Journal of Membrane Science最新文献_第6页

Fabrication of POSS-centered polyester network as high anti-chlorine and anti-fouling separation layer of membrane via successive Photo-ATRP and interfacial polymerization for molecular separation 通过连续光-ATRP 和界面聚合制造以 POSS 为中心的聚酯网络，作为膜的高抗氯和防污分离层，实现分子分离

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-22 DOI: 10.1016/j.memsci.2024.123432

Xiaoling Xu , Bin Peng , Yanqiu Wang , Yaqi Dong , Hui Wang , Wentong Chen , Yan Liu , Qiang Zhang

{"title":"Fabrication of POSS-centered polyester network as high anti-chlorine and anti-fouling separation layer of membrane via successive Photo-ATRP and interfacial polymerization for molecular separation","authors":"Xiaoling Xu , Bin Peng , Yanqiu Wang , Yaqi Dong , Hui Wang , Wentong Chen , Yan Liu , Qiang Zhang","doi":"10.1016/j.memsci.2024.123432","DOIUrl":"10.1016/j.memsci.2024.123432","url":null,"abstract":"<div><div>The incorporation of polyhedral oligomeric sesquisiloxane (POSS), a distinctive nanoparticle, into the membrane separation layer represents an effective strategy for enhancing the chlorine resistance of membranes. This modification contributes to both the durability of the membrane and its separation efficiency. However, POSS is easy to agglomerate, which affects the separation performance of the membrane. In this paper, POSS-centered polyhydroxy polymer (OMEPOSS-P(GMA-NMDG)) was synthesized <em>via</em> photo-induced atom transfer radical polymerization and used as water-soluble monomer to prepare polyester separation layer on porous substrates through interfacial polymerization with trimelanoyl chloride. The obtained POSS-centered polyester membrane exhibits a high dye removal rate exceeding 99 %, and it can realize the screening of dye molecules with different molecular weight and different charge. Notably, the membrane demonstrates excellent chlorine resistance, maintaining effective separation efficiency after exposure to sodium hypochlorite solutions at concentrations of 10 000 ppm for 96 h and 1000 ppm for 7 days. It is worth noting that the membrane showed high anti-fouling performance. This method provides a useful guideline for the development of chlorine-resistant and anti-fouling separation membranes.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"715 ","pages":"Article 123432"},"PeriodicalIF":8.4,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering the ultrathin polyamide nanofilm featuring high free volume via interfacial polymerization for efficient CO2 capture 通过界面聚合技术制造具有高自由体积的超薄聚酰胺纳米薄膜，用于高效捕获二氧化碳

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-22 DOI: 10.1016/j.memsci.2024.123443

Fei Shi , Qinghua Li , Ye Yuan , Yi Yang , Xingzhong Cao , Menglong Sheng , Song Zhao , Zhi Wang

{"title":"Engineering the ultrathin polyamide nanofilm featuring high free volume via interfacial polymerization for efficient CO2 capture","authors":"Fei Shi , Qinghua Li , Ye Yuan , Yi Yang , Xingzhong Cao , Menglong Sheng , Song Zhao , Zhi Wang","doi":"10.1016/j.memsci.2024.123443","DOIUrl":"10.1016/j.memsci.2024.123443","url":null,"abstract":"<div><div>Interfacial polymerization (IP) has been received as an indispensable technology to fabricate thin-film composite (TFC) membranes for gas separation because of the simple and designable process. However, achieving the highly permeable polyamide (PA) TFC membrane for CO<sub>2</sub> capture <em>via</em> the IP technique remains challenging. Herein, a highly CO<sub>2</sub>-permeable PA TFC membrane was synthesized by the polycondensation of N, N-Bis [3-(methylamino) propyl]methylamine (BMAPAm) and trimesoyl chloride (TMC). The ultrathin (∼47 nm) PA TFC membrane featuring with high free volume exhibited excellent CO<sub>2</sub> permeance with moderate CO<sub>2</sub>/N<sub>2</sub> selectivity. The causes of this desired structure were systematically investigated from the aspects of monomer supply and molecular structure, in which the 3,3′-diamino-N-methyldipropylamine (DNMDAm) was used as a comparison. The results illustrated the underlying monomer-structure-performance relationships of IP-made membranes, demonstrating the solid potential of the IP technology specifically toward high-performance CO<sub>2</sub> capture membranes. Finally, a pilot-scale continuous membrane fabrication process was demonstrated.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"715 ","pages":"Article 123443"},"PeriodicalIF":8.4,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impregnation, dehydration and crosslinking of responsive organoboron polymer to generate smart gating membrane for multimolecular gradient separation 浸渍、脱水和交联反应性有机硼聚合物，生成用于多分子梯度分离的智能门控膜

