Highly selective CO2 separation from a CO2/C2H2 mixture using a diamine-appended metal–organic framework

2021 ◽  
Vol 9 (37) ◽  
pp. 21424-21428
Author(s):  
Doo San Choi ◽  
Dae Won Kim ◽  
Dong Won Kang ◽  
Minjung Kang ◽  
Yun Seok Chae ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Metal Organic Framework ◽  
Co2 Separation ◽  
Metal Organic ◽  
Organic Framework

A diamine-appended metal–organic framework displays a top-tier CO2/C2H2 selectivity, a record-high CO2 adsorption capacity, and recyclability.

Benchmark C2H2/CO2 Separation in an Ultramicroporous Metal–Organic Framework via Copper(I)‐Alkynyl Chemistry

2021 ◽  
Author(s):  
Banglin Chen ◽  
Ling Zhang ◽  
Ke Jiang ◽  
Lifeng Yang ◽  
Libo Li ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Co2 Separation ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Experimental and Modeling of Dicamba Adsorption in Aqueous Medium Using MIL-101(Cr) Metal-Organic Framework

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 419
Author(s):  
Hamza Ahmad Isiyaka ◽  
Khairulazhar Jumbri ◽  
Nonni Soraya Sambudi ◽  
Jun Wei Lim ◽  
Bahruddin Saad ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Adsorption Capacity ◽  
Environmental Concern ◽  
Metal Organic Framework ◽  
High Surface ◽  
High Surface Area ◽  
Data Matrix ◽  
Adsorption Parameters ◽  
Metal Organic ◽  
Organic Framework

Drift deposition of emerging and carcinogenic contaminant dicamba (3,6-dichloro-2-methoxy benzoic acid) has become a major health and environmental concern. Effective removal of dicamba in aqueous medium becomes imperative. This study investigates the adsorption of a promising adsorbent, MIL-101(Cr) metal-organic framework (MOF), for the removal of dicamba in aqueous solution. The adsorbent was hydrothermally synthesized and characterized using N2 adsorption-desorption isotherms, Brunauer, Emmett and Teller (BET), powdered X-ray diffraction (XRD), Fourier Transformed Infrared (FTIR) and field emission scanning electron microscopy (FESEM). Adsorption models such as kinetics, isotherms and thermodynamics were studied to understand details of the adsorption process. The significance and optimization of the data matrix, as well as the multivariate interaction of the adsorption parameters, were determined using response surface methodology (RSM). RSM and artificial neural network (ANN) were used to predict the adsorption capacity. In each of the experimental adsorption conditions used, the ANN gave a better prediction with minimal error than the RSM model. The MIL-101(Cr) adsorbent was recycled six times to determine the possibility of reuse. The results show that MIL-101(Cr) is a very promising adsorbent, in particular due to the high surface area (1439 m2 g−1), rapid equilibration (~25 min), high adsorption capacity (237.384 mg g−1) and high removal efficiency of 99.432%.

Collaborative pore partition and pore surface fluorination within a metal-organic framework for high-performance C2H2/CO2 separation

2022 ◽  
pp. 134433
Author(s):  
Xing-Ping Fu ◽  
Yu-Ling Wang ◽  
Xue-Feng Zhang ◽  
Rajamani Krishna ◽  
Chun-Ting He ◽  
...  
Keyword(s):  
High Performance ◽  
Metal Organic Framework ◽  
Co2 Separation ◽  
Pore Surface ◽  
Metal Organic ◽  
Surface Fluorination ◽  
Organic Framework

scholarly journals Synergistic effect of carboxyl and sulfate groups for effective removal of radioactive strontium ion in a Zr-metal-organic framework

2021 ◽  
Author(s):  
Lin Ren ◽  
Xudong Zhao ◽  
Baosheng Liu ◽  
Hongliang Huang
Keyword(s):  
Adsorption Capacity ◽  
High Efficiency ◽  
Metal Organic Framework ◽  
Maximum Adsorption Capacity ◽  
Potential Candidate ◽  
Dual Groups ◽  
Metal Organic ◽  
Strontium Ion ◽  
Rapid Adsorption ◽  
Organic Framework

