Article
Nanoscience & Nanotechnology
Jinyin Lv, Yanwen Cui, Jianhua Yang, Liangqing Li, Xuerong Zhou, Jinming Lu, Gaohong He
Summary: Fluorinated metal-organic framework material KAUST-7 has gained widespread attention due to its high chemical and thermal stability, exceptional tolerance to water and H2S, and high selectivity for CO2 adsorption over H2 and CH4. Researchers have successfully developed a highly H2-selective KAUST-7 membrane using a novel strategy called inorganic pillar centerfacilitated counterdiffusion (IPCFCD), highlighting the importance of pre-synthesizing inorganic pillar centers and innovative membrane formation processes.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Chemical
Ke Chen, Linhan Ni, Hao Zhang, Chengming Xiao, Li Li, Xin Guo, Junwen Qi, Chaohai Wang, Xiuyun Sun, Jiansheng Li
Summary: The rational design of fillers and polymers is essential for the fabrication of high-performance mixed matrix membranes (MMMs). In this study, fluorinated metal-organic frameworks (KAUST-7) were blended with a polymer of intrinsic microporosity (PIM-1) to prepare MMMs. The resulting MMMs demonstrated enhanced CO2/CH4 separation performance and improved anti-physical aging property, thanks to the porous nature of KAUST-7 and its strong interactions with PIM-1. The optimized MMMs exhibited a significant increase in CO2 permeability and CO2/CH4 selectivity, indicating their potential for practical CO2 separation applications.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Lun Shu, Yuan Peng, Rui Yao, Hongling Song, Chenyu Zhu, Weishen Yang
Summary: A facile strategy has been developed to construct defect-free and flexible metal-organic framework (MOF)-based membranes with high selectivity. The fabricated soft-solid MOF composite membranes showed excellent separation performance for H-2/CO2 separation. This study demonstrates the potential of MOF-based membranes in practical separation applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Wei Wu, Chunyuan Feng, Mantao Chen, Qin Tan, Yue Deng, Chao Zeng, Lixiang Zhong, Chunhui Dai
Summary: In this study, two new benzimidazole-linked conjugated microporous polymers were synthesized and one of them showed excellent selectivity and high productivity in the photocatalytic reduction of low-content CO2.
Article
Engineering, Chemical
Meixue Zhao, Jianping Guo, Qingping Xin, Yanli Zhang, Xu Li, Xiaoli Ding, Lei Zhang, Lizhi Zhao, Hui Ye, Hong Li, Guangyu Xuan, Yuzhong Zhang
Summary: This study aims to synthesize novel porous amino-functionalized nanosheets using PEI and PEO mixed matrix membranes. The membranes loaded with 2% PEI-F-Ce-2.5 nanosheets exhibited excellent CO2 permeability and outstanding CO2/N2 selectivity, surpassing the 2019 upper bound. The stable pore channel and reversible reaction of CO2 with -NH2 enhanced the CO2/N2 selectivity and showed potential for cryogenic gas separation applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Shanshan He, Bin Zhu, Songwei Li, Yanqiu Zhang, Xu Jiang, Cher Hon Lau, Lu Shao
Summary: This article summarizes the latest progress in modification strategies for PIM-1 based membranes, including the design and modification of PIM-1 intrinsic structure and the fabrication of PIM-1/nanofiller mixed matrix membranes. The focus of the research is to improve the selectivity and long-term stability of PIM-1 membranes for crucial gas separations such as CO2 capture.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Muhd Izzudin Fikry Zainuddin, Abdul Latif Ahmad, Meor Muhammad Hafiz Shah Buddin
Summary: In this study, a rubbery polymer polydimethylsiloxane (PDMS) membrane is incorporated with magnesium oxide (MgO) in a hierarchically two-dimensional (2D) nanosheet shape for CO2 separation. The optimal loading of MgO is found to be at 1 wt.%, where the CO2 permeability decreased and the CO2/N-2 selectivity increased. When the loading was further increased to 5 wt.%, sedimentation of the filler occurred, causing increased CO2 gas permeability and improved CO2/N-2 selectivity.
