Chemical Engineering Journal最新文献_第7页

CFD-DEM investigation of vortex characteristics within the hydraulic jet pumps in the vertical hydraulic conveying process

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.159576

Xiaojiang Wen, Lingxiao Yin, Yingke Liu, Jianhong Kang, Man Yuan, Lingna Zheng, Gavin Tabor, Chuang Wen

{"title":"CFD-DEM investigation of vortex characteristics within the hydraulic jet pumps in the vertical hydraulic conveying process","authors":"Xiaojiang Wen, Lingxiao Yin, Yingke Liu, Jianhong Kang, Man Yuan, Lingna Zheng, Gavin Tabor, Chuang Wen","doi":"10.1016/j.cej.2025.159576","DOIUrl":"https://doi.org/10.1016/j.cej.2025.159576","url":null,"abstract":"Using a hydraulic jet pump (HJP) for coarse particle transport is a promising method for hydraulic conveying in deep coal mining. In this work, a semi-resolved CFD-DEM model was developed to simulate the hydraulic conveying of coarse particles by the HJP. The diffusion averaging method was applied to determine the distributions of solid volume fraction and momentum sources in the fluid domain. The study identifies four types of vortices in the HJP: the fluid entraining vortex, fluid rotating vortex, fluid attacking vortex, and fluid mixing vortex. Among these, the fluid mixing vortex and fluid attacking vortex are influenced by the mixer-nozzle width. Moreover, the fluid attacking vortex plays a vital role in the regime transition of the HJP jet, leading to variations in its hydraulic performance, including primary and secondary fluxes, particle conveying rate, and pressure distributions. Finally, an empirical width coefficient representing the mixer-nozzle width was proposed based on the findings. These new insights will guide the application of the HJP in the coarse particle hydraulic conveying.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"67 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258210","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

Evolution of mechanisms in the structural design of low-filler electromagnetic wave absorption materials

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.160343

Lichao Zou, Gehuan Wang, Fulin Liang, Yue Zhuo, Chao Peng, Zhigao Liu, Quanping Yuan, Jiabin Chen

引用次数: 0

In situ mapping the electrocatalytic production of Hydrogen peroxide by reflection absorption imaging

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.160383

Dongxu Chen, Lele Cui, Ling Lu, Xunchu Wang, Tian Yan, Zhenghua Zhang, Jingyu Xi, Le Liu

{"title":"In situ mapping the electrocatalytic production of Hydrogen peroxide by reflection absorption imaging","authors":"Dongxu Chen, Lele Cui, Ling Lu, Xunchu Wang, Tian Yan, Zhenghua Zhang, Jingyu Xi, Le Liu","doi":"10.1016/j.cej.2025.160383","DOIUrl":"https://doi.org/10.1016/j.cej.2025.160383","url":null,"abstract":"Hydrogen peroxide (H2O2), as an environmental-friendly and pollution-free oxidant, plays an irreplaceable role in various fields. Electrochemical two-electron oxygen reduction has garnered extensive attention as a safe, green, and sustainable alternative for H2O2 production, with its yield being directly related to the performance of the electrode materials. Conventional electrode performance characterization methodologies, however, are limited to overall detection and lack the capability to detect H2O2 concentration (c(H2O2)) distribution. To overcome this bottleneck, a reflection absorption imaging (RAI) method is proposed herein to map the c(H2O2) distribution on the electrode surface, which enables real time and in situ visualization of differences across various locations on the electrode surface. A calibration process is conducted to correlate light intensity data with c(H2O2), while the feasibility of this method is verified through RAI and traditional UV–Vis testing on current mainstream membrane electrode platforms, including bare commercial gas diffusion layer (GDL) and GDL-supported gas diffusion electrodes with either hydrophilic or hydrophobic catalyst layers. Furthermore, this methodology was leveraged to in situ monitor and elucidate the H2O2 production behavior at the interface of a recently constructed structurally discontinuous carbon film electrode. This approach holds promise in guiding the design of electrode architectures with superior H2O2 production performance.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"20 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258131","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

Self-Assembled arachidonic acid Nanomicelles for Radiation-Induced ferroptosis to enhance tumor Radioimmunotherapy

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.160231

Jiadong Wang, Yueyue Jing, Li Liu, Pengfei Xing, Zheng Deng, Yifan Zhang, Xirui Wu, Bin Hu, Cai Zhang, Xianglong Sun, Yuqian Liu, Jiawei Liu, Junjun Zhang, Guangbao Yang

