Article
Chemistry, Multidisciplinary
Zheng Wang, Da Li, Shangqing Chen, Jiayin Hu, Yanxi Gong, Yafei Guo, Tianlong Deng
Summary: The green basic IL [DBUH][BO2] was synthesized for the first time and proved to be an efficient catalyst for the cycloaddition of CO2 and epoxides, with high product yields and easy recovery and reuse. The synergy between the basic anion and the cation with N-H contributed to the catalytic effects, and the IL also showed effectiveness in the reaction of CO2 and 2-aminobenzonitriles into quinazoline-2,4(1H,3H)-diones.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Green & Sustainable Science & Technology
Jinwei Zhang, Xiaopeng Li, Zheng Zhu, Tao Chang, Xiying Fu, Yongjing Hao, Xiaocai Meng, Balaji Panchal, Shenjun Qin
Summary: The study introduces a series of hydroxylamino-tethered polymeric ionic liquids with adjustable alkyl length substitutes, which efficiently and stably convert CO2 into cyclic carbonates without the need for metals and solvents.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Article
Polymer Science
Biao Zhang, Guillaume Sudre, Guilhem Quintard, Anatoli Serghei, Julien Bernard, Etienne Fleury, Aurelia Charlot
Summary: This study mixed RAFT-made poly(ionic liquid) chains with an ionic liquid, leading to homogeneous and transparent solutions due to similarities in structure and polarity. Rheology investigation showed that the solution's viscoelastic properties can be finely tuned by adjusting the chain molar mass and concentration. The high ionic conductivity and multi-scale local homogeneity of the PIL/IL solutions were confirmed through X-ray scattering experiments and microscopy analysis.
Article
Chemistry, Multidisciplinary
Zhipeng Zhang, Baole Li, Qi Chen, Xiwen Chen, Taihong Yan, Weifang Zheng, Chen Zuo
Summary: A Ru/ZSM-5 catalyst has been developed for efficient decomposition of hydroxylamine nitrate and hydrazine nitrate. The catalyst can thoroughly decompose the chemicals in 1.0 mol L-1 HNO3 under 80 degrees C and can be reused at least 130 times.
Article
Chemistry, Physical
Mohammad M. Ghiasi, Amir H. Mohammadi, Sohrab Zendehboudi
Summary: This study modeled the three-phase equilibria of methane hydrate in IL aqueous solutions using LSSVM, ANFIS, and CART models, revealing that the LSSVM approach outperforms CART and ANFIS models in representing dissociation temperatures. The findings suggest that the effects of ILs on methane hydrate stability conditions can aid in effective hydrate management.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Leizhi Zheng, Guoqiang Yang, Jia Liu, Xingbang Hu, Zhibing Zhang
Summary: This study introduces an effective method for synthesizing various carbamates from amines, alcohol, and CO2, proposing two pathways to achieve this process and allowing for the easy recovery and reuse of DBU.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Saleh Yousefi, Naeimeh Bahri-Laleh, Mehdi Nekoomanesh, Mehrsa Emami, Samahe Sadjadi, Seyed Amin Mirmohammadi, Michele Tomasini, Eduard Bardaji, Albert Poater
Summary: Ionic liquid based systems were used to facilitate the cationic polymerization of isobutylene. The AlCl3/S-IL initiator system was found to be a safer and greener alternative to the industrially used BF3 system. The microstructure and properties of the synthesized polyisobutylene were analyzed and compared, and DFT calculations were performed to investigate the catalyst interaction and sequestering in different systems.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Environmental
Leizhi Zheng, Guoqiang Yang, Jia Liu, Bowen Jiang, Ting Yu, Xingbang Hu, Zhibing Zhang
Summary: The synthesis of benzimidazolone derivatives via the carbonylation of ophenylenediamines with CO2 under mild conditions using DBN as a superbase and the formation of switchable ionic liquids provides a sustainable technique for the production of benzimidazolones.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Qiu Zhao, Gang Wang, Fuxia Liao, Yifan Sha, Fei Xu, Chunshan Li, Zengxi Li, Yijun Cao
Summary: An ionic liquid (IL) catalyzed solvent-free process was developed for the direct synthesis of chalcone and its derivatives, with [Bmim]OH identified as the optimal IL with the highest yield and selectivity reaching up to 96.7% and 100%, respectively. A reaction mechanism-based kinetic model was established and regressed with experimental data, revealing the rate-controlling step as the beta-Hydroxylketone dehydrolysis with an activation barrier of 37.8 kJ.mol(-1).