Article
Polymer Science
Kavya Adot Veetil, Asmaul Husna, Md. Homayun Kabir, Insu Jeong, Ook Choi, Iqubal Hossain, Tae-Hyun Kim
Summary: The use of mixed matrix membranes (MMMs) comprising metal-organic frameworks (MOFs) has been recognized as an effective strategy for enhancing gas separation efficiency. However, the poor compatibility between the filler and matrix may compromise the separation performance. This study modifies the filler to improve its compatibility with the matrix and enhance the selectivity of CO2 over N-2 and CH4.
Article
Multidisciplinary Sciences
Zhaoqiang Zhang, Yinlin Chen, Kungang Chai, Chengjun Kang, Shing Bo Peh, He Li, Junyu Ren, Xiansong Shi, Xue Han, Catherine Dejoie, Sarah J. Day, Sihai Yang, Dan Zhao
Summary: Guest clusters in confined nanospaces have great influence on molecular recognition. Researchers have found that gas-cluster rearrangement can be systematically controlled to achieve tunable sorption and separation behavior in MOFs. By studying the packing geometries of CO2 and C2H2 clusters in CUK-1 material at different temperatures, they have successfully achieved high-purity separation of C2H2 using a one-step purification process.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Liting Yu, Liqin Hao, Yang Feng, Jia Pang, Mengwei Guo, Liangjun Li, Weidong Fan, Lili Fan, Rongming Wang, Zixi Kang, Daofeng Sun
Summary: In this study, an IL@CC3/PIM-1 membrane was constructed by introducing an ionic liquid (IL) into the molecular fillers of CC3. The doping of IL resulted in improved pore structure of POCs, enhanced gas permeability and selectivity. The membrane also exhibited good stability and maintained stable separation performance under different conditions.
Article
Engineering, Chemical
Mahsa Loloei, Serge Kaliaguine, Denis Rodrigue
Summary: Bimetallic metal-organic frameworks (MOF) have gained attention for their synergic effect and enhanced properties compared to their parent structures. This study reports the synthesis of bimetallic Zn/Co-ZIF and its monometallic counterparts, ZIF-8 and ZIF-67, with a facile and low-cost method. Zn/Co-ZIF showed higher pore volume, BET surface area, and a slightly higher Zn-rich external surface.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Rupam Sahoo, Supriya Mondal, Debolina Mukherjee, Madhab C. Das
Summary: Efforts have been made to separate CO2 from flue gas and biogas using nonthermal-based separations, such as adsorption-based or membrane-separation technology employing metal-organic frameworks (MOFs). This review summarizes the strategies, performance parameters, and molecular-level mechanisms of such separations, and offers critical insights and future recommendations for further development of MOF materials as flue and biogas separators.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Chemical
Yuxiu Sun, Chenxu Geng, Zhengqing Zhang, Zhihua Qiao, Chongli Zhong
Summary: In this study, basic cobalt carbonate supported zeolitic imidazolate framework-67 nanoplates were synthesized and applied in mixed matrix membranes, resulting in membranes with high CO2 permeability and separation factor. The improved separation performance is attributed to the high CO2 adsorption capacity, alignment of 2D morphology, and molecular sieving ability of BCoC-ZIF.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Run Li, Ying Yang, Zezhou Zhang, Shaohan Lian, Quan Zhao, Chunfeng Song
Summary: This study presents a method of incorporating N-doped microporous carbon microparticles into polymer matrix membranes, creating fast CO2 transport channels and achieving good gas separation performance.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
I. Ahmad, H. Jee, S. H. Song, M. J. Kim, T. Eisa, J. K. Jang, K. -J. Chae, C. Y. Chuah, E. Yang
Summary: This study investigates the potential utility of 2D MXenes as nanofillers to enhance the gas separation performance of polydimethylsiloxane (PDMS) membrane. Mixed-matrix membranes were fabricated by incorporating multilayer MXene (ML-MXene) and single-layer MXene (D-MXene) into PDMS matrices, and the addition of MXene improved the separation capacity of the rubbery dense layers. The optimized D-MXene-loaded mixed-matrix membrane at 1 wt% loading demonstrated a 64.1% increase in CO2 permeability and a 21.3% increase in CO2/N2 selectivity compared to pure PDMS membrane.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Engineering, Chemical
Shi-Chao Qi, Yan-Fei Yu, Zhi-Hui Yang, Xiao-Ying Liu, Xiao-Jie Lu, Xiao-Qin Liu, Lin-Bing Sun
Summary: Traditionally, chemical modifications were used to modulate material active sites at ground states. However, this study demonstrates that molecular skeletons (MSs) and adjoint electron-configuration (MS-AEC) can be tuned at excited states (ESs) without chemical modifications. By using a porphyrinic metal-organic framework, the carbon capture performance is enhanced through the tuning of MS-AEC and electrostatic-potentials, which can be further modulated by metal cations. This work highlights the availability of static ESs and the potential of nonchemical modifications.
