منابع مشابه
Isotherm Equation for Water Vapor Adsorption onto Activated Carbon
A simple isotherm model has been developed for the type-5 equilibrium adsorption systems by considering the effects of both primary and secondary adsorptive sites. The model was applied to interpret experimental data describing water vapor adsorption capacities of four activated carbon adsorbents for relative vapor pressures from 0.0 to 0.95 and temperatures between 288 and 308 K. Good agreemen...
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The measured dynamic surface tension of a water drop in air saturated by heptane vapor shows a sharp decrease from about 60 mN m−1 to 40 mN m−1, and less after a certain adsorption time. The observed adsorption kinetics is analyzed by a theoretical model based on multilayer adsorption of alkanes from the vapor phase at the water surface. The model assumes a dependence of the kinetic coefficient...
متن کاملWater Vapor Adsorption on Chemically Treated Activated Carbon Cloths
Water vapor adsorption on activated carbon cloth (ACCBO) which has been oxidized to a level of 32% oxygen exhibits a unique isotherm with uniform hysteresis of small magnitude upon desorption. In contrast the adsorption on untreated ACCBO and chemically modified ACCBO (7.8% Cl), ACCBO (16% Cl), and ACCBO (4% N), exhibits sigmoidal isotherms with hysteresis loops of varying magnitudes. The latte...
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Background and aims: Clean air is one of the most important components of health and sustainable development. Every person breathes about 10 kg of air per day and if it contains pollutants, it will have a serious impact on their health. Indoor air quality (IAQ) is one of the major health issues that have been addressed in recent years with changes in lifestyle patterns. Usually, due to the incr...
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The primary objective of this paper is to enhance the water-vapor-adsorption capacity of multiwall-carbon-nanotube (MWCNT) from nitrogen gas by grafting sulfonic acid groups and doping palladium nanoparticles into the adsorbent. MWCNT has been selected to be modified because of having homogeneous adsorption energy compared to silica gel. As a result, it is capable of creating isotherm having sh...
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ژورنال
عنوان ژورنال: American Journal of Public Health and the Nations Health
سال: 1946
ISSN: 0002-9572
DOI: 10.2105/ajph.36.4.410-a