Article
Chemistry, Physical
Illia V. Kapitanov, Grete Raba, Marcel Spulak, Raivo Vilu, Yevgen Karpichev, Nicholas Gathergood
Summary: A series of dipeptide ionic liquids (ILs) containing L-phenylalanine and L-alanine fragments were synthesized and their possible degradation pathways were analyzed. The compounds were screened for microbial toxicity and aerobic biodegradation, and the results showed that L-phenylalanine derivatives had higher biodegradability compared to L-alanine derivatives.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Dimitrios Skarpalezos, Andromachi Tzani, Elpida Avraam, Christos Politidis, Apostolos Kyritsis, Anastasia Detsi
Summary: This study presents the design, synthesis, and biodegradability assessment of 14 protic ionic liquids (PILs), with nine of them being newly introduced in the bibliography. The physicochemical properties, thermal behavior, and viscosity of two important PILs were studied, along with the discussion on how the structural features of PILs ions impact these properties.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Muhammad Ishaq Khan, Muhammad Mubashir, Dzulkarnain Zaini, Mater H. Mahnashi, Bandar A. Alyami, Ali O. Alqarni, Pau Loke Show
Summary: This research work developed a comprehensive tool for assessing the cumulative ecotoxicological impact of ionic liquids (ILs) on aquatic life. The study evaluated the impact of different ILs on various aquatic species and determined the acceptable concentrations and risk values. Results indicated that certain imidazolium ILs had lower risk values and were more suitable for selected aquatic species.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Marika Turek, Robert Biczak, Barbara Pawlowska, Ewa Rozycka-Sokolowska, Krzysztof Owsianik, Bernard Marciniak, Piotr Balczewski
Summary: The use of optically active forms of commercial chiral herbicides may be more effective and environmentally safer. This study synthesized a series of chiral quaternary ammonium salts and investigated their selective toxicity towards aquatic bacteria and terrestrial plants. The results showed that these salts exhibited enantioselective toxicity towards all tested organisms.
Article
Green & Sustainable Science & Technology
Sergio S. de Jesus, Rubens Maciel Filho
Summary: Ionic liquids are molten salts with excellent chemical and thermal stability, which have the potential to replace traditional organic solvents. However, their synthesis, toxicity, and biodegradability pose challenges to their environmentally friendly use. Analyzing the processes of synthesis, recovery and recycling, toxicity, and biodegradability reveals the need for further improvements in ionic liquid design to meet the principles of green chemistry.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Biochemistry & Molecular Biology
Illia V. V. Kapitanov, Surya M. M. Sudheer, Toshikee Yadav, Kallol K. K. Ghosh, Nicholas Gathergood, Vijai K. K. Gupta, Yevgen Karpichev
Summary: The solubilization capacity of sustainable phenylalanine-derived surface-active ionic liquids (SAILs) towards polycyclic aromatic hydrocarbons (PAHs) was evaluated and compared with a conventional cationic surfactant, CTABr. The SAILs showed increased solubilization capacity with longer alkyl chain length, comparable to CTABr for certain SAIL types. The phenylalanine-derived SAILs also had the advantage of enzymatically cleaving ester and amide bonds under mild conditions for in situ separation of PAHs.
Article
Chemistry, Physical
J. L. Viesca, P. Oulego, R. Gonzalez, H. Guo, A. Hernandez Battez, P. Iglesias
Summary: The study found that the six types of protic ionic liquids have certain biodegradability and toxicity, but their environmental properties are significantly better than industrial lubricant additives. Five of the PILs showed no corrosive activity on steel, with only one exhibiting partial miscibility in ester-based oil.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Mateusz Marchel, Hubert Cieslinski, Grzegorz Boczkaj
Summary: The stability, reusability, and biocompatibility of deep eutectic solvents (DESs) play an important role in their applications. The study investigated the long-term stability of three choline chloride (ChCl)-based DESs formed using glucose, malonic acid, and urea as hydrogen bond donors. It was found that ChCl:urea DES showed high thermal stability and low toxicity to bacteria, making it a green solvent. However, ChCl:glucose DES decomposed at elevated temperatures and ChCl:malonic DES showed thermal instability and high toxicity compared to other DESs.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Review
Polymer Science
Sebastien Livi, Jerome Baudoux, Jean-Francois Gerard, Jannick Duchet-Rumeau
Summary: Epoxy networks, known for their exceptional properties, are widely used in various industries. Recent innovations in the field involve the use of ionic liquids as initiators or building blocks for epoxy prepolymer, resulting in a new generation of epoxy thermosets with improved physical properties. Polymer/ionic liquid synergy leads to the development of multifunctional thermosetting materials.
