Article
Chemistry, Physical
Ratan Logdi, Arijit Bag, Ashwani K. Tiwari
Summary: The recent study focused on the reactivity of carbenes with SO2 and NO2, indicating the formation of a thermodynamically stable adduct in the carbene-SO2 reaction and a stable carbene N, N-dioxide derivative in the reaction with NO2. The barrierless processes of carbene S, S-dioxide and carbene N, N-dioxide formation, as well as the dissociation of oxaziridine N-oxide, were also observed.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Engineering, Environmental
Dan Li, Yong Kang
Summary: A novel class of hybrid solvents, mEIP:Tetz, were developed for highly efficient and reversible capture of SO2. The mixtures exhibited improved kinetics for SO2 absorption and exceptionally high solubility. Absorption and desorption mechanisms were proposed based on FTIR and NMR analysis results.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Lingling Peng, Mingzhen Shi, Yi Pan, Zhuoheng Tu, Xingbang Hu, Xiaomin Zhang, Youting Wu
Summary: CO removal is an important topic, but the CO capture performance of reported absorbents is still unsatisfactory. In this study, a series of novel ionic liquids were developed for effective CO absorption and separation, showing excellent CO capture performance and reversible regeneration. The strategy of multi-copper sites provides important guidance for the design of solvents for CO selective separation and storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Vanessa Piacentini, Andrea Le Donne, Stefano Russo, Enrico Bodo
Summary: We report a series of calculations on the mechanism of SO2 chemisorption in amino acid-based ionic liquids. The efficiency of chemical trapping of SO2 by the amino group of the amino acid is evaluated. It is found that SO2 is less reactive than CO2 and the specific amino acid side chain does not play a significant role. The bimolecular absorption processes for SO2 are unlikely to occur, which is different from CO2.
Article
Chemistry, Multidisciplinary
Tengteng Zhou, Yongqi Zhao, Xinxin Xiao, Yixuan Liu, Hongcun Bai, Xingxing Chen, Jinxiao Dou, Jianglong Yu
Summary: In this study, environmentally friendly and high-performance deep eutectic solvents were designed to simultaneously capture SO2 and NO2 from flue gas. The absorption performances and mechanisms were investigated using spectroscopy and simulations. The results showed that the solvents can absorb low concentrations of SO2 and NO2 simultaneously at low temperatures, and they exhibit outstanding regeneration capability.
Article
Chemistry, Multidisciplinary
Hangzhi Wu, Wenjie Xiong, Shuyue Wen, Xiaomin Zhang, Shule Zhang
Summary: Low-viscous homologue-paired liquids (HPLs) are special non-ionic deep eutectic solvents designed for selective separation of SO2 from CO2 and N-2. They exhibit excellent inherent properties, high absorption capacity, fast absorption rate, moderate interaction with SO2, good recyclability, and potential for industrial desulfurization applications.
CHEMICAL COMMUNICATIONS
(2022)
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
Nanoscience & Nanotechnology
Jianing Duan, Ruming Yuan, Haihong Huang, Cui Sun, Jie Lei, Xiangfei Yuan, Jingmin Fan, Zifang Chen, Mingsen Zheng, Quanfeng Dong
Summary: This article introduces a flexible ion-conductive material iMembrane based on geminal dicationic ionic liquids, which exhibits high thermal stability, broad electrochemical stability, and good ionic conductivity, promising to enhance safety and energy density in lithium batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Bingru Wang, Long Lin, Shuhang Ren, Weize Wu
Summary: This study measured the specific heat capacities of six ILs and found that the specific heat capacities of ILs increase with temperature regardless of the presence of absorbed SO2. The specific heat capacity of ILs also increases with the amount of absorbed SO2. Additionally, the length of anionic alkyl side chains in ILs affects the specific heat capacity of SO2 absorption.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Zonghua Wang, Dezhong Yang
Summary: This work reports the high SO2 capture capacity of 2-pyridineethanol and investigates the effects of temperature and pressure on its absorption process. The findings show that 2-pyridineethanol has a high SO2 capacity, low energy cost regeneration process, excellent reversibility, and reacts with SO2 to form a zwitterionic sulfite. These findings are valuable in the design of efficient absorbents for SO2 capture.