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-22 DOI: 10.1016/j.memsci.2024.123440

Xinzhao Luo , Yaqi Dong , Liyuan Fan , Mengyao Zhao , Qian Wang , Haisheng Zhang , Qiang Zhang

{"title":"Impregnation, dehydration and crosslinking of responsive organoboron polymer to generate smart gating membrane for multimolecular gradient separation","authors":"Xinzhao Luo , Yaqi Dong , Liyuan Fan , Mengyao Zhao , Qian Wang , Haisheng Zhang , Qiang Zhang","doi":"10.1016/j.memsci.2024.123440","DOIUrl":"10.1016/j.memsci.2024.123440","url":null,"abstract":"<div><div>Responsive materials have garnered increasing attention in the membrane separation field. However, fabricating smart gating membranes with tunable pore sizes to separate complex systems remains challenging. Herein, gating membranes with boroxine skeleton and temperature-tunable pores were successfully fabricated by fixing lower critical solution temperature (LCST)-type organoboron polymers (poly(N-isopropylacrylamide-<em>co</em>-glycidyl methacrylate/3-aminophenylboronic acid), PNG-APBA) onto the membrane surface <em>via</em> \"impregnation-dehydration-crosslinking\" strategy. The conformational behavior of the NIPAM-containing polymer chains (shrinking above LCST-stretching below LCST) serves as a functional gate, enabling the membranes to achieve reversibly tunable pore sizes and surface properties. The modified membranes exhibit gradient separation capabilities for small/medium/large molecules in complex polymer systems through temperature-tunable channels. The tunable pores also provided a potential tool for the high-selectivity separation of mixed proteins, such as lysozyme (LZM) and hemoglobin (Hb). Notably, the conformational behavior of the polymer chains endowed the membranes with excellent self-cleaning ability (<em>FRR</em>> 99.5 %), while the boroxine network enhanced the grafting stability of the polymer chains, ensuring effective reversibility and repeatability of membranes.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"715 ","pages":"Article 123440"},"PeriodicalIF":8.4,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elucidating organic and nutrient transport mechanisms in polyelectrolyte modified membranes for selective nutrient recovery 阐明用于选择性养分回收的聚电解质改性膜中的有机物和养分输送机制

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-21 DOI: 10.1016/j.memsci.2024.123438

Km Prottoy Shariar Piash , Noah Sprouse , Cole Hodges , Lian-Shin Lin , Oishi Sanyal

{"title":"Elucidating organic and nutrient transport mechanisms in polyelectrolyte modified membranes for selective nutrient recovery","authors":"Km Prottoy Shariar Piash , Noah Sprouse , Cole Hodges , Lian-Shin Lin , Oishi Sanyal","doi":"10.1016/j.memsci.2024.123438","DOIUrl":"10.1016/j.memsci.2024.123438","url":null,"abstract":"<div><div>This work focuses on understanding and analyzing the transport mechanisms of organics and nutrient ions (NH<sub>4</sub><sup>+</sup>, K<sup>+</sup>) through polyelectrolyte-based membranes, aimed at the selective recovery of nutrients from nutrient-rich resources such as anaerobic digestate. In this study, commercial nanofiltration (NF) membranes were modified by the layer-by-layer (LbL) deposition of oppositely charged polyelectrolytes, utilizing a wide range of parameters such as polyelectrolyte type, deposition pH, salt (NaCl) concentration, polymer cross-linking, etc. Such modifications resulted in membranes exhibiting characteristics that indicate a trade-off relationship between nutrient passage and nutrients/organics selectivity. Our findings suggest that nutrient passage is primarily facilitated by surface charge, while size-exclusion plays a vital role in retaining the organics. Ionically crosslinked polyelectrolyte multilayer (PEM) membranes exhibit superior nutrient passage (up to ∼30 % higher) compared to commercial NF membranes, while covalently crosslinked PEM membranes achieve higher (∼12 % higher) organics rejection. In addition, membranes with such covalent crosslinking exhibit intra-nutrient (NH<sub>4</sub><sup>+</sup>/K<sup>+</sup>) selectivity of ∼1.8, when tested with binary NH<sub>4</sub><sup>+</sup>/K<sup>+</sup> mixtures – a rather surprising membrane property, since both ions have similar hydrated radii. This study provides a fundamental framework of membrane design for selectively recovering nutrients from a variety of nutrient-rich sources.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"715 ","pages":"Article 123438"},"PeriodicalIF":8.4,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyamide membranes with tannic acid-ZIF-8 for highly permeable and selective ion-ion separation 含有单宁酸-ZIF-8 的聚酰胺膜，用于高渗透性和选择性离子-离子分离

