Chemical Engineering Journal最新文献_第3页

Biodegradable ionic nanoregulators for synchronous modulation of copper and iron ion homeostasis in breast cancer therapy

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162041

Panpan Xue, Huilan Zhuang, Sijie Shao, Hai Cai, Shumin Tang, Ying Sun, Xuemei Zeng, Shuangqian Yan

{"title":"Biodegradable ionic nanoregulators for synchronous modulation of copper and iron ion homeostasis in breast cancer therapy","authors":"Panpan Xue, Huilan Zhuang, Sijie Shao, Hai Cai, Shumin Tang, Ying Sun, Xuemei Zeng, Shuangqian Yan","doi":"10.1016/j.cej.2025.162041","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162041","url":null,"abstract":"Abnormal copper and iron ion metabolism promotes tumor proliferation but also presents a potential target for cancer therapy. However, simultaneously modulating these two ions is challenging, and the downstream therapeutic mechanisms remain unexplored. Here, we introduce FessTMiR, a biodegradable ionic nanoregulator designed to modulate copper and iron ion homeostasis for tumor treatment. FessTMiR comprises ferrous ions and disulfanediyldiacetic acid-assembled nanovectors (FessNV) combined with tetrathiomolybdate (TM), an anti-copper agent. Under the acidic and high-glutathione conditions of the tumor microenvironment, FessTMiR decomposes into ferrous ions and TM, leading to elevated iron and reduced copper levels. Transcriptome analysis reveals that this dual ion modulation induces cancer cell death via ferroptosis, apoptosis, and autophagy by affecting multiple pathways, including metal ion metabolism, glutathione metabolism, and oxidative stress. Additionally, FessTMiR inhibits angiogenesis and reduces the expression of programmed cell death ligand 1 (PD-L1). Notably, FessTMiR elicits robust antitumor immune responses in breast tumor mouse models, including dendritic cell maturation, Treg cell reduction, and enhanced T cell tumor infiltration. This study underscores the potential of modulating iron and copper homeostasis in tumor therapy, enhancement of antitumor immune responses, and activation of ferroptosis.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"32 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758332","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

Pt nanoclusters entrapped within Cu-SSZ-13 zeolite for efficient propane dehydrogenation

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162066

Zhikang Xu, Mingbin Gao, Xing Wu, Haibo Zhu

{"title":"Pt nanoclusters entrapped within Cu-SSZ-13 zeolite for efficient propane dehydrogenation","authors":"Zhikang Xu, Mingbin Gao, Xing Wu, Haibo Zhu","doi":"10.1016/j.cej.2025.162066","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162066","url":null,"abstract":"Pt-Cu bimetallic particles have been regarded as promising catalysts for propane dehydrogenation. The dispersion of Pt and Cu species on conventional supports always results in the formation of large Pt-Cu particles, and it is highly desirable to fabricate ultra-small Pt-Cu cluster catalysts for propane dehydrogenation. Herein, we used the isolated Cu species in the Cu-SSZ-13 to localize the Pt species and the alloying of Pt with Cu leads to a formation of ultra-small (<1 nm) Pt-Cu bimetallic clusters in the structure of SSZ-13. The structure of synthesized PtCu-SSZ-13 catalysts was studied by XRD, SEM, STEM, XPS, CO-FTIR, H2-TPR and EXAFS techniques, which demonstrates that Pt-Cu clusters are entrapped in the micropore of SSZ-13 and their migration can be greatly inhibited. The synthesized PtCu-SSZ-13 catalyst shows high activity and good regeneration in propane dehydrogenation. The optimized catalyst 0.3 %PtCu-SSZ-13 delivers propane conversion of 28.5 % (close to equilibrium conversion) with 100 % propane as feed under WHSV of 7.1 h−1 at 520°C, and its catalytic performance can be completely regenerated via calcination in air. Density functional theory (DFT) calculations indicate that the unique Pt-Cu bimetallic nanocluster structure reduces the energy potential for propane dehydrogenation as well as promotes the adsorption of C3H8 and desorption of C3H6 thus enhancing the activity of the PtCu-SSZ-13 catalyst.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"16 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758439","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

