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GaPt alloy in HZSM ‐5 for highly stable ethane dehydroaromatization 高稳定乙烷脱氢芳构化的HZSM - 5 GaPt合金
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-12 DOI: 10.1002/aic.70696
Lizhi Wu, Yuyan Gan, Yu Tang, Wei Lin, Xing Huang, Peng Wang, Huibo Zhao, Hua Yang, Fan Bo, Sen Wang, Prasert Reubroycharoen, Thachapan Atchimarungsri, Li Tan
{"title":"GaPt alloy in HZSM ‐5 for highly stable ethane dehydroaromatization","authors":"Lizhi Wu, Yuyan Gan, Yu Tang, Wei Lin, Xing Huang, Peng Wang, Huibo Zhao, Hua Yang, Fan Bo, Sen Wang, Prasert Reubroycharoen, Thachapan Atchimarungsri, Li Tan","doi":"10.1002/aic.70696","DOIUrl":"https://doi.org/10.1002/aic.70696","url":null,"abstract":"The dehydroaromatization of ethane to aromatics is a highly attractive yet challenging route for valorizing the second‐most abundant component of natural gas. Here, we report bimetallic xGa0.8Pt/HZSM‐5 catalysts that exhibit markedly enhanced stability and coke resistance compared to their monometallic counterparts. The optimal 0.5Ga0.8Pt/HZSM‐5 catalyst affords an initial ethane conversion of 52% and an aromatics space–time yield of 5.4 mmol <jats:sub>arom</jats:sub> ·g <jats:sub>cat</jats:sub> <jats:sup>−1</jats:sup> ·h <jats:sup>−1</jats:sup> , with an exceptionally low deactivation rate constant of 0.007 h <jats:sup>−1</jats:sup> over 10 h. An optimal Ga/Pt ratio fosters a strong synergistic effect, as evidenced by gas adsorption–desorption and <jats:italic>in situ</jats:italic> spectroscopic studies. Crucially, active site characterization reveals that the GaPt alloy formed in this catalyst works in concert with the acid sites of HZSM‐5, enhancing both dehydrogenation and aromatization while simultaneously suppressing coke formation. These findings provide direct evidence for the promotional role of bimetallic alloy sites and offer a rational strategy for designing stable Pt‐based catalysts for light alkane dehydroaromatization.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"28 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Mechanism‐based kinetic modeling of standard NH 3 ‐ SCR over Cu‐ SSZ ‐13 catalysts using experimentally determined parameters 基于机理的nh3 - SCR在Cu - SSZ - 13催化剂上的动力学模型
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-12 DOI: 10.1002/aic.70685
Guangxin Tian, Meiqing Shen, Shuhuan Wang, Yilin Wang, Peng Cheng, Zhiying Liu, Chunjuan Zhang, Shuohan Yang, Feng Gao, Gurong Shen
{"title":"Mechanism‐based kinetic modeling of standard NH 3 ‐ SCR over Cu‐ SSZ ‐13 catalysts using experimentally determined parameters","authors":"Guangxin Tian, Meiqing Shen, Shuhuan Wang, Yilin Wang, Peng Cheng, Zhiying Liu, Chunjuan Zhang, Shuohan Yang, Feng Gao, Gurong Shen","doi":"10.1002/aic.70685","DOIUrl":"https://doi.org/10.1002/aic.70685","url":null,"abstract":"Cu‐SSZ‐13 is a key catalyst for NH <jats:sub>3</jats:sub> ‐SCR in mobile aftertreatment systems, yet reliable kinetic modeling remains challenging due to the complex interplay among Cu speciation, NH <jats:sub>3</jats:sub> solvation, and oxidation side reactions. In this work, NO oxidation, NH <jats:sub>3</jats:sub> oxidation, and standard SCR over Cu‐SSZ‐13 catalysts with varying Cu loadings were systematically investigated, and a mechanism‐informed kinetic model was developed using experimentally derived kinetic parameters. The results show that NO oxidation and NH <jats:sub>3</jats:sub> oxidation are primarily associated with multinuclear Cu species, whereas standard SCR mainly proceeds on exchanged Cu ions through Cu <jats:sup>II</jats:sup> /Cu <jats:sup>I</jats:sup> redox cycling. Both NH <jats:sub>3</jats:sub> oxidation and standard SCR exhibit distinct low‐ and high‐temperature kinetic regimes associated with NH <jats:sub>3</jats:sub> ‐solvated mobile Cu species and framework‐bound immobile Cu species, respectively. The model successfully reproduces experimental reaction behavior across various Cu loadings and temperatures, demonstrating the effectiveness of experimentally constrained kinetic modeling for SCR reactor simulation and aftertreatment system optimization.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"31 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Breaking single‐ion limits: Charge compensation enables concurrent Li/Br recovery and LiBr enrichment in produced water 打破单离子限制:电荷补偿使产水中Li/Br同时回收和LiBr富集