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-20 DOI: 10.1016/j.memsci.2024.123435

Xing Lai , Hongxiang Zhang , Weiye Xu , Jian You , Huaiyin Chen , Yongzhao Li , Weihe Yu , Jianying Huang , Changfa Xiao , Yuekun Lai , Weilong Cai

{"title":"Polyamide membranes with tannic acid-ZIF-8 for highly permeable and selective ion-ion separation","authors":"Xing Lai , Hongxiang Zhang , Weiye Xu , Jian You , Huaiyin Chen , Yongzhao Li , Weihe Yu , Jianying Huang , Changfa Xiao , Yuekun Lai , Weilong Cai","doi":"10.1016/j.memsci.2024.123435","DOIUrl":"10.1016/j.memsci.2024.123435","url":null,"abstract":"<div><div>Highly permeable polyamide (PA) membranes with precise ion selection can be used for many energy-efficient chemical separations but are limited by membrane inefficiencies. Herein, polyphenol-mediated ZIF-8 nanoparticles with hydroxyl-rich hollow structure were synthesized by tannic acid tailored regulation. PA-based membranes with fast penetration, high retention, and precise Cl<sup>−</sup>/SO<sub>4</sub><sup>2−</sup> selection were then synthesized through spatially and temporally controlling interfacial polymerization with modified ZIF-8 nanoparticles (tZIF-8) as aqueous phase additives or as interlayers. The effects of the embedding position of tZIF-8 on the structure, morphology, physicochemical properties, and performance of PA-based membranes were explored through a sequence of characterization techniques. The results revealed that the PA-based membrane with tZIF-8 embedded in the PA layer could achieve a high water permeance of 24.8 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup> with a high retention of 99.4 % Na<sub>2</sub>SO<sub>4</sub> and a Cl<sup>−</sup>/SO<sub>4</sub><sup>2−</sup> selectivity of 141, which was superior to most state-of-the-art PA-based membranes. Comparatively, the Cl<sup>−</sup>/SO<sub>4</sub><sup>2−</sup> selection of the PA-based membrane with tZIF-8 embedded between the PA layer and the substrate was 136, while the water permeance was slightly enhanced to 28.2 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup>. Excitingly, the resulting membranes all exhibit superior antifouling properties and stability. Our facile strategy for tuning membrane microstructures provides new ideals into the development of highly permeable and excellently selective PA-based membranes for precise ion sieving.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"714 ","pages":"Article 123435"},"PeriodicalIF":8.4,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrathin membranes comprising polymers of intrinsic microporosity oligomers for high-performance organic solvent nanofiltration 用于高性能有机溶剂纳滤器的由本征微孔低聚物聚合物组成的超薄膜

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-20 DOI: 10.1016/j.memsci.2024.123436

Yehao Jin , Aiwen Zhang , Guanying Dong , Jingwei Hou , Junyong Zhu , Yatao Zhang

{"title":"Ultrathin membranes comprising polymers of intrinsic microporosity oligomers for high-performance organic solvent nanofiltration","authors":"Yehao Jin , Aiwen Zhang , Guanying Dong , Jingwei Hou , Junyong Zhu , Yatao Zhang","doi":"10.1016/j.memsci.2024.123436","DOIUrl":"10.1016/j.memsci.2024.123436","url":null,"abstract":"<div><div>Microporous organic polymers (MOPs) featuring chemically rigid backbones and permanent micropores are desirable for fabricating molecular selective membranes towards organics separation. However, coordinating facile film processing with high micropore persistence remains a challenge. In this paper, a low molecular weight polymers of intrinsic microporosity was rationally designed by precisely controlling the stoichiometric equilibrium of polymerization monomer. The polymers of intrinsic microporosity oligomers combine rigid and contorted structures with the aqueous solution processability, promoting the formation of 25-nm-thick polyaramide nanofilms with enhanced microporosity via support-free interfacial polymerization (SFIP). The resulting composite membranes have superior retention of small molecular solutes and high nonpolar and polar solvent permeances. Experiment and simulation results show that their excellent separation performance is due to substantially open and interconnected microporosity formed in the polymer networks based on rigid and contorted diamines as well as reduced film thickness. This study provides a new sight for using MOPs to construct high-microporosity membranes for precise and rapid molecular sieving.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"714 ","pages":"Article 123436"},"PeriodicalIF":8.4,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zwitterionic covalent organic framework membranes for efficient liquid molecular separations 用于高效液体分子分离的共价离子有机框架膜

