Review
Polymer Science
Xiuyu Zhao, Yao Chen, Zhifang Wang, Zhenjie Zhang
Summary: Researchers have shown extensive interest in covalent organic frameworks (COFs), which are a new class of crystalline porous polymers with highly ordered porous structures and excellent chemical stability. COFs have great potential for ion conduction applications, especially in proton conduction, lithium-ion conduction, and anion conduction.
Article
Chemistry, Physical
Habin Park, Paul A. Kohl
Summary: Low-temperature hydrogen generation using anion exchange membrane electrolysis (AEMEL) combines the advantages of liquid water alkaline electrolysis and proton exchange membrane electrolysis. The presence of alkali cations in the anolyte plays a crucial role in improving cathode conductivity and kinetics during electrolysis.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Amit Pandey, S. Hashmi, G. Salunkhe, Velavan Kathirvelu, Keisham S. Singh, Rohit Singh Chauhan, Arijit Sengupta
Summary: A novel diamide ligand, 5-bromo-N1, N3-diisopropylisophthalamide, was synthesized and characterized, and its extraction mechanism with uranyl ions in various ionic liquid families was studied. Changing the ionic liquid system can achieve different extraction mechanisms, predominantly influenced by the cations of the ionic liquids. The study found that the back extraction of uranyl ions from the ionic liquids is better with sodium carbonate compared to EDTA and oxalic acid, but the efficacy varies among different ionic liquid systems.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Hynek Benes, Magdalena Konefal, Sonia Bujok, Ondrej Mrozek, Ewa Pavlova, Darina Smrzova, Petra Ecorchard
Summary: Intercalation of ionic liquid anions into layered double hydroxides enables the microwave-accelerated ring-opening polymerization of cyclic esters, leading to the synthesis of biodegradable polyester/LDH nanocomposites. The intercalation efficiency of IL anions was found to be highest in Ca2+/Al3+ LDHs prepared using a two-step coprecipitation/anion exchange method, resulting in the successful catalysis of e-caprolactone polymerization and the formation of delaminated and exfoliated LDH nanoparticles.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Yan Zhang, Hong Zhong, Zhang Lin
Summary: A series of imidazolium-based ionic polymers were successfully synthesized and characterized, with ImIP4Br showing the highest removal rate for Cr(VI) in aqueous solution. ImIP4Br demonstrated outstanding enrichment and regenerative abilities, making it promising for capture and separation of Cr(VI) from contaminated water systems, even in the presence of competitive ions.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Chemical
Jianwei Zhang, Ronghao Liu, Xiaoxia Liu, Jun Li, Ruihui Wu, Yanzhao Yang
Summary: A strongly hydrophobic DABCO-based ionic liquid was synthesized for the extraction of Rh(III) from high-concentration hydrochloric acid medium. The optimal conditions yielded an extraction efficiency of 81.54%. A quadratic model equation was established for calculating the required amount of the ionic liquid at different HCl concentrations. The extraction mechanism was identified as an anion exchange mechanism.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Ming Yi, Mi Wang, Yan Wang, Yanlei Wang, Jian Chang, Atefeh Khorsand Kheirabad, Hongyan He, Jiayin Yuan, Miao Zhang
Summary: The study successfully used poly(ionic liquid)s as hydrophilicity modifiers to construct MXene-based lamellar membranes with tunable hydrophilicity. By simple anion exchange, the membrane's permeance and rejection were significantly improved. This method opens up new avenues for building high-performance 2D material-based membranes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Polymer Science
Qian Wang, Lei Huang, Zimo Wang, Jifu Zheng, Qifeng Zhang, Guorui Qin, Shenghai Li, Suobo Zhang
Summary: This study obtained solution-tractable anion-selective membranes with intrinsic porous and highly ionic conductive capabilities by a convenient route. The membranes demonstrated good size stability and stability under alkaline conditions, making them suitable for the development of anion exchange membrane fuel cells.
