Article
Materials Science, Multidisciplinary
Xiangyu Huang, Shengqiu Zhao, Hao Liu, Rui Wang, Haolin Tang
Summary: This study controls and optimizes the volume of hydrophilic channels by adjusting the collocation of resins with different side-chain lengths, improving the proton conductivity of proton exchange membranes and addressing the issue of water flooding and performance degradation in fuel cells.
ACS APPLIED POLYMER MATERIALS
(2022)
Review
Chemistry, Inorganic & Nuclear
Ya-Ru Liu, Yi-Yang Chen, Qi Zhuang, Gang Li
Summary: This review introduces the strategy of introducing proton-conducting MOFs with performance advantages into the PEM system and summarizes the properties of mixed-matrix membranes and PEMs formed by MOFs. It focuses on preparation strategies, stability, proton conductive properties, proton conduction mechanisms, and structure-activity relationship. The review highlights the prospects and challenges of future research.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Nanoscience & Nanotechnology
Kyungwhan Min, Abu Zafar Al Munsur, Sae Yane Paek, Soomin Jeon, So Young Lee, Tae-Hyun Kim
Summary: By coating N-doped carbon quantum dots (CQDs) with hydrophilic functional groups on Nafion-212 membrane, the morphology and ionic conductivity of the membrane are improved and hydrogen permeability is reduced. The Nafion membrane coated with 0.75 wt % of N-doped CQD (CQD-cNafion-0.75) exhibits better mechanical properties, higher oxidation stability, higher ionic conductivity of 240.3 mS cm-1 at 80 degrees C, and a reduction in hydrogen permeability (about 10%) compared to Nafion-212. In addition, the performance of single-cell PEMWE using the CQD-cNafion-0.75 membrane is approximately 1.2 times higher than Nafion-212.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Nam Il Kim, Beum Geun Seo, Hae Wook Park, Jung Woo Shim, Hyun Jin Kong, Joon Hyung Shim
Summary: Coating a reinforced composite membrane with a hydrophilic Pt layer improves the durability of polymer membranes used in fuel cell applications. A Pt coating was introduced onto the composite membrane, resulting in increased hydrophilicity and better performance. The Pt-coated composite membrane showed less degradation and lower fluorine emission rate, making it a potential candidate for proton exchange membrane fuel cells.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Weiqi Li, Cong Xu, Tianyi Xiong, Yanan Jiang, Wenjie Ma, Ping Yu, Lanqun Mao
Summary: Proton conductors are of great interest in energy production, and graphdiyne oxide (GDYO) has been found to have the highest proton conductivity among oxidized carbon allotropes reported so far. The carbon structure of GDYO allows for high water uptake, resulting in increased proton concentration and conduction pathways, leading to ultrahigh proton conductivity. This has been demonstrated in a methanol fuel cell using GDYO membrane, which showed improved performance compared to commercial Nafion 117.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Ji Eon Chae, So Young Lee, Sae Yane Baek, Kwang Ho Song, Chi Hoon Park, Hyoung-Juhn Kim, Kwan-Soo Lee
Summary: This study focuses on the design and evaluation of novel hydrophilic-hydrophobic poly(arylene ether sulfone) multiblock copolymers for their synergistic effects upon transport properties in proton exchange membrane water electrolysis. By adjusting the proportions of hydrophilic and hydrophobic segments, the multiblock copolymer with a higher proportion of hydrophilic segments showed enhanced performance due to the greater continuity of nano-sized ionic channels.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Composites
Yao Wang, Yanming Wang, Yizheng Wang, Bihai Su, Linlin Shi, Feibo Li, Jingbo Mu, Hongwei Che, Zhixiao Zhang, Xiaoliang Zhang, Ping Li, Feng Li
Summary: This study prepared ionic liquid grafted boron nitride (ILs@BN) using wet ball milling, and fabricated polyimide (PI) composite films with different contents (1, 2, 3, 4, and 5 wt%) of ILs@BN by solution-casting method. The obtained composite films showed significantly improved performance compared to the original polyimide films. The film containing 4 wt% ILs@BN exhibited enhanced tensile strength, better hydrophilicity, and excellent proton conductivity, showing great potential applications in fuel cells.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Yichen Yin, Sijia Liu, Yang Yang, Dian Gong, Minghao Liu, Guojuan Liu, Ping Wu, Qing Xu, Chengbing Yu, Gaofeng Zeng
