scholarly journals Novel Systems and Membrane Technologies for Carbon Capture

2021 ◽  
Vol 2021 ◽  
pp. 1-23
Author(s):  
Eshorame Samuel Sanni ◽  
Emmanuel Rotimi Sadiku ◽  
Emeka Emmanuel Okoro
Keyword(s):  
Carbon Capture ◽  
Synergistic Effects ◽  
Common Knowledge ◽  
Metal Organic Frameworks ◽  
Industrial Processes ◽  
Future Prospects ◽  
Solid Adsorbents ◽  
Metal Organic ◽  
Synthetic Routes ◽  
The Individual

Due to the global menace caused by carbon emissions from environmental, anthropogenic, and industrial processes, it has become expedient to consider the use of systems, with high trapping potentials for these carbon-based compounds. Several prior studies have considered the use of amines, activated carbon, and other solid adsorbents. Advances in carbon capture research have led to the use of ionic liquids, enzyme-based systems, microbial filters, membranes, and metal-organic frameworks in capturing CO2. Therefore, it is common knowledge that some of these systems have their lapses, which then informs the need to prioritize and optimize their synthetic routes for optimum efficiency. Some authors have also argued about the need to consider the use of hybrid systems, which offer several characteristics that in turn give synergistic effects/properties that are better compared to those of the individual components that make up the composites. For instance, some membranes are hydrophobic in nature, which makes them unsuitable for carbon capture operations; hence, it is necessary to consider modifying properties such as thermal stability, chemical stability, permeability, nature of the raw/starting material, thickness, durability, and surface area which can enhance the performance of these systems. In this review, previous and recent advances in carbon capture systems and sequestration technologies are discussed, while some recommendations and future prospects in innovative technologies are also highlighted.

scholarly journals Controlled Synthesis of Metal–Organic Frameworks in Scalable Open-Porous Contactor for Maximizing Carbon Capture Efficiency

JACS Au ◽  
2021 ◽  
Author(s):  
Young Hun Lee ◽  
YongSung Kwon ◽  
Chaehoon Kim ◽  
Young-Eun Hwang ◽  
Minkee Choi ◽  
...  
Keyword(s):  
Carbon Capture ◽  
Metal Organic Frameworks ◽  
Capture Efficiency ◽  
Controlled Synthesis ◽  
Metal Organic

Vapor-assisted self-conversion of basic carbonates in metal–organic frameworks

Nanoscale ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 5069-5076
Author(s):  
Miaomiao Jia ◽  
Jingyi Su ◽  
Pengcheng Su ◽  
Wanbin Li
Keyword(s):  
Carbon Capture ◽  
Metal Organic Frameworks ◽  
Solvent Vapor ◽  
Metal Centers ◽  
Metal Organic ◽  
High Alkalinity

Basic carbonates with high alkalinity are incorporated into metal–organic frameworks by solvent vapor-assisted self-conversion of partial metal centers to improve carbon capture performance.

Recent advances in nanomaterial-based luminescent ATP sensors

2021 ◽  
Vol 17 ◽  
Author(s):  
Xiaomeng Zhou ◽  
Li Shang
Keyword(s):  
Carbon Nanomaterials ◽  
Metal Organic Frameworks ◽  
High Sensitivity ◽  
Live Cells ◽  
Biological Processes ◽  
Future Prospects ◽  
Advantages And Disadvantages ◽  
Sensitivity And Selectivity ◽  
Metal Organic ◽  
Atp Sensing

: Adenosine 5'-triphosphate (ATP) plays a significant role in biological processes and the ATP level is closely associated with many diseases. In order to detect ATP in live cells, tissues and body fluids with a high sensitivity and selectivity, researchers have developed various sensing strategies. Particularly, owing to distinct physicochemical properties of nanomaterials and high sensitivity of fluorescence, a great deal of efforts have been devoted to developing nanomaterials-based approaches for fluorescent ATP sensing in recent years. In this review, we focus on the current development of nanomaterial-based fluorescent ATP sensors and discuss the sensing mechanisms in detail. The advantages and disadvantages of ATP sensing using different kinds of nanomaterials, including carbon nanomaterials, metal nanoparticles, semiconductor quantum dots, metal-organic frameworks and up-conversion nanoparticles have been thoroughly compared and discussed. Finally, current challenges and future prospects in this field are given.

Investigating Density Functional Theory’s Effectiveness in Studying Metal-Organic Frameworks Structures

2019 ◽  
Author(s):  
Kendric Roberts ◽  
Yen-Lin Han
Keyword(s):  
Bond Length ◽  
Carbon Capture ◽  
Density Functional ◽  
Metal Organic Frameworks ◽  
Hydrocarbon Fuel ◽  
Limiting Factor ◽  
Cell Parameters ◽  
Metal Organic ◽  
Computational Resources ◽  
Work Done

