Mapping the location of grafted PNIPAAM in mesoporous SBA-15 silica using gas adsorption analysis

2012 ◽  
Vol 14 (16) ◽  
pp. 5651 ◽  
Author(s):  
Nina Viola Reichhardt ◽  
Rémy Guillet-Nicolas ◽  
Matthias Thommes ◽  
Beate Klösgen ◽  
Tommy Nylander ◽  
...  
Keyword(s):  
Gas Adsorption ◽  
Adsorption Analysis

Selectively Tuned Pore Condensation and Hysteresis Behavior in Mesoporous SBA-15 Silica: Correlating Material Synthesis to Advanced Gas Adsorption Analysis

2017 ◽  
Vol 121 (44) ◽  
pp. 24505-24526 ◽  
Author(s):  
Rémy Guillet-Nicolas ◽  
François Bérubé ◽  
Matthias Thommes ◽  
Michael T. Janicke ◽  
Freddy Kleitz
Keyword(s):  
Gas Adsorption ◽  
Material Synthesis ◽  
Hysteresis Behavior ◽  
Adsorption Analysis ◽  
Pore Condensation

X-ray Structural Modeling and Gas Adsorption Analysis of Cagelike SBA-16 Silica Mesophases Prepared in a F127/Butanol/H2O System

2006 ◽  
Vol 18 (21) ◽  
pp. 5070-5079 ◽  
Author(s):  
Freddy Kleitz ◽  
Teresa Czuryszkiewicz ◽  
Leonid A. Solovyov ◽  
Mika Lindén
Keyword(s):  
Gas Adsorption ◽  
Structural Modeling ◽  
X Ray ◽  
Adsorption Analysis

scholarly journals Cooperative Adsorption of Carbon Disulfide in Diamine-Appended Metal– Organic Frameworks

2018 ◽  
Author(s):  
C. Michael McGuirk ◽  
Rebecca L. Siegelman ◽  
Walter S. Drisdell ◽  
Tomče Runčevski ◽  
Phillip J. Milner ◽  
...  
Keyword(s):  
Carbon Disulfide ◽  
Gas Adsorption ◽  
Metal Organic Frameworks ◽  
Efficient Manner ◽  
Cooperative Adsorption ◽  
Adsorption Analysis ◽  
Metal Organic ◽  
Insertion Mechanism ◽  
Target Molecules ◽  
Adsorption Desorption

<p>Over one million tons of carbon disulfide are produced globally each year for an array of applications, and emissions of this highly volatile and toxic liquid, known to generate acid rain, remain poorly controlled. As such, materials capable of reversibly capturing this commodity chemical in an energy-efficient manner are of interest. Recently, we detailed a family of diamine-appended metal–organic frameworks capable of selectively capturing carbon dioxide through a cooperative insertion mechanism that promotes efficient adsorption–desorption cycling. We therefore sought to explore the fundamental ability of these materials to capture CS<sub>2 </sub>through a similar mechanism. Employing crystallography, spectroscopy, and gas adsorption analysis, we demonstrate that CS<sub>2</sub> is indeed cooperatively adsorbed in <i>N,N</i>-dimethylethylenediamine-appended M<sub>2</sub>(dobpdc) (M = Mg, Mn, Zn; dobpdc<sup>4− </sup>= 4,4′-dioxidobiphenyl-3,3′-dicarboxylate), via the formation of electrostatically paired ammonium dithiocarbamate chains. Notably, in the weakly thiophilic Mg congener, chemisorption is cleanly reversible with mild thermal input. Importantly, this work demonstrates that the hitherto CO<sub>2</sub>-specific cooperative insertion mechanism can be generalized to other high-impact target molecules.</p>

Fine pore mouth structure of molecular sieve carbon with GCMC-assisted supercritical gas adsorption analysis

Adsorption ◽  
2009 ◽  
Vol 15 (2) ◽  
pp. 114-122 ◽  
Author(s):  
Ryoji Kobori ◽  
Tomonori Ohba ◽  
Takaomi Suzuki ◽  
Taku Iiyama ◽  
Sumio Ozeki ◽  
...  
Keyword(s):  
Molecular Sieve ◽  
Gas Adsorption ◽  
Adsorption Analysis ◽  
Pore Mouth

Volume-specific surface area by gas adsorption analysis with the BET method

2020 ◽  
pp. 265-294 ◽  
Author(s):  
Neil Gibson ◽  
Petra Kuchenbecker ◽  
Kirsten Rasmussen ◽  
Vasile-Dan Hodoroaba ◽  
Hubert Rauscher
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Gas Adsorption ◽  
Adsorption Analysis ◽  
Bet Method

The Electric Field and Ultrasonic Treatment Casing of Titanium Dioxide

2015 ◽  
Vol 670 ◽  
pp. 3-8 ◽  
Author(s):  
Valentina V. Smirnova ◽  
Alexander P. Ilyin ◽  
Anton S. Brichkov ◽  
Anastasiya V. Zabolotskaya
Keyword(s):  
Titanium Dioxide ◽  
Gas Adsorption ◽  
X Ray Diffraction ◽  
Active Centers ◽  
X Ray ◽  
Hydrolysis Method ◽  
Exchange Processes ◽  
Counter Ions ◽  
Adsorption Analysis ◽  
Pass Through

This article deals with the study of direct current (DC), ultrasonic, and of electrolyte of the influence on the change of titanium dioxide sorption properties. The TiO2 prepared by the TiCl4 hydrolysis method. Attention is drawn to charging exchange processes the surface of titanium dioxide particles after they pass through a layer of counter ions in an aqueous medium under the influence of a DC. The stages of the end product’s formation using methods of the X-ray diffraction, the differential thermal and the infrared spectrometric and the gas adsorption analysis were proposed. Dependence of redistribution sorption active centers at the surface of TiO2 was proved.

scholarly journals POROGEN EFFECT TOWARDS THE QUALITY OF CURCUMIN IMPRINTED POLYMER

2011 ◽  
Vol 11 (3) ◽  
pp. 207-211 ◽  
Author(s):  
Emi Shaqiza Azizi ◽  
Mohd Noor Ahmad ◽  
A.K.M. Shafiqul Islam ◽  
Dahyar Arbain ◽  
Iqmal Tahir
Keyword(s):  
Gas Adsorption ◽  
Solid Phase ◽  
Molecular Size ◽  
Bulk Polymerization ◽  
Functional Monomer ◽  
Imprinted Polymer ◽  
Average Pore ◽  
Adsorption Analysis ◽  
Sorbent Materials

Molecularly imprinted polymer (MIP) is gaining importance in separation technology. In this study, curcumin has been selected as template in MIP which can be applied as sorbent materials in solid-phase extraction (SPE). Effect of porogen on the quality of curcumin-MIP is very sensitive depends on the molecular size and polarity of the porogen. We varied three solvents as the porogen i.e. tetrahydrofuran (THF), chloroform (CHCl3) and acetonitrile (MeCN). The MIP was prepared using non-covalent approach through bulk polymerization and non-imprinted polymer (NIP) as control, also prepared using the same procedure in the absence of template. The largest imprinting factor, 1.27 was obtained from polymer P1 at ratio 1:4 of template: functional monomer. The P1 was prepared using methacrylic acid (MAA) as functional monomer and tetrahydrofuran (THF) as porogen with the highest average pore diameter i.e. 618.43 nm trough gas adsorption analysis. This will lead to better access of curcumin during batch binding analysis.

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