Summary: Water electrolysis is a promising method for producing non-fossil fuel derived H2, and medium temperature water (steam) electrolysis (100-350 degrees C) has great potential due to its reduced energy consumption and utilization of low-grade waste heat. However, the performance of proton conductive membranes presents a challenge. In this study, a PVC-PEI hybrid membrane was developed by cross-linking PVC and PEI, and the integrated nitrogen-containing groups of PEI enhanced the adsorption and loading rate of phosphoric acid, thereby providing proton conductivity for the hybrid membrane. The optimized PVC-PEI membrane achieved a maximum proton conductivity of 4.3 x 10-2 S cm-1 at 180 degrees C and exhibited long-term conductivity stability for 200 hours at 140 degrees C. The PVC-PEI membrane electrode assembly showed high water electrolysis reactivity in the range of 100-180 degrees C with a commercial IrO2 anode and Pt/C cathode, and demonstrated reliable stability for water electrolysis at 140 degrees C.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Hongying Tang, Ge Chao, Jian Gao, Yuntao Shang, Nanwen Li, Kang Geng
Summary: By blending Tro center dot ger's base (TB) membrane with a microporous polymer (PIM-1), the microporosity of the membrane can be fine-tailored to mitigate phosphoric acid leakage in high temperature proton exchange membranes (PEMs). The resulting PIM/TB9 membrane exhibits excellent phosphoric acid retention ability, high proton conductivity, and stable performance over extended periods.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Shuai Liu, Libin Zhang, Zhong Wang, Fei Dong, Qingliang Zhao, Qixia Zhang
Summary: This study conducted simulation research on liquid water transfer in the flow channel with a hydrophilic pipe using the volume-of-fluid method, which proved that a hydrophilic pipe structure is more effective in removing water from the gas diffusion surface (GDL) and reducing its surface water coverage.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Ping-Yen Chen, Tse-Han Chiu, Fan-Jie Lin, Jyh-Chien Chen
Summary: Two novel tetraamines have been synthesized, and polybenzimidazoles with outstanding thermal stability, solubility, and oxidative stability have been prepared. The resulting membranes exhibit excellent tensile strength, proton conductivity, and peak power density, making them promising candidates for high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Shu-Hui Liu, Kun-Yan Lee
Summary: By synthesizing a proton exchange membrane (PEM) with low oxygen diffusivity and high proton conductivity through the production of composite membranes using different polyvinyl alcohol (PVA) and conductive carbon black (CCB) ratios, we were able to significantly enhance the PEM properties. The optimal concentrations of PVA and CCB were determined to be 10.04% and 0.82 m(3) g(-1) respectively, leading to a 20-fold increase in proton conductivity (PC) compared to unmodified PEM. Additionally, applying the modified PEM to a biotrickling filter-MFC (BTF-MFC) improved the removal efficiency of gaseous acetone to over 97%.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Yanbo Chen, Fei Xu, Jing Li, Yuyang Han, Junjie Qiao, Jie Liu, Yao Xu, Bencai Lin
Summary: Poly(fluorenyl terphenyl piperidinium) (PFTP) with an aromatic backbone was synthesized to produce proton exchange membranes (PEMs) with robust mechanical properties. The introduction of propanesulfonic acid side chains enhanced the phosphoric acid (PA) adsorption capacity and proton conductivity of the resulting sulfonated PFTP (SPFTP-x) membranes. These membranes exhibited good thermal, oxidization, and dimensional stabilities, and the SPFTP-x membranes showed higher PA adsorption capacity and higher proton conductivity than the PFTP membrane. A single cell assembled with SPFTP-50 exhibited a maximum power density of 280 mW cm-2 at 100 degrees C, indicating the promising application of SPFTP-x as a membrane material for high-temperature proton membrane fuel cells.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Qingting Liu, Xiaohe Wang, Xiaoxiao Zhang, Zhiwei Ling, Wenzhuo Wu, Xudong Fu, Rong Zhang, Shengfei Hu, Xiao Li, Feng Zhao, Xujin Bao
Summary: Polyethyleneimine-filled sepiolite nanorods (PEI@SNR)-embedded poly(2,5-benzimidazole) composites (ABPBI/PEI@SNR) were synthesized to enhance the proton conductivity and stability of proton-exchange membrane fuel cells (PEMFCs). The composite membranes showed improved thermal stability and achieved high proton conductivities from room temperature to 200 degrees C. The cell performance of the composite membrane-based PEMFCs was significantly better than previously reported zeolite-embedded membranes.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Polymer Science
Miriam M. Tellez-Cruz, Jorge Escorihuela, Omar Solorza-Feria, Vicente Compan
Summary: The study of electrochemical catalyst conversion of renewable electricity and carbon oxides into chemical fuels is crucial for mitigating the global energy crisis. Research efforts are currently focused on developing high-performance membranes and nanomaterials with high catalytic activity to improve fuel cell performance and reduce the use of expensive platinum group metals.