Photocatalytic conversion of polystyrene under mild conditions using surface-modified BiOBr/g-C3N4 heterojunction with strong interfacial interactions

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162152

Chao Wang, Xuefeng Hu, Huixian Du, Meng Gao, Yuanxing Pu

{"title":"Photocatalytic conversion of polystyrene under mild conditions using surface-modified BiOBr/g-C3N4 heterojunction with strong interfacial interactions","authors":"Chao Wang, Xuefeng Hu, Huixian Du, Meng Gao, Yuanxing Pu","doi":"10.1016/j.cej.2025.162152","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162152","url":null,"abstract":"Polystyrene (PS) waste constitutes an increasingly urgent environmental issue. Existing chemical recovery methods generally suffer from harsh reaction conditions and difficult catalyst recovery. In this study, a BiOBr/g-C3N4 2D/2D heterojunction modified with potassium stearate (PST) was proposed for heterogeneous photocatalytic conversion of polystyrene under mild conditions, achieving a 32.63 % yield of benzoic acid. The introduction of PST induced the formation of strong interfacial interactions between g-C3N4 and BiOBr nanosheets, thereby enhancing the separation and transfer of photo generated carriers. Furthermore, the PST hydrophobic chains on the heterojunction surface effectively aggregate and adsorb PS molecules and their degradation intermediates, significantly enhancing the chemical recovery efficiency of polystyrene. Quenching experiments and electron paramagnetic resonance (EPR) analyses identified superoxide anion radicals and singlet oxygen as the primary oxidizing species in the conversion process, with alkyl and alkoxy radicals acting as intermediates in the photo degradation of polystyrene. Furthermore, this strategy was successfully applied to commercial plastics, achieving benzoic acid yields of 29–32 %. This work presents a promising strategy for the development of an environmentally friendly conversion system for polystyrene.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"23 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758255","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

Revealing the effect of sulfur doping in NiCo-layered double hydroxides for enhanced electrocatalytic water splitting and glucose sensing performance

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162216

Chenhuinan Wei, Yurun Hu, Zitong Yang, Jingqi Huang, Yang Zhang, Qijun Cheng, Donghao Jiao, Huihu Wang

{"title":"Revealing the effect of sulfur doping in NiCo-layered double hydroxides for enhanced electrocatalytic water splitting and glucose sensing performance","authors":"Chenhuinan Wei, Yurun Hu, Zitong Yang, Jingqi Huang, Yang Zhang, Qijun Cheng, Donghao Jiao, Huihu Wang","doi":"10.1016/j.cej.2025.162216","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162216","url":null,"abstract":"Enhancing performances of electrocatalytic water splitting and electrochemical glucose sensing by varying the electronic structure is of great significance for hydrogen production and health management. In this work, a difunctional electrocatalyst sulfur doped nickel cobalt layered double hydroxide (S-doped NiCo-LDH) were prepared to investigate how the S doping affects the electronic structure and thereby the corresponding performance. The experimental characterization and theoretical calculation manifest that S doping can increase the valance state ratio of Co2+/Co3+ and the upshift of d band centers, accompanied with the reduce energy barriers of *H and *OOH formation for the initial step in (HER) and the determining step in (OER), and larger adsorption energy for glucose. In consequence, S-doped NiCo-LDH delivered low overpotentials of 183 mV and 246 mV at 10 mA cm−2 for HER and OER along with excellent stability for glucose sensing. Furthermore, it also achieved an ultrahigh sensitivity of 2509.6 μA mM−1cm−2 in a linear range of 0.01–1.21 mM and displayed satisfactory selectivity, reproducibility and stability. This study presents an efficient approach to improving the performance of electrocatalysts for difunctional applications","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"67 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758257","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

Breaking interfacial Lithium-Ion conduction barriers by a Small-Molecule blocker of interfacial reactions for All-Solid-State Lithium-Sulfur batteries

