scholarly journals Enhancing the separation efficiency of a C2H2/C2H4 mixture by a chromium metal–organic framework fabricated via post-synthetic metalation

2020 ◽  
Vol 8 (4) ◽  
pp. 2083-2089 ◽  
Author(s):  
Fan Yu ◽  
Bing-Qian Hu ◽  
Xiao-Ning Wang ◽  
Yu-Meng Zhao ◽  
Jia-Luo Li ◽  
...  
Keyword(s):  
Separation Efficiency ◽  
Metal Organic Framework ◽  
Separation Performance ◽  
Metal Organic ◽  
Organic Framework

A new Cr metal–organic framework was fabricated via post-synthetic metalation, which exhibited enhanced separation performance for C2H2/C2H4 compared to its template of the isostructural Fe framework.

A novel interpenetrated anion-pillared porous material with high water tolerance afforded efficient C2H2/C2H4 separation

2019 ◽  
Vol 55 (34) ◽  
pp. 5001-5004 ◽  
Author(s):  
Lifeng Yang ◽  
Anye Jin ◽  
Lisha Ge ◽  
Xili Cui ◽  
Huabin Xing
Keyword(s):  
Porous Material ◽  
Metal Organic Framework ◽  
High Water ◽  
Separation Performance ◽  
Highly Efficient ◽  
Water Tolerance ◽  
Metal Organic ◽  
Organic Framework

A novel water stable interpenetrated anion-pillared metal-organic framework afforded highly efficient C2H2/C2H4 separation performance.

scholarly journals Improved Photodegradation of Anionic Dyes Using a Complex Graphitic Carbon Nitride and Iron-Based Metal-Organic Framework Material

2021 ◽  
Author(s):  
Huan Doan ◽  
Hoa Thi Nguyen ◽  
Valeska Ting ◽  
Shaoliang Guan ◽  
Jean-Charles Eloi ◽  
...  
Keyword(s):  
Environmental Remediation ◽  
Separation Efficiency ◽  
Metal Organic Framework ◽  
Catalytic Performance ◽  
Graphitic Carbon ◽  
Bandgap Energy ◽  
Anionic Dyes ◽  
Efficient Treatment ◽  
Metal Organic ◽  
Organic Framework

<p>Introducing heterostructure to graphitic carbon nitrides (g-C<sub>3</sub>N<sub>4</sub>) can improve the activity of visible-light-driven catalysts for efficient treatment of multiple toxic pollutants in water. Here we report for the first time that a complex material can be constructed from an oxygen-doped g-C<sub>3</sub>N<sub>4</sub> and MIL-53(Fe) metal-organic framework using a facile hydrothermal synthesis and recycled polyethylene terephthalate from plastic waste. The novel multi-walled nanotube structure of the O-g-C<sub>3</sub>N<sub>4</sub>/MIL-53(Fe) composite which enables unique interfacial charge transfer at the heterojunction showed an obvious enhancement in separation efficiency of the photochemical electron-hole pairs. This resulted in narrow bandgap energy (2.30 eV compared to 2.55 eV in O-g-C<sub>3</sub>N<sub>4</sub>), high photocurrent intensity (0.17 mA cm<sup>-2 </sup>compared to 0.12 mA cm<sup>-2</sup> and 0.09 mA cm<sup>-2</sup> in MIL-53(Fe) and O-g-C<sub>3</sub>N<sub>4</sub>, respectively), and excellent catalytic performance in the photodegradation of anionic azo dyes (95% RR 195 and 99% RY 145 degraded after 4 h, and only a minor change in the efficiency observed after four consecutive tests). These results demonstrate the development of new catalysts made from waste feedstocks that show high stability, ease of fabrication and can operate in natural light for environmental remediation.</p>

Amino-Functionalized Water-Stable Metal–Organic Framework for Enhanced C2H2/CH4 Separation Performance

2020 ◽  
Vol 59 (5) ◽  
pp. 2631-2635 ◽  
Author(s):  
Qian Li ◽  
Nana Wu ◽  
Jia Li ◽  
Dapeng Wu ◽  
Yanshuo Li
Keyword(s):  
Metal Organic Framework ◽  
Separation Performance ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Exploiting equilibrium-kinetic synergetic effect for separation of ethylene and ethane in a microporous metal-organic framework

2020 ◽  
Vol 6 (15) ◽  
pp. eaaz4322 ◽  
Author(s):  
Qi Ding ◽  
Zhaoqiang Zhang ◽  
Cong Yu ◽  
Peixin Zhang ◽  
Jun Wang ◽  
...  
Keyword(s):  
Performance Enhancement ◽  
Metal Organic Framework ◽  
Synergetic Effect ◽  
Adsorption Heat ◽  
Separation Performance ◽  
Separation Mechanism ◽  
Physiochemical Properties ◽  
Metal Organic ◽  
Breakthrough Experiments ◽  
Organic Framework