Article
Chemistry, Multidisciplinary
Peng Tan, Yu-Fen Bao, Ding-Hua Liu, Xiao-Qin Liu, Lin-Bing Sun
Summary: Adsorption is a widely applied technique for producing high-purity chemicals. Traditional adsorbents have inflexible properties and suffer from selectivity-desorption trade-off. Photoresponsive adsorbents provide new avenues for adsorption techniques by regulating active sites through steric hindrance or tunable interactions. This concept summarizes recent efforts on the fabrication and application of photoresponsive adsorbents with tunable active sites, and presents future opportunities and challenges of photoregulation on adsorptive sites.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Hui Wen, Wen-Juan Zhang, Ze-Jiu Diao, Wei Liu, Guoliang Liu, Chen Gu, Tao Yang, Hang-Ou Qi, Lin-Bing Sun
Summary: For the first time, smart solid base catalysts were developed by anchoring photoresponsive azobenzene motifs onto UiO-66-NH2. The catalytic activity could be tailored by changing the steric hindrance of the catalysts through the isomerization of azobenzene motifs under UV and visible light irradiation.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Ya Sun, Xuke Zhang, Jialuo Cheng, Minghui Guo, Xiaofang Li, Chunlei Wang, Linbing Sun, Juntao Yan
Summary: Li3PO4-coated Li1.2Ni0.2Mn0.6O2 cathode materials were synthesized by sol-gel method and a facile liquid-evaporation process. The Li3PO4 coating layer not only facilitated lithium-ion diffusion rate and accelerated diffusion kinetics, but also acted as a protective layer to prevent corrosion by HF and other side reactions. The electrochemical performance of the Li-rich layered oxides was significantly enhanced after modification.
Article
Chemistry, Multidisciplinary
Yu-Xia Li, Ke-Di Li, Xin-Yu Qian, Xiao-Qin Liu, Lin-Bing Sun
Summary: A facile photo-induced strategy is reported to fabricate Cu+ sites in metal-organic frameworks (MOFs) and recover Cu+ after oxidation. The presence of Cu+ significantly enhances CO capture capacity due to pi-complexation interaction. Moreover, Cu+ can be conveniently recovered via re-irradiation when oxidized to Cu2+.
Article
Chemistry, Multidisciplinary
Lei Wang, Xianying Bai, Yawei Gu, Xinxin Shi, Shilong Wang, Jingxian Hua, Rujing Hou, Chongqing Wang, Yichang Pan
Summary: 2D metal-organic frameworks are attractive fillers in mixed matrix membranes (MMMs) due to their high aspect ratio and contact opportunity at the filler-polymer interface. However, aligning them in the polymer matrix remains a challenge to fully utilize their functions.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Engineering, Chemical
Min Li, Ji-Xin Xie, Peng Tan, Jun Liu, Chen Gu, Xiao-Qin Liu, Lin -Bing Sun
Summary: By utilizing surface plasmon resonance effect, Ag nanoparticles are used as nanoheaters targeted at active sites to elevate the temperature of CO2 adsorbents. Under visible-light irradiation, Ag nanoparticles convert light energy to heat and transfer heat to nearby active sites rapidly, achieving efficient desorption of CO2. This strategy also applies in fixed beds and provides a new avenue for advanced desorption systems.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Jing-Jing Li, Si-Yi Liu, Guoliang Liu, Yu-Guo Liu, Guan-Zhou Wu, Hua-Dong Li, Rajamani Krishna, Xiao-Qin Liu, Lin-Bing Sun
Summary: The adsorptive separation of ethane/ethylene mixtures has attracted great attention due to its potential in reducing energy consumption in the petrochemical industry. However, constructing ethane-selective adsorbents is challenging. In this study, a perylene diimide-based zirconium metal-organic framework (Zr-Me-PDI) was developed for efficient separation of ethane from ethylene. The Zr-Me-PDI exhibited superior stability and showed ethane-selective adsorption behavior. This research provides valuable guidance for the design and synthesis of ethane-selective adsorbents.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Ze-Jiu Diao, Guan-Zhou Wu, Tian-Jing Zhang, Hang-Ou Qi, Jing-Jing Li, Ming Lu, Guoliang Liu, Xiao-Qin Liu, Lin-Bing Sun