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162077

Congying Song, Jian Gao, Han Shen, Zhongqiang Wang, Fang Li, Guoxing Li

{"title":"Breaking interfacial Lithium-Ion conduction barriers by a Small-Molecule blocker of interfacial reactions for All-Solid-State Lithium-Sulfur batteries","authors":"Congying Song, Jian Gao, Han Shen, Zhongqiang Wang, Fang Li, Guoxing Li","doi":"10.1016/j.cej.2025.162077","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162077","url":null,"abstract":"The decomposition of Li6PS5Cl at polyethylene oxide-Li6PS5Cl (PEO-Li6PS5Cl) interface is the intrinsic factor restricting the lithium-ion (Li+) transport in PEO-Li6PS5Cl-based composite solid polymer electrolyte (PL-CSE). Here, a small molecule-induced interface-reaction blocking strategy is proposed to suppress the decomposition of Li6PS5Cl and significantly improve the Li+ conductivity of PL-CSE. C-propylpyrogallol[4]arene (PgC3) with unique structure is designed to serve as a small-molecule blocker of interfacial reactions to active the interfacial Li+ transport. The abundant hydrogen bonds between PgC3 and PEO not only accelerate the Li+ transport in PEO phase but also weaken the nucleophilic attack of PEO to Li6PS5Cl, thus inhibiting the decomposition of Li6PS5Cl and breaking the Li+ transport barriers at the PEO-Li6PS5Cl interface. The unique electrostatic potential and bowl-shaped configuration of PgC3 also induce an attraction to the anions, which promotes the dissociation of Li salts. Benefiting from these features, the PL-CSE containing PgC3 (PPL-CSE) exhibits a high Li+ conductivity of 1.93 × 10-4 S cm−1 (35 ℃). The PPL-CSE-based Li‖Li symmetric cell shows an outstanding stability with a lifespan over 14000 h. The assembled all-solid-state lithium-sulfur battery also delivers a high specific capacity of 1012mAh g−1 and stable cycling performance at 0.1C.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"75 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758260","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

Boosting the hydrogen storage performance of Mg-rich quaternary alloy hydrides via in-situ evolution of bidirectional catalytic phases

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162071

Ruijie Liu, Xinhao Jiang, Xinqiang Wang, Zhenglong Li, Xiaoying Yang, Jingbo Chen, Yanxia Liu, Wengang Cui, Fan Gao, Yong Gao, Fulai Qi, Chao Zheng, Mingchang Zhang, Yaxiong Yang, Jian Miao, Lixian Sun, Jian Chen

{"title":"Boosting the hydrogen storage performance of Mg-rich quaternary alloy hydrides via in-situ evolution of bidirectional catalytic phases","authors":"Ruijie Liu, Xinhao Jiang, Xinqiang Wang, Zhenglong Li, Xiaoying Yang, Jingbo Chen, Yanxia Liu, Wengang Cui, Fan Gao, Yong Gao, Fulai Qi, Chao Zheng, Mingchang Zhang, Yaxiong Yang, Jian Miao, Lixian Sun, Jian Chen","doi":"10.1016/j.cej.2025.162071","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162071","url":null,"abstract":"Although Mg alloy-based hydrides have been considered as promising solid-state materials due to their high capacity and low cost, the high dehydrogenation temperature of ∼ 300℃ severely limited their practical application. Herein, a series of Mg-based quaternary alloys of Mg85Ni5Cu5M5 (M = Al, Zn, Co, La) hydrides were prepared by a combination of meltspinning and ball milling process, demonstrating an efficient approach to promoting the hydrogen storage properties. Among them, the Mg85Ni5Cu5La5 hydride (H-Mg85Ni5Cu5La5) as the most excellent one starts to release hydrogen from 175℃, 125℃ lower than that of MgH2. Especially, the peak hydrogen release temperature of H-Mg85Ni5Cu5La5 was remarkedly reduced from 347℃ to 253℃, compared with MgH2. Additionally, the H-Mg85Ni5Cu5La5 presented an impressive initial hydrogen capacity of 4.2 wt% with a high-capacity retention of 92.6 % over 10 dehydrogenation cycles. In/Ex-situ XRD analyses proved that the synergistic effects of in-situ formed metallic Ni and LaH2 catalytic phases during the milling and ab/desorption processes can simultaneously enhance the ab/desorption kinetics of Mg/MgH2. That is, the LaH2 can act as a hydrogen pump to promote the dehydrogenation of hydrides, while the Ni is beneficial to accelerate the dissociation of metal-hydrogen atoms and the formation of hydrogen molecules on the surface of Mg alloy. These findings highlight the potential of multicomponent Mg-based alloys for practical use in solid-state hydrogen storage systems through in-situ formed catalytic phases.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"16 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758327","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

