Article
Crystallography
Zohra Taibi, Kahina Bentaleb, Zohra Bouberka, Christel Pierlot, Maxence Vandewalle, Christophe Volkringer, Philippe Supiot, Ulrich Maschke
Summary: This report investigates the modification of a bentonite clay to enhance its adsorption capacity for the removal of azo dyes. The clay was purified and modified through acid activation and intercalation with a cationic surfactant. The modified clays showed significantly increased surface area and pore volume compared to the original clay. The modified clay with the highest adsorption capacity was found to be a promising low-cost material for the removal of azo dyes.
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
Ruta Ozola-Davidane, Juris Burlakovs, Toomas Tamm, Sindija Zeltkalne, Andrey E. Krauklis, Maris Klavins
Summary: The research aims to prepare an environmentally friendly new class of clay sorbents modified with ionic liquids for potential applications in wastewater treatment from the textile industry. Imidazolium-based ionic liquids with different alkyl chain lengths were successfully intercalated in sodium bentonite via an ion exchange reaction, enhancing the clay's sorption capacity for Congo red dye. The modified clays, especially those modified with 1-dodecyl-3-methylimidazolium chloride, showed much higher Congo red sorption capacity compared to unmodified bentonite.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Jie Fu, Jia-Ying Liu, Guo-Hao Zhang, Qiu-Hong Zhu, Shuang-Long Wang, Song Qin, Ling He, Guo-Hong Tao
Summary: Adsorption, storage, and conversion of gases are the three critical topics in the field of clean energy and environmental mediation. Exploring new methods to prepare high-performance materials to improve gas adsorption is one of the most concerning topics in recent years. In this work, an ionic liquid solution process (ILSP) is explored to greatly improve the adsorption kinetic performance of covalent organic framework (COF) materials for gaseous iodine.
Article
Biochemistry & Molecular Biology
Laura Cocheci, Lavinia Lupa, Nick Samuel Tolea, Radu Lazau, Rodica Pode
Summary: This study successfully synthesized and functionalized Mg3Al-LDH to obtain efficient adsorbent materials for palladium removal from aqueous solutions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Environmental Sciences
Shahin Saleh, Sepideh Mohammadnejad, Hossein Khorgooei, Maryam Otadi
Summary: A bentonite/chitosan/titania composite material was developed for arsenic removal, showing high efficiency and good recyclability. The addition of TiO2 in the composite material was found to improve the arsenic removal efficiency, as demonstrated in the study.
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
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
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)
Article
Chemistry, Physical
Marcia M. S. Alves, Joao M. M. Araujo, Ivo C. Martins, Ana B. Pereiro, Margarida Archer
Summary: The study investigates the interaction of fluorinated ionic liquids with bovine serum albumin (BSA), demonstrating the potential application value of fluorinated ionic liquids in stabilizing and structurally affecting BSA.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Green & Sustainable Science & Technology
Ting-Yi Huang, Jia Shin Ho, Shuwen Goh, Tzyy Haur Chong
Summary: The study investigated the recovery of ethanol from dilute aqueous solutions using supported ionic liquid membrane (SILM) perstraction. The combination of [THTDP][N(CN)2] as a solvent and polymeric microporous membrane (PVDF-GVHP) showed the best overall performance, with high flux and selectivity maintained for 240 hours. This SILM perstraction system proved to be a promising alternative to energy-intensive purification techniques for extracting ethanol as low as 2 wt% from fermentation broths.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Multidisciplinary
Kecheng Jie, Yujuan Zhou, Hugh P. Ryan, Sheng Dai, Jonathan R. Nitschke
Summary: This article discusses the concept of porous liquids and their potential applications in the chemical industry, focusing on early reports of successful construction of porous liquids based on existing porous scaffolds. It pays particular attention to design strategies and structure-property relationships.
ADVANCED MATERIALS
(2021)
Article
Environmental Sciences
Jing Zhang, Jianhui Wang, Fukun Zhu, Ping Mao, Zhengyan Wu, Kun Hong
Summary: In this study, a modification method of bentonite by electron beam irradiation was proposed to enhance the adsorption capacity of Cr(VI) in aqueous solution. The modified bentonite showed improved dispersibility and achieved a maximum adsorption capacity of 97.3% at an optimal irradiation dose of 22 KGy. Low pH conditions and the concentration of Cr(VI) were found to affect the adsorption efficiency.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Chemistry, Physical
Chenhao Jiang, Hongye Cheng, Zexian Qin, Ruizhuan Wang, Lifang Chen, Chen Yang, Zhiwen Qi, Xiucai Liu
Summary: This study evaluated the performance of 200 ionic liquids in extracting PDA from aqueous solution and investigated the extraction mechanism through sigma-profile and interaction energy analyses. Both cation and anion have impacts on extraction efficiency, with IL composed of long alkyl-chain cation and [PF6](-) or [TF2N](-) anion being favorable for extraction.
GREEN ENERGY & ENVIRONMENT
(2021)
Article
Engineering, Chemical
Xu Yang, Jieshi Xiao, Jian Huang, Kaixiang Peng
Summary: This study introduces an online convolutional adversarial autoencoder (AAE) model to learn representative industrial process information. By extracting features that reflect diverse information and follow a Gaussian distribution, the model improves the accuracy of fault detection and removes redundant information through a feature selection strategy.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
Article
Engineering, Chemical
Shao-Yang Wu, Meng-Tsun Lai, Chung-Hui Hsu, Kevin C. W. Wu, Yesong Gu
Summary: This study investigated the effectiveness of using Fe-based MOF or MIL-100(Fe) in conjunction with a PEDOT-modified Pt electrode for detecting the synthetic azo dye tartrazine. By modifying the electrode with two different methods, favorable lower reductive potentials, competitive sensitivities, and good repeatability and stability were achieved in all MIL-100(Fe)/PEDOT/Pt electrodes.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
