Article
Engineering, Chemical
Yang Zhang, Siru Zhou, Zhenglei Li, Haoquan Zhang, Meng Zhang, Jun Wang, Lingling Chen, Hongwei Zhang
Summary: This study explored the fate of Pluronic copolymers with different molecular architectures in membrane matrix during casting PSF UF membranes. The results showed that the increment of pore radius in passive solute sieving experiments was positively correlated with the degree of polymerization (DP) of EO segments within the corresponding additive.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Bo Niu, Weiwen Xin, Yongchao Qian, Xiang-Yu Kong, Lei Jiang, Liping Wen
Summary: A mixed matrix membrane composed of COF-300 and polystyrene shows ion sieving performance, with selectivity of 31.5 for K+/Li+ and 14.7 for Mg2+/Li+, which is dependent on the pore size and functional groups of COF-300.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Hui Cui, Yingxiang Ye, Ruibiao Lin, Yanshu Shi, Zeid A. Alothman, Osamah Alduhaish, Bin Wang, Jian Zhang, Banglin Chen
Summary: A novel microporous indium-based MOF material, UTSA-22, with unique 3-way rod-shaped secondary building units (SBUs) was reported, demonstrating high methane and hydrogen storage capacities.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Engineering, Chemical
Bingbing Yuan, Siheng Zhao, Shaojie Xu, Ning Wang, Ping Hu, Kuo Chen, Juhui Jiang, Jiabao Cui, Xiaozhuan Zhang, Meng You, Q. Jason Niu
Summary: The fabrication of an aliphatic PA nanofilm with ordered nanostripe using a novel monomer CPTC was demonstrated, resulting in improved cation sieving selectivity and water flux performance.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Geological
Koteswaraarao Jadda, Ramakrishna Bag
Summary: The study examined the fabric evaluation of monovalent and divalent Indian bentonites under different suctions and consolidation pressures, highlighting the significant influence of consolidation pressure on pore structure and morphology.
ENGINEERING GEOLOGY
(2022)
Article
Chemistry, Physical
James N. Burrow, J. Ehren Eichler, Yu Wang, David C. Calabro, C. Buddie Mullins
Summary: This study comprehensively screened the CO2 and N-2 adsorption performance of nitrogen-rich porous carbons and found that the N content and textural properties have different impacts on CO2 and N-2 adsorption. Increasing the N content can tune the selectivity and carbon capture performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Shengjun Du, Baolin Huang, Lin Zhu, Ying Wu, Jiawu Huang, Zhong Li, Hao Yu, Jing Xiao
Summary: This study presents a systematic pore-engineering approach to optimize the adsorptive separation of propylene/propane. It was found that carbon microspheres with moderate pore sizes, such as GC-190, exhibited outstanding selectivity and diffusion kinetics, while those with smaller pore sizes, like GC-230, showed slower diffusion rates for propylene. DFT simulation confirmed the significantly reduced diffusion energy barrier with increased pore size.
Article
Biochemical Research Methods
Sung Hee Ko, Pyeong Jun Park, Jongyoon Han
Summary: In this paper, a rigorous theoretical and experimental study on macromolecule sieving in a slanted nanofilter array was presented. The relationship between sieving conditions and efficiency as well as the hindrance effects on sieving were detailed. This study provides insights into designing a slanted nanofilter array for specific applications and understanding sieving principles in the nanofilter array.
Article
Energy & Fuels
Jiaxun Liu, Junfang Ma, Xiumin Jiang, Xue Jiang
Summary: The accurate description of complex multi-scale pore structures in coal is crucial for efficient coal utilization. This study focuses on the characterization of macropore geometry and topology in superfine pulverized coal using mercury intrusion porosimetry. The results show that pore geometry and topology have a significant impact on the permeability and compressibility of coal particles, providing valuable insights for understanding mass and heat transfer mechanisms and developing new clean coal utilization technologies.
Article
Chemistry, Physical
Jing Xia, Yanxin Gao, Gang Yu
Summary: Three zirconium-based metal-organic frameworks, UiO-66, NU-1000, and MOF-525, demonstrated excellent adsorption performance for tetracycline removal. The adsorption kinetics were best described by the pseudo-second-order model, with equilibrium rapidly reached within 40 minutes on UiO-66 and NU-1000, and within 120 minutes on MOF-525. The Sips model provided the best fit for the adsorption isotherms, with high maximum Sips adsorption capacities reported for all three MOFs. The pi-pi interaction was found to play a crucial role in the adsorption process.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Xuze Pan, Xuezhen Si, Xiaoying Zhang, Qingxia Yao, Yunwu Li, Wenzeng Duan, Yi Qiu, Jie Su, Xianqiang Huang
Summary: A stable and porous titanium metal-organic framework (Ti-MOF; LCU-402) was synthesized by combining a tetranuclear titanium-calcium oxide cluster and a tritopic benzene(tris)benzoic (BTB) ligand. LCU-402 exhibited remarkable stability and permanent porosity for the adsorption of CO2, CH4, C2H2, C2H4, and C2H6 gases. Furthermore, LCU-402 acted as a heterogeneous catalyst for the conversion of CO2 into organic carbonate molecules through cycloaddition reactions with epoxides under a simulated flue atmosphere, suggesting its potential for practical applications. The identification of a persistent titanium-oxo building unit is expected to accelerate the development of new porous Ti-MOF materials.
