Absorption characteristics of Mg(2+) and Cl(-) were investigated with 5-day-old excised corn (Zea mays) roots. Uptake from both 0.5 and 10 milliequivalents per liter MgCl(2) solutions occurred at steady state rates for the first 6 hours. Inhibition by dinitrophenol and low temperatures established that absorption during this period was metabolically mediated in the absence and presence of Ca(2+...

In this study, doped vanadium oxide nanotubes were evaluated using different software to study the absorption of hydrogen gas. Vanadium oxide nanotubes are one of the options for absorption and storage hydrogen gas. In this research study for the first time, the Monte Carlo simulation was used to investigate the hydrogen gas absorption behavior in molybdenum-tungsten, molybdenum-zirconium and z...

the main object of this study was to compare the natural and synthetic( naa and nam) zeolites as absorbents in removing emulsified and dissolved traces of organic compounds, which appear in the wastewater of  power plants, refinery and petrochemical complexes.  the specific objectives of the work was: a) to select the best species that have the highest amount of absorption; b) to measure the ra...

Monolayers based on the novel multifunctional compound K29 (the amphiphilic and photosensitive derivative of dithiacrown-ethers) were obtained and investigated. The studied ion-selective and photosensitive properties of K29 in monolayers demonstrated its ability to form complexes with mercury cations which were detected by significant changes in the K29 monolayer isotherms and absorption spectr...

In this article, we used Sargassum hystrix algae as biosorbent for removal of Fe (II) from aqueous solutions that was collected along the Persian Gulf coastline, Bushehr, Iran. The concentration level of remaining Fe (II) in the samples was measured by using flame atomic absorption spectrometry (FAAS, Varian AA240, Australia). The isotherms, kinetics and modeling data of Fe (II) biosorption ont...

introduction: arsenic is known as a carcinogenic compound in drinking water . it can cause acute and chronic effects on human health. in this study, the effect of polyamidoamine dendrimer generation 3(pamam g3) as adsorbents for removal of arsenic (v) from aqueous solutions was evaluated.     methods: adsorption experiment was studied in batch system and the effect of different variables like p...

Raw hemp fibers are alkaline delignified to evaluate the effect of lignin on moisture uptake behavior hemp. Samples subjected absorption/desorption isotherms from 5% 95% relative humidity at three different temperatures (15, 25, and 35°C). The sorption ratio between untreated is lowered by 25%. Hysteresis makes evident greater influence binding low while high humidity, cellulose plays most impo...

background: the presence of heavy metals in the environment especially in water supplies have caused many concerns because of their toxicity and non-degradability. hexavalent chromium (cr) is one of the most toxic metals which is used in many industries, so it is essential to remove it from industrial wastewater. in this study, we made a comparison between different adsorption isotherms in the ...

Complete hydrogen isotherms have been measured using highly stoichiometric, activated LaNi5 over a wide temperature range, 373 K to 228 K. Van’t Hoff plots for hydride formation and decomposition have been constructed using the isotherms in the low temperature range from 228 K to 298 K. The following thermodynamic results have been obtained from these plots: IAHP1., I = 15.4 kJ/ mol ~H2 and lAS...