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
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
Chemistry, Physical
Fatemeh Rajabi, Nazli Bahrami, Esmail Vessally, Rafael Luque
Summary: A highly ordered organic-inorganic hybrid nanomaterial Cu-NHC@Pyrm-OMS was successfully synthesized and utilized as a stable and efficient catalyst for the selective oxidation of primary and secondary alcohols to aldehydes and ketones. This work focused on sustainable and green chemistry by using recoverable nanocatalyst, clean oxidant, and aqueous media.
MOLECULAR CATALYSIS
(2021)
Article
Materials Science, Multidisciplinary
Qikai Shen, Peipei Li, Weiming Chen, Hongqiang Jin, Jia Yu, Lei Zhu, Zhucheng Yang, Runqing Zhao, Lirong Zheng, Weiguo Song, Changyan Cao
Summary: Ionic liquids (ILs) have the advantages of being low cost, eco-friendly, abundant in heteroatoms, and having excellent solubility and coordination abilities with metal ions, making them suitable precursors for fabricating metal single-atom catalysts (SACs). In this study, various metal single atoms anchored on ultrathin N-doped nanosheets were prepared using ILs and g-C3N4 nanosheets as templates. The Cu-1/NC-1000 catalyst exhibited the highest catalytic activity for benzene oxidation to phenol, with a high benzene conversion rate of 82%, phenol selectivity of 96%, and excellent recyclability.
SCIENCE CHINA-MATERIALS
(2022)
Article
Engineering, Chemical
Emanuel Capela, Jessica Bairos, Augusto Q. Pedro, Marcia C. Neves, M. Raquel Aires-Barros, Ana M. Azevedo, Joao A. P. Coutinho, Ana P. M. Tavares, Mara G. Freire
Summary: This work demonstrates that materials modified with ionic liquids (ILs) can be effectively used for the selective adsorption and purification of antibodies, such as IgG, from complex matrices. The developed strategy showed good purification results in various IgG-containing matrices and preserved the structural integrity and biological activity of IgG. This suggests that ILs have the potential to replace costly chromatographic columns currently used for IgG purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Applied
M. O. Guerrero-Perez, R. Berenguer, M. E. Ford, I. E. Wachs
Summary: This study presents the synthesis of a fibrous carbon supported VPO catalyst. The synthesis method is simple, low-cost, scalable, and reproducible, allowing the formation of the active VPP phase on the carbon support. The stability of the catalyst under different conditions was examined, confirming its potential as a promising catalytic material.
Review
Agricultural Engineering
Yaoyao Zhang, Shangde Sun
Summary: The scarcity of fossil fuel and increasing environmental concerns have led to a growing need for the development of environmentally friendly and sustainable energy resources. Biodiesel, produced through transesterification of oils or fats with short-chain alcohol, is considered an optimal replacement for fossil-fuel based diesel due to its reproducible and eco-friendly properties. Among various catalysts, ionic liquids have shown potential as viable substitutes for conventional catalysts in biodiesel production. This paper provides a comprehensive review of the classification, synthetic schemes, and catalytic mechanism of basic ionic liquids, which have been less explored compared to acidic ionic liquids. The utilization of basic ionic liquids as catalysts for biodiesel preparation, along with the current challenges and prospects for future use, is also discussed.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Biochemistry & Molecular Biology
Elisa Garcia-Lopez, Vincenzo Campisciano, Francesco Giacalone, Leonarda Francesca Liotta, Giuseppe Marci
Summary: By using poly(ionic liquid) and Keggin heteropolyacid, more efficient catalysts can be formed on the surface of support materials for the dehydration of fructose. The simultaneous presence of poly-imidazolium and heteropolyacid significantly improves the conversion rate of fructose.