DALTON TRANSACTIONS
(2023)
Article
Polymer Science
Max Meirow, Erik Luijten
Summary: The control of product distribution in the catalytic cleavage of plastic waste through tuning the pore diameter has been demonstrated. This knowledge is crucial for future synthetic improvements.
Article
Environmental Sciences
Behzad Ghanbarian, Misagh Esmaeilpour, Robert M. Ziff, Muhammad Sahimi
Summary: The issue of scaling in subsurface hydrology and related disciplines has been long-standing. Experimental data and simulations show inconsistent results on the effect of length scale on permeability. Finite-size scaling analysis proves to be a powerful approach to address the impact of length scale on permeability, showing different trends in permeability with scale in different pore networks.
WATER RESOURCES RESEARCH
(2021)
Article
Engineering, Chemical
Jinlong He, Tom Arbaugh, Danh Nguyen, Weikang Xian, Eric M. V. Hoek, Jeffrey R. McCutcheon, Ying Li
Summary: Using non-equilibrium molecular simulations, this study explores the relationships between synthesis, atomic-scale transport mechanism, and separation performance for 3D-printed polyamide membranes. The results show that membrane thickness affects water diffusion, swelling ratio, water flux, and water permeance, with thicker membranes exhibiting lower permeability. The critical membrane thickness for efficient water transport is identified as 15 nm. The study also highlights the importance of pore distribution and membrane compaction in reverse osmosis.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Xufei Li, Baoyou Yan, Weiqiu Huang, Lipei Fu, Xianhang Sun, Aihua Lv
Summary: Fine separation of mixtures is crucial in the petrochemical industry, with MOF materials showing promise in high-efficiency separations due to their controllable pore structures and adjustable compositions. Studies on the crystals and pore parameters of MOF + materials have been sorted out and summarized, with future research trends also proposed.
ACTA CHIMICA SINICA
(2021)
Article
Engineering, Chemical
Sylwester Furmaniak, Piotr A. Gauden, Andrzej Patrykiejew, Grzegorz Szymanski, Radoslaw Miskiewicz, Piotr Kowalczyk
Summary: This study presented the results of reactive Monte Carlo studies on the influence of oxygen surface groups on the equilibria of reactions in pores of activated carbons. It was found that oxidation of carbon surface significantly increases the amount of formed product, especially when the product is quite polar. Additionally, a rapid non-linear increase in the product amount in the pores is observed when the polarity of the product exceeds a certain value.
CHEMICAL ENGINEERING COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Sylwester Furmaniak, Piotr A. Gauden, Maria Lezanska, Radoslaw Miskiewicz, Anna Blajet-Kosicka, Piotr Kowalczyk
Summary: The fpv-GAB adsorption isotherm model provides a simple way to estimate pore diameter by comparing the volumes of monolayer and multilayer adsorption spaces. It is a convenient tool for comparing pore sizes among different samples.
Article
Chemistry, Physical
Paulina Bolibok, Bartosz Szymczak, Katarzyna Roszek, Artur P. Terzyk, Marek Wisniewski
Summary: A new method of nanographene oxide (n-GO) formation using ultrasonication in dimethyl sulfoxide solution allows control over sheet size, maintaining oxygen functionalities and biocompatibility, with increased bioactivity compared to graphene oxide (GO).
Article
Chemistry, Physical
Wojciech Zieba, Joanna Czarnecka, Tomasz Rusak, Monika Zieba, Artur P. Terzyk
Summary: The study presents the cytotoxicity of single-walled carbon nanohorn (SWCNH) oxidized materials on A549 and HDF cell lines, as well as the hemocompatibility on human and porcine blood samples. Results show correlation between specific surface area of materials and platelet aggregation, and the I-D/I-G ratio from Raman spectra with hemoglobin release from erythrocytes.