CHEMICAL COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Andrea Mezzetta, Luca Guglielmero, Angelica Mero, Giorgio Tofani, Felicia D'Andrea, Christian Silvio Pomelli, Lorenzo Guazzelli
Summary: The thermal and electrical properties of benzimidazole dicationic ionic liquids (BDILs) were investigated, revealing that bistriflimide BDILs are more stable than bromide BDILs. The spacer length plays a role in thermal behavior, and dicationic ILs offer more structural diversity and ease of property tuning compared to monocationic ILs.
Article
Chemistry, Physical
Shanika Abeysooriya, Minjae Lee, Luke A. O'Dell, Jennifer M. Pringle
Summary: This study reports the synthesis and characterization of two new dicationic salts and investigates their physicochemical properties using techniques such as solid-state NMR. The results show that dicationic salts with longer alkyl-side chain exhibit improved transport properties. Further exploration of these organic salts as electrolyte materials was conducted by mixing them with lithium salts, showing an increase in conductivity. Solid-state NMR analysis suggests that lithium and [TFSI](-) ions contribute significantly to the ionic conductivity.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Yulia A. Kondratenko, Olga N. Makovskaya, Dmitrii O. Antuganov, Andrey A. Zolotarev, Valery L. Ugolkov, Michail A. Nadporojskii, Tatyana A. Kochina
Summary: This study synthesized a new series of dicationic protic alkanolammonium ionic liquids (PAAILs) through the interaction of N,N,N',N'-tetrakis(2-hydroxyethyl)ethylenediamine with carboxylic acids. The synthesized PAAILs were characterized and analyzed using various techniques. The conformation of the cations and intermolecular interactions were studied, and the pharmacokinetic parameters and activity in biomedical applications were predicted and evaluated.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Nicole Onishi Feider, Shannon M. Mahurin, Chi-Linh Do-Thanh, Sheng Dai, De-en Jiang
Summary: A dicationic ionic liquid was studied through molecular dynamics simulations to examine its structural and gas separation properties, showing potential for enhanced CO2 interaction and promising application in carbon capture. Comparison between experimental and computational results further analyzed the structural features of the ionic liquid.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Huifang Zhao, Xingping Gu, Tongan Yan, Guopeng Han, Dahuan Liu
Summary: In this study, a new IL/MIL-0.7 composite was designed for efficient capture and recovery of sulfur dioxide from flue gas and natural gas. The composite showed high adsorption capacity for SO2, while excluding carbon dioxide and nitrogen. It also demonstrated excellent selectivity and stability under high temperatures.
Article
Chemistry, Physical
Xin Wang, Yong Kang, Dayun Cui, Jie Li, Dan Li
CATALYSIS COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Xin Wang, Yong Kang, Jie Li, Dan Li
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Chemistry, Multidisciplinary
Dan Li, Yong Kang, Jie Li, Xin Wang
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Engineering, Environmental
Dan Li, Yong Kang
Summary: A novel class of hybrid solvents, mEIP:Tetz, were developed for highly efficient and reversible capture of SO2. The mixtures exhibited improved kinetics for SO2 absorption and exceptionally high solubility. Absorption and desorption mechanisms were proposed based on FTIR and NMR analysis results.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Kai Sheng, Dan Li, Yong Kang
Summary: A series of novel deep eutectic solvents (DESs) composed of equimolar solid ionic compounds were developed for SO2 absorption, exhibiting high absorption capacity and reversibility. The solubilities of SO2 in these DESs were found to be the highest reported values under certain conditions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Dan Li, Cuiping Li
Summary: A type of CO2-binding organic liquids (CO2-BOLs) composed of TMG, Gly, and Gly's amino derivatives were developed for efficient and reversible CO2 capture, exhibiting high gravimetric CO2 solubility. The factors influencing CO2 absorption were investigated, and the recyclability of CO2-BOLs was excellent. The absorption mechanism of CO2-BOLs was explored through spectral analysis, quantum chemical calculation, and thermodynamic analysis, revealing chemisorption and the production of alkyl guanidine carbonates.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Shuzhen Tian, Fujun Wen, Lirong Qian, Cuiping Li, Litian Wang, Dan Li, Sheng Xu, Hongji Li, Mingji Li