PROGRESS IN POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zhiwen Zheng, Xiaolong Liu, Hongxiang Yu, Dapeng Feng, Dan Qiao
Summary: Using natural products as raw materials, this study successfully synthesized two natural cholesterol-derived ionic liquids (ILs) and investigated their tribological and biodegradable properties. The results showed that both ILs exhibited excellent antiwear properties and promoted the biodegradation of base oils.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Environmental Sciences
A. Sudharshan Reddy, Vikram P. Wanjari, Swatantra P. Singh
Summary: Forward osmosis (FO) is a promising desalination technology, but it requires an additional step for water recovery or draw solute (DS) regeneration, making it energy intensive. Incorporating inexpensive energy sources for DS regeneration is a viable solution to compete with reverse osmosis desalination technology. This review explores thermally responsive DSs (TRDS) for FO-based desalination, discussing their design, synthesis, applications, and potential low-grade energy sources for recovery.
Article
Engineering, Environmental
D. Hospital-Benito, C. Moya, M. Gazzani, J. Palomar
Summary: This study explores the use of ionic liquids for direct air capture and provides guidelines for their future development. By designing and assessing 26 different ionic liquids, it identifies the most promising one for the direct air capture process. Through process simulations and economic analysis, it finds that the direct air capture system based on [P-66614][Im] exhibits high efficiency and has the potential to operate at a reasonable cost.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Dinesh K. Patel, Ke Zhong, Haiqing Xu, Mohammad F. Islam, Lining Yao
Summary: Morphing matter, which can change shapes and properties in response to external stimuli, has attracted significant interest in various fields. However, the environmental impact of morphing matter should also be considered. This study reflects and summarizes the practice of sustainability in the manufacturing, usage, and end-of-life handling of morphing matter. The concept of sustainable morphing matter (SMM) is introduced, suggesting that sustainability-conscious factors should be integrated into the design process.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Engineering, Environmental
Benoit Villemejeanne, Sophie Legeai, Eric Meux, Sandrine Dourdain, Hakima Mendil-Jakani, Emmanuel Billy
Summary: The one-step electroleaching-electrochemical deposition process using ionic liquid mixtures is a promising alternative for palladium and gold recovery, with chloride-based mixtures proving to be the most suitable electrolyte. The use of low viscous electrolytes allows for metal leaching at low anodic potential, leading to a more sustainable process compared to conventional processes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Amandha Kaiser da Silva, Luan F. Diniz, Juan C. Tenorio, Carlos E. D. Nazario, Caue Ribeiro, Paulo S. Carvalho Jr
Summary: Highly soluble multicomponent crystals of Atrazine and Ametryn were fabricated with the aim of providing safer and more eco-friendly formulations. These new crystals were significantly more soluble than their corresponding pure forms, potentially contributing to enhanced sustainability in crop production.
Article
Environmental Sciences
Anna Bialk-Bielinska, Lukasz Grabarczyk, Ewa Mulkiewicz, Alan Puckowski, Stefan Stolte, Piotr Stepnowski
Summary: The study evaluated the toxicity of mixtures of pharmaceuticals towards three selected organisms and found that the concentration addition model generally provided lower predictions compared to the independent action model. It was concluded that the concentration addition model should be recommended for modeling mixture toxicity of pharmaceuticals with different modes of action.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Engineering, Environmental
Lale Carstensen, Stephan Beil, Hilmar Boernick, Stefan Stolte
Summary: Benzophenone-type UV filters (BPs) are a diverse group of chemicals used in various industries worldwide. They can be found in different environmental compartments and have endocrine disrupting effects. Biodegradation and photolytic decomposition are the major elimination processes for BPs, with the formation of hydroxylated BPs during biodegradation showing increased endocrine activity.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Engineering, Environmental
Ya-Qi Zhang, Marianna Lykaki, Marta Markiewicz, Mohammad Taher Alrajoula, Caroline Kraas, Stefan Stolte
Summary: This review provides an overview of the environmental impact of fibrous microplastics (FMPs), including their concentrations, emission, transport, fate, and toxicity effects. The properties of FMPs and the uncertainties surrounding current assessment methods are discussed, highlighting the need for improved determination of exposure levels and better characterization of their effects. Topics for future studies to address the limited understanding of the interactions between FMPs and the environment are also presented.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Stephan Eberle, Hilmar Boernick, Stefan Stolte
Summary: This study investigated the suitability of granular natural zeolites as adsorbents for ammonium in drinking water treatment, and the influence of key parameters was examined. The results showed that granular natural zeolites can be a promising cost-effective adsorbent for ammonium, especially in threshold and developing countries.
Article
Biochemical Research Methods
Jasper Giesler, Laura Weirauch, Jorg Thoming, Michael Baune, Georg R. Pesch
Summary: The ongoing task of separating particles based on their intrinsic properties is crucial in fields such as biotechnology and electronic waste recycling. Dielectrophoresis (DEP) is a promising technique for addressing multiple particle properties and improving throughput in electrode-based separators. By utilizing inexpensive custom-designed printed circuit boards, the separator demonstrated efficient particle separation and selective trapping capabilities.
Article
Multidisciplinary Sciences
Timo Wassermann, Henry Muehlenbrock, Philipp Kenkel, Jorg Thoeming, Edwin Zondervan
Summary: This study introduces a new methodology for modeling electricity-based hydrogen supply systems, emphasizing the linear formulations of electrolysis and salt cavern storage models, as well as the crucial individual consideration of power supply and hydrogen demand for optimal system design and operation.