Efficient removal of organic pollutants by Metal–organic framework derived Co-N@C hollow multi-shell Nanoreactors: Size-Exclusion and confinement effect

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162227

Zhen Qiu, Guanda Shen, Zefeng Ruan, Xin Zeng, Hailu Fu, Yongfu Li, Bing Yu

{"title":"Efficient removal of organic pollutants by Metal–organic framework derived Co-N@C hollow multi-shell Nanoreactors: Size-Exclusion and confinement effect","authors":"Zhen Qiu, Guanda Shen, Zefeng Ruan, Xin Zeng, Hailu Fu, Yongfu Li, Bing Yu","doi":"10.1016/j.cej.2025.162227","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162227","url":null,"abstract":"The removal of organic pollutants in complex aqueous environments is often hindered by the presence of natural organic matter (NOM), such as humic acid (HA), which can interfere with pollutant degradation processes. Peroxymonosulfate (PMS) activation has emerged as a promising strategy for pollutant degradation; however, its efficiency is typically compromised by NOM interference. To address this challenge, this study develops a metal–organic framework (MOF)-derived Co-N@C hollow multi-shell nanoreactor (HoMS) that effectively isolates NOMs while targeting organic pollutants. The Co-N@C HoMS, synthesized via a “hierarchical temperature control, one-step pyrolysis” strategy, demonstrated superior catalytic performance in selectively degrading carbamazepine (CBZ) in the presence of HA. Over 99% of CBZ was removed within 10 min, even with HA present. Mechanistic studies revealed that PMS activation by Co-N@C HoMS for CBZ degradation involves both radical oxidation and electron transfer pathways. The unique size-exclusion effect of the Co-N@C HoMS selectively allows small molecules (CBZ) to pass through while blocking larger ones (HA), enabling rapid and selective pollutant degradation in complex environments. This work provides a novel solution for the efficient and selective removal of multi-component pollutants in complex environmental systems.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"235 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758254","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

Hygroscopic and moisture-stable cellulose nanofiber aerogel for effective and repeatable moisture-enabled electricity generation

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162246

Luting Zhu, Xiang Li, Yintong Huang, Shun Ishioka, Takaaki Kasuga, Hirotaka Koga

{"title":"Hygroscopic and moisture-stable cellulose nanofiber aerogel for effective and repeatable moisture-enabled electricity generation","authors":"Luting Zhu, Xiang Li, Yintong Huang, Shun Ishioka, Takaaki Kasuga, Hirotaka Koga","doi":"10.1016/j.cej.2025.162246","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162246","url":null,"abstract":"Cellulose nanofiber (CNF) aerogels with anisotropic porous channels have shown promise for various applications because of their ultralow density, efficient moisture transport, and sustainability. Moisture-enabled electricity generation (MEG) using CNF aerogels is of particular interest in the field of energy harvesting using sustainable materials. However, hydrophilic CNF aerogels collapse their porous channel structures under high-humidity conditions by disrupting the interfiber hydrogen bonds, thus hindering their repeated use in MEG. Although the hydrophobic treatment of CNF aerogels can improve their structural stability against moisture, this treatment hinders their moisture absorption and affects the MEG performance. Herein, we propose the loading of Al(III) into a CNF aerogel to enhance its moisture absorption and stability simultaneously. The introduction of deliquescent AlCl3·6H2O crystals and Al3+ crosslinking into the aerogel enhances its moisture absorption and stability, respectively. The enhanced moisture absorption significantly increased the MEG performance of the aerogel under high-humidity conditions. In addition, the improved moisture stability allows the repeated use of the aerogel, even after exposure to moist airflow and subsequent drying. The Al(III)-loaded CNF aerogel with an active electrode system exhibited enhanced and repeatable MEG performances under exposure to moist airflow with maximum open-circuit voltage, short-circuit current density, and power density of 950 mV, 112.9 μA cm−2, and 106.1 μW cm−2, respectively. This study provides a method for producing effective and repeatable MEG and boosts the stability of CNF aerogels for various applications.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"32 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758261","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

