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Determination of wax concentration in sunflower seed oil
(Springer, 2000-10)
Isothermal crystallization of waxes was studied by using an optical setup. The induction time of crystallization was assessed as a function of wax concentration. The relationship was found to be a decreasing exponential ...
Development of alginate microparticles as efficient adsorption matrix for protein recovery
(Elsevier, 2019-05)
Alginate microparticles were prepared by spray drying technique and chemically cross-linked with epichlorohydrin. Microparticles were characterized by size, surface morphology (SEM), zeta potential, thermal analysis (TGA/DSC) ...
Generalized statistical description of adsorption of polyatomics
(Elsevier Science, 2005-12)
Multisite-occupancy adsorption is described as a fractional statistic problem, based on Haldane’s statistics. Site exclusion is characterized by a statistical exclusion parameter, g, which relates to the molecular size and ...
Statistical thermodynamics of adsorbates with nonsymmetrical lateral interactions
(The American Physical Society, 2004-03-31)
The exact adsorption thermodynamics of particles with nonsymmetrical ad-ad interactions on a one-dimensional space is presented. The asymmetry is introduced by considering the lateral interactions depending on the orientation ...
Multilayer adsorption with multisite occupancy: An improved isotherm for surface characterization
(American Chemical Society, 2002-02-22)
In this work, an improved solution for multilayer adsorption of linear species is presented. The particular case of multilayer dimer adsorption is dealt with in detail, and a new adsorption isotherm is obtained for ...
Formulation and characterization of nanolaminated starch based film
(Elsevier Science, 2014-12)
Nanolaminated films were formulated by coating a hydrophilic film with a lipid nanolayer. This was performed by coating a starch film with sunflower oil, due to favourable interfacial forces that interact between the oil ...
Chemisorption and sensitivity at semiconductor sensors revisited
(Elsevier Science SA, 2019-04)
In this work we derived the adsorption isotherms for non-dissociative and dissociative chemisorption of oxygen on a semiconductor surface. We extended the Wolkenstein theory for dissociative chemisorption and re-examined ...
Effects of pH and electrolyte concentration on the binding between a humic acid and an oxazine dye
(Pergamon-Elsevier Science Ltd, 2006-04)
The binding between an oxazine dye and a humic acid was studied in aqueous solutions in the pH range 4-10 and in the supporting electrolyte (KCl) range 0.001-0.1 M. A rather simple spectrophotometric method was developed ...
Metal Removal from Wastewater Using Sludge from a Natural Stabilization Pond as Biosorbent
(University of Tehran, 2019-06)
The present work was focused on evaluating the potential use of a sludge produced in a municipal natural facultative pond as biosorbent to remove metal ions (Pb2+, Cd2+, Ni2+, and Cr6+) from aqueous solutions. The influences ...
Mixed ad/desorption kinetics unraveled with the equilibrium adsorption isotherm
(Elsevier Science, 2019-09)
Predicting ad/desorption rates at solid/solution interfaces is important for environmental and industrial processes. For non-porous surfaces the adsorption process can be divided in film diffusion and surface reactions. ...