Summary: This study successfully prepared a surface acoustic wave (SAW) relative humidity (RH) sensor based on a nanodiamond-chitosan (ND-CS) composite film. The sensor exhibits good linear response, low humidity hysteresis, short response and recovery time. It also shows excellent repeatability, long-term stability, temperature stability, and selectivity.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Chemical
Yunfei Yu, Xue Yang, Chenchen Zhang, Jie Chen, Wei Lin, Jianqiang Meng
Summary: This study reports an environmentally friendly and simple approach for preparing double-network (DN) ion gel membranes with high strength and excellent gas separation performance. By optimizing crosslinking density, mass ratio, and the type and content of free ionic liquid, the mechanical and gas separation properties of the DN membrane are improved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Si-qi Jiang, Qiang Gao, Xi-guang Li, Chao-zhu Deng, Jun Qiu, Xiang-nan Zhu
Summary: A dual-strengthening pretreatment method is proposed to remove PVDF more efficiently and enhance the leaching of LiCoO2. Experimental results show that dual-strengthening pretreatment can effectively remove PVDF and significantly improve the leaching efficiency compared to single pretreatment methods.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zengchi Hu, Xiaoyu Wang, Xiaohui Zhang, Xue Li, Jiangbin Xia
Summary: The rapid fabrication of high-performance composite membranes based on CMPs using simple and low-cost methods is challenging. In this study, three CMPs-based composite membranes were rapidly fabricated with adjustable size using unidirectional diffusion synthesis. The microstructural design enhanced the rejection rates of the membranes and they showed strong hydrolytic resistance, thermal stability, and acid-base resistance. Electrostatic adsorption and the adjustable microstructures significantly varied the repellence of the membranes to different charged molecules.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Farzaneh Rouhani, Matineh Ayedi, Nasser Safari
Summary: Introducing defects into porous metal-organic frameworks is important for improving their adsorption performance. Quasi-MOFs, an underutilized variant of large-scale, fundamentally deficient MOFs, have been found to have substantial amounts of unsaturated metal sites to offset the drawbacks of MOFs. In this study, a quasi-MOF was produced using a water-stable MOF and demonstrated significantly improved phosphate adsorption capability due to the presence of defect sites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Valentin Reungoat, Morad Chadni, Louis M. M. Mouterde, Fanny Brunissen, Florent Allais, Helene Ducatel, Irina Ioannou
Summary: This study focuses on the recovery of sinapic acid using liquid-liquid extraction assisted by a hollow fiber membrane contactor from an aqueous feed obtained through the hydrolysis of mustard bran. The screening of solvents of different chemical nature showed that all tested solvents had an extraction efficiency of more than 80% for pH < 5. Four solvents were selected for use in the hollow fiber membrane contactor, and the volatile solvents showed higher mass transfer coefficients compared to non-volatile solvents. The extraction efficiency was intensified by increasing the initial concentration of sinapic acid and the feed-to-solvent ratio. CPME was found to have optimal recovery efficiency at a phase ratio of 8:1, yielding 0.9 g of sinapic acid per liter of CPME used.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Takahiro Sakamoto, Takafumi Hanada, Hayate Sato, Mayu Kamisono, Masahiro Goto
Summary: The emergence of the battery society has led to a high demand for battery metals, resulting in a strain on their supply. This study introduces a novel technique using a hydrophobic deep eutectic solvent (DES) for leaching and recovering battery metals from low-grade nickel laterite ores. The DES enables selective leaching and recovery of the metals, offering a promising pathway for the extraction of critical battery metals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Rongrong He, Jiarui Chen, Chunyao Zhang, Dan Lu, Lin Zhang, Tao He
Summary: Researcher has developed a method to quantify the charge density in nanofiltration (NF) membrane separation layer and applied it in NF membranes that can separate Mg2+ and Li+. The results showed that overcompensated amine groups played a major role, and there was a linear relationship between charge density and coating bi-layers or PAH layers.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Zhijian Zhang, Min Chen, Zhe Lin, Zhichao Yang, Yafeng Du, Zhihui Chen, Zhenhao Yang, Kongyin Zhao, Ligang Lin
