نتایج جستجو برای: dubinin

تعداد نتایج: 426  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
adams udoji itodo funke wosilat abdulrahman, lawal gusau hassan ugbede itodo happiness

we utilize isotherm models in contributing to scholarly knowledge in simple terms, to measure the forces or energy defining certain adsorption phenomenon. gas chromatography coupled with mass spectrophotometer detector (gcms) was utilized to measure equilibrium phase atrazine after adsorption onto shea nut shells (ss) acid derived activated carbon. data were fitted into the d-r and temkin isoth...

Journal: :Journal of hazardous materials 2011
Cristina Quintelas Hugo Figueiredo Teresa Tavares

The ability of four different clays to adsorb diethylketone was investigated in batch experiments aiming to treat wastewater with low solvent concentrations. The adsorption performance in terms of uptake followed the sequence: vermiculite>sepiolite=kaolinite=bentonite, for all the adsorbent doses tested (from 0.1 to 1.5 g) in 150 mL of ketone solution (800 mg/L). The equilibrium data in the bat...

Journal: :Microporous and Mesoporous Materials 2021

Simple isotherm models can fit microporous adsorption yet the molecular interactions underlying successful fitting have often remained obscure. Here we demonstrate how semi-empirical model data be mined to reveal reality of adsorbate-adsorbate interactions. This was made possible by fluctuation theory, a rigorous theory based only on principles statistical thermodynamics. For carbons, quantifie...

Journal: :Protection of Metals and Physical Chemistry of Surfaces 2021

Abstract— An EC-103 microporous carbon adsorbent was synthesized from wood using thermochemically activation with Н 3 РО 4 as an activating agent. Methane adsorption on the studied within temperature range 303 to 333 K and at pressures up 40 MPa. The total volume of sorbing pores 1.71 cm /g. maximum values methane were obtained pressure differential molar isosteric heat 14.5 mmol/g (23.2 wt %) ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
hossein ghasemi mobtaker hossein kazemian mohammad ali namdar ali malekinejad mohammad reza pakzad

the main goal of this study is to investigate the capability of zeolites a and p synthesized from iranian natural clinoptilolite for uranium uptak. the removal of uranium(vi) from aqueous solution via ion exchange by zeolites in a single component system with various contact times,  temperatures and initial concentrations of uranium(vi) was investigated. the experimental results were fitted to ...

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