{"title":"Self-Assembled arachidonic acid Nanomicelles for Radiation-Induced ferroptosis to enhance tumor Radioimmunotherapy","authors":"Jiadong Wang, Yueyue Jing, Li Liu, Pengfei Xing, Zheng Deng, Yifan Zhang, Xirui Wu, Bin Hu, Cai Zhang, Xianglong Sun, Yuqian Liu, Jiawei Liu, Junjun Zhang, Guangbao Yang","doi":"10.1016/j.cej.2025.160231","DOIUrl":"https://doi.org/10.1016/j.cej.2025.160231","url":null,"abstract":"Radiotherapy (RT) induces cancer cell death primarily through apoptosis, a non-inflammatory process that triggers a limited antitumor immune response, making it insufficient to prevent tumor metastasis and recurrence. Ferroptosis is a form of cell death caused by the peroxidation of phospholipids (PLs) containing polyunsaturated fatty acid (PUFA) in the cell membrane. It has been reported that RT can induce ferroptosis, but the low PUFA content in tumors limits the ability of radiation to effectively induce ferroptosis. Herein, we designed a self-assembled nanomicelle (ADM) to deliver arachidonic acid (AA, a type of PUFA) to enhance radiation-induced ferroptosis. Radiation can upregulate acyl-CoA synthetase long chain family member 4 (ACSL4), which converts the abundant AA taken up by cancer cells into AA-PLs and incorporates them into cell membrane. More importantly, reactive oxygen species (ROS) generated by RT promote the peroxidation of PLs containing high levels of PUFA in the cell membrane, thereby inducing ferroptosis and subsequently triggering an effective antitumor immune response. Moreover, encapsulating the Toll-like receptor agonist resiquimod in ADM further potentiates systemic antitumor immunity, significantly inhibiting lung metastasis of 4 T1 breast cancer and preventing tumor rechallenge. Our work presents a new strategy to enhance RT-induced ferroptosis by developing a nanoplatform capable of delivering PUFA.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"11 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258165","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

Green procedure for grafting polypeptide onto cellulose nanofibers

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.160349

Farida Baraka, José Ignacio Santos, Mahsa Mousavi Langari, Iván Rivilla, Jalel Labidi

{"title":"Green procedure for grafting polypeptide onto cellulose nanofibers","authors":"Farida Baraka, José Ignacio Santos, Mahsa Mousavi Langari, Iván Rivilla, Jalel Labidi","doi":"10.1016/j.cej.2025.160349","DOIUrl":"https://doi.org/10.1016/j.cej.2025.160349","url":null,"abstract":"This study presents an innovative green method to graft polypeptide onto cellulose nanofibers (CNFs) by polymerizing N-carboxyanhydrides (NCA) using CNFs’ hydroxyl groups present on the surface as initiators. The grafting of NCA onto CNFs was performed using choline chloride: formic acid (ChCl: FA) deep eutectic solvent (DES) as reaction medium. In recent years, DESs show great potential to replace traditional solvents in chemical reactions. Fourier transform infrared spectroscopy (FTIR), cross-polarization magic angle spinning (CP/MAS) 13C- nuclear magnetic resonance (NMR), elemental analysis, and X-ray photoelectron spectroscopy (XPS) confirmed the grafting of surfacic CNFs’ hydroxyl groups. The grafting rate gradually increase as function of the reaction time to reach 12.2% after three hours of reaction. Scanning electron microscopy (SEM) showed that modified nanofibers are enveloped and covered polypeptides, resulting in an amorphous, wrinkled rough surface, and folded morphologies. Coupling SEM analysis with energy dispersive X-ray (EDX) of the nanofiber’s surface revealed the presence of nitrogen, which confirms the grafting and the growing of NCA onto CNF. Finally, nanopapers prepared from NCA-grafted CNFs exhibit superior hydrophobicity and mechanical performance as compared to their unmodified analog.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"139 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258169","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

Nb atom-mediated activation and strong homogeneous coupling of amorphous Mo-N clusters boosting sodium-ion storage

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.160367

Jiaqi Li, Jinhang Zhou, Guo Cheng, Fanyan Zeng, Taiyang Wang, Wenxiu He, Hongbo Huang, Meilan Xie, Dui Ma, Zhaohui Hou