Summary: Two hyper-cross-linked polymers, HCP-DiAn and HCP-DiBrAn, were synthesized using dianthracene derivatives as monomers. HCP-DiBrAn exhibited higher surface area and photoactivity, and was evaluated as a catalyst for the photocatalytic oxidation of organic sulfides. Mechanism investigations revealed that the catalytic performance of HCP-DiBrAn was determined by electron and energy transfer pathways. This project demonstrated the potential of dianthracene-based materials for advanced applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Yao Jiang, Mingming Xu, Kang Wang, Tao Yang, Shaojun Jia, Xiao-Qin Liu, Peng Cui, Lin-Bing Sun
Summary: In this study, a new strategy was developed to improve the dispersity, switchability, and utilization of active sites in light-switchable metal-organic cages (LMOCs) by isolating them into the targeted pores of metal-organic frameworks (MOFs) using light-assisted precise size control. Furthermore, reversible trans/cis isomerization of light-switchable motifs in the LMOCs was achieved upon UV/vis-light irradiation, allowing for maximum control over CO2 adsorption behavior. This work provides a facile route for the development of new composite materials with isolated light-switchable motifs for tunable CO2 adsorption.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Jing Zhu, Shi-Chao Qi, Xiao-Qin Liu, Lin-Bing Sun
Summary: In this study, a new type of adsorbent with photo-responsive active sites for adsorptive desulfurization is reported. Coumarin monomers were incorporated into MIL-101(Cr) to construct the photo-responsive adsorbents. When triggered by UV light (>310 nm), coumarin monomers undergo dimerization and form a cyclobutane structure, resulting in increased uptake of 4,6-dimethyldibenzothiophene (4,6-DMDBT). Under irradiation of 254 nm UV light, coumarin dimers can transform back to monomers, leading to decreased adsorption of 4,6-DMDBT. The change in adsorption amount between PMOF and the coumarin monomers and dimers is up to 62.8%. This study may open up new avenues for the fabrication of adsorbents with on-demand active sites for various applications.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Wen-Juan Zhang, Li Zheng, Shi-Chao Qi, Jia-Xin Li, Ding-Ming Xue, Xiao-Qin Liu, Lin-Bing Sun
Summary: Light-responsive adsorbents can have adjustable performance under light irradiation. A series of light-responsive composites were created by incorporating LiYGeO4:Bi3+ into a light-responsive MOF. These composites can regulate CO2 adsorption capacity without continuous light irradiation, making them promising materials for real-world applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Hui Wen, Guoliang Liu, Shi-Chao Qi, Chen Gu, Tao Yang, Peng Tan, Lin-Bing Sun
Summary: The researchers constructed a smart solid acid catalyst system by introducing photo-switchable azobenzene motifs and a phosphotungstic acid (PTA) center into a metal-organic framework. The catalytic activity in the deacetalization reaction can be regulated remotely through UV and vis-light irradiation. The present smart catalysts provide a new approach for effective control of catalytic activity through a photo-switchable method.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Yao Jiang, Tao Yang, Xiao-Qin Liu, Peng Cui, Lin-Bing Sun
Summary: This study presents a light-switchable metal-organic cage, NUT-102, incorporated with pendant azobenzene groups for controllable CO2 capture. By irradiating with visible light, the pores of NUT-102 can be exposed to favor CO2 adsorption, while irradiating with ultraviolet light can lead to the sheltering of the pores and reduction of CO2 adsorption. The controllable CO2 adsorption change can reach up to 65.2%.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Yu -Yang Gu, Guoliang Liu, Shi-Chao Qi, Chen Gu, Tao Yang, Xiao-Qin Liu, Lin -Bing Sun
Summary: For the first time, PMOFs decorated with Cu2O active sites and functionalized with azobenzene have been prepared, allowing for controllable adsorption of benzothiophene through light regulation.
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)