Adsorbent morphological characteristics

Interactions of ID polymers with porous solid particles depend on many factors types (chemistry) of a polymer and a solid, textural, and morphological characteristics of solid particles (5, V, PSD, particle size), dispersion medium (solvent can be a strong competitor especially in narrow pores), concentration, temperature, and time of interactions. In this case, the confined space effects can play a much stronger role than in the case of nanooxides composed of nonporous nanoparticles. A polymer shell on adsorbent particles can form a strong barrier (thick cross-linked 3D strictures) or a semipermeable membrane (thin 2D structures at a lower degree of cross-linking). Core-shell... 

Optimum conditions for the formation of CdS by the acidic method on metallic A1 substrate at 25 °C have been reported as follows pH 2.3, potential -1 V vs. SCE, and electrolysis time > 2 h [44]. Thermal treatment improved the characteristics of the films and their photovoltaic properties, which were evaluated by evaporating a CU2S layer on the CdS/Al film, to form a heterojunction cell. The influence of the deposition substrate on the formation and morphology of CdS was found to be important. The aluminum substrates gave the best results among Pt, Mo, and Al. In the case of molybdenum, surface blocking by adsorbed sulfur was considered. 

The 111 face of diamond contains three PBCs, but 100 contains a maximum of two PBCs, even if surface reconstruction takes place. Therefore, the characteristics observed in CVD diamonds cannot be accounted for in terms of surface reconstruction due to the difference in solvents. If the surface energy term can be modified for any other reason, it is possible that the order of morphological importance maybe reversed. A possible reason maybe the surface adsorption of molecules on the surface of a growing CVD diamond. It has been calculated that molecules adsorbed on the surface can drastically modify the surface energy state of diamond. 

We have an excellent activated carbon of fiber morphology, so called activated carbon fiber ACF[3]. This ACF has considerably uniform slit-shaped micropores without mesopores, showing characteristic adsorption properties. The pore size distribution of ACF is very narrow compared with that of traditional granular activated carbon. Then, ACF has an aspect similar to the regular mesoporous silica in particular in carbon science. Consequently, we can understand more an unresolved problem such as adsorption of supercritical gas using ACF as an microporous adsorbent. 

Of critical importance in the development of DPI products is the evaluation, optimization, and control of flow and dispersion (deaggregation) characteristics of the formulation. These typically consist of drug blended with a carrier (e.g., lactose). The properties of these blends are a function of the principal adhesive forces that exist between particles, including van der Waals forces, electrostatic forces, and the surface tension of adsorbed liquid layers [7], These forces are influenced by several fundamental physicochemical properties, including particle density and size distribution, particle morphology (shape, habit, surface texture), and surface composition (including adsorbed moisture) [8]. In addition,... 

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