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-12 DOI: 10.1002/aic.70683
Lu Zhao, Hai‐Xia Zhao, Meng Li, Wei Yang, Zhi‐Yuan Guo, Lei Wang, Panpan Zhang, Jing Wang, Zhi‐Yong Ji
{"title":"Breaking single‐ion limits: Charge compensation enables concurrent Li/Br recovery and LiBr enrichment in produced water","authors":"Lu Zhao, Hai‐Xia Zhao, Meng Li, Wei Yang, Zhi‐Yuan Guo, Lei Wang, Panpan Zhang, Jing Wang, Zhi‐Yong Ji","doi":"10.1002/aic.70683","DOIUrl":"https://doi.org/10.1002/aic.70683","url":null,"abstract":"Produced water from oil and gas fields contains Li <jats:sup>+</jats:sup> and Br <jats:sup>−</jats:sup> resources, but their low concentrations and complex coexisting ions make efficient recovery difficult. A charge‐compensated dual‐electrode system is developed for simultaneous Li <jats:sup>+</jats:sup> /Br <jats:sup>−</jats:sup> recovery and LiBr enrichment. LiMn <jats:sub>2</jats:sub> O <jats:sub>4</jats:sub> (LMO) serves as the Li <jats:sup>+</jats:sup> capture electrode, while rGO <jats:sub>20</jats:sub> ‐BOB is used for Br <jats:sup>−</jats:sup> capture. Introducing rGO regulates the growth and assembly of BiOBr (BOB) nanosheets, forming a microflower‐like structure with improved Br <jats:sup>−</jats:sup> accessibility and conductivity. In the optimized L <jats:sub>1−x</jats:sub> MO/rGO <jats:sub>20</jats:sub> ‐BOB <jats:sub>1−x</jats:sub> electrode system, Li <jats:sup>+</jats:sup> and Br <jats:sup>−</jats:sup> extraction capacities reach 25.1 and 137.1 mg g <jats:sup>−1</jats:sup> , respectively. In actual produced water from Zigong, Li <jats:sup>+</jats:sup> and Br <jats:sup>−</jats:sup> adsorption capacities reach 21.3 and 20.9 mg g <jats:sup>−1</jats:sup> , and approximately 0.5 mmol LiBr is obtained in a single adsorption/desorption cycle. This system shows potential for coupling efficient Li <jats:sup>+</jats:sup> /Br <jats:sup>−</jats:sup> recovery with LiBr enrichment from complex produced water, offering a simplified route for high‐value utilization of oil and gas fields produced water.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"33 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Gravity‐driven double emulsion droplet formation: Interfacial dynamics and stability control 重力驱动双乳液滴形成:界面动力学和稳定性控制
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-10 DOI: 10.1002/aic.70653
Wentao Hou, Chen Yang, Haibo Zhu
{"title":"Gravity‐driven double emulsion droplet formation: Interfacial dynamics and stability control","authors":"Wentao Hou, Chen Yang, Haibo Zhu","doi":"10.1002/aic.70653","DOIUrl":"https://doi.org/10.1002/aic.70653","url":null,"abstract":"Gravity‐driven double emulsion droplet formation in a hydrocarbon‐ammonia column is industrially important yet poorly understood. By combining high‐speed imaging with adaptive‐mesh‐refinement volume‐of‐fluid simulations, a distinct oil‐coating route is revealed: a preformed hydrosol droplet crosses the macroscale oil–aqueous interface and entrains oil to form the outer shell, whose trailing oil bridge undergoes necking and pinch‐off. During oil‐coating, reserved droplet/wake momentum and constant gravity promote penetration, whereas capillarity, buoyancy, and viscous dissipation resist it. Successful encapsulation requires penetration to persist until sustained necking begins; earlier reversal causes rebound‐type failure. By affecting driving contribution or resistance, increasing hydrosol density or decreasing oil viscosity facilitates oil‐coating, while droplet size reduction narrows hydrodynamic margin for success. As practical tuning approaches, replacing paraffin with lower‐viscosity kerosene raised consecutive successes from &lt;30 to &gt;500; locally enriching surfactant to further mitigate capillary constraint enabled 212 consecutive formations for size‐reduced inner droplets (2.5 mm equivalent diameter).","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"9 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149151395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Enhancement of ternary extractive distillation via the ionic liquid and deep eutectic solvent from multi‐scale insights 离子液体和深度共晶溶剂对三元萃取精馏的改进
