A significant enhancement of water vapour uptake at low pressure by amine-functionalization of UiO-67

2015 ◽  
Vol 44 (5) ◽  
pp. 2047-2051 ◽  
Author(s):  
Nakeun Ko ◽  
Jisu Hong ◽  
Siyoung Sung ◽  
Kyle E. Cordova ◽  
Hye Jeong Park ◽  
...  
Keyword(s):  
Water Vapour ◽  
Water Uptake ◽  
Metal Organic Framework ◽  
Significant Enhancement ◽  
Relative Pressure ◽  
Amine Functionalization ◽  
Uptake Capacity ◽  
Water Uptake Capacity ◽  
Metal Organic ◽  
Water Vapour Uptake

The functionalization of the metal–organic framework, UiO-67, with –NH2 groups is proven effective for increasing the water uptake capacity at low relative pressure at 298 K.

Tailoring the water adsorption properties of MIL-101 metal–organic frameworks by partial functionalization

2015 ◽  
Vol 3 (5) ◽  
pp. 2057-2064 ◽  
Author(s):  
Nakeun Ko ◽  
Pan Gyu Choi ◽  
Jisu Hong ◽  
Miso Yeo ◽  
Siyoung Sung ◽  
...  
Keyword(s):  
Water Uptake ◽  
Water Adsorption ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Low Pressure ◽  
Adsorption Properties ◽  
Uptake Capacity ◽  
Water Uptake Capacity ◽  
Metal Organic ◽  
Organic Framework

Partial functionalization of the metal–organic framework, MIL-101, with –COOH groups is proven effective for enhancing the water uptake capacity at low pressure.

Solvent-Free Powder Synthesis and MOF-CVD Thin Films of the Mesoporous Metal-Organic Framework MAF-6

2019 ◽  
Author(s):  
Timothée Stassin ◽  
Ivo Stassen ◽  
Joao Marreiros ◽  
Alexander John Cruz ◽  
Rhea Verbeke ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Metal Organic Framework ◽  
Chemical Vapor ◽  
Uptake Capacity ◽  
Powder Synthesis ◽  
Crystalline Films ◽  
Metal Organic ◽  
Mesoporous Metal ◽  
First Time ◽  
Organic Framework

A simple solvent- and catalyst-free method is presented for the synthesis of the mesoporous metal-organic framework (MOF) MAF-6 (RHO-Zn(eIm)2) based on the reaction of ZnO with 2-ethylimidazole vapor at temperatures ≤ 100 °C. By translating this method to a chemical vapor deposition (CVD) protocol, mesoporous crystalline films could be deposited for the first time entirely from the vapor phase. A combination of PALS and Kr physisorption measurements confirmed the porosity of these MOF-CVD films and the size of the MAF-6 supercages (diam. ~2 nm), in close agreement with powder data and calculations. MAF-6 powders and films were further characterized by XRD, TGA, SEM, FTIR, PDF and EXAFS. The exceptional uptake capacity of the mesoporous MAF-6 in comparison to the microporous ZIF-8 is demonstrated by vapor-phase loading of a molecule larger than the ZIF-8 windows.

scholarly journals Strengthening of Porcine Plasma Protein Superabsorbent Materials through a Solubilization-Freeze-Drying Process

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 772
Author(s):  
Estefanía Álvarez-Castillo ◽  
Carlos Bengoechea ◽  
Antonio Guerrero
Keyword(s):  
Water Uptake ◽  
Plasma Protein ◽  
Freeze Drying ◽  
Meat Industry ◽  
Drying Process ◽  
Uptake Capacity ◽  
Water Uptake Capacity ◽  
Protein Flour ◽  
Hydrophilic Materials ◽  
By Products

The replacement of common acrylic derivatives by biodegradable materials in the formulation of superabsorbent materials would lessen the associated environmental impact. Moreover, the use of by-products or biowastes from the food industry that are usually discarded would promote a desired circular economy. The present study deals with the development of superabsorbent materials based on a by-product from the meat industry, namely plasma protein, focusing on the effects of a freeze-drying stage before blending with glycerol and eventual injection molding. More specifically, this freeze-drying stage is carried out either directly on the protein flour or after its solubilization in deionized water (10% w/w). Superabsorbent materials obtained after this solubilization-freeze-drying process display higher Young’s modulus and tensile strength values, without affecting their water uptake capacity. As greater water uptake is commonly related to poorer mechanical properties, the proposed solubilization-freeze-drying process is a useful strategy for producing strengthened hydrophilic materials.

Synthesis and characterization of poly(glycerol sebacate)-based elastomeric copolyesters for tissue engineering applications

2016 ◽  
Vol 7 (14) ◽  
pp. 2553-2564 ◽  
Author(s):  
Yating Jia ◽  
Weizhong Wang ◽  
Xiaojun Zhou ◽  
Wei Nie ◽  
Liang Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tissue Engineering ◽  
Water Uptake ◽  
Synthesis And Characterization ◽  
Uptake Capacity ◽  
Engineering Applications ◽  
Water Uptake Capacity

A poly(glycerol sebacate)-based elastomeric copolyesters with improved mechanical properties and higher water uptake capacity.

A zinc(ii) metal–organic framework with high affinity for CO2 based on triazole and tetrazolyl benzene carboxylic acid

CrystEngComm ◽  
2019 ◽  
Vol 21 (24) ◽  
pp. 3679-3685 ◽  
Author(s):  
Donghai Sheng ◽  
Ying Zhang ◽  
Yang Han ◽  
Guang Xu ◽  
Qingxiang Song ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Metal Organic Framework ◽  
Uptake Capacity ◽  
High Affinity ◽  
Metal Organic ◽  
Organic Framework

A new metal–organic framework {[Zn2(Htzba)2(dmtrz)]·(CH3)2NH}n (1) has already been solvothermally synthesized that exhibits a high CO2 uptake capacity.

A highly porous 4,4-paddlewheel-connected NbO-type metal–organic framework with a large gas-uptake capacity

2013 ◽  
Vol 42 (31) ◽  
pp. 11304 ◽  
Author(s):  
Zhaoxu Wang ◽  
Baishu Zheng ◽  
Heting Liu ◽  
Pinggui Yi ◽  
Xiaofang Li ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Uptake Capacity ◽  
Gas Uptake ◽  
Metal Organic ◽  
Highly Porous ◽  
Organic Framework

A new Co-nitroimidazolate–dicarboxylate pillared-layer network with various types of channels and ultra-large cages for gas uptake

CrystEngComm ◽  
2016 ◽  
Vol 18 (10) ◽  
pp. 1768-1774 ◽  
Author(s):  
Xiao-Qing Guo ◽  
Miao Wang ◽  
Yan-Feng Tang ◽  
Fei Meng ◽  
Guo-Qing Jiang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Uptake Capacity ◽  
Gas Uptake ◽  
Metal Organic ◽  
Organic Framework

A 3-D pillared-layer metal–organic framework constructed from unprecedented Co3-Co2-bdc-based layers and 2-nitroimidazole as pillars exhibits various types of pores and a nanometer-sized cavity along with a high CO2 uptake capacity (73.3 cm3 g−1 at 273 K and 1 atm).

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