-like MnO2 nanocrystals (GO−MnO2 nanocomposites) has been fabricated through a simple soft chemical route in a water−isopropyl alcohol system. The formation mechanism of these intriguing nanocomposites investigated by transmission electron microscopy and Raman and ultraviolet−visible absorption spectroscopy is proposed as intercalation and adsorption of manganese ions onto the GO sheets, followed by the nucleation and growth of the crystal species in a double solvent system via dissolution−crystallization and oriented attachment mechanisms, which in turn results in the exfoliation of GO sheets. Interestingly, it was found that the electrochemical performance of as-prepared nanocomposites could be enhanced by the chemical interaction between GO and MnO2. This method provides a facile and straightforward approach to deposit MnO2 nanoparticles onto the graphene oxide sheets (single layer of graphite oxide) and may be readily extended to the preparation of othe...
1,953 citations
TL;DR: According to Henry's law, the equilibrium ratio between the abundances in the gas phase and in the aqueous phase is constant for a dilute solution as discussed by the authors, and a compilation of 17 350 values of Henry's Law constants for 4632 species, collected from 689 references is available at http://wwwhenrys-law.org
Abstract: Many atmospheric chemicals occur in the gas phase as well as in liquid cloud droplets and aerosol particles Therefore, it is necessary to understand the distribution between the phases According to Henry's law, the equilibrium ratio between the abundances in the gas phase and in the aqueous phase is constant for a dilute solution Henry's law constants of trace gases of potential importance in environmental chemistry have been collected and converted into a uniform format The compilation contains 17 350 values of Henry's law constants for 4632 species, collected from 689 references It is also available at http://wwwhenrys-laworg
1,935 citations
Book•
01 Jan 1971
TL;DR: In this paper, Ozaki et al. describe the dynamics of adsorption and Oxidation of organic Molecules on Illuminated Titanium Dioxide Particles Immersed in Water.
Abstract: 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.
1,870 citations
TL;DR: It is demonstrated that bulk water structure is not central to the Hofmeister effect, and models are being developed that depend upon direct ion-macromolecule interactions as well as interactions with water molecules in the first hydration shell of the macromolecules.
1,786 citations