scholarly journals Water Adsorption Properties of NOTT-401 and CO2 Capture under Humid Conditions

ACS Omega ◽  
2016 ◽  
Vol 1 (2) ◽  
pp. 305-310 ◽  
Author(s):  
Elí Sánchez-González ◽  
J. Raziel Álvarez ◽  
Ricardo A. Peralta ◽  
Alberto Campos-Reales-Pineda ◽  
Adriana Tejeda-Cruz ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Water Adsorption ◽  
Adsorption Properties

Water adsorption properties of a Sc(iii) porous coordination polymer for CO2 capture applications

2015 ◽  
Vol 2 (12) ◽  
pp. 1080-1084 ◽  
Author(s):  
J. Raziel Álvarez ◽  
Ricardo A. Peralta ◽  
Jorge Balmaseda ◽  
Eduardo González-Zamora ◽  
Ilich A. Ibarra
Keyword(s):  
Relative Humidity ◽  
Coordination Polymer ◽  
Co2 Capture ◽  
Water Adsorption ◽  
Fold Increase ◽  
Adsorption Properties ◽  
Porous Coordination Polymer

Water adsorption was investigated in the hydrostable Sc(iii) coordination polymer NOTT-400. This material performed CO2 capture under relative humidity (RH) conditions (20 and 10% RH). The maximum CO2 capture was obtained at 20% RH and 30 °C with a total amount of ∼10.2 wt%, representing a 2.5-fold increase in comparison with anhydrous conditions.

Hexavalent chromium removal from water: adsorption properties of in natura and magnetic nanomodified sugarcane bagasse

2021 ◽  
Author(s):  
Thais Eduarda Abilio ◽  
Beatriz Caliman Soares ◽  
Julia Cristina José ◽  
Priscila Aparecida Milani ◽  
Geórgia Labuto ◽  
...  
Keyword(s):  
Hexavalent Chromium ◽  
Sugarcane Bagasse ◽  
Water Adsorption ◽  
Adsorption Properties ◽  
Chromium Removal

scholarly journals Oxidized BPL Carbons

1993 ◽  
Vol 10 (1-4) ◽  
pp. 75-84 ◽  
Author(s):  
S.S. Barton ◽  
M.J.B. Evans ◽  
J.A.F. Macdonald
Keyword(s):  
Nitric Acid ◽  
Surface Area ◽  
Water Adsorption ◽  
Adsorption Properties ◽  
Bet Surface Area ◽  
Adsorption Sites ◽  
A Value ◽  
Nitrogen Desorption ◽  
Oxidized Carbon ◽  
Increasing Temperature

A series of oxidized carbons has been prepared by treatment of the carbon with concentrated nitric acid at various temperatures, and the surface and adsorption properties of the prepared carbons studied. Water adsorption was modelled using a recently derived equation capable of predicting a value for the primary adsorption sites on the surface of a microporous carbon while fitting the experimentally determined isotherm at high relative pressures. The concentration of primary sites was seen to increase with increasing temperature of oxidation. The very highly oxidized carbon samples were found to have a significantly lower BET surface area determined from nitrogen desorption at 77 K and higher apparent density measured from mercury displacement.

Surface area, porosity and water adsorption properties of fine volcanic ash particles

2004 ◽  
Vol 67 (2) ◽  
pp. 160-169 ◽  
Author(s):  
Pierre Delmelle ◽  
Fr�d�ric Villi�ras ◽  
Manuel Pelletier
Keyword(s):  
Surface Area ◽  
Volcanic Ash ◽  
Water Adsorption ◽  
Adsorption Properties

When Water becomes an Integral Part of Carbon - Combining Theory and Experiment to Understand the Zeolite-like Water Adsorption Properties of porous C2N Materials

2021 ◽  
Author(s):  
Julian Heske ◽  
Ralf Walczak ◽  
Jan Dirk Epping ◽  
Sol Youk ◽  
Sudhir Kumar Sahoo ◽  
...  
Keyword(s):  
Water Adsorption ◽  
Adsorption Properties ◽  
Water Molecules ◽  
Theory And Experiment

