Article
Chemistry, Applied
Jinrui Zhang, Jie Yin, Wendi Fu, Hongshun Ran, Wei Jiang, Hongping Li, Wenshuai Zhu, Huaming Li, Ming Zhang
Summary: Silica-based porous ionic liquids (OS-PIL) functionalized with quaternary ammonium salt were successfully synthesized to remove dibenzo-thiophene (DBT) in model fuel. The OS-PIL exhibited high extraction activity with a Nernst partition coefficient of 4.22. The synergistic effect between porous materials and ionic liquids, along with the multiple sites in the quaternary ammonium salt, greatly contributed to the high extractive desulfurization efficiency.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Lili Jiang, Ke Mei, Kaihong Chen, Rina Dao, Haoran Li, Congmin Wang
Summary: An efficient method for predicting the capture of SO2 from flue gas using imidazolium ionic liquids was reported. Through quantitative calculations and design, the absorption performance of various imidazolium ionic liquids for SO2 was predicted and validated through experiments.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Engineering, Chemical
Junyuan Hua, Jintao He, Hongchang Pei, Xiaohua Ma, S. Ranil Wickramasinghe, Jianxin Li
Summary: The worldwide demand for lithium is growing rapidly. Extracting lithium from saltlake brines with low concentration and high Mg/Li ratio remains challenging. In this study, a supported ionic liquid membrane contactor was developed for high-efficiency lithium recovery. The contactor showed excellent Li+ mass transfer performance, providing an effective solution for selective separation of Mg/Li and utilization of lithium resources in salt lake water.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Polymer Science
David Domingo Huguet, Aitor Gual, Ricard Garcia-Valls, Adrianna Nogalska
Summary: This study demonstrates the potential of improving CO2 capture capabilities by supporting ionic liquids (ILs) on a polymeric matrix. The internal morphology and surface characteristics of the membrane were found to influence the ILs sorption capacity and CO2 solubility.
Article
Engineering, Environmental
Guojia Yu, Dongyu Jin, Fan Zhang, Shichao Tian, Zhiyong Zhou, Zhongqi Ren
Summary: This study used novel porous liquids to achieve the desulfurization process of fuel oil, and improved the desulfurization performance through electrostatic interaction and microporous structure. The experimental results showed that the porous liquids have dual functions of extraction and adsorption. This new type of solvent has great potential for application and research value.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Vladislav Gorbunov, Aleksey Buryak, Kirill Oskolok, Andrey G. Popov, Irina Tarkhanova
Summary: In this article, a series of effective catalysts based on betaine and sulfuric or phosphomolybdic acids were obtained. These compositions were characterized and tested in the oxidation of sulfur- and nitrogenous-containing compounds by H2O2. The acidity change is non-linearly influenced by the amount of heteropolyacid (HPA), and the removal of sulfur-containing compounds is correlated with the concentration of Bronsted acid sites on the catalyst surface. On the other hand, the removal of pyridine is primarily determined by the content of heteropolyacids in the catalyst.
Article
Engineering, Chemical
Lianwen He, Jing He, Peng Cui, Yuting Feng, Mingqing Hua, Jinrui Zhang, Peiwen Wu, Wenshuai Zhu, Huaming Li, Zhichang Liu, Chunming Xu
Summary: By introducing porous boron nitride into ionic liquids, the efficiency of sulfur extraction from fuel oil can be improved. Using m-BN-PIL as an extractant under optimized conditions achieves desulfurization performances of 59.2% and 61.8% for dibenzothiophene and 4-methyldibenzothiophene, respectively. After four stepwise extractions, the extraction efficiency over dibenzothiophene reaches 98.2%, achieving deep desulfurization of fuel oil.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
O. Palumbo, F. Trequattrini, A. Cimini, A. Tsurumaki, M. A. Navarra, A. Paolone
Summary: The study investigates the intra- and intermolecular interactions in ether-functionalized ionic liquids through infrared spectroscopy measurements, finding that the trans conformer of the FSI anion is more stable than the cis conformer and there is evidence of hydrogen bonding between the anion's O atom and the closest H atoms on the cation. The results suggest that such highly directional interactions are more observable in ether-functionalized samples, particularly those containing FSI as an anion.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Polymer Science
Praveenkumar Sappidi, Xiaoyang Liu, Kathryn E. O'Harra, Jason E. Bara, C. Heath Turner
Summary: Molecular dynamics simulations and complementary experiments were used to study the inter- and intramolecular structures and conformational properties of imidazolium ionenes in an ionic liquid. Different chemical and structural variations of the polymers were found to affect their internal interactions and interactions with surrounding molecules, resulting in changes in chain flexibility and alignment of imidazolium groups. The concentration of alkyl groups and polymer architecture also play important roles in determining the polymer structure and properties.
Article
Chemistry, Multidisciplinary
Yuval Simha, Gil Daniels, Amalya Goldman, Elihay Kuniavsky, Dmitry Tsvelikhovsky
Summary: A new strategy for direct access to fully substituted polycyclic imidazolium salts using alpha-enaminones and proline as the reagents is reported. This open-flask operation is a catalyst-, metal-, and Lewis acid-free green process, which does not require an ion-exchange step. It can produce good yields with minimal formation of side products, and is not limited to aryl substituents.
Article
Chemistry, Physical
Yu Zhang, Shuwei Li, Yixin Xu, Xinyun Shi, Mingxin Zhang, Yingning Huang, Ying Liang, Yaqiong Chen, Wanli Ji, Jung Rae Kim, Wenliang Song, Deng-Guang Yu, Il Kim
Summary: The newly developed HPN-ILs exhibit uniform hollow spherical morphology, adequate surface area, and excellent physicochemical stability. They show high activity against both Gram-positive and Gram-negative bacteria with typical time/dosage-dependent antibacterial activities.
Article
Engineering, Chemical
Xiang-Rui Zeng, Lu-Lu Wang, Ji-Lin Wang
Summary: The biodiesel was successfully synthesized by transesterification of soybean oil and methanol using a silica-supported morpholine alkaline ionic liquid catalyst at ambient temperature. The catalyst showed good reusability without significant decrease in catalytic activity, with a high yield of biodiesel obtained under optimal reaction conditions.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Syeda Saba Fatima, Azry Borhan, Muhammad Ayoub, Noraini Abd Ghani
Summary: The article emphasizes the importance of CO2 capture and sequestration, comparing the advantages and disadvantages of different methods, as well as the application prospects of ILs in absorption.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Review
Biochemistry & Molecular Biology
Anna Wolny, Anna Chrobok
Summary: Supported ionic liquid phases offer several advantages in catalysis, providing catalytic activity or efficient matrix and improving mass transport. Silica-based materials, due to their cost-efficiency and specific properties, are widely used in this field.
Article
Thermodynamics
Ahmed A. Askalany, Kutub Uddin, Bidyut B. Saha, Muhammad Sultan, Giulio Santori
Summary: This study presents a new method for experimental investigation of water adsorption kinetics using silica-supported ionic liquid, and predicts its performance in water desalination through modeling. The results suggest a promising future for this material in water desalination applications.