Article
Chemistry, Physical
Ke Wu, Shaoxin Feng, Alain Hedoux, Evgenyi Shalaev
Summary: In this study, the properties of glycerol-water mixtures were investigated using FTIR spectroscopy and molecular dynamics simulation. The results showed that the HOH bending band in the FTIR spectra was not significantly affected by water content up to approximately 12 wt%, but exhibited a red shift as water content increased. Molecular dynamics simulations revealed a decrease in non-clustered water molecules and an increase in small water clusters with higher water concentration. Large water clusters appeared at a specific range of water content, while at 25 wt% water, small water clusters disappeared and all water molecules belonged to a continuous water domain.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Multidisciplinary
Chuanwei Miao, Lacey Reid, Y. Wadood Hamad
Summary: Portable and flexible electronics require lightweight, sustainable, durable, and low-cost piezoelectric materials. The study explores inexpensive organic materials and bio-derived materials as promising options. Research on the commercialization of ferroelectric polymers like PVDF, as well as understanding the electromechanical properties of bio-derived materials are important for future developments.
APPLIED MATERIALS TODAY
(2021)
Article
Chemistry, Multidisciplinary
Weixing Li, Maria Mar Quesada-Moreno, Pablo Pinacho, Melanie Schnell
Summary: The study examines the structures of complexes of benzophenone microsolvated with water molecules using broadband rotational spectroscopy and molecular jet in cold conditions. Water molecules are found to dock sideways on benzophenone and move above one of the aromatic rings as the water cluster grows to a trimer. The analysis reveals a dilemma in identifying the global minimum between open loop and closed loop arrangements, which is resolved with zero-point vibrational energy correction. An OH...pi bond and a Burgi-Dunitz interaction are present between benzophenone and the water trimer in the cluster, highlighting the delicate balance between water-water and water-solute interactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Wenhao Sun, Melanie Schnell
Summary: Broadband rotational spectroscopy was used to investigate the geometries of 3-methyl-3-oxetanemethanol and its complexes with water molecules. The study found that the conformation of 3-methyl-3-oxetanemethanol is influenced by microsolvation effects, and the hydrogen-bond arrangements in the hydrate complexes evolve with increasing water molecules.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Song Wang, Daliang Zhang, Xiaohua Ma, Jiucong Liu, Yanli Chen, Yunfeng Zhao, Yu Han
Summary: By modifying a commercial ionic membrane with carbon dots, researchers were able to increase the purity of hydrogen produced from electrolysis of water to 99.98%, meeting the standards required for hydrogen fuel cells.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Tatiana Starciuc, Yannick Guinet, Alain Hedoux, Evgenyi Shalaev
Summary: This study investigated glycerol-water mixtures using Raman spectroscopy and identified three water content regions based on trends in hydrogen bond strength and the cage effect. It is hypothesized that water content exceeding WT1 facilitates proton transfer, while W12 marks the formation of large water clusters that can form stable nuclei of hexagonal ice. These findings may lead to the development of novel pharmaceuticals and vaccines, and contribute to a better understanding of cryo- and lyo-protection mechanisms for proteins, viruses, and cells.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Peiran Wei, Emily B. Pentzer
Summary: The distribution/topology of hydrogen-bonding clusters in dry polymer networks can enhance both stiffness and extensibility, overcoming the limitation of previous approaches. This new design principle significantly advances the understanding of material property tailoring and is directly relevant to synthetic elastomers.