Article
Chemistry, Multidisciplinary
Jun Wang, Xiang Lin, Runguo Wang, Yonglai Lu, Liqun Zhang
Summary: This study presents the design and synthesis of novel thermoplastic polyurethanes with self-healing properties and photothermal effects to improve the mechanical properties of 3D printed objects. The mechanical anisotropy of the printed products can be controlled by regulating the self-healing conditions, and support-free printing and healing of damaged prints are achieved. Additionally, the materials exhibit shape-memory properties and show potential for 4D printing applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Biotechnology & Applied Microbiology
Yushuang Yang, Bi Qin, Qiuhui Chen, Qiuhai Nie, Jichuan Zhang, Liqun Zhang, Shizhong Liu
Summary: A high-density SNP genetic map was constructed for TKS, and genomic regions controlling the NR content were identified. Six quantitative trait loci (QTLs) related to NR content were found, and these markers could be used for marker-assisted selection in TKS with high NR content. This study provides valuable information for fine mapping, map-based cloning, and MAS in TKS.
Article
Engineering, Environmental
Rui Zhang, Jiaye Li, Stephen Jerrams, Shui Hu, Li Liu, Shipeng Wen, Liqun Zhang
Summary: In this study, modified graphene oxide and silica were used to construct composite particles with bridged structures, which were then mixed with styrene butadiene rubber to improve the mechanical and abrasion resistance properties of the composite material.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Dong Wang, Zhenghai Tang, Ruoyan Huang, Yun Duan, Siwu Wu, Baochun Guo, Liqun Zhang
Summary: This study reports the use of an amino-functionalized polysulfide (PDAS) as a novel interfacial modifier in NR/CB composites. The amino groups of PDAS react with the carboxyl groups on the CB surface, while the polysulfide chains of PDAS react with rubber chains, leading to the crosslinking of NR and the establishment of a molecular bridge between NR and CB. The dosage of PDAS has a significant influence on CB dispersion and interfacial adhesion, which in turn affects the properties of the composites. Compared to the unmodified counterpart, the PDAS-modified composite exhibits improved CB dispersion, enhanced interfacial adhesion, and reduced hysteresis loss.
CHEMISTRY OF MATERIALS
(2023)
Article
Polymer Science
Gao Pan, Meimei Chen, Yao Wang, Jichuan Zhang, Li Liu, Liqun Zhang, Fanzhu Li
Summary: In this study, the mechanical response of rubber materials in different components of a TBR tire under cyclic loading was investigated. Experimental data processing and parameter identification methods were proposed and applied to fit the data using hyper-pseudo-viscoelastic models. The fitting results showed good agreement and high accuracy with the experimental data, demonstrating the capability of the models to describe the mechanical responses. Simulation of cyclic deformation based on the constitutive model and fitted parameters also achieved high accuracy.
Article
Chemistry, Multidisciplinary
Weixiao Song, Zixuan Wang, Yihao Xing, Ganggang Zhang, Xi Zhang, Yonglai Lu, Tianwei Tan, Liqun Zhang
Summary: A series of carboxylic acids with different chain lengths and degrees of functionality were synthesized through the catalyst-free and solvent-free alcoholysis of maleic anhydride and served as cross-linkers for ENR. The mechanical properties of ENR/carbon black composites could be adjusted via changing the structure and content of the cross-linkers. The carboxylic acid-cured ENR showed improved thermal-oxidative aging resistance compared to sulfur-cured ENR due to the formation of thermally stable ester cross-links.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Wenpeng Zang, Sijin Jin, Shuxiong Fu, Yuhao Wang, Yingjie Jiang, Xueying Liu, Nanying Ning, Ming Tian, Liqun Zhang
Summary: In order to achieve dielectric elastomer generators (DEGs) with excellent energy harvesting performance and long life, electrode materials with high compliance, high electrical conductivity, high stability under high strain, and high durability are crucial. In this study, a highly conductive supermolecule-based electrode material for DEGs was designed and prepared, which showed high elongation at break, self-healing efficiency of electrical conductivity at room temperature, good recyclability, and high durability. Compared to commonly used electrodes, the new electrode exhibited higher energy density and excellent room temperature self-healing ability, reducing the need for disassembling the device and improving convenience.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Wenjie Wu, Shipeng Wen, Yi Wei, Lu Ruan, Fanzhu Li, Xia Cao, Zhong Lin Wang, Liqun Zhang
Summary: Exercise not only improves health but also reduces the risk of diseases. However, track and field sports can harm the knees without proper buffering. Most tracks are made of materials that emit volatile organic compounds and lack smart features. In this study, a unibody silicone rubber-based track was introduced with adequate cushioning, environmental-friendliness, energy harvesting, and sensing capabilities. It can function as both an electric generator and a gait sensor, providing guidance for the development of self-powered smart tracks.
