A Review on Ionic Liquid Gas Separation Membranes

Membranes, Journal Year: 2021, Volume and Issue: 11(2), P. 97 - 97

Published: Jan. 30, 2021

Ionic liquids have attracted the attention of industry and research community as versatile solvents with unique properties, such ionic conductivity, low volatility, high solubility gases vapors, thermal stability, possibility to combine anions cations yield an almost endless list different structures. These features open perspectives for numerous applications, reaction medium chemical synthesis, electrolytes batteries, solvent gas sorption processes, also membranes separation. In search better-performing membrane materials vapor separation, been investigated extensively in last decade a half. This review gives complete overview main developments field liquid since their first introduction. It covers all materials, types, preparation, pure mixed transport examples potential separation applications. Special systems will be discussed, including facilitated matrix membranes. The strengths weaknesses types subdividing them into supported (SILMs), poly(ionic liquids) or polymerized (PILs), polymer/ionic blends (physically chemically cross-linked 'ion-gels'), PIL/IL blends. Since processes are advancing energy-efficient alternative traditional having shown promising results complex new challenges like carbon capture well, they may key developing more sustainable future society. this light, presents state-of-the-art membranes, analyze future.

Language: Английский

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A review on machine learning algorithms for the ionic liquid chemical space

Chemical Science, Journal Year: 2021, Volume and Issue: 12(20), P. 6820 - 6843

Published: Jan. 1, 2021

In this review article, the authors discuss use of machine learning algorithms as tools for prediction physical and chemical properties ionic liquids.

Language: Английский

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Utilization of Cellulose to Its Full Potential: A Review on Cellulose Dissolution, Regeneration, and Applications

Polymers, Journal Year: 2021, Volume and Issue: 13(24), P. 4344 - 4344

Published: Dec. 12, 2021

As the most abundant natural polymer, cellulose is a prime candidate for preparation of both sustainable and economically viable polymeric products hitherto predominantly produced from oil-based synthetic polymers. However, utilization to its full potential constrained by recalcitrance chemical processing. Both fundamental applied aspects dissolution remain active areas research include mechanistic studies on solvent–cellulose interactions, development novel solvents and/or solvent systems, optimization conditions, various cellulose-based materials. In this review, we build existing knowledge dissolution, including structural characteristics polymer that are important (molecular weight, crystallinity, effect hydrophobic interactions), evaluate widely used non-derivatizing (sodium hydroxide (NaOH)-based N,N-dimethylacetamide (DMAc)/lithium chloride (LiCl), N-methylmorpholine-N-oxide (NMMO), ionic liquids). We also cover subsequent regeneration solutions these into architectures (fibers, films, membranes, beads, aerogels, hydrogels) review uses materials in specific applications, such as biomedical, sorption, energy uses.

Language: Английский

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Targeted modifications in ionic liquids – from understanding to design

Physical Chemistry Chemical Physics, Journal Year: 2021, Volume and Issue: 23(12), P. 6993 - 7021

Published: Jan. 1, 2021

The large number of possible ionic liquids makes fully empirical design virtually impossible. In this work, we show how targeted modifications can be and have been used to find the relevant structural features that define properties liquids.

Language: Английский

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Review of advances in the development of laccases for the valorization of lignin to enable the production of lignocellulosic biofuels and bioproducts

Biotechnology Advances, Journal Year: 2021, Volume and Issue: 54, P. 107809 - 107809

Published: July 29, 2021

Development and deployment of commercial biorefineries based on conversion lignocellulosic biomass into biofuels bioproducts faces many challenges that must be addressed before they are commercially viable. One the biggest faced is efficient scalable valorization lignin, one three major components plant cell wall. Lignin most abundant aromatic biopolymer earth, its presence hinders extraction cellulose hemicellulose essential to biochemical lignocellulose fuels chemicals. There has been a significant amount work over past 20 years sought develop innovative processes designed extract recycle lignin valuable compounds help reduce overall costs biorefinery process. Due complex matrix which for survival, development reliable technology difficult achieve. approach received interest relies use enzymes, notably laccases, class multi‑copper green oxidative enzymes catalyze bond breaking in produce smaller oligomers. In this review, we first assess different innovations using laccases within context process, then latest economical advances these offered. Finally, review laccase characterization optimization, as well prospects bottlenecks industrial biorefining sectors.