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Chao Wang, Qianqian Li, Shilei Wang, Gongming Zhu, Anlian Zhu, Lingjun Li
Summary: A new reaction system was developed for the efficient synthesis of 5-aryl-1,2,3-triazole compounds, featuring low-cost catalyst, clean oxidant, less-toxic additive, and low reaction temperature. This method can provide mild conditions for multi-component synthesis of complex alkynyl or azide donors.
Article
Chemistry, Organic
Pufan Ni, Lei Yang, Yi Shen, Lei Zhang, Yueyue Ma, Maolin Sun, Ruihua Cheng, Jinxing Ye
Summary: A general method for synthesizing phenols from electron-deficient aryl ammonium salts or heteroaryl ammonium salts was developed using hydroxide surrogates such as benzaldehyde oxime, acetohydroxamic acid, and hydroxylamine hydrochloride, resulting in yields of 20-98%.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Yingying Yang, Honglei Fan, Tianbin Wu, Guanying Yang, Buxing Han
Summary: Phenol in waste water poses a threat to human health and is resistant to natural decomposition. In this study, tungstate ionic liquids were designed and prepared, and it was found that dodecyltrimethylammonium tungstate could efficiently catalyze the degradation of phenol into gases and water under mild conditions. The tungstate anion exhibited excellent catalytic oxidative activity, and the long carbon chain group connected with the cation of the ionic liquid facilitated the complete degradation of phenol at mild conditions. Increasing the amount of hydrogen peroxide enhanced the total degradation of phenol. Furthermore, the ionic liquid showed excellent thermal stability and could be reused. This work presents a novel strategy for the efficient treatment of phenol-containing waste water.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Chunxiao Gong, Zhaoyang Ju, Kuichuan Sheng, Ximing Zhang
Summary: Improper disposal of crustacean shell waste has caused environmental problems and waste of resources. Shell biorefinery is an emerging concept that upcycles crustacean shell waste into value-added chemicals. This study developed a sustainable and efficient route for producing HMF from chitin, a major component of crustacean shells.
Article
Chemistry, Multidisciplinary
Rui Wang, Yi-Ran Du, Guang-Rong Ding, Rui Zhang, Peng-Xin Guan, Bao-Hua Xu
Summary: The vapor-phase methanation of CO2 at a low temperature was achieved under the catalysis of [Ru]@P(ILn-POSS)-Cl-A hybrids. The presence of a chloride ligand at the Ru center is crucial for high activity, and the textural structure of the hybrid can be adjusted by the number of IL units in the monomer.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Bin Wang, Dawei Cao, Xuecheng Ma, Yun Feng, Lin Zhang, Yonghong Zhang, Chenjiang Liu
Summary: A transition-metal-free synthetic strategy has been developed for the synthesis of N-aryl amides, using environmentally benign and readily available starting materials under ambient conditions. The reusability of the promoter further proved the practicality of this method.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Carla Rizzo, Giuseppe Misia, Salvatore Marullo, Floriana Billeci, Francesca D'Anna
Summary: Ionic liquid gels (ILGs) prepared from bio-based polymers and ionic liquids are promising adsorbent materials for fuel desulfurization, achieving efficient removal of sulfur compounds in fuel.
Review
Biochemistry & Molecular Biology
Salvatore Marullo, Francesca D'Anna
Summary: This article provides an overview of recent achievements in the use of ionic liquids (ILs) for obtaining 5-HMF from lignocellulosic biomass. It highlights the suitability of ILs as solvents for the conversion of biomass and carbohydrates into 5-HMF.