Article
Multidisciplinary Sciences
Zakaria Refaat, Mohamed El Saied, Ahmed O. Abo El Naga, Seham A. Shaban, H. B. Hassan, Mohamed Refaat Shehata, F. Y. El Kady
Summary: The CO2 methanation technique is a solution for reducing CO2 emissions and can also be utilized for energy storage and transmission. The mesoporous carbon nitride (MCN) with its basic character and large surface area is considered as a promising catalyst for CO2 methanation. Ni-doped MCN catalysts with varying Ni content (5-20 wt.%) were prepared using the impregnation method. The catalysts were characterized using multiple physicochemical techniques, and their catalytic performance was evaluated using online gas chromatography. The 15%Ni/MCN catalyst showed the best performance with 100% methane selectivity at 450°C under the investigated conditions.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Environmental
Rita Mahfouz, Jane Estephane, Cedric Gennequin, Lucette Tidahy, Samer Aouad, Edmond Abi-Aad
Summary: In this study, CO2 reforming of methane was investigated over Ni and/or Ru supported on KIT-6 and Ce-promoted catalysts. It was found that Ce promotion led to destruction of porous structure and impaired interactions between active phase and support, but increased the basicity of the catalysts. Among the non-promoted catalysts, Ni-Ru/KIT-6 showed better catalytic performance, while the Ce-promoted Ni-Ru/Ce-KIT-6 catalyst exhibited higher activity and stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
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
Chemistry, Inorganic & Nuclear
Andreia Forte, Sandra Gago, Manuela Ribeiro Carrott, Peter Carrott, Celso Alves, Fernando Teodoro, Rui Pedrosa, Isabel M. Marrucho, Luis C. Branco
Summary: Organic salts based on different choline derivative cations and metal ions were immobilized in mesoporous silica nanoparticles through a two-step synthetic method, characterized using various techniques and evaluated for cytotoxicity in different cell lines. The characterization data confirmed successful functionalization and provided insights into the materials' properties, while the cytotoxicity results revealed differences between the metal organic salts and their immobilized analogues.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Claudio Araya-Lopez, Jael Conejeros, Cristian Valdebenito, Rene Cabezas, Gaston Merlet, Jose F. Marco, Gabriel Abarca, Ricardo Salazar, Julio Romero
Summary: A new type of ionic liquids based on triazoles supported on alumina has been developed for the dehydration of fructose to selectively produce 5-HMF. The catalysts based on triazolium-ionic liquids supported on Al2O3 were synthesized and used for the synthesis of 5-HMF from fructose in DMSO as the reaction solvent.
Article
Chemistry, Multidisciplinary
Manfred Aubermann, Marco Haumann, Dorothea Wisser, Peter Wasserscheid
Summary: In this study, acidic supported ionic liquid phase catalysts were used for the synthesis of oxymethylene dimethyl ethers (OMEs). Successful synthesis of higher OMEs, particularly those with n higher than 3, was achieved using OME1 and trioxane in the gas-phase. The results also showed a correlation between the acidity of the ionic liquid and the catalytic activity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Applied
Hanyang Song, Jing Yang, Shuyu Wan, Ouwen Xu, Xiashi Zhu
Summary: In this study, a porous poly amino acid ionic liquid was synthesized and characterized, and its adsorption mechanism for sunset yellow was investigated. Under optimized conditions, the method was successfully applied for the analysis of beverage samples.
Review
Chemistry, Multidisciplinary
Rosaria Ciriminna, Mina Ghahremani, Babak Karimi, Mario Pagliaro, Rafael Luque
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2020)
Article
Chemistry, Physical
Babak Karimi, Bahareh Ghaffari, Hojatollah Vali
Summary: The study successfully prepared a highly water-dispersible/magnetically separable multi-functional catalyst system by incorporating TEMPO and an imidazolium bromide bearing TEG groups into the Fe3O4@SiO2 core-shell structure. The catalyst showed excellent performance in alcohol oxidation with strong synergistic effect between functionalized components, dual-adjustable selectivity, and recyclability through a double-separation strategy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Kobra Zavar Mousavi, Yadollah Yamini, Babak Karimi, Mohammad Mahdi Khataei, Mojtaba Khorasani, Shahram Seidi, Mostafa Ghaemmaghami
Summary: A sensitive SPME coating based on plugged BFPMO was developed for the extraction of chlorophenols in water and honey samples. The plugged BFPMO coating showed outstanding enrichment ability with low detection limits and good reproducibility. This method proved to be applicable for the determination of CPs in real water samples with high relative recoveries.
Article
Chemistry, Physical
Seyedeh Zahra Alizadeh, Babak Karimi, Hojatollah Vali
Summary: A nitrogen-rich ordered mesoporous carbon (DNOMC) was successfully synthesized and used as a support for palladium nanoparticles to prepare a catalyst with high activity and selectivity in the oxidation of alcohols in water. The catalyst showed good reusability and potential industrial application value.