Article
Chemistry, Multidisciplinary
Linan Feng, Zhong Lin Wang, Xia Cao, Liqun Zhang
Summary: In this paper, an array parallelly assembled triboelectric nanogenerator (PS-TENG) is proposed, which generates sustainable electrical power through hand motion with significantly enhanced electrification efficiency and reliability. The output of the PS-TENGs is 2.8 times higher than that of the TENG with series electrodes (S-TENGs) under the same operating conditions. This design promotes the application of TENG in powering portable electronic devices.
Article
Materials Science, Multidisciplinary
Junwei He, Qionghai Chen, Jiajun Qu, Sai Li, Yuan Wei, Liqun Zhang, Shikai Hu, Anchao Feng, Jun Liu
Summary: A facile two-step approach was proposed to synthesize self-healing elastomers based on dynamic oxime-carbamate bonds. All-atom molecular dynamics simulations further verified the formation of hydrogen bonds and dynamic oxime-carbamate bonds. The mechanical strength of the elastomer increased with the increase of hard segment content, and its self-healing behavior was verified at a certain temperature. The combined simulation and experimental studies provided a reasonable approach for future self-healing systems.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hui Xiong, Tongkui Yue, Qi Wu, Linjun Zhang, Zhengtian Xie, Jun Liu, Liqun Zhang, Jinrong Wu
Summary: Exploring side-chain interlocking in bottlebrush polymers as a dynamic network for self-healing process, this study demonstrates that materials can achieve self-healing capability in harsh environments, and also act as damping materials to dissipate vibration energy.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Shuangjian Yu, Yeqing Li, Siwu Wu, Zhenghai Tang, Liqun Zhang, Baochun Guo
Summary: In this study, a multi-scale topology design strategy was proposed to regulate and functionalize vegetable oil-based networks through controlling the proportion of functional groups during the bulk polymerization of epoxidized soybean oil with dimer fatty acids. Additionally, a second polymer network was introduced as a protective layer into the vegetable oil-based network via interfacial cross-links. The resulting vegetable oil-based elastomers exhibited unprecedented comprehensive properties, reprocessability, and self-healing capability. Overall, this work developed a novel kind of elastomers with significant advantages and provided important inspiration for the preparation of high-performance elastomers through multi-scale topology regulation.
Article
Chemistry, Physical
Xinglong An, Siwu Wu, Shafan Xiong, Shuangjian Yu, Zhenghai Tang, Baochun Guo, Liqun Zhang
Summary: A new methodology is developed to design functionalized diene rubbers with tunable chain structures by using disulfide/polysulfide linkages as reactive substrates. The method allows for easy tuning of the chain structure by adjusting the pyrolysis conditions and monomer content. It is demonstrated to be versatile and has important scientific and economic significance for the production of custom-made functionalized rubbers.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Polymer Science
Guan-yi Hou, Jun Liu, Li-qun Zhang
Summary: With the advancement of science and technology, computer software/hardware technology has significantly improved the efficiency of large-scale parallel computing, allowing scientists to analyze high-degree-of-freedom systems and design new materials structures and properties at a relatively low cost. Computational Materials Science, as the core of Materials Genome Engineering, has played a crucial role in the research of polymeric materials, such as elastomers, energy materials, optical materials, thermal conductive materials, and biomedical materials. This review also presents future development prospects and challenges in the field, providing a basis and guidance for the development of polymeric disciplines.
ACTA POLYMERICA SINICA
(2023)
Article
Chemistry, Multidisciplinary
Xiaodi Zhang, Qi Li, Longfei Li, Jiang Ouyang, Tong Wang, Junjie Chen, Xiaoqing Hu, Yingfang Ao, Duotian Qin, Liqun Zhang, Jiajia Xue, Jin Cheng, Wei Tao
Summary: This study presents a bioinspired scaffold that utilizes mild photothermal stimulation to eliminate bacteria, recruit MSCs, and promote bone regeneration.
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)