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
Chemistry, Physical
Yunxiang Lu, Yumei Hong, Zhijian Xu, Honglai Liu
Summary: This study systematically investigated the interfacial interactions and structures of imidazolium-based ILs on black phosphorus surfaces, revealing that adsorption is dominated by strong electrostatic interactions, weak van der Waals forces, and other interactions. The length of the alkyl chains in the cation plays a significant role in tuning the adsorption behaviors, and differences between protic and aprotic ILs were also examined.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
M. A. Deyab, M. I. Nessim, Abdelfattah Haikal, Q. Mohsen, N. A. Khalil
Summary: This paper describes the corrosion inhibiting action of four new imidazolium-derived ionic liquids (ILs). Various analytical techniques were used to confirm their molecular formula and characterize their adsorption behavior on a steel substrate. Results showed that these ILs exhibited effective corrosion suppression and adsorbed onto the steel surface through physi-chemisorption. SEM/EDX and FTIR analysis further supported the adsorption process of the ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
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, 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
Materials Science, Multidisciplinary
Marianna Mamusa, David Chelazzi, Michele Baglioni, Sergio Murgia, Emiliano Fratini, David Rivillo, Piet W. N. M. van Leeuwen, Henri S. Schrekker, Piero Baglioni
Summary: Solutions of weakly coordinating ionic liquids (ILs) in alkyl carbonates have attracted attention due to their green solvents properties, but the understanding of ILs' phase behavior and structure in organic polar solvents is lacking. This study investigates the interactions and nanoscale structure of a specific IL, [BMIm][BARF], in alkyl carbonate solvents. The results show that [BMIm][BARF] is mostly undissociated in these solvents and the presence of rod-like nanostructures in the IL/solvent mixtures. The study also reveals that the self-assembly of nano-sized structures is hindered by slower ion diffusion in alkyl carbonates with lower dielectric constants. The findings have implications in various fields including batteries, catalysis, extraction, and bio-applications.
APPLIED MATERIALS TODAY
(2023)
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
Salhah H. Alrefaee
Summary: Through DFT computational study, it was found that imidazolium and pyridinium based ionic liquids exhibit good anticorrosive potential, with corrosion inhibition performance depending on the nature of alkyl groups and halide ions. Among the studied ionic liquids, certain compounds were found to show the best corrosion inhibition performance in both imidazolium and pyridinium based categories.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
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
Biochemistry & Molecular Biology
Hui Deng, Chali Liu, Xin Xu, Yuanyuan Wu, Muhan Chen, Zhangjie Huang
Summary: In this study, three imidazolium-based ionic liquids were synthesized and used to construct microemulsion systems for the recovery of Pd (II) from cyanide media. The [BUIm]Br/n-heptane/n-pentanol/sodium chloride microemulsion system exhibited the highest extraction percentage. After optimization, the extraction percentages of Pd (II) using the [BUIm]Br/n-heptane/n-pentanol/sodium chloride microemulsion system were all above 98.5%. The proposed process has the potential for comprehensive treatment of cyanide metallurgical wastewater.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Hind M. Ismaeel, M. A. Deyab, M. Nessim, Safaa Elewa
Summary: For the first time, five imidazolium-based ionic liquids (ILs) were formulated and their inhibitory effects on 304SS corrosion in 1.0 M HCl solution were explored. Chemical and electrochemical procedures were used for verification, and it was found that the new ILs have effective inhibition at small doses.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Wanting Zhao, Yuandong Cui, Shuzhen Zhou, Junqing Ye, Jian Sun, Xiaomin Liu
Summary: This study prepared superparamagnetic lignin composites by self-assembly method and investigated their removal efficiency of dyes from aqueous solutions. The results showed that the composites had excellent adsorption capacity, fast adsorption kinetics, stability, and recyclability, providing a new approach for dye removal.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Engineering, Chemical
Filipe H. B. Sosa, Pedro J. Carvalho, Joao A. P. Coutinho
Summary: Ionic liquids (ILs) have great potential as solvents and catalysts in the chemical industry, but the lack of efficient and economically viable recycling and purification processes hinders their practical application. This study focuses on understanding the separation of ILs from aqueous solution using membranes, a widely used technique in industry.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Dorota Babilas, Anna Kowalik-Klimczak, Anna Mielanczyk
Summary: This study investigated the possibility of using electrodialysis (ED) to recover 1,3-dialkylimidazolium ionic liquid (IL), specifically N,N-dibutylimidazolium chloride ([C4C4IM]Cl). The results showed that ED allows for the recovery and concentration of [C4C4IM]Cl from dilute aqueous solutions, with the [C4C4IM]Cl content in the concentrates being over three times higher than in the initial solutions. The highest recovery and ED efficiency were obtained when the initial [C4C4IM]Cl concentration in the solution was 20 g/L.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agricultural Engineering
Janusz Nowicki, Natalia Stanek
Summary: This study demonstrates that the conversion of carbohydrates (glucose, xylose, fructose) to furan aldehydes is significantly influenced by the structural parameters of the ionic liquid catalyst and the presence of a Bronsted acid co-catalyst. The synergistic effect of acidic IL and Bronsted acid plays a crucial role in enhancing the selectivity and efficiency of the conversion process.