Review
Materials Science, Multidisciplinary
Babak Karimi, Nasim Ganji, Omid Pourshiani, Werner R. Thiel
Summary: This article provides a comprehensive review of the recent advances in the synthesis, morphology, functionalities, and applications of periodic mesoporous organosilicas (PMOs), with a focus on developments after 2014. Special attention is given to a new family of PMOs, namely hollow spherical and hollow/yolk shell PMOs, which offer additional benefits compared to traditional PMOs.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Rosaria Ciriminna, Mina Ghahremani, Babak Karimi, Mario Pagliaro
Summary: This study provides an overview of the extraction routes of nanocellulose, highlighting the limitations imposed by high costs in its industrial applications. However, in recent years, green extraction routes have been developed, offering the potential for widespread use of nanocellulose in various industries through sustainable production and utilization of low-cost waste materials.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2023)
Article
Chemistry, Applied
Sedigheh Abedanzadeh, Babak Karimi, Zainab Moosavi-Movahedi, Omid Pourshiani, Alireza Badiei, Ali A. Moosavi-Movahedi
Summary: Artificial enzymes resembling natural enzymes were developed using a rational design approach to simulate the coordination sphere around the iron active center. Periodic mesoporous organosilica (PMO) materials were used as supports due to their unique properties, and a new peroxidase-like nanozyme was fabricated. The biomimetic pathways used in this study showed potential for the development of nanozymes with excellent thermal stability and long-term storage stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Organic
Babak Karimi, Akbar Mobaraki, Hamid M. M. Mirzaei, Hojatollah Vali
Summary: A series of metal-free tandem reactions were conducted to synthesize pharmaceutically important 2-substituted benzoazoles using catalyst-free conditions with Et-PMO-Me-PrSO3H and SBA-15-PrSO3H as solid acids. The selectivity between 2-mercaptobenzoxazole and 2-aminobenzoazole derivatives could be altered by changing the catalyst from hydrophobic material 1a to more hydrophilic catalyst 1b. This novel and green approach provides an alternative method for synthesizing 2-substituted benzoazole derivatives.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Rosaria Ciriminna, Mina Ghahremani, Fahimeh Varmaghani, Babak Karimi, Mario Pagliaro
Summary: Chemistry, including electrochemistry, is understood and practiced using models and visualization. This study emphasizes the potential of a modeling approach focused on green chemistry applications in improving electrochemistry education. Green electrosynthesis experiments, in particular, greatly enhance student interest and learning in this interdisciplinary field.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Chemistry, Physical
Omid Pourshiani, Babak Karimi, Hesamodin Moradi, Werner R. R. Thiel, Hojatollah Vali, Pietro Mastrorilli, Stefano Todisco
Summary: The catalytic activity of several supported catalysts with perruthenate anions in mesochannels of plugged and unplugged bifunctional periodic mesoporous organosilicas (Ru@BFPMOs) in the aerobic oxidation of alcohols was investigated. The morphology and structure of the materials were characterized, and it was found that all materials have a 2D-hexagonal symmetry structure. The resulting catalyst showed high efficiency in the oxidation of a wide variety of alcohols.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Nasim Shamsvand, Fahimeh Varmaghani, Babak Karimi, Hamzeh Hassanaki
Summary: The role of nitrogen functional groups in nitrogen-doped ordered mesoporous carbons (OMCs) was investigated using two home-made ionic liquid-derived OMCs with different nitrogen concentrations. It was found that the nitrogen content had a significant impact on the loading of electroactive species on the OMCs.
Article
Chemistry, Multidisciplinary
Mojtaba Khorasani, Babak Karimi, Hojatollah Vali
Summary: In this study, a bifunctional periodic mesoporous organosilica was used as a catalyst support to immobilize iodide ions for the catalytic reaction between CO2 and epoxides, leading to the formation of cyclic carbonates. The catalyst exhibited improved activity and could be reused multiple times without loss in activity or selectivity.
REACTION CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Babak Karimi, Mina Ghahremani, Hojatollah Vali, Rosaria Ciriminna, Mario Pagliaro
Summary: The ABNO@PMO-IL-Br material is a robust bifunctional catalyst for metal-free aerobic oxidation of primary and secondary alcohols under oxygen balloon reaction conditions. It can also be employed successfully in the first metal-free self-esterification of primary aliphatic alcohols, producing valuable esters.
CHEMICAL COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Babak Karimi, Fariborz Mansouri, Hojatollah Vali
ACS APPLIED NANO MATERIALS
(2020)