{"title":"Nb atom-mediated activation and strong homogeneous coupling of amorphous Mo-N clusters boosting sodium-ion storage","authors":"Jiaqi Li, Jinhang Zhou, Guo Cheng, Fanyan Zeng, Taiyang Wang, Wenxiu He, Hongbo Huang, Meilan Xie, Dui Ma, Zhaohui Hou","doi":"10.1016/j.cej.2025.160367","DOIUrl":"https://doi.org/10.1016/j.cej.2025.160367","url":null,"abstract":"Specific active sites and relatively restricted ion transport paths in crystalline electrodes greatly limit the Na+ storage properties. To effectively utilize the storage potential of these electrodes, integrating atomic mediation with strong homogeneous coupling in amorphous clusters, this study synthesizes N-doped carbon nanosheet-spheres with Nb atom-activated amorphous Mo-N clusters (Nb/Mo-N@NC). The clusters exhibit high storage capacity and transport efficiency for Na+ with abundant N-vacancies, isotropic ion transport channels, and efficient atomic utilization. Theoretical calculations confirm that the mediation of unoccupied orbital-rich Nb atoms can induce the electronic reconfiguration and d-p orbital hybridization of the clusters, and the strong homogeneous coupling can enhance the Na+ adsorption energy and enrich the electrochemically active sites, thereby further boosting Na+ storage of the clusters. Additionally, the in-situ carbon composite strongly guarantees the structural stability and conductivity of the clusters. Benefiting from these advantages, Nb/Mo-N@NC exhibits outstanding Na+ storage performance as an anode: achieving 540.9 mAh/g reversible capacity at 0.1 A/g and retaining 264.1 mAh/g after 5000 cycles at 10.0 A/g, while showcasing outstanding practical application potential. These results indicate that the atom-mediating and homogeneous coupling of amorphous clusters contributes to Na+ storage, shedding important light on the design of high-performance anodes.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"26 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258132","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

Enhancement of electrocaloric strength by grain configuration design

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.160353

Cuiping Xu, Xiaofan Sun, Peiqi Ji, Min Zhao, Tingfeng Li, Peng Chen, Hong-Ling Cai, X.S. Wu

{"title":"Enhancement of electrocaloric strength by grain configuration design","authors":"Cuiping Xu, Xiaofan Sun, Peiqi Ji, Min Zhao, Tingfeng Li, Peng Chen, Hong-Ling Cai, X.S. Wu","doi":"10.1016/j.cej.2025.160353","DOIUrl":"https://doi.org/10.1016/j.cej.2025.160353","url":null,"abstract":"Electrocaloric refrigeration technology presents a promising approach for cooling systems by cyclic processes of applying and removing an electric field to ferroelectric materials. However, dielectric breakdown remains a significant challenge in achieving a substantial temperature change. Chemical modification strategies aimed at enhancing breakdown strength by reducing grain size, but it also suppresses ferroelectric polarization, detrimental to electrocaloric performance. In this study, we addressed this issue by successfully achieving high breakdown strength and significant polarization in 0.3Pb(Mg1/2W1/2)O3-0.3Pb(Ni1/3Nb2/3)O3-0.4PbTiO3 (PMW-PNN-PT) material by filling large grain gaps with small grains through glass powder doping. Specifically, at an optimized proportion of 0.7 wt% of the glass powder, the maximum electric field in the electrocaloric effect measurements via the direct method increased from 20 kV/cm to 50 kV/cm, and the corresponding electrocaloric temperature change rose from 0.21 K to 0.6 K. This approach represents a novel method to simultaneously enhance breakdown strength and polarization, resulting in a remarkable improvement in the electrocaloric performance.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"15 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258175","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

Orally administered metal–organic framework nanocubes for sequence-targeted quercetin delivery in colitis alleviation

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.160373

Runan Zhao, Tao Chen, Shumeng Hu, Xuesong Chi, Songfeng Yu, Yanfei Li, Wenjun Wang, Beiwei Zhu, Donghong Liu, Jiangning Hu