PHYSICAL SCIENCES REVIEWS
(2022)
Article
Engineering, Multidisciplinary
Kevin Kuhlmann, Christoph Sinn, Judith Marie Undine Siebert, Gregor Wehinger, Jorg Thoming, Georg R. Pesch
Summary: In this study, an open-source based workflow for generating volume meshes from CT data is presented. The resulting meshes are evaluated to assess the quality and importance of the workflow, and potential pitfalls and shortcomings are demonstrated to be avoided.
ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
(2022)
Article
Engineering, Chemical
Laura Weirauch, Jasper Giesler, Michael Baune, Georg R. Pesch, Jorg Thoeming
Summary: Dielectrophoresis (DEP) is a promising separation technique with high selectivity and versatility, but faces technical challenges in commercial applications. This study presents a novel mesh-based DEP filter method using low-cost and commercially available materials for upscaling and achieving high-throughput multitarget separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Emad Aamer, Jorg Thoeming, Michael Baune, Nicholas Reimer, Ralf Dringen, Manuela Romero, Ingmar Boesing
Summary: This paper systematically studies the influence of system parameters such as pH, electrode potential, and educt concentration on NADH regeneration and presents their mechanisms. The experimental results show that all three system parameters have significant effects on the reaction outcome.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Environmental
Goksu Celik, Stephan Beil, Stefan Stolte, Marta Markiewicz
Summary: Heterocyclic polyaromatic hydrocarbons (heterocyclic PAHs) are a common presence in the environment, but they have received less attention and comprehensive assessment than homocyclic PAHs in terms of their environmental behavior. Moreover, the available physicochemical data for heterocyclic PAHs are limited. To address this, the physicochemical properties of heterocyclic PAHs were experimentally determined, and structure-property relationships were established. The data obtained allowed for the evaluation of predictive models and a screening-level comparative hazard assessment of both heterocyclic and homocyclic PAHs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Tonya Graef, Katharina Gummi, Juliane Filser, Jorg Thoeming, Jan Koeser
Summary: Membrane filtration, using ultrafiltration membranes like PES, is commonly employed to separate dissolved metal ions from dispersed particles. However, the retention of ions due to Coulomb interactions with the membrane's sulfonic acid groups is a disadvantage. This study found that pretreating the PES membrane with certain cations can improve the recovery of copper ions, with Ca2+ being the most effective pretreatment agent at a concentration of 0.1 mol L-1.
Article
Biochemistry & Molecular Biology
Stephan Eberle, Viktor Schmalz, Hilmar Boernick, Stefan Stolte
Summary: The excessive use of ammonium fertilizer and leakage poses a threat to aquatic environments worldwide. This study focused on evaluating and modeling breakthrough curves for NH4+ in zeolite-filled, fixed-bed columns for drinking water treatment. The Freundlich sorption model successfully described the NH4+ sorption, while unfavorable sorption was observed for K+. Intraparticle diffusion was identified as the rate limiting step for NH4+ and K+ breakthrough. The use of tap, river, and groundwater matrices decreased the treated bed volumes compared to ultrapure water, with K+ and dissolved organic carbon (DOC) concentrations being the main parameters affecting NH4+ sorption.
Article
Engineering, Environmental
Lale Carstensen, Rene Zippel, Ron Fiskal, Hilmar Boernick, Viktor Schmalz, Sara Schubert, Mario Schaffer, Dirk Jungmann, Stefan Stolte
Summary: Fast and accurate analytical methods are crucial for risk assessments of benzophenone-type UV filters (BPs) to determine and monitor their levels in the environment. This study presents an LC-MS/MS method that can identify 10 different BPs in environmental samples with minimal sample preparation and a LOQ range from 2 to 1060 ng/L. The study also reveals the abundance of BP-4 in surface waters and highlights the formation of an estrogenic transformation product, 4-OH-BP, during biodegradation of benzophenone.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jasper Giesler, Laura Weirauch, Alica Rother, Jorg Thoming, Georg R. Pesch, Michael Baune
Summary: Lithium-ion batteries (LIBs) are widely used and their demand for raw materials is increasing. The recycling of spent LIBs is crucial to achieve a circular economy and provide resources for new LIBs or other products. However, current recycling methods have limitations. This study explores the behavior of LiFePO4 and graphite particles in a dielectrophoretic high-throughput filter and demonstrates the potential for obtaining pure LiFePO4 fractions from a mixture with graphite.
Article
Engineering, Electrical & Electronic
Philip Kemper, Jorg Thoeming, Ekkehard Kuestermann
Summary: This study outlines the design, construction, and characterization of a tailored low-cost linear birdcage resonator for magnetic resonance imaging at 7T. The proposed design allows users without expertise in MRI coil building to construct a functional resonator with simple means and a budget below 750 euros. The performance of the resonator is comparable to a commercially available resonator in terms of SNR and image quality.
