Article
Engineering, Chemical
Shanshan Zhang, Junfeng Wang, Fei Shen, Daoguang Wang, Suojiang Zhang
Summary: In this study, the selective electrodialysis (SED) method was employed to separate ILs and metal ions in a spinning solution. Various operating parameters were investigated to evaluate the separation ability. The results demonstrated that the SED process can effectively separate metal ions from IL aqueous solutions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Jing Hua, Marcus Bjorling, Roland Larsson, Yijun Shi
Summary: Research shows that the properties of green lubricants can be influenced by the content of CO2 and water, resulting in changes in viscosity and friction. Therefore, by adjusting the CO2 and water content, the performance of the lubricant can be controlled.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Engineering, Chemical
Francesco Galiano, Raffaella Mancuso, Lorenzo Guazzelli, Michele Mauri, Cinzia Chiappe, Roberto Simonutti, Adele Brunetti, Christian S. Pomelli, Giuseppe Barbieri, Bartolo Gabriele, Alberto Figoli
Summary: This study developed novel polymeric membranes based on polymerized ionic liquids for CO2 separation, which showed a preference towards CO2 permeation in wet conditions and some membranes exceeded the Robeson upper bound for the CO2/H2 gas pair.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Mi Feng, Bin He, Xinyan Chen, Junli Xu, Xingmei Lu, Cai Jia, Jian Sun
Summary: High purity chitin can be obtained from waste shrimp shells through cascade separation using transition metal salt aqueous solution and ionic liquid, which offers an alternative to the traditional commercial preparation method that causes serious pollution due to the use of HCl and NaOH.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Haiyan Jiang, Tingting Li, Lu Bai, Jiuli Han, Xiaochun Zhang, Haifeng Dong, Shaojuan Zeng, Shuangjiang Luo, Xiangping Zhang
Summary: This study proposes a functional hybrid membrane composed of polyimide (PI) and ionic liquids (ILs) for selective separation of NH3 and CO2. The inclusion of ILs reduces the gas transport channel and increases the NH3 affinity, resulting in efficient NH3/CO2 separation.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Robert Biro, Andrew J. Daugulis, J. Scott Parent
Summary: This study focuses on the application of imidazolium-based polymeric ionic liquids (PILs) as absorbents in two-phase partitioning bioreactors for the removal of n-butanol from dilute aqueous solutions. The synthesis and phase transition temperatures of poly(1-vinyl-3-alkylimidazolium) bromides with different alkyl groups, architectures, and compositions, as well as analogs with various inorganic and carboxylate anions, are described. Equilibrium experiments are conducted to quantify the solute affinity of each PIL, which is measured by the n-butanol partition coefficient (PCBuOH) and n-butanol/water selectivity (alpha(b/w)). A complete ternary phase diagram is created to propose a streamlined n-butanol recovery process.
Article
Chemistry, Physical
Xiaohua Jing, Zhumei Sun, Dandan Zhao, Xiaoning Tang, Wenjing Lv, Yunfeng Shi
Summary: In this study, novel ionic liquids were synthesized and their single-stage extraction performance and multi-stage cross flow extraction performance for metal ion separation were investigated. Among them, [C4H9NH3][Cyanex 272] showed good selective extraction and separation, and can be used for the recovery of Mn2+, Co2+, and Ni2+ from spent ternary lithium batteries.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Hamid Reza Mahdavi, Mehran Arzani, Hamed Faramarzi, Omid Bakhtiari, Toraj Mohammadi
Summary: This study investigated the stability of ceramic supported liquid membranes (SLMs) for CO2/CH4 separation. Different materials were used to prepare the SLMs through pressing and coating, and an ionic liquid was immobilized to improve the separation performance. Experimental results demonstrated that the prepared SLMs exhibited stable and reliable separation performance under specific conditions.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Tianhao Yu, Qiong Cai, Guoping Lian, Yinge Bai, Xiaochun Zhang, Xiangping Zhang, Lei Liu, Suojiang Zhang
Summary: The study of using ionic liquids encapsulated metal-organic frameworks ZIF-8 for CO2/CH4 separation mechanisms revealed that the original aperture configuration achieved the best separation performance, and the addition of ILs prevented large swing of the apertures. Furthermore, the effect of IL viscosity on the aperture configuration was investigated, showing that higher IL viscosity stabilized the original aperture configuration.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Polymer Science
Yaohui Cheng, Xin Zhang, Chunchun Yin, Jinming Zhang, Jian Yu, Jun Zhang
Summary: The study introduces new cellulose esters containing imidazolium cation for enhanced CO2 gas separation. These materials effectively improve the CO2 permeability of cellulose ester/ILs composite membranes, showing good mechanical properties and thermal stability.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Engineering, Chemical
Yifeng Chen, Biao Li, Jian Wu, Zhuhong Yang, Xiaohua Lu, Xiaoyan Ji
Summary: In this study, the kinetic properties of CO2 in aqueous choline-amino acids were systematically investigated, resulting in the proposal of a new absorption ability index. The results indicated that 30 wt% aqueous choline-serine is a promising absorbent for CO2 separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Imran Khan Swati, Qazi Sohaib, Shuyun Cao, Mohammad Younas, Dan Liu, Jianzhou Gui, Mashallah Rezakazemi
Summary: Four ionic liquids were synthesized for the separation of gases CO2/N-2 and CO2/CH4 through supported ionic liquid membranes (SILMs), with [BSmim][tos] showing the highest solubility coefficient and permeability, as well as the highest selectivity values. The ILs synthesized for this work can be ranked as [BSmim][tos] > [BSmpy][tos] > [Bmim][Cl] > [Bpy][Cl], indicating their potential use for CO2 separation through SILMs.
Article
Engineering, Chemical
Kun Jiang, Guohui Zhou, Timing Fang, Xiaomin Liu
Summary: The self-assembly behavior of ionic liquids in aqueous solution was studied through molecular dynamics simulations, revealing the dominant role of interactions between tail groups in stabilizing vesicles and the influence of membrane thickness and alkyl chain arrangement on vesicle permeability. The interdigitated structure of tail groups reduced water exchange rate, while the orientation of the imidazolium ring promoted water molecules approaching hydrophobic regions. These findings suggest the potential for obtaining vesicles with excellent permeability properties by screening the hydrophilic and hydrophobic properties of ILs for applications in separation and drug delivery processes.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Ana R. Nabais, Sadia Ahmed, Muhammad Younis, Jin-Xiu Zhou, Joao R. Pereira, Filomena Freitas, David Mecerreyes, Joao G. Crespo, Mu-Hua Huang, Luisa A. Neves, Liliana C. Tome
Summary: In this study, a new type of mixed matrix iongel membrane, composed entirely of organic materials, was fabricated by combining ionic liquids (ILs) and porous organic polymers (POPs). The resulting membranes exhibited improved gas separation performance and ideal selectivity, making them promising for CO2 separation processes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Stephanie Boullanger, Emmanuel Contal, Cedric C. Buron, Lydie Viau
Summary: Pyrrole-functionalized imidazolium surfactants with different alkyl chain lengths were synthesized and their aggregation properties in water were investigated. It was found that these surfactants exhibited lower critical micellar concentration compared to their non-functionalized analogues. The structure of the aggregates formed and the preparation of water-stable polypyrrole nanoparticles were also studied.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