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-09 DOI: 10.1002/aic.70675
Ao Yang, Juncong Wu, Wei Deng, Zong Yang Kong, Zihao Wang, Tao Shi, Weifeng Shen
{"title":"Enhancement of ternary extractive distillation via the ionic liquid and deep eutectic solvent from multi‐scale insights","authors":"Ao Yang, Juncong Wu, Wei Deng, Zong Yang Kong, Zihao Wang, Tao Shi, Weifeng Shen","doi":"10.1002/aic.70675","DOIUrl":"https://doi.org/10.1002/aic.70675","url":null,"abstract":"To achieve the goals of energy conservation and carbon reduction in chemical production, this study aims to find a novel green entrainer to replace traditional organic entrainers. First, ionic liquids (ILs) and deep eutectic solvents (DESs) that balance environmental performance and separation efficiency were designed and screened using ECOSAR toxicity assessment and the COSMO‐RS model. Additionally, the separation mechanism of the selected entrainers toward the azeotropic systems was investigated through molecular thermodynamics. Finally, the separation performance of single entrainers and mixed entrainers was verified through process simulation. Economic benefits and environmental performance were used as evaluation metrics and the results showed that the optimized process scheme using the mixed entrainer ([DCE‐O][MMMIM] + TMAH:NHS (2:1)) achieved a 20.97% cost saving and a 29.91% reduction in carbon emissions compared to the dimethyl sulfoxide (DMSO) system. Its performance was also superior to that of single ILs or DESs.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"86 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149130474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Inverse adsorption strategy for n ‐hexane ultra‐deep purification on Zn‐ LTA zeolite via pressure swing adsorption 变压吸附在Zn - LTA沸石上的正己烷超深度净化反吸附策略
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-09 DOI: 10.1002/aic.70682
Lei Hu, Zhikang Wu, Xiaoying Zhou, Junjie Peng, Guang Miao, Xinxin Li, Yanze Du, Chong Peng, Jing Xiao
{"title":"Inverse adsorption strategy for\u0000 n\u0000 ‐hexane ultra‐deep purification on Zn‐\u0000 LTA\u0000 zeolite via pressure swing adsorption","authors":"Lei Hu, Zhikang Wu, Xiaoying Zhou, Junjie Peng, Guang Miao, Xinxin Li, Yanze Du, Chong Peng, Jing Xiao","doi":"10.1002/aic.70682","DOIUrl":"https://doi.org/10.1002/aic.70682","url":null,"abstract":"The production of ultra‐high purity <jats:italic>n</jats:italic> ‐hexane ( <jats:italic>n</jats:italic> HEX, ≥99.99%) is critical for electronics industry, yet its purification from branched and cyclic isomers remains challenging. Herein, we develop a Zn <jats:sup>2+</jats:sup> ‐exchanged LTA zeolite (0.05Zn‐LTA), which forms hierarchical micro‐mesoporous structure at Zn <jats:sup>2+</jats:sup> exchange degree of 78%. This unique architecture enhances <jats:italic>n</jats:italic> HEX diffusion by approximately two orders of magnitude (from 3.6 × 10 <jats:sup>−5</jats:sup> to 6.7 × 10 <jats:sup>−3</jats:sup> s <jats:sup>−1</jats:sup> ). 0.05Zn‐LTA exhibits an <jats:italic>n</jats:italic> HEX uptake of 155 mg g <jats:sup>−1</jats:sup> at 298 K and <jats:italic>P</jats:italic> / <jats:italic>P</jats:italic> <jats:sub>0</jats:sub> = 0.9, with high selectivity and excellent cyclic stability. Predicted high‐temperature adsorption isotherms and breakthrough curves confirm its excellent dynamic capacity for <jats:italic>n</jats:italic> HEX at 473 K. To mimic its performance in <jats:italic>n</jats:italic> HEX purification, the pressure swing adsorption process (PSA‐4S‐PE) is developed, upgrading <jats:italic>n</jats:italic> HEX purity from 99.1% to 99.9929%, with 96.05% recovery and productivity of 1.05 mol kg <jats:sup>−1</jats:sup> h <jats:sup>−1</jats:sup> . This study demonstrates 0.05Zn‐LTA as a promising adsorbent for energy‐efficient PSA to produce electronic‐grade <jats:italic>n</jats:italic> HEX through the reverse adsorption of bulk compounds.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"11 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149151396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Dynamic carbon exchange at the MoO x ‐C interface for reverse water‐gas shift reaction 在MoO - x - C界面上的动态碳交换反水气转移反应