BIOMASS & BIOENERGY
(2021)
Review
Chemistry, Physical
Lei Ye, Yiwen Han, Xiaotong Wang, Xuebin Lu, Xinhua Qi, Hongbing Yu
Summary: By reviewing the conversion mechanisms and catalyst roles in furfural production, the importance of hemicellulose, xylan, and xylose in the process was understood, along with summarizing the issues in each production stage. The discussion provided valuable insights for furfural production.
MOLECULAR CATALYSIS
(2021)
Article
Biochemistry & Molecular Biology
Yining Liang, Xiaoning Liu, Xinhua Qi
Summary: In this study, ordered mesoporous carbons (OMCs) with hierarchical pore structure were synthesized using lignin from walnut shell as carbon precursor and Co2+ ion as crosslinking agent. The resulting material exhibited a large specific surface area and pore volume, and showed good electrochemical performance as an electrode for supercapacitors. The hierarchically porous structure and appropriate microporous/mesoporous ratio contributed to the superior electrochemical performance.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Multidisciplinary
Haixin Guo, Taishi Dowaki, Feng Shen, Xinhua Qi, Richard Lee Smith
Summary: This article highlights the importance of upgrading renewable resources to platform chemicals and biofuels, with a focus on the chemocatalytic methods for producing 5-EMF and recommendations for catalytic system development. A multicriteria assessment evaluation tool is proposed as a sustainability assessment method for routes to synthetic 5-EMF from biomass.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Physical
Yining Liang, Yingqiao Zhou, Richard Lee Smith Jr, Xinhua Qi
Summary: Ultra-thin wrinkled graphene-like nanosheets (GNs) were prepared via classical evaporation induced self-assembly (EISA) of 4-nitrocatechol as carbon precursor, followed by activation and calcination. The resulting GN-900 exhibited a specific capacitance of 367 F g-1 at 0.2 A g-1 and a rate capability of 228 F g-1 at 40 A g-1. Supercapacitors assembled with GN-900 showed specific energy densities of 11.5 Wh kg-1 at power densities of 89.8 W kg-1, with capacitance retention greater than 98% after 3000 cycles at 10A g-1. The materials prepared in this study demonstrated structural stability and favorable electrochemical performance for supercapacitor applications.
Article
Chemistry, Physical
Xiaoning Liu, Yicong Wang, Yiwei Tang, Richard L. Smith Jr, Yingying Xu, Yining Liang, Xinhua Qi
Summary: This study critically assesses the use of plant polyphenols for forming ordered mesoporous carbons (OMCs) via metal ion and bimetal ion cross-linking chemistry. The researchers found that the aromatic hydroxyl content, solubility, and molecular mass of the polyphenols are key factors in OMC formation. The metal-functionalized OMCs showed excellent performance in electrocatalytic reduction, catalytic hydrogenation, and as electrode materials for supercapacitors. The proposed techniques allow for the direct application of a wide range of plant polyphenols in environmental applications without further processing.