Abstract In combatting human induced climate change, carbon capture provides the potential to more slowly ease away from the dependence on hydrocarbon fuel sources, while mitigating the amount of CO2 released into the atmosphere. One promising material to use is metal-organic frameworks (MOF’s). MOF’s offer an immense variety in potential exceptionally porous structures, a property important in separation. As a result of practical experimental measurements being expensive and time consuming, interest in accomplishing the same goal through modeling has also increased. Using density functional theory to optimize the approximate experimentally measured atomic geometries has been shown to have sufficient accuracy. A previous study by Nazarian et al. was performed to optimize structures on the CoRE MOF Database using a supercomputer. The purpose of this study was to attempt to replicate their work done with a single MOF using computational resources more commonly available. Furthermore, as time tends to be the limiting factor in conducting these studies, the use of a smearing function was adjusted for two optimizations to see if any considerable improvement on the efficiency of the optimizations could be made. Our results show both optimizations improved the bond length accuracy relative to the raw data compared with the optimization from Nazarian, et al. The optimization with a more present smearing effect was able to converge the electron field in roughly half the time, while still showing nearly the same results, except for slightly more variability in the bond lengths involving transition metals. Unfortunately, the improvement in bond length, did not correspond in consistent improvement of the larger cell defining metrics. This shows that either a different energy minimum was found or the relationship between the larger cell parameters, with the more local parameters such as bond length is too complex for the method to effectively solve.

scholarly journals Recent advances in carbon capture storage and utilisation technologies: a review

2020 ◽  
Author(s):  
Ahmed I. Osman ◽  
Mahmoud Hefny ◽  
M. I. A. Abdel Maksoud ◽  
Ahmed M. Elgarahy ◽  
David W. Rooney
Keyword(s):  
Adsorption Capacity ◽  
Oil Recovery ◽  
Carbon Capture ◽  
Food Packaging ◽  
Metal Organic Frameworks ◽  
Carbon Dioxide Separation ◽  
Recent Advances ◽  
Metal Organic ◽  
Industrial Level ◽  
Carbon Capture Storage

AbstractHuman activities have led to a massive increase in $$\hbox {CO}_{2}$$ CO 2 emissions as a primary greenhouse gas that is contributing to climate change with higher than $$1\,^{\circ }\hbox {C}$$ 1 ∘ C global warming than that of the pre-industrial level. We evaluate the three major technologies that are utilised for carbon capture: pre-combustion, post-combustion and oxyfuel combustion. We review the advances in carbon capture, storage and utilisation. We compare carbon uptake technologies with techniques of carbon dioxide separation. Monoethanolamine is the most common carbon sorbent; yet it requires a high regeneration energy of 3.5 GJ per tonne of $$\hbox {CO}_{2}$$ CO 2 . Alternatively, recent advances in sorbent technology reveal novel solvents such as a modulated amine blend with lower regeneration energy of 2.17 GJ per tonne of $$\hbox {CO}_{2}$$ CO 2 . Graphene-type materials show $$\hbox {CO}_{2}$$ CO 2 adsorption capacity of 0.07 mol/g, which is 10 times higher than that of specific types of activated carbon, zeolites and metal–organic frameworks. $$\hbox {CO}_{2}$$ CO 2 geosequestration provides an efficient and long-term strategy for storing the captured $$\hbox {CO}_{2}$$ CO 2 in geological formations with a global storage capacity factor at a Gt-scale within operational timescales. Regarding the utilisation route, currently, the gross global utilisation of $$\hbox {CO}_{2}$$ CO 2 is lower than 200 million tonnes per year, which is roughly negligible compared with the extent of global anthropogenic $$\hbox {CO}_{2}$$ CO 2 emissions, which is higher than 32,000 million tonnes per year. Herein, we review different $$\hbox {CO}_{2}$$ CO 2 utilisation methods such as direct routes, i.e. beverage carbonation, food packaging and oil recovery, chemical industries and fuels. Moreover, we investigated additional $$\hbox {CO}_{2}$$ CO 2 utilisation for base-load power generation, seasonal energy storage, and district cooling and cryogenic direct air $$\hbox {CO}_{2}$$ CO 2 capture using geothermal energy. Through bibliometric mapping, we identified the research gap in the literature within this field which requires future investigations, for instance, designing new and stable ionic liquids, pore size and selectivity of metal–organic frameworks and enhancing the adsorption capacity of novel solvents. Moreover, areas such as techno-economic evaluation of novel solvents, process design and dynamic simulation require further effort as well as research and development before pilot- and commercial-scale trials.

scholarly journals Rapid mechanochemical encapsulation of biocatalysts into robust metal–organic frameworks

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Tz-Han Wei ◽  
Shi-Hong Wu ◽  
Yi-Da Huang ◽  
Wei-Shang Lo ◽  
Benjamin P. Williams ◽  
...  
Keyword(s):  
Biological Activity ◽  
Solid State ◽  
Ball Milling ◽  
Metal Organic Frameworks ◽  
Solid Substrate ◽  
Milling Process ◽  
Industrial Processes ◽  
Metal Organic ◽  
Acidic Conditions ◽  
Strong Acids

Abstract Metal–organic frameworks (MOFs) have recently garnered consideration as an attractive solid substrate because the highly tunable MOF framework can not only serve as an inert host but also enhance the selectivity, stability, and/or activity of the enzymes. Herein, we demonstrate the advantages of using a mechanochemical strategy to encapsulate enzymes into robust MOFs. A range of enzymes, namely β-glucosidase, invertase, β-galactosidase, and catalase, are encapsulated in ZIF-8, UiO-66-NH2, or Zn-MOF-74 via a ball milling process. The solid-state mechanochemical strategy is rapid and minimizes the use of organic solvents and strong acids during synthesis, allowing the encapsulation of enzymes into three prototypical robust MOFs while maintaining enzymatic biological activity. The activity of encapsulated enzyme is demonstrated and shows increased resistance to proteases, even under acidic conditions. This work represents a step toward the creation of a suite of biomolecule-in-MOF composites for application in a variety of industrial processes.

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