Doping Ti as structural and electronic promoter in LaFeO3 for enhanced chemical looping dry reforming of methane

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162225

Zhe Song, Juncheng Hong, Qian Yang, Chuande Huang, Mingyu Shao, Zhen Wang, Wei Su, Guanjie Yang, Bo Jiang, Yanyan Zhu

{"title":"Doping Ti as structural and electronic promoter in LaFeO3 for enhanced chemical looping dry reforming of methane","authors":"Zhe Song, Juncheng Hong, Qian Yang, Chuande Huang, Mingyu Shao, Zhen Wang, Wei Su, Guanjie Yang, Bo Jiang, Yanyan Zhu","doi":"10.1016/j.cej.2025.162225","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162225","url":null,"abstract":"The process efficiency of methane-to-syngas conversion via chemical looping technology suffers from the trade-off between high activity for C-H bond cleavage and high syngas selectivity, which is highly dependent on the precise regulation of M−O pair chemical state. Herein, we found that minor Ti doping as structural and electronic promoter in LaFeO3 (LaFe0.85Ti0.15O3) perovskite can greatly promote the activation of methane, rendering enhanced syngas yield 2.3-fold higher than LaFeO3 while maintaining 99 % CO selectivity for chemical looping dry reforming of methane (CLDRM). Experimental studies and DFT calculation analysis revealed that substitution of Fe3+ by Ti4+ with smaller radius could reduce the Fe-O bond length and increase the Fe-O-Ti bond angle, which induced the enhanced Fe3d-O2p bond hybridization, leading slightly elevated Fe valence state. Besides, the formation of Fe-O-Ti motif could enrich the electron density over O-atom due to the higher capability of Ti in donating electrons than Fe. Such electronic effect of Fe-O in Fe-O-Ti motif greatly reduced the activation energy barrier for heterolytic cleavage of C-H bond in CH4 from 1.88 eV (LaFeO3) to 1.32 eV (Fe-O-Ti in Ti doped LaFeO3), which could be instructive for designing advanced redox catalysts via precisely tuning the chemical state of M−O pair.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"38 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758328","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

Silver-loaded porous crystalline frameworks materials: A synergistic strategy for advanced antibacterial applications

IF 15.1 1区工程技术

Chemical Engineering Journal Pub Date : 2025-04-01 DOI: 10.1016/j.cej.2025.162049

Hui Li, Luyang Zhao, Hengyi Xu

{"title":"Silver-loaded porous crystalline frameworks materials: A synergistic strategy for advanced antibacterial applications","authors":"Hui Li, Luyang Zhao, Hengyi Xu","doi":"10.1016/j.cej.2025.162049","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162049","url":null,"abstract":"Bacterial infections pose a significant global public health challenge, highlighting the urgent need for efficient, targeted antibacterial agents, especially against drug-resistant bacteria. Silver nanoparticles (AgNPs) have recently gained significant attention for their strong antibacterial properties. However, their use as standalone antimicrobial agents is constrained by challenges such as AgNPs aggregation, which diminishes activity, and the uncontrolled release of Ag+, which poses toxicity risks. Porous crystalline framework materials (PCFMs) offer an effective solution to these challenges due to their high porosity, large specific surface area, and facile functionalization. Serving as ideal carriers, they enable controlled antimicrobial release, thereby prolonging antibacterial activity. Furthermore, leveraging the intrinsic antibacterial properties of metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) can generate synergistic effects, further improving antimicrobial efficacy. This review examines recent advancements in silver-loaded porous crystalline framework materials (Ag-PCFMs), with an emphasis on Ag-zeolites (Ag-Zs), silver-loaded metal–organic frameworks (Ag-MOFs), and silver-loaded covalent organic frameworks (Ag-COFs), which exhibit synergistic antibacterial properties. First, conventional and emerging synthesis methods are reviewed, followed by an in-depth analysis of how PCFM structural characteristics synergistically enhance the antibacterial activity of AgNPs in composite systems. Finally, the applications of Ag-PCFMs in food preservation, medicine, and environmental purification are assessed, highlighting their potential and outlining future research directions.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"89 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143758440","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