Article
Chemistry, Physical
Hengyu Hao, Feng Shen, Jirui Yang, Mo Qiu, Haixin Guo, Xinhua Qi
Summary: This study proposes an environmentally friendly system for the synthesis of sulfonated carbon materials from discarded masks and efficient catalyzed fructose upgrading to 5-hydroxymethylfurfural (HMF). Solid acid catalysts were prepared from waste masks and evaluated for their performance. The results show that the catalysts achieved high yield of HMF under certain conditions.
Article
Engineering, Environmental
Haiqing Zhang, Richard Lee Smith Jr, Haixin Guo, Xinhua Qi
Summary: Ordered mesoporous carbon materials (OMC-Co-Tx) functionalized with catalytically-active metals were synthesized through evaporation-induced self-assembly and calcination at (600 to 800) degrees C. These materials were then used as activators for peroxymonosulfate (PMS) to remove sulfamethoxazole (SMX) from aqueous solutions. The increase of calcination temperature improved the catalyst behavior, resulting in better SMX degradation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Wenping Cao, Danni Li, Sisuo Zhang, Jing Ren, Xiaoning Liu, Xinhua Qi
Summary: Hierarchical porous carbon spheres were synthesized using tannic acid and Zn2+ as biomass source and cross-linking agent, respectively, showing excellent adsorption performance and stability for methylene blue removal.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yingqiao Zhou, Yining Liang, Xiaoning Liu, Xinhua Qi
Summary: Graphene-like carbon-encapsulated Ru catalysts (Ru/GLC) were synthesized and showed superior catalytic performance for glucose hydrogenation to sorbitol, with high yield, stability, recyclability, and applicability for high initial glucose loading. This research provides a simple strategy for the synthesis of graphene-like carbon materials for metal encapsulation and demonstrates their high activity and stability for glucose hydrogenation to sorbitol.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Yixuan Feng, Kun Yang, Richard L. L. Smith Jr, Xinhua Qi
Summary: In this study, two-dimensional metal-organic framework (MOF) nanoarrays embedded with Ni/Co/Fe sulfide nanoclusters were used as electrocatalysts for efficient oxidation of 5-hydroxymethylfurfural (HMF) to produce 2,5-furandicarboxylic acid (FDCA). The as-prepared NiCoFeS-MOF catalyst achieved 100% HMF conversion, 99% FDCA yields, and high Faraday efficiencies. The combination of metal sulfide nanoclusters with 2D MOF nanoarrays increased the active surface area and improved electron transport for enhanced electrooxidation performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Chemistry, Multidisciplinary
Yingqiao Zhou, Richard L. Smith, Xinhua Qi
Summary: This article reviews the latest progress in chemocatalytic production of sorbitol from cellulose, with a focus on sustainable chemistry. The results show that using supported metal catalysts has achieved good performance in sorbitol production.
Article
Chemistry, Multidisciplinary
Yixuan Feng, Richard Lee Smith, Junyan Fu, Xinhua Qi
Summary: In this study, hollow Co3S4/Ni3S2 nanotube arrays were successfully synthesized and applied as electrodes for the electrocatalytic oxidation of biomass. The hollow structure of the nanotube arrays improved electron transport efficiency, expanded the specific surface area, and increased the access of reactants to catalytic sites.
Article
Chemistry, Multidisciplinary
Yixuan Feng, Richard Lee Smith, Junyan Fu, Xinhua Qi
Summary: In this study, hollow Co3S4/Ni3S2 nanotube arrays were synthesized as electrodes for electrocatalytic oxidation of biomass, achieving excellent results.
Review
Chemistry, Multidisciplinary
Feng Shen, Richard Lee Smith, Jialu Li, Haixin Guo, Xiao Zhang, Xinhua Qi
Summary: This review analyzes various reaction pathways for converting agricultural waste biomass into formic acid and concludes that catalytic oxidation is the most sustainable method. This method excels in terms of yield, waste emissions, feedstock cost, and innovation potential.
Article
Chemistry, Multidisciplinary
Yiwei Tang, Mo Qiu, Jirui Yang, Feng Shen, Xiaoqi Wang, Xinhua Qi
Summary: The study prepared Ni-doped ordered mesoporous carbon using a one-pot method, which showed excellent stability and recyclability in catalyzing the conversion of biomass-derived substances. The results have significant implications for the green synthesis of metal-doped OMC materials.