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-19 DOI: 10.1016/j.memsci.2024.123433

Ye Zhang , Mengqing Liu , Yifan Wu , Jing Zhao , Guangfeng Liu , Shiyuan Zhou , Peng Wang , Peiyang Gu

{"title":"Zwitterionic covalent organic framework membranes for efficient liquid molecular separations","authors":"Ye Zhang , Mengqing Liu , Yifan Wu , Jing Zhao , Guangfeng Liu , Shiyuan Zhou , Peng Wang , Peiyang Gu","doi":"10.1016/j.memsci.2024.123433","DOIUrl":"10.1016/j.memsci.2024.123433","url":null,"abstract":"<div><div>Covalent organic frameworks (COFs) featuring uniform topological structure and devisable functionality have emerged as promising membrane materials. The design and precise manipulation of COF membranes with advanced spatial structure to achieve efficient liquid molecular separations are of great necessity. Herein, zwitterionic COF membranes have been in-situ fabricated on porous polymeric substrates using an interfacial polymerization modification strategy. The continuous defect-free COF membranes with two-dimensional in-plane dominant growth can be achieved by optimizing the fabrication parameters including reaction time, monomer concentration, and catalyst concentration. Subsequent zwitterionic modification thereon not only favors the formation of hydrophilic surface but also improves the sieving capability by sheltering effect. Attributed to the synergistic contribution, the optimized zwitterionic COF membrane possesses a superior separation factor of 2839 with the water content in the permeate up to 99.7 wt%, while maintaining a comparable permeation flux of 3309 g m<sup>−2</sup> h<sup>−1</sup> during the ethanol dehydration process, outperforming most of other representative membranes. Furthermore, the excellent durability of the zwitterionic COF membrane in the ethanol dehydration process and its efficient separation performance towards other alcohol dehydration systems demonstrate its potential practical applications. The easy scalability of the fabrication and regulation method offers crucial guidance for the engineering of advanced COF membranes in efficient liquid molecular separations.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"714 ","pages":"Article 123433"},"PeriodicalIF":8.4,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing separation performance of thin film nanocomposite membranes by self-etching of polydopamine-modified calcium carbonate during interfacial polymerization process 通过在界面聚合过程中自酸蚀聚多巴胺改性碳酸钙来提高薄膜纳米复合膜的分离性能

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-18 DOI: 10.1016/j.memsci.2024.123392

Xinxin Wei , Xuelin Wang , Kaiming Fan , Yanling Liu , Shengji Xia

{"title":"Enhancing separation performance of thin film nanocomposite membranes by self-etching of polydopamine-modified calcium carbonate during interfacial polymerization process","authors":"Xinxin Wei , Xuelin Wang , Kaiming Fan , Yanling Liu , Shengji Xia","doi":"10.1016/j.memsci.2024.123392","DOIUrl":"10.1016/j.memsci.2024.123392","url":null,"abstract":"<div><div>The acid-accepting and gas-generating properties, along with the formation of extensive nanovoids, make CaCO<sub>3</sub> nanoparticles attractive as sacrificial nanofillers for fabricating thin-film composite (TFN) nanofiltration membranes. However, challenges such as severe agglomeration and limited acid etching efficiency of the nanoparticles hinder the pursuit of superior membrane performance. In this study, the dispersion and compatibility of CaCO<sub>3</sub> nanoparticles within the membrane matrix were improved by modifying them with a polydopamine (PDA) coating. The abundant phenolic hydroxyl groups of PDA enhanced the hydrophilicity and negative charges of membrane surface. Additionally, the PDA capsule increased the etching extent of the CaCO<sub>3</sub> nanoparticles by improving the nanoparticle dispersion and generating additional acid, which created sufficient water channels within the polyamide layer. It was demonstrated that incorporating 45 μg/cm<sup>2</sup> of PDA-modified CaCO<sub>3</sub> nanoparticles doubled the water permeance to 16.7 LMH/bar, while maintaining a low molecular weight cut-off of 249 Da and achieving rejections over 90 % for five types of per- and polyfluorinated substances. The PDA modification also overcame the membrane stability issue caused by the agglomerated CaCO<sub>3</sub> nanoparticles. This study provides a novel strategy for applying properly modified self-etching nanofillers in TFN membrane development, showing great potential for water treatment applications.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"715 ","pages":"Article 123392"},"PeriodicalIF":8.4,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-channeled halloysite nanotube-blended polybenzimidazole separators for enhancing lithium-ion battery performance 用于提高锂离子电池性能的多通道霍洛石纳米管混合聚苯并咪唑隔膜

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-18 DOI: 10.1016/j.memsci.2024.123417