{"title":"Orally administered metal–organic framework nanocubes for sequence-targeted quercetin delivery in colitis alleviation","authors":"Runan Zhao, Tao Chen, Shumeng Hu, Xuesong Chi, Songfeng Yu, Yanfei Li, Wenjun Wang, Beiwei Zhu, Donghong Liu, Jiangning Hu","doi":"10.1016/j.cej.2025.160373","DOIUrl":"https://doi.org/10.1016/j.cej.2025.160373","url":null,"abstract":"Inflammatory bowel disease (IBD) management is often hindered by limited efficacy and significant systemic side effects of traditional oral medications, owing to their lack of targeted delivery and multifunctional capabilities. This study introduces a novel orally sequence-targeted delivery system, QT-CMOF@HAS nanocube, based on hydrophobic cross-linked CD-MOF (CMOF) for the precise delivery of quercetin (Qu) to the inflamed colonic lesions. To enhance the mitochondrial targeting capabilities of Qu, a mitochondrial-functionalized Qu-(5-carboxypentyl) (triphenyl) phosphonium bromide (TPP) precursor complex (QT) was initially synthesized and loaded into the CMOF. A chitosan/glutathione-responsive hyaluronic acid (HAS) shell was subsequently coated onto the CMOF, forming the QT-CMOF@HAS nanoplatform to further enhance the gastrointestinal tolerance. Our results demonstrated that QT-CMOF@HAS significantly alleviated colitis symptoms by modulating the repolarization of pro-inflammatory M1 macrophages to anti-inflammatory M2 phenotypes and deactivation of the TLR4/MyD88/NF-κB pathway, thus reducing the production of inflammatory cytokines. Furthermore, the integrity of the intestinal mucosal barrier and the gut microbiota were enhanced. This study highlights the potential of QT-CMOF@HAS nanocube as a promising therapeutic tool for IBD treatment, offering a multifaceted approach to tackle inflammation and support mucosal healing in a targeted and controlled manner.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"44 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258180","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

Chemical bubbling of 3D porous elastomers toward stretchable high-energy-density Zn-Ag2O microbattery

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.160275

Kang Jiang, Jinling Hu, Zeyan Zhou, Chunyi Zhi, Qunhong Weng

引用次数: 0

Cascade energy transfer endows phosphorescent carbon dots-based films with tunable and broadband afterglow for fingerprint recognition and anticounterfeiting 级联能量转移赋予基于碳点的磷光薄膜可调的宽带余辉，用于指纹识别和防伪

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-02-06 DOI: 10.1016/j.cej.2025.160311

Zhanpeng Liu, Xiangbo Ding, Lin Cai, Yihan Jia, Xia Ran, Zhongzheng Guo, Dan Mo, Yatao Pan, Lijun Guo

{"title":"Cascade energy transfer endows phosphorescent carbon dots-based films with tunable and broadband afterglow for fingerprint recognition and anticounterfeiting","authors":"Zhanpeng Liu, Xiangbo Ding, Lin Cai, Yihan Jia, Xia Ran, Zhongzheng Guo, Dan Mo, Yatao Pan, Lijun Guo","doi":"10.1016/j.cej.2025.160311","DOIUrl":"https://doi.org/10.1016/j.cej.2025.160311","url":null,"abstract":"Room-temperature phosphorescence (RTP) carbon dots (CDs) have attracted extensive attention due to their afterglow properties and promising potential in optical information and encryption fields. However, achieving tunable and broadband RTP CDs-based afterglow materials remains a great challenge for practical applications. Herein, we constructed broadly tunable afterglow CDs-based hybrid systems by employing cascade Förster resonance energy transfer (FRET) for fingerprint recognition and anticounterfeiting. The as-prepared CDs composites exhibit excellent green RTP properties with a quantum yield of 21.7 % and a lifetime of 1.05 s. Combination of the RTP CDs as the energy donor and Sulforhodamine 101 (SR101), Rhodamine B or Rhodamine 6G as the acceptor in polyvinyl alcohol (PVA) film, the afterglow spectrum of RTP CDs/dye/PVA film is markedly extended to the red region through an efficient triplet-singlet FRET. The sequential incorporation of SR101 and Oxazine 170 with RTP CDs further broadens the afterglow spectrum of CDs/SR101/Oxazine170/PVA film covering from green to near-infrared regions due to the cascade relayed FRET. The flexible FRET configuration of highly emissive RTP CDs with various dye acceptors endows the CDs/dyes/PVA hybrid films with tunable color and broadband afterglow properties for fingerprint recognition and anticounterfeiting applications.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"8 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191896","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