Review
Engineering, Environmental
Bowen Yang, Zhang Cunman
Summary: Hydrogen is a promising energy carrier for decarbonization. Anion exchange membrane (AEM) is a critical component for AEMWE and AEMFC, and understanding its molecular structure, physical property, and chemical micro-environment is essential for rational design and development of AEM technology. This review comprehensively summarizes the wide scope of AEM category, investigates AEM ionic conductivity and durability, and highlights the research progress and bottleneck issues in the AEM community.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yi-cun Zhou, Rui-Ying Bao, Zhengying Liu, Ming-Bo Yang, Wei Yang
Summary: A polyketone resin-based anion exchange membrane was synthesized and processed using electrospinning and hot pressing techniques, demonstrating high ionic conductivity and mechanical properties. The electrospun membrane shows potential in various electrochemical devices under alkaline conditions.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Chemical
M. J. Jacinto, Alexandra Wagner, Ines M. Sa, David J. S. Patinha, Isabel M. Marrucho, Joao Goncalves, Richard C. Willson, A. M. Azevedo, M. R. Aires-Barros
Summary: M13 bacteriophage is a key tool in phage display applications and a potential antibacterial therapeutic agent. Traditional phage purification methods have limitations, leading to the exploration of electrostatic-based separation processes using polymeric ionic liquids (PIL). This study demonstrated a successful chromatographic operation mode for M13 purification with high yield and purity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Zixuan Wang, Kai Chen, Jiahao Han, Xiyuan Zhang, Bowen Wang, Qing Du, Kui Jiao
Summary: The ionic conductivity of anion exchange membranes (AEMs) plays a crucial role in the performance of anion exchange membrane fuel cells (AEMFCs), which is highly influenced by the level of hydration of the membrane. This study quantitatively characterizes the effects of water activity and temperature on water uptake, equilibrium water content, and ionic conductivity of three high-performance AEMs (Alkymer, Orion, and Pention) through designed experiments. The findings provide solid guidelines and support for future experimental characterization and water and thermal management analyses of AEMFCs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Spectroscopy
Qounsar Jan, Shazia Nabi, Feroz Ahmad Sofi, Mohsin Ahmad Bhat
Summary: In this study, a novel analytical method based on selective anion exchange induced phase transformations of CsPbBr3 perovskite crystallites is reported. By utilizing the photoluminescence characteristics of CsPbBr3 perovskite nanoplatelets, the detection and quantification of chloride ions in room temperature ionic liquids and arsenic in water samples are achieved. This method offers simplicity, speed, and cost-effectiveness.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Physical
Dengji Zhang, Shicheng Xu, Ruiying Wan, Yunfei Yang, Ronghuan He
Summary: Composite anion exchange membranes with superior conductivity are developed by cross-linking QPPO with NGO, showing low water uptake and swelling ratio, high ion conductivity and alkaline stability. The proposed composite membrane exhibits a hydroxide conductivity of 123 mS cm(-1) and retains a conductivity of 83 mS cm(-1) after immersion in KOH solution for 384 hours, outperforming pristine QPPO membrane.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Fei Xu, Yanbo Chen, Xiaoting Cao, Jing Li, Bencai Lin, Ningyi Yuan, Jianning Ding
Summary: In this study, a series of comb-shaped polyfluorene copolymers with different lengths of side chains were developed using superacid-catalyzed Friedel-Grafts polycondensation. The direct introduction of comb-shaped alkyl side chains caused micro-phase separation in the AEMs, and PHPFP-QA with the longest side chain exhibited the highest ionic conductivity and power density. The polyfluorene-based AEMs showed excellent alkaline stability due to stable piperidinium cations and ether-free backbones.
JOURNAL OF POWER SOURCES
(2022)
Article
Thermodynamics
Elzbieta Kociolek-Balawejder, Ewa Stanislawska, Igor Mucha
Summary: The presence of copper compounds in anion exchangers affects the thermal decomposition process, leading to reduction of Cu(II) and increased formation of carbonizate under nitrogen atmosphere. This study highlights the importance of process conditions, deposit type, and anion exchanger structure in influencing the thermal transformations and inorganic phase composition.
THERMOCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Elzbieta Kociolek-Balawejder, Ewa Stanislawska, Igor Mucha
Summary: Hybrid ion exchangers (HIXs) with fine Cu2O and Cu-0 particles were analyzed thermally to determine their hygroscopic water content and the effect of the copper atom's oxidation state in the deposit on thermal properties. The study found that Cu-0 was more water repellent than Cu2O, and the oxidation state of the copper atom influenced the amount of forming char in the composite materials. Additionally, under different atmospheres, the particles transformed into different phases, indicating the inorganic phase's participation in char formation and transformation during pyrolysis.