Article
Polymer Science
Giulia Infurna, Luigi Botta, Marco Maniscalco, Elisabetta Morici, Giuseppe Caputo, Salvatore Marullo, Francesca D'Anna, Nadka Tz Dintcheva
Summary: In this study, agricultural waste was recovered and converted into biofuel through a pyrolysis process, and the solid residual fraction was used as a filler for biocomposite production. The properties of the filler were characterized, and the performance of the biocomposites was evaluated using various analysis methods.
Article
Chemistry, Physical
Salvatore Marullo, Matteo Tiecco, Raimondo Germani, Francesca D'Anna
Summary: In this study, we identified cetyldiethanolamine-N-oxide as the best surfactant for forming eutectic gels. The best-performing gel showed excellent adsorption capacity for removing I2, and it could be regenerated and reused without loss in performance.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Biomaterials
Carla Rizzo, Patrizia Cancemi, Miriam Buttacavoli, Gianluca Di Cara, Cesare D'Amico, Floriana Billeci, Salvatore Marullo, Francesca D'Anna
Summary: In this study, imidazolium and ammonium-based folate salts were synthesized and their photophysical behavior, gelation ability, and antiproliferative activity were investigated. The salts showed targeted chemotherapeutic properties in both solution and gel phase, with uptake mechanism and selectivity indexes depending on the nature of the cancer cell line and salt structure.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Multidisciplinary
Salvatore Marullo, Floriana Petta, Giulia Infurna, Nadka T. T. Dintcheva, Francesca D'Anna
Summary: In this study, supramolecular gels were prepared in deep eutectic solvents (DES) from polysaccharides. The gels exhibited self-healing and load bearing ability, and they were found to be injectable. The gelation process was influenced by the number of hydrogen bond sites on the hydrogen bond donor, and cholinium cations interposed between polysaccharide chains affecting interchain hydrogen bonding. The gel's radical scavenging ability was reduced upon gelation, but when doped with natural antioxidants, the high scavenging ability was preserved. Films prepared from the gels showed stability to sunlight and exposure to water, with the TA-doped film being the most resistant to UV-light and retaining its radical scavenging ability.
Article
Chemistry, Multidisciplinary
Salvatore Marullo, Giuseppe Gallo, Giulia Infurna, Nadka Tz. Dintcheva, Francesca D'Anna
Summary: We prepared and characterized supramolecular ionic liquid gels based on biopolymer mixtures without the need for a cross-linking agent or acid treatment. The gels showed notable properties influenced by the ionic liquid anion. They exhibited higher antioxidant ability and bactericidal activity compared to their individual components. The gel based on a chitosan:chitin mixture in the IL [bmim][Cl] had the fastest killing effect against E. coli, with almost complete eradication of bacterial cells within 30 minutes. We also observed an inverse relationship between the antioxidant and antimicrobial activities of the gels.
Article
Chemistry, Multidisciplinary
Giovanna Raia, Salvatore Marullo, Giuseppe Lazzara, Giuseppe Cavallaro, Sefora Marino, Patrizia Cancemi, Francesca D'Anna
Summary: In this study, aminolysis and alkylation reactions were conducted to obtain organic salt ionic liquids (ILs) from plastic waste poly-(lactic acid) (PLA). The obtained ILs were found to be potential alternative solvents of industrial relevance. Furthermore, the strategy showed feasibility and did not exhibit cytotoxicity towards normal lung fibroblasts.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Salvatore Marullo, Francesca D'Anna
Summary: The occurrence of emerging pollutants in water bodies is a pressing issue of modern society. In this study, supramolecular gels were prepared and characterized, showing high efficiency in removing bisphenol A.
Article
Chemistry, Organic
Paolo Lo Meo, Francesca D'Anna, Michelangelo Gruttadauria, Serena Riela, Renato Noto
Summary: This study investigates the mechanism of formation of 2(3H)-imino-1,3,4-thiadiazoles and addresses methodological issues by performing a competitive reactivity study on a set of diversely substituted substrates using HPLC techniques. The results support the hypothesis that the thiadiazole ring is formed through the attack of the oxidizing Lewis acid metal cation onto the imine-like nitrogen atom of the thiosemicarbazone substrate.