Abstract Rapid removal of radioactive strontium from nuclear wastewater is of great significance for environment safety and human health. This work reported the effective adsorption of strontium ion in a stable dual-group metal-organic framework, Zr6(OH)14(BDC-(COOH)2)4(SO4)0.75 (Zr-BDC-COOH-SO4), which contains strontium-chelating groups (-COOH and SO4) and strongly ionizable group (-COOH). Zr-BDC-COOH-SO4 exhibits very rapid adsorption kinetics (<5 min) and a maximum adsorption capacity of 67.5 mg g−1. The adsorption behaviors can be well evaluated by pseudo-second-order model and Langmuir isotherm model. Further investigations indicate that the adsorption of Sr2+ in Zr-BDC-COOH-SO4 would not be interfered by solution pH and adsorption temperature obviously. Feasible regeneration of the adsorbent was also demonstrated through a simple elution method. Mechanism investigation suggests that free -COOH contributes to the rapid adsorption based on electrostatic interaction while introduction of -SO4 can enhance the adsorption capacity largely. Thus, these results suggest that Zr-BDC-COOH-SO4 might be a potential candidate for Sr2+ removal and introducing dual groups is an effective strategy for designing high-efficiency adsorbents.

A highly porous agw-type metal–organic framework and its CO2 and H2 adsorption capacity

CrystEngComm ◽  
2013 ◽  
Vol 15 (45) ◽  
pp. 9348 ◽  
Author(s):  
Zhiyong Lu ◽  
Liting Du ◽  
Baishu Zheng ◽  
Junfeng Bai ◽  
Mingxing Zhang ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Metal Organic Framework ◽  
H2 Adsorption ◽  
Metal Organic ◽  
Highly Porous ◽  
Organic Framework

Synthesis and effect of metal–organic frame works on CO2 adsorption capacity at various pressures: A contemplating review

2019 ◽  
Vol 31 (3) ◽  
pp. 367-388 ◽  
Author(s):  
Ayesha Rehman ◽  
Sarah Farrukh ◽  
Arshad Hussain ◽  
Erum Pervaiz
Keyword(s):  
Adsorption Capacity ◽  
Surface Area ◽  
Greenhouse Gas Emission ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Climatic Changes ◽  
Microwave Assisted Synthesis ◽  
Synthesis Methods ◽  
Metal Organic ◽  
Organic Framework

The most important environmental challenge that the world is facing today is the control of the quantity of CO2 in the atmosphere, because it causes global warming. Increase in the global temperature results in greenhouse gas emission, interruption of the volcanic activity, and climatic changes. The alarming rise of the CO2 level impels to take some serious action to control these climatic changes. Various techniques are being utilized to capture CO2. However, chemical absorption and adsorption are supposed to be the most suitable techniques for post-combustion CO2 capture, but the main focus is on adsorption. The aim of this study is to provide a brief overview on the CO2 adsorption by a novel class of adsorbents called the metal–organic framework. The metal–organic framework is a porous material having high surface area with high CO2 adsorption capacity. The metal–organic frameworks possess dynamic structure and have large capacity to adsorb CO2 at either low pressure or high pressure due to its cavity size and surface area. Adsorption of CO2 in the metal–organic framework at various pressures depends upon pore volume and heat of adsorption correspondingly. In this review, different synthesis methods of the metal–organic framework such as slow evaporation, solvo thermal, mechanochemical, electrochemical, sonochemical, and microwave-assisted synthesis are briefly described as the structure of the metal–organic frameworks are mostly dependent upon synthesis techniques. In addition to this, different strategies are discussed to increase the CO2 adsorption capacity in the metal organic-framework. [Formula: see text]

PPI-Dendrimer-Functionalized Magnetic Metal–Organic Framework (Fe3O4@MOF@PPI) with High Adsorption Capacity for Sustainable Wastewater Treatment

2020 ◽  
Vol 12 (22) ◽  
pp. 25294-25303 ◽  
Author(s):  
Hossein Shahriyari Far ◽  
Mahdi Hasanzadeh ◽  
Mohammad Shabani Nashtaei ◽  
Mahboubeh Rabbani ◽  
Aminoddin Haji ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Adsorption Capacity ◽  
Metal Organic Framework ◽  
High Adsorption ◽  
Magnetic Metal ◽  
Metal Organic ◽  
High Adsorption Capacity ◽  
Sustainable Wastewater Treatment ◽  
Organic Framework
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