The interaction between water molecules and surfaces in porous systems is of huge importance in various fields including but not limited to catalysis, adsorption, and the storage or conversion of...

scholarly journals Adsorption Characteristics of Lead-, Barium- and Hydrogen-Rich Clinoptilolite Mineral

2003 ◽  
Vol 21 (4) ◽  
pp. 309-317 ◽  
Author(s):  
Fehime Cakicioglu-Ozkan ◽  
Semra Ulku
Keyword(s):  
Water Adsorption ◽  
Adsorption Properties ◽  
Adsorption Mechanisms ◽  
Adsorption Data ◽  
Vapour Adsorption ◽  
Water Vapour Adsorption ◽  
Rich Material ◽  
Static Conditions ◽  
Treatment Water

The carbon dioxide and water vapour adsorption properties of local clinoptilolite-rich material, both as the original and as lead-, barium- and hydrogen-rich forms, were examined. The lead- and barium-rich forms were prepared by treatment of the original clinoptilolite with Pb(NO3)2 and BaCl2 respectively, while the hydrogen-rich form was prepared by NH4Cl and heat treatment. Water and CO2 adsorption experiments were conducted in a volumetric system under static conditions, with low-pressure adsorption data being used for the characterization of the natural, Pb-rich, Ba-rich and H-rich clinoptilolite samples. Although the existence of barium-exchange was not noted, an appreciable decrease in CO2 adsorption was observed with the Pb-rich and H-rich forms due to a decrease in the electrostatic interaction between the surface and the adsorbate. Application of the Dubinin–Astakhov equation to the water adsorption data established the existence of micropores of different sizes that exhibited different adsorption mechanisms.

Molecular Simulation of Adsorbed Water on Mesoporous Silica Thin Films

2013 ◽  
Author(s):  
Kyohei Yamashita ◽  
Hirofumi Daiguji
Keyword(s):  
Thin Films ◽  
Mesoporous Silica ◽  
Water Adsorption ◽  
Pore Radius ◽  
Md Simulations ◽  
Adsorption Properties ◽  
Pore Surface ◽  
Silica Thin Films ◽  
Adsorption Layers ◽  
Kinetics Of

Grand canonical Monte Carlo (GCMC) and canonical ensemble molecular dynamics (NVT-MD) simulations were performed to investigate water adsorption properties in mesoporous silica thin films. The effect of pore radius on the adsorption properties was assessed using two models of mesoporous silica thin films having different pore radius and film thickness (1.38 and 5.66 nm in Model 1, respectively, and 1.81 and 7.30 nm in Model 2, respectively). In the simulations, a water adsorption layer or water menisci were formed in a mesopore accompanying the growth or shrinkage of stable adsorption layers on the upper and lower surfaces. The stable two water adsorption layers were formed on the pore surface in both models. The curvature radius of a water meniscus decreased monotonically and approached a constant value. In addition, NVT-MD simulations were performed to investigate the kinetics of water uptake into a model of mesoporous silica thin film having a radius and thickness of 1.38 and 7.93 nm (Model 3). The calculation results showed that the kinetics of water uptake depended on the number of water molecules and there were two different transport mechanisms in the pore. One was diffusion of water along the pore surface, and the other was capillary rise of liquid water.

Large effect of leaching of DOC on water adsorption properties of a sandy soil

Geoderma ◽  
1996 ◽  
Vol 74 (1-2) ◽  
pp. 125-137 ◽  
Author(s):  
Grzegorz Jòzefaciuk ◽  
Zofia Sokoo̵wska ◽  
Mieczysa̵w Hajnos ◽  
Christian Hoffmann ◽  
Manfred Renger
Keyword(s):  
Sandy Soil ◽  
Water Adsorption ◽  
Adsorption Properties
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