Qian Zhou , Shabab Hussain , Jinwu Peng , Bin Zhang , Lei Wang

{"title":"Multi-channeled halloysite nanotube-blended polybenzimidazole separators for enhancing lithium-ion battery performance","authors":"Qian Zhou , Shabab Hussain , Jinwu Peng , Bin Zhang , Lei Wang","doi":"10.1016/j.memsci.2024.123417","DOIUrl":"10.1016/j.memsci.2024.123417","url":null,"abstract":"<div><div>The microscopic transport mode of lithium ions in the separator is crucial for solving the problem of irregular lithium dendrite growth, thereby enhancing the safety of battery operation, and it also has a positive impact on the electrochemical performance of the battery. Furthermore, the heat resistance of the separator is an important indicator for measuring the performance of the separator and the safety of battery usage. In this work, we have introduced sulfonated and lithiated halloysite nanotubes into a high-temperature-resistant OPBI matrix through an easily implementable NIPS, resulting in a high-temperature-resistant separator with multiple lithium-ion micro-transport morphologies. Lithium ions can shuttle through the halloysite nanotube pores, negatively charged sulfonate groups on the surface, and larger finger-like pores formed by NIPS within the separator, creating a high and uniform lithium-ion flux that prevents excessive localized ion flow leading to the aggressive growth of lithium dendrites. According to the characterization data, this separator exhibits relatively satisfactory performance, such as an ionic conductivity of 1.82 mS cm<sup>−1</sup>, a porosity of 82 %, an electrolyte uptake of 397 %, and no significant physical shrinkage at 200 °C. Additionally, the cells assembled using the OPBI@sHNT-Li20 separator delivers higher discharge capacity (164.92 mAh·g<sup>−1</sup>), more stable cycle, superior rate performance. So the OPBI@sHNT-Li separator is expected to play an active role in improving the safety and electrochemical performance of lithium-ion batteries.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"714 ","pages":"Article 123417"},"PeriodicalIF":8.4,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ growth of three-dimensional copper-based catalyst in 4A zeolite/PES mixed matrix membrane for Fenton-like degradation of phenol 在 4A 沸石/聚醚砜混合基质膜中原位生长三维铜基催化剂，用于苯酚的芬顿降解

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2024-10-18 DOI: 10.1016/j.memsci.2024.123407

Jing Lv , Han Zhang , Hui Ye, Xiaojian Fu, Shurui Han, Guodong Yang, Jinli Zhao, Lizhi Zhao, Qingping Xin, Ligang Lin, Xiaoli Ding, Hong Li, Yuzhong Zhang

{"title":"In-situ growth of three-dimensional copper-based catalyst in 4A zeolite/PES mixed matrix membrane for Fenton-like degradation of phenol","authors":"Jing Lv , Han Zhang , Hui Ye, Xiaojian Fu, Shurui Han, Guodong Yang, Jinli Zhao, Lizhi Zhao, Qingping Xin, Ligang Lin, Xiaoli Ding, Hong Li, Yuzhong Zhang","doi":"10.1016/j.memsci.2024.123407","DOIUrl":"10.1016/j.memsci.2024.123407","url":null,"abstract":"<div><div>Fenton-like membrane reactors applied to water purification provide a broad solution to address the challenges of catalyst recovery, low reaction efficiency, and high mass transfer resistance in heterogeneous batch reactions. Zeolites as nanocatalyst carriers are promising candidates for advanced purification membranes. Herein, we report a composite catalytic membrane (4A-Cu/PES) for Fenton-like degradation of phenol wastewater, fabricated by in-situ growth of copper nanoflowers on a 4A zeolite/polyethersulfone (PES) mixed matrix membrane, forming a three-dimensional core-shell nanostructured catalyst. Compared with the conventional method, the in-situ growth prevents the copper catalyst from being covered by the polymer and significantly increases the copper loading (3.97 %), thus ensuring efficient catalytic reactions within the membrane pores. Meanwhile, the porous structure of zeolite provides a large specific surface area, facilitating uniform dispersion of copper ions during <em>in situ</em> growth of the catalyst and providing abundant active sites. The membrane exhibited a phenol degradation rate of 93.9 % at pH 6, significantly broadening the pH applicability of the Fenton reaction. Hydroxyl radicals (·OH) were identified as the primary active species in the 4A-Cu/PES-H<sub>2</sub>O<sub>2</sub> system. Moreover, the membrane retained high catalytic activity after five cycles, demonstrating excellent stability. This work provides important insights for designing efficient and stable Fenton-like zeolite catalytic membranes.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"714 ","pages":"Article 123407"},"PeriodicalIF":8.4,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142534654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0