Physisorption is a promising technology to cut cost for separating ethylene (C2H4) from ethane (C2H6), the most energy-intensive separation process in the petrochemical industry. However, traditional thermodynamically selective adsorbents exhibit limited C2H4/C2H6 selectivity due to their similar physiochemical properties, and the performance enhancement is typically at the expense of elevated adsorption heat. Here, we report highly-efficient C2H4/C2H6 adsorption separation in a phosphate-anion pillared metal-organic framework ZnAtzPO4 exploiting the equilibrium-kinetic synergetic effect. The periodically expanded and contracted aperture decorated with electronegative groups within ZnAtzPO4 enables effective trapping of C2H4 and impedes the diffusion of C2H6, offering an extraordinary equilibrium-kinetic combined selectivity of 32.4. The adsorption heat of C2H4 on ZnAtzPO4 (17.3 to 30.0 kJ mol−1) is substantially lower than many thermodynamically selective adsorbents because its separation capability only partially relies on thermodynamics. The separation mechanism was explored by computational simulations, and breakthrough experiments confirmed the excellent C2H4/C2H6 separation performance of ZnAtzPO4.

A highly sensitive flexible metal–organic framework sets a new benchmark for separating propyne from propylene

2018 ◽  
Vol 6 (47) ◽  
pp. 24452-24458 ◽  
Author(s):  
Lifeng Yang ◽  
Xili Cui ◽  
Yuanbin Zhang ◽  
Qiwei Yang ◽  
Huabin Xing
Keyword(s):  
Metal Organic Framework ◽  
Separation Performance ◽  
Threshold Pressure ◽  
Flexible Material ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Flexible Metal ◽  
Organic Framework

A highly sensitive flexible material TIFSIX-14-Cu-i with benchmark C3H4/C3H6 separation performance was designed through control of the threshold pressure.

scholarly journals Pore environment engineering in metal–organic frameworks for efficient ethane/ethylene separation

2019 ◽  
Vol 7 (22) ◽  
pp. 13585-13590 ◽  
Author(s):  
Xun Wang ◽  
Zheng Niu ◽  
Abdullah M. Al-Enizi ◽  
Ayman Nafady ◽  
Yufang Wu ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Methyl Groups ◽  
Separation Performance ◽  
Metal Organic ◽  
Organic Framework

Methyl groups are introduced on the pore walls of a metal–organic framework to enhance the separation performance of C2H6/C2H4.

Specific Oriented Metal–Organic Framework Membranes and Their Facet-Tuned Separation Performance

2014 ◽  
Vol 6 (18) ◽  
pp. 15676-15685 ◽  
Author(s):  
Yiyin Mao ◽  
Binbin Su ◽  
Wei Cao ◽  
Junwei Li ◽  
Yulong Ying ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Separation Performance ◽  
Metal Organic ◽  
Organic Framework

A new Co(ii) metal–organic framework with enhanced CO2 adsorption and separation performance

2016 ◽  
Vol 3 (12) ◽  
pp. 1510-1515 ◽  
Author(s):  
Xiao-Ting Liu ◽  
Yan-Yuan Jia ◽  
Ying-Hui Zhang ◽  
Guo-Jian Ren ◽  
Rui Feng ◽  
...  
Keyword(s):  
Co2 Adsorption ◽  
Metal Organic Framework ◽  
Separation Performance ◽  
Metal Organic ◽  
Organic Framework

A new MOF was synthesized with a functional ligand, which features 1D polar channels and reveals enhanced CO2 adsorption and separation performance.

Synthesis and gas permselectivity of CuBTC–GO–PVDF mixed matrix membranes

2018 ◽  
Vol 42 (14) ◽  
pp. 12013-12023 ◽  
Author(s):  
Elahe Ahmadi Feijani ◽  
Hossein Mahdavi ◽  
Ahmad Tavassoli
Keyword(s):  
Graphene Oxide ◽  
Gas Separation ◽  
Metal Organic Framework ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Metal Organic ◽  
Gas Separation Performance ◽  
Organic Framework ◽  
Matrix Membranes

A CuBTC (copper(ii) benzene-1,3,5-tricarboxylate) metal organic framework (MOF) and graphene oxide (GO) nanosheets were introduced into a semi-crystalline PVDF to produce mixed matrix membranes (MMMs) to promote gas separation performance.

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