Summary: Membrane technology plays an important role in molecular/ion separation processes, but faces challenges such as membrane fouling. This study introduces a new ion-crosslinking method to fabricate copper alginate hydrogel membranes with improved mechanical strength and antimicrobial capabilities. The membranes exhibit excellent separation performance and enhanced long-term molecule/ion separation through improved anti-swelling properties. Molecular dynamics simulations and life cycle analysis highlight the pore structure and environmental friendliness of the hydrogel membranes. These findings provide valuable insights for developing sustainable hydrogel membranes with stable performance and high separation efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Dongmei Liu, Aiying Guo, Yanling Qi, Zhixin Ji, Hongjuan Li, Zhiwei Zhang, Xinyue Zhang, Kunze Wu, Aijun Cai
Summary: In this study, a stable magnetic Mg/Mn-layered double oxide-doped biochar composite (MgMnLDO-MBC) was prepared and successfully used for the removal of antibiotics and bacteria from wastewater. The composite exhibited enhanced surface areas, adsorption sites, and free radicals, leading to improved catalytic activity. The effects of different factors on the removal efficiency were evaluated, and the composite showed good reusability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Feng Wang, Zhaoyong Bian, Yaru Zhang, Wenchao Yu, Qiang Zhang, Hui Wang
Summary: In this study, a nanofibrous layered structure of Ff-Ti3C2Tx-Co3O4 was prepared by self-assembling nanofibrous Co3O4 with lamellar fluorine-free MXene (Ff-Ti3C2Tx). The Ff-Ti3C2Tx-Co3O4 exhibited excellent catalytic activity for degradation, resistant to ionic interference, and maintained high removal efficiency of sulfamethoxazole (SMX) in municipal wastewater. The rapid SMX degradation involved fast electron transfer in redox cycles with PMS and the generation of 1O2 via PMS ->center dot O2 -> 1O2. This work provides new insights into antibiotic degradation mechanisms and electron transfer based on PMS activation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Weipeng He, Jiacheng Luo, Yujie Wu, Tianhao Luo, Chen Tang
Summary: This study comparatively evaluated the role of cationic, anionic, and nonionic polyacrylamides (PAMs) in ballasted flocculation of clay suspensions under different aluminum sulfate (AS) coagulant dosages. The selection of PAMs and AS dosage had a significant influence on the size and shear resistance of ballasted floc aggregates.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Lixian Wang, Lizhi Zhao, Didi Si, Zhixin Li, Huiqin An, Hui Ye, Qingping Xin, Hong Li, Yuzhong Zhang
Summary: Metalloporphyrin-based nanozymes integrated with poly (vinylidene fluoride) membrane show high catalytic activity and reusability for the decolorization of Congo Red dye in continuous flow process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Yongfei Ma, Chenyu Zeng, Yongzhen Ding, Jiayi Tang, Ondrej Masek, Zhikang Deng, Rui Mu, Zulin Zhang
Summary: In this study, sludge-derived biochar (SBC) was functionalized with various iron salts to enhance its adsorption ability for sulfamethoxazole (SMX) and magnetic collection performance. Ball milling was further employed to treat the optimal iron salt functionalized SBC (MSBC), resulting in ball milled SBC (BMSBC) with improved adsorption performance for SMX. The dominant driving mechanism for SMX adsorption onto BMSBC was confirmed to be multiple physicochemical forces, including 7C-7C conjugation, pore filling, H-bonding, Fe-O complexation, and electrostatic interactions. BMSBC exhibited favorable adsorption ability for SMX in actual waters and could be easily collected within 1 min due to its magnetic sensitivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Jinglin Tan, Xiaohui Mao, Wenjihao Hu, Hongbo Zeng
Summary: This study investigates the influence of PDMS chain architectures on surface properties and reveals that PDMS coatings with looped structures exhibit superior hydrophobicity, self-cleaning, and water sliding compared to coatings with linear structures. Additionally, both looped and linear PDMS coated stainless steel mesh/polyester fibers show efficient separation of oil/water mixture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Chemical
Wei-Liang Chen, Chih-Chia Cheng, Chien-Hsing Lu, Jem-Kun Chen
Summary: This study designs a novel sandwich-structured capacitor that reduces the absorption time of pollutants using dielectrophoresis force. By coating graphene oxide on polystyrene microspheres as adsorbents and encapsulating them within the capacitor, the adsorption rate is significantly enhanced. Additionally, frequency manipulation allows for the recycling of adsorbents and concentration of dyes, minimizing secondary pollution.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)