Cation exchange modification of clinoptilolite – Screening analysis for potential equilibrium and kinetic adsorption separations involving methane, nitrogen, and carbon dioxide

2018 ◽  
Vol 262 ◽  
pp. 235-250 ◽  
Author(s):  
D.A. Kennedy ◽  
F.H. Tezel
Keyword(s):  
Carbon Dioxide ◽  
Cation Exchange ◽  
Screening Analysis ◽  
Kinetic Adsorption ◽  
Potential Equilibrium

Carbon Dioxide Capture and Dyes Separation in a Porous Framework with Anionic Sql Net

2014 ◽  
Vol 13 (05n06) ◽  
pp. 1460001
Author(s):  
Yanxi Tan ◽  
Ying Zhang ◽  
Jian Zhang ◽  
Yanjun Zheng
Keyword(s):  
Carbon Dioxide ◽  
Thermal Stability ◽  
Cation Exchange ◽  
Diffraction Pattern ◽  
Carbon Dioxide Capture ◽  
Dye Wastewater ◽  
Thermal Gravimetric ◽  
X Ray Diffraction ◽  
X Ray ◽  
Porous Framework

Presented here is a water-stable MOF material [ In (5- AIPA )2] ⋅ Me 2 NH 2(1; 5-AIPA = 5-Aminoisophthalic acid) built from the connecting of tetrahedral building units [ In ( COO )4]-. The sql net of compound 1 exhibits preferable chemical and thermal stability confirmed by thermal gravimetric analyses (TGA) and powder X-ray diffraction pattern (PXRD) measurements. The activated empty phase of 1a, as a good candidate material for CO 2 capture, shows a CO 2 uptake of 56.6 cm3/g and CH 4/ CO 2 selectivity in excess of 16.4. Remarkably, based on the cation exchange mechanism, 1a has excellent MB affinity and can adsorb MB over MO from water in two hours. The results further support the idea that the ionic MOFs can find more applications in the separation of ionic dyes for the purifying of dye wastewater.

Development of an Electrolytic Cation Exchange Module for the Simultaneous Extraction of Carbon Dioxide and Hydrogen Gas from Natural Seawater

2017 ◽  
Vol 31 (2) ◽  
pp. 1723-1730 ◽  
Author(s):  
Heather D. Willauer ◽  
Felice DiMascio ◽  
Dennis R. Hardy ◽  
Frederick W. Williams
Keyword(s):  
Carbon Dioxide ◽  
Cation Exchange ◽  
Hydrogen Gas ◽  
Natural Seawater ◽  
Simultaneous Extraction
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