نتایج جستجو برای: physisorption effects

تعداد نتایج: 1545062  

Journal: :Processes 2023

Although numerous investigations have revealed the gas physisorption characteristics of porous media, essence behavior within nanoscale space is still indistinct. We speculated that a complex molecular system (e.g., CH4 and CO2) exhibits quantum effect due to confinement nanopores. Gas molecules occur in varied orbitals following certain probabilities and, therefore, separate energy levels insi...

2009
K. S. MUNDHE A. A. BHAVE R. C. TORANE N. R. DESHPANDE R. V. KASHALKAR

In the present study the use of cheap and ecofriendly biosorbents have been studied as an alternative substitution for commercial activated carbon for the removal of methylene blue from waste water. Batch adsorption study was carried out using inflorescence of Celosia argentea L, stem of Cicer arietinum and cob of Zea mays L as a raw agro waste material. This study investigates the potential us...

Journal: :Science and technology of advanced materials 2011
Hiba Baradari Chantal Damia Maggy Dutreih-Colas Eric Champion Dominique Chulia Marylène Viana

Calcium phosphate bone substitute materials can be loaded with active substances for in situ, targeted drug administration. In this study, porous β-TCP pellets were investigated as an anti-inflammatory drug carrier. Porous β-TCP pellets were impregnated with an ethanolic solution of ibuprofen. The effects of contact time and concentration of ibuprofen solution on drug adsorption were studied. T...

Journal: :Physical review letters 2010
Yosuke Kanai Vaikunth R Khalap Philip G Collins Jeffrey C Grossman

Motivated by recent experiments, we investigate how NO3-SWNT interactions become energetically favorable with varying oxidation state of a single-walled carbon nanotube (SWNT) using first-principles calculations. Chemisorption becomes less endothermic with respect to physisorption when the SWNT oxidation state is elevated. Importantly, the dissociative incorporation of an oxygen atom into the S...

Journal: :The Journal of chemical physics 2007
W W Hayes J R Manson

Newly available experimental data for the scattering of argon, neon, and xenon atoms from molten gallium, indium, and bismuth surfaces are compared to calculations with classical scattering theory. The results of the theory are in reasonable agreement with observed energy-resolved spectra taken at fixed angles, with in-plane angular distributions, and with the first available out-of-plane angul...

Journal: :Catalysts 2023

Carbon dioxide (CO2) assisted oxidative dehydrogenation of propane over Ga-modified catalysts is highly sensitive to the identity support, but underlying cause support effects has not been well established. In this article, SSZ-13, SSZ-39, ZSM-5, silica and γ-Al2O3 were used load Ga species by incipient wet impregnation. The structure, textural properties, acidity Ga-based process CO2-assisted ...

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