Article
Nanoscience & Nanotechnology
Emil Korczeniewski, Pawel Bryk, Stanislaw Koter, Piotr Kowalczyk, Wojciech Kujawski, Joanna Kujawa, Artur P. Terzyk
Summary: This study investigated the wetting properties of high purity (111) copper surface, showing the relationship between surface roughness and water contact angle. It was found that surface characteristics of copper affected water droplet evaporation and freezing process. Additionally, the presence of surface hydrocarbons on copper was shown to strongly influence the wetting behavior.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Joanna Kujawa, Monika Zieba, Wojciech Zieba, Samer Al-Gharabli, Wojciech Kujawski, Artur P. Terzyk
Summary: Novel durable, hybrid separation materials were generated based on PVDF support and single walled nanohorn (SWCNH) through a simple and efficient method. Different types of SWCNH, including pristine, ultrasound-treated, and oxidized, were applied to cover the PVDF material and characterized extensively. The materials showed improved performance in membrane distillation for desalination, with the ability to control wettability and material performance through the simple pretreatment method. The hybrid membranes exhibited enhanced permeate flux, ranging from 14-27% improvement for pristine and ultrasound-treated SWCNH, and 23% improvement for oxidized SWCNH. The structure of the hybrids allowed for the creation of separation materials with a wide range of wetting properties, from hydrophilic to superhydrophobic.
Article
Chemistry, Physical
Grzegorz Stanislaw Szymanski, Anna Kaczmarek-Kedziera, Monika Zieba, Piotr Kowalczyk, Artur Piotr Terzyk
Summary: The study reports the chromatographic investigation of n-alcohols adsorption on single walled carbon nanohorn (SWCNH) for the first time. Comparison with the data of adsorption on a graphite surface indicates that dispersive interactions play a leading role in the adsorption on SWCNH, which correlates with molecular diameter and polarizability. Additionally, calculations using modern DFT approach suggest promising future applications of SWCNHs in catalytic reactions involving n-alcohols.
Article
Chemistry, Physical
Paulina Bolibok, Stanislaw Koter, Anna Kaczmarek-Kedziera, Piotr Kowalczyk, Bogna Lukomska, Olga Lukomska, Slawomir Boncel, Marek Wisniewski, Katsumi Kaneko, Artur P. Terzyk
Summary: It has been found that graphene oxide (GO) undergoes transformation from micro to nanoscale and forms nanoscale GO (nanoGO) when subjected to adsorbed particular organic molecules. A new model is proposed to take nanosizing into account, and DFT calculations explain the selective adsorption behavior of different adsorbates on GO. The GO-nanoGO transformation is supported by marked changes in the surface area of GO during liquid phase adsorption of organic molecules.
Article
Chemistry, Physical
Pawel Bryk, Artur P. Terzyk
Summary: In this study, the effective interface potential method originally proposed for surfaces with first order wetting transition is shown to also be applicable for estimating the wetting temperature in surfaces with second order wetting transition. Various other methods for determining the wetting temperature are also briefly discussed.
Article
Chemistry, Physical
Piotr Kowalczyk, Artur P. Terzyk, Paulina Erwardt, Michael Hough, Artur P. Deditius, Piotr A. Gauden, Alexander Neimark, Katsumi Kaneko
Summary: To expedite the design and production of porous carbons with specific performance characteristics, incorporating machine learning regression into pore size distribution analysis is proposed. A machine learning algorithm was implemented to predict the paracetamol adsorption capacity of porous carbons based on two pore structure parameters: total surface area and surface area of supermicropores-mesopores. The experimental and predicted results for paracetamol capacities using this algorithm were shown to be within the range of experimental uncertainty. This novel approach has the potential to facilitate the production of carbon adsorbents optimized for the purification of aqueous solutions from non-electrolyte contaminants.
Article
Engineering, Chemical
Wojciech Ogieglo, Katarzyna Knozowska, Tiara Puspasari, Zain Ali, Joanna Kujawa, Emil Korczeniewski, Artur P. Terzyk, Wojciech Kujawski, Ingo Pinnau
Summary: In this study, we investigated the separation performance of an ethanol-cyclohexane mixture using a thin-film composite membrane made of a heat-treated polyimide. We studied the chemical and structural transformations that occur during the formation of thermally-rearranged and carbon molecular sieve membranes, which significantly impact the properties and separation behavior of the membrane. We achieved excellent separation performance by precise thermal treatment, and highlighted the unique property of pervaporation where the downstream side of the membrane remains dry despite swelling in the upstream region.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Slawomir Boncel, Jaroslaw Kaluzny, Jacek Rozanski, Beata Strzemiecka, Tomasz Runka, Lukasz Wojciechowski, Joanna Kujawa, Emil Korczeniewski, Artur P. Terzyk, Paulina Blaszkiewicz, Adam A. Marek, Anna Kolanowska, Rafal G. Jedrysiak, Szymon Ruczka, Grzegorz Dzido, Tomasz Gizewski
Summary: This study demonstrates the successful formation of stable and multifunctional CNT-PAO greases by using two types of multi-wall carbon nanotubes as thickeners and thermo- and electro-active agents. The mechanisms governing fast-thickening behavior and CNT-PAO affinities are analyzed, and the multifunctionality of CNT-PAO greases is revealed.
JOURNAL OF MOLECULAR LIQUIDS
(2023)