Language: Английский

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Enabling Sustainable Chemistry with Ionic Liquids and Deep Eutectic Solvents: A Fad or the Future?

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(37)

Published: July 5, 2022

Ionic liquids (ILs) and deep eutectic solvents (DESs) debuted with a promise of superior sustainability footprint due to their low vapor pressure. However, toxicity high cost compromise this footprint, impeding real-world applications. Fortunately, property tunability through rational selection precursors, including bioderived ones, provides strategy ameliorate toxicity, lower cost, endow new functions. This Review discusses whether ILs DESs are sustainable how they contribute chemical processes.

Language: Английский

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Cellulose-based fiber spinning processes using ionic liquids

Cellulose, Journal Year: 2022, Volume and Issue: 29(6), P. 3079 - 3129

Published: March 7, 2022

Abstract Cellulose, a natural, renewable, and environment friendly biopolymer, has been considered as sustainable feedstock in the near future. However, only 0.3% of cellulose is today processed since it not soluble conventional solvents due to strong hydrogen bonding network highly ordered structure. Hence, search effective eco-friendly for dissolution key pillar decades. In recent years, ionic liquids (ILs) have proposed green applied production cellulose-based fibers. This review aims focus attention toward fiber spinning methods based on ILs, well progress using ILs. Moreover, development cellulosic fibers blended with other biopolymers, composites are presented. Finally, different applications summarized discussed.

Language: Английский

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Ionic Liquids and Deep-Eutectic Solvents in Extractive Metallurgy: Mismatch Between Academic Research and Industrial Applicability

Journal of Sustainable Metallurgy, Journal Year: 2023, Volume and Issue: 9(2), P. 423 - 438

Published: April 17, 2023

The past 10–20 years have seen numerous academic papers describing the benefits of ionic liquids (ILs) and deep-eutectic solvents (DESs) for leaching, solvent extraction electrowinning. scientific community—including authors this opinion article—have frequently proclaimed these neoteric as game-changers in extractive metallurgy. Despite this, there been no commercial breakthroughs. In paper we reflect on reasons why ILs DESs seem to failed impact metallurgical industry. These include: (1) issues with high viscosity; (2) limited chemical stability under conditions processes; (3) difficulties recycling reuse; (4) a lack demonstrated unit processes flowsheets pilot scale; (5) insufficient material-property data available engineering purposes; (6) administrative burden obtaining licenses safety permits; (7) very costs large-scale operations; (8) minimal added value compared state-of-the-art hydrometallurgical processes. Our belief is that innovations hydrometallurgy based or are unlikely. Instead, should be aiming deeper understanding at molecular level. This because advances more likely derive from refocused efforts experienced IL/DES researchers investigating speciation thermodynamics solutions, which will then hasten transition linear low-energy-input, circular hydrometallurgy.

Language: Английский

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A Critical Review On Heavy Metals Removal Using Ionic Liquid Membranes From The Industrial Wastewater

Chemical Engineering and Processing - Process Intensification, Journal Year: 2022, Volume and Issue: 173, P. 108812 - 108812

Published: Feb. 4, 2022

Language: Английский

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What is next? the greener future of solid liquid extraction of biobased compounds: Novel techniques and solvents overpower traditional ones

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 320, P. 124147 - 124147

Published: May 21, 2023

Traditional extraction of bioactive compounds from biomass requires large amounts toxic solvents. As the focus on "green" chemistry increases, efforts are being made to replace these solvents with more environmentally benign alternatives as well improve efficiency techniques involved. More sustainable such bio-based solvents, supercritical carbon dioxide, ionic liquids and deep eutectic have been introduced applied in recent processes. This review summarizes use novel compares traditional a techniques, process parameters positive negative aspects Common efficient pressurized solvent (PSE), microwave assisted (MAE), ultrasound (UAE) aqueous two phase (ATPE), compared terms solute compatibility efficiency. The green used processes evaluated according ease synthesis, environmental impact, toxicology, applicability both common

Language: Английский

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