Article
Nanoscience & Nanotechnology
Yujia Hou, Yan Peng, Peng Li, Qi Wu, Junqi Zhang, Weihang Li, Guangwu Zhou, Jinrong Wu
Summary: Inspired by the hierarchical structure of mussel byssal threads, we have synthesized high-damping supramolecular elastomers (HDEs) that exhibit excellent sound absorption, vibration damping, toughness, tensile strength, and self-healing ability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Environmental Sciences
Yifan Liu, Nana Li, Cong Du, Yue Wang, Kunyu He, Hao Zheng, Zhijing Xue, Qin Chen, Xiaoyun Li
Summary: This study investigated the sorption/desorption behaviors of three pharmaceutical contaminants (PCs) on three Oxygen-rich nanoparticles. It was found that different hydrogen bonds, especially charge-assisted hydrogen bonds, played a crucial role in the sorption and desorption of PCs on the nanomaterials. The stronger charge-assisted hydrogen bonds caused significant desorption hysteresis and better immobilization of PCs on the nanomaterials.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Physical
Hui Xing, Yong Yang, Xing Nie, Tianlv Xu, Steven R. Kirk, Samantha Jenkins
Summary: This study analyzes the differences in chemical coupling between (H2O)4 and (H2O)6, explaining the stronger hydrogen bonds in (H2O)4. By investigating the nature of two-way donation between covalent and hydrogen bonds and comparing different methods, the success of using Ehrenfest Force in determining the chemical coupling underlying the unusual strength of hydrogen bonds in water is demonstrated.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Medicine, Research & Experimental
Degong Yang, Chao Liu, Huiqing Piao, Peng Quan, Liang Fang
Summary: This study aimed to increase drug loading in pressure-sensitive adhesive by utilizing a novel drug-ionic liquid strategy and explored the underlying molecular mechanism. Results showed that the synergistic effect of strong ionic hydrogen bonding and normal hydrogen bonding led to a significant increase in drug loading and high drug release percentage even at high drug loading.
MOLECULAR PHARMACEUTICS
(2021)
Article
Chemistry, Physical
Riju Karmakar, Subhojyoti Sinha, Amit Kumar Das, Bilwadal Dutta, Subhamay Pramanik, Probodh Kumar Kuiri, Ajit Kumar Meikap
Summary: In this article, the water molecules mediated charge transportation kinetics in Polyvinyl alcohol (PVA)-Cobalt Oxide (CO3O4) flexible nanocomposite films were explored. The comprehension of surface and interface chemistry is crucial for understanding the chemical interactions at the aqueous hydrophilic PVA-Co3O4 interface. The dissociation of water molecules following the fragmentation of inter/intramolecular dangling bonds is correlated with the water diffusion kinetics and saturation in the sorption capacity of water-swollen PVA-Co3O4 nanocomposite films. The trap-states development due to the interfacial charge accumulation, after absorption of water molecules, are favourable for the trap-assisted space charge limited current conduction (TA-SCLC) mechanism and increase current density.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Anna Joselle Lomboy, Robert Q. Topper
Summary: This study investigates the structural studies of ammonium halide nanoparticles, focusing on small ammonium fluoride clusters with weak acidity and strong hydrogen-bonding ability. Different types of clusters exhibit complex behavior in the transition from ordinary hydrogen bonding to shared-proton hydrogen bonds and complete proton transfers. The size-dependent trends in intermolecular forces are explored and provide insight into the formation of anhydrous ammonium halide clusters.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Wei Fang, Kastur M. Meyer Auf Der Heide, Christopher Zaum, Angelos Michaelides, Karina Morgenstern
Summary: The study observed the diffusion of water trimers on a copper surface at unexpectedly low temperatures (<10 K) using scanning tunneling microscopy, revealing a unique diffusion process involving structural rearrangements. Density functional theory calculations showed that the diffusion of hydrogen-bonded clusters can occur at exceedingly low temperatures without the need for hydrogen bond breakage or exchange, impacting the Ostwald ripening of ice nanoclusters and hydrogen bonded clusters.
Article
Nanoscience & Nanotechnology
Guangda Zhu, Yi Hou, Junfeng Xiang, Jian Xu, Ning Zhao
Summary: Dynamic polymers cross-linked by ionic bonding and hydrogen bonding are reported for digital light processing (DLP) 3D printing. These polymers endow printed objects with excellent self-healing and recycling ability, and the mechanical properties can be easily tailored for practical applications. The dynamic cross-linking allows for various assembling categories and functional devices with a self-healing capacity to be realized.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)