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-06 DOI: 10.1002/aic.70676
Xiangtingxing Yuan, Wanting Su, Chenxi Han, Yidi Shang, Yini Li, Jiawei Zhou, Binran Zhao
{"title":"Dynamic carbon exchange at the MoO x ‐C interface for reverse water‐gas shift reaction","authors":"Xiangtingxing Yuan, Wanting Su, Chenxi Han, Yidi Shang, Yini Li, Jiawei Zhou, Binran Zhao","doi":"10.1002/aic.70676","DOIUrl":"https://doi.org/10.1002/aic.70676","url":null,"abstract":"The reverse water‐gas shift (RWGS) reaction is a key route for CO <jats:sub>2</jats:sub> utilization, yet catalysts combining high activity, selectivity, long‐term stability, and cost‐effectiveness remain challenging. Herein, MoO <jats:sub>x</jats:sub> ‐C/Al <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> catalysts were constructed using dielectric barrier discharge (DBD) plasma technology, and interfacial Mo‐C bonds impart carbide‐like catalytic characteristics. Catalytic evaluation and kinetic analyses demonstrate that MoO <jats:sub>x</jats:sub> ‐C/Al <jats:sub>2</jats:sub> O <jats:sub>3</jats:sub> (1:1) exhibits the optimal RWGS performance without pretreatment, achieving a CO formation rate of 251.08 mmol·g <jats:sub>cat</jats:sub> <jats:sup>−1</jats:sup> ·h <jats:sup>−1</jats:sup> with &lt;1% deactivation over 100 h at 600°C. The performance is mainly attributed to the Mo‐C/O <jats:sub>v</jats:sub> interface, which balances CO <jats:sub>2</jats:sub> activation, H <jats:sub>2</jats:sub> activation, and CO desorption. <jats:sup>13</jats:sup> CO <jats:sub>2</jats:sub> isotope labeling and <jats:sup>13</jats:sup> CO <jats:sub>2</jats:sub> / <jats:sup>12</jats:sup> CO <jats:sub>2</jats:sub> isotopic exchange experiments further reveal dynamic carbon exchange between interfacial carbon species and gaseous reactants, thereby promoting CO formation. These findings identify a stable Mo‐C/O <jats:sub>v</jats:sub> interface and dynamic carbon cycling as key design features for efficient and durable RWGS catalysts.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"72 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Solution‐processable cross‐linked poly(ethylene oxide) ultrathin composite membranes via ultraviolet polymerization for CO 2 capture 通过紫外聚合,溶液可加工交联聚环氧乙烷超薄复合膜,用于二氧化碳捕获
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-06 DOI: 10.1002/aic.70684
Bangkai Li, Chang Chen, Meigui He, Mengfan Ren, Jiangquan Chen, Xueqing Yao, Jing Zhao, Wanqin Jin
{"title":"Solution‐processable cross‐linked poly(ethylene oxide) ultrathin composite membranes via ultraviolet polymerization for CO 2 capture","authors":"Bangkai Li, Chang Chen, Meigui He, Mengfan Ren, Jiangquan Chen, Xueqing Yao, Jing Zhao, Wanqin Jin","doi":"10.1002/aic.70684","DOIUrl":"https://doi.org/10.1002/aic.70684","url":null,"abstract":"Cross‐linked poly(ethylene oxide) (PEO) synthesized via free radical polymerization is one of the most promising polymer membrane materials for CO <jats:sub>2</jats:sub> capture. However, it remains a major challenge to obtain soluble cross‐linked PEO polymers via facile and controllable methods, so as to fabricate solution‐coated ultrathin composite membranes with high CO <jats:sub>2</jats:sub> permeance. To address this issue, we proposed an intermittent ultraviolet (UV) irradiation strategy that enables precise control over the free radical polymerization process of PEO monomers and improves polymerization uniformity. Consequently, we successfully synthesized a soluble PEO polymer sufficiently cross‐linked and fabricated it into an ultrathin (~45 nm), defect‐free selective layer via simple solution coating methods. The optimized membrane achieves an ultrahigh CO <jats:sub>2</jats:sub> permeance of 3074 gas permeation units (GPU), along with a desirable CO <jats:sub>2</jats:sub> /N <jats:sub>2</jats:sub> selectivity of 38.3, outperforming current cutting‐edge membrane materials. More importantly, this membrane exhibits good scalability and operational stability, offering great promise for continuous large‐scale fabrication and practical carbon capture applications.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"15 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Heterogeneous wettability reverse osmosis membranes enabled by self‐adaptive polymer brushes for fouling resistance 非均相润湿性反渗透膜,由自适应聚合物刷实现抗污性