Article
Chemistry, Multidisciplinary
Elzbieta Kociolek-Balawejder, Ewa Stanislawska, Irena Jacukowicz-Sobala, Marek Jasiorski
Summary: The synthesis of copper compounds with polymeric adsorbents showed that Cu2O and CuO significantly reduced the porosity of the obtained composites. Samples dried thermally lost porosity and increased bulk density, while freeze-dried samples retained typical macroporous characteristics. This reduction in porosity was mainly caused by the surface morphology and agglomeration tendency of Cu2O and CuO particles.
JOURNAL OF NANOPARTICLE RESEARCH
(2021)
Article
Environmental Sciences
Daniel Ocinski, Joanna Augustynowicz, Konrad Wolowski, Piotr Mazur, Ewa Sitek, Jerzy Raczyk
Summary: The study identified three species of algae likely responsible for effective bioremediation of highly Cr(VI)-polluted habitats, showing characteristics of high chromium accumulation and detoxification mechanisms involving reduction and biosorption. With some modifications, the studied reservoir could potentially serve as a cost-effective bioreactor for reducing chromium concentration to desired levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Polymer Science
Elzbieta Kociolek-Balawejder, Ewa Stanislawska, Irena Jacukowicz-Sobala, Igor Mucha
Summary: The research investigated the impact of cupric deposits on the thermal decomposition of carboxylic cation exchangers, revealing a shift towards lower temperatures in air and reduction to metallic copper in N-2. Unique composite materials enriched in carbonaceous matter were obtained as a result.
Article
Engineering, Environmental
Irena Jacukowicz-Sobala, Agnieszka Ciechanowska, Elzbieta Kociolek-Balawejder, Anna Gibas, Adrian Zakrzewski
Summary: The purpose of this study was to investigate the photocatalytic activity and mechanism of Cu2O-supported anion exchangers in water purification processes. The composite material exhibited complex activity towards arsenic (III) species, involving photocatalytic oxidation, chemical oxidation, and photochemical oxidation. Instrumental analyses such as X-ray photoelectron spectroscopy, and FTIR and Raman spectroscopy supported the results from chemical analyses.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Anna Gibas, Agnieszka Baszczuk, Marek Jasiorski, Marcin Winnicki, Daniel Ocinski
Summary: This study presents a facile approach to deposit coatings using low-pressure cold spray technique from amorphous titanium dioxide. By introducing defects and active groups, the activity of the coatings can be preserved, leading to effective photocatalytic degradation under visible light.
Article
Chemistry, Applied
El zbieta Kociolek-Balawejder, Anna Gibas, Agnieszka Baszczuk, Marek Jasiorski, Irena Jacukowicz-Sobala
Summary: The study demonstrates the modification of anion exchangers to obtain a reactive organic polymer containing dispersed CuxS. The distribution of cuprite or tenorite within the polymeric matrix and the porous structure of the anion exchanger determine the content of CuxS. The sulphidation process converts Cu2O into CuS more efficiently and selectively compared to CuO, and the morphology of the resulting covellite particles is influenced by the porous structure of the anion exchanger.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Review
Polymer Science
Elzbieta Kociolek-Balawejder, Ewa Stanislawska, Igor Mucha, Daniel Ocinski, Irena Jacukowicz-Sobala
Summary: This study synthesized composites for water purification by dispersing submicron copper-containing particles in a strongly basic anion exchanger matrix. The host materials alone exhibited an affinity to anionic water contaminants and antimicrobial properties. The addition of various copper compounds enhanced these properties and demonstrated new properties. The unconventional synthesis methods resulted in the creation of a new group of hybrid ion exchangers containing copper.
Article
Agricultural Engineering
Daniel Ocinski, Irena Jacukowicz-Sobala, Joanna Augustynowicz, Konrad Wolowski, Danilo A. Cantero, Juan Garcia-Serna, Hanna Pinkowska, Rafa l Przejczowski
Summary: This study aims to observe and select chromium-resistant algal communities for their application in wastewater treatment and biomass conversion. The results showed that Cladophora spp. was chosen as the optimal choice for the chromium bioremediation system and biomass conversion project.
BIORESOURCE TECHNOLOGY
(2023)