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-02 DOI: 10.1002/aic.70679
Mengxin Li, Fayu Miao, Liangjun Yue, Deqing Shi, Qiyou Liu, Xinliang Liu, Ming Wang, Yingfei Hou, Yunxia Hu
{"title":"Heterogeneous wettability reverse osmosis membranes enabled by self‐adaptive polymer brushes for fouling resistance","authors":"Mengxin Li, Fayu Miao, Liangjun Yue, Deqing Shi, Qiyou Liu, Xinliang Liu, Ming Wang, Yingfei Hou, Yunxia Hu","doi":"10.1002/aic.70679","DOIUrl":"https://doi.org/10.1002/aic.70679","url":null,"abstract":"Membrane fouling remains a central constraint on the efficiency, durability, and sustainability of reverse osmosis (RO) desalination. We present a self‐adaptive membrane with heterogeneous wettability, created by photoinitiated radical polymerization to graft zwitterionic (hydrophilic) and fluorinated (oleophobic) brushes. The self‐adaptive surface undergoes environmentally triggered polymer segregation, enabling autonomous adjustment of local surface chemistry, forming hydrophilic and low‐surface‐energy domains. The hydrophilic domain facilitates water transport, achieving a superior water permeance of 3.4 L m <jats:sup>−2</jats:sup> h <jats:sup>−1</jats:sup> bar <jats:sup>−1</jats:sup> while maintaining 99.0% NaCl rejection. Crucially, the low‐surface‐energy domain effectively inhibits interface interaction to prevent foulant accumulation and accelerate foulant detachment, which confers excellent broad‐spectrum resistance. The low‐surface‐energy domain inhibits foulant adhesion and accelerates detachment, yielding flux recovery ratios of 91.0% for oil‐in‐water emulsion and 99.4% for petrochemical wastewater, substantially outperforming commercial membranes. This dynamic self‐adaptive wettability reveals a new antifouling mechanism and provides a design framework for robust desalination membranes.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"11 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149085991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Time–space synchronized cross‐linked polydimethylsiloxane membranes for organophilic pervaporation 用于亲有机渗透蒸发的时空同步交联聚二甲基硅氧烷膜
IF 3.7 3区 工程技术
AIChE Journal Pub Date : 2026-10-02 DOI: 10.1002/aic.70674
Sinan Cheng, Shuanbao Yang, Hui Xu, Tieyan Li, Qianxi Yang, Wenjing Han, Chunxi Li, Yingzhou Lu, Hongwei Fan, Hong Meng
{"title":"Time–space synchronized cross‐linked polydimethylsiloxane membranes for organophilic pervaporation","authors":"Sinan Cheng, Shuanbao Yang, Hui Xu, Tieyan Li, Qianxi Yang, Wenjing Han, Chunxi Li, Yingzhou Lu, Hongwei Fan, Hong Meng","doi":"10.1002/aic.70674","DOIUrl":"https://doi.org/10.1002/aic.70674","url":null,"abstract":"The preparation of versatile polydimethylsiloxane (PDMS) membrane largely relies on the pre‐crosslinking of the casting solution, while membrane structural defects caused by its elevated viscosity over time pose a major challenge. Herein, we employ the time–space synchronized cross‐linking (TSSC) strategy utilizing a vapor–liquid interface‐confined cross‐linking reaction method to ensure all cross‐linking reaction sites initiate and complete simultaneously across the entire membrane surface, resulting in a remarkably consistent reaction degree at any location on the membrane. The TSSC PDMS membranes possess larger free volume, more uniformly sized pores, and higher cross‐linking degree, exhibiting a flux of 3400 g m <jats:sup>−2</jats:sup> h <jats:sup>−1</jats:sup> and a separation factor of 8.8 in separating a 5 wt% ethanol–water solution, showing a 36% increase in flux than conventional premixed stepwise cross‐linked PDMS membrane. This strategy successfully the large‐scale fabrication of a 2500 cm <jats:sup>2</jats:sup> TSSC PDMS membrane with stable performance, exhibiting significant potential for organic recovery.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"24 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2026-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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