Chemical Engineering Journal最新文献

{"title":"Boosting polysulfide redox conversion via MoP/WP heterojunction engineering","authors":"Mingze Hao, Peng Li, Zhenwen Li, Zhenkun Sun, Lunbo Duan, Dong Wang, Qin Yue","doi":"10.1016/j.cej.2026.183086","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183086","url":null,"abstract":"Multifunctional catalysts with high electrical conductivity and strong catalytic activity offer an effective strategy to address polysulfide shuttling and sluggish sulfur redox kinetics in lithium–sulfur batteries. Herein, we construct a MoP/WP heterojunction on porous carbon nanosheets (MoP/WP@PCNS) as a separator modifier. The work-function difference and interfacial lattice mismatch create a polarized heterointerface, which modifies the valence states of metal centers and regulates Li<ce:sup loc=\"post\">+</ce:sup> transport. Experimental and theoretical analyses confirm that the heterointerface modifies the valence states of metal atoms, thereby accelerating polysulfide conversion and mitigating shuttling. Consequently, Li<ce:glyph name=\"sbnd\"></ce:glyph>S cells equipped with MoP/WP@PCNS-modified separators exhibit a high sulfur utilization of 1514 mAh g<ce:sup loc=\"post\">−1</ce:sup> at 0.2C and a low decay rate of only 0.068% per cycle over 500 cycles at 1C. Under demanding conditions (sulfur loading: 8.4 mg cm<ce:sup loc=\"post\">−2</ce:sup>; electrolyte/sulfur ratio: 3 μL mg<ce:sup loc=\"post\">−1</ce:sup>), the cells still deliver an areal capacity of 8.4 mAh cm<ce:sup loc=\"post\">−2</ce:sup> at 0.1C. This work demonstrates a viable route to boost sulfur reaction kinetics via synergistic lattice strain and electric field modulation in heterostructured composites.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"12 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221465","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}

{"title":"Synergistic polarization field enhancement and orbital engineering in Ti-doped KNbO3 for simulated solar irradiation upcycling of PBAT plastics","authors":"Yuying Ma, Zongyuan Li, Guixue Liang, Haijiao Xie, Fei Liu, Hai Fan, Jing Xu","doi":"10.1016/j.cej.2026.183100","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183100","url":null,"abstract":"Photocatalytic plastic upcycling offers a sustainable route to combat plastic pollution, yet its efficiency is severely bottlenecked by rapid charge recombination. Herein, B-site Ti-doped KNbO<ce:inf loc=\"post\">3</ce:inf> ferroelectric perovskites were engineered for the selective conversion of PBAT into high-value terephthalic acid (PTA) monomers. Comprehensive characterizations and density functional theory (DFT) calculations reveal that the disparities in ionic radius and electronic configuration between Ti<ce:sup loc=\"post\">4+</ce:sup> and Nb<ce:sup loc=\"post\">5+</ce:sup> induce a dual-functional modification of KNbO<ce:inf loc=\"post\">3</ce:inf>. Structurally, Ti incorporation intensifies the local lattice asymmetry of KNbO<ce:inf loc=\"post\">3</ce:inf> and amplifies the off-center spatial displacement of charge centers, thereby reinforcing the intrinsic bulk polarization field to accelerate the separation of photogenerated charges. Electronically, the hybridization of Ti 3d orbitals elevates the conduction band bottom, boosting the reduction power of photogenerated electrons to drive rapid ·O<ce:inf loc=\"post\">2</ce:inf><ce:sup loc=\"post\">−</ce:sup> generation for selective PBAT ester bond scission. Benefiting from this structural and electronic synergism, Ti-KNbO<ce:inf loc=\"post\">3</ce:inf> achieves a 2.1-fold increase in the PTA production rate compared to pristine KNbO<ce:inf loc=\"post\">3</ce:inf>. Furthermore, Ti-KNbO<ce:inf loc=\"post\">3</ce:inf> demonstrates robust performance in converting post-consumer real-world PBAT products. This work provides an effective polarization and band-engineering regulation strategy for ferroelectric photocatalysts and advances the valorization of biodegradable plastic waste.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"163 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221470","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}

{"title":"Multifunctional emulsion-electrospun PCL-PVA/SA@nano CB:Que nanofiber membrane for infected wound healing","authors":"Shuyue Long, Ying Huang, Zhihao Lin, Sujuan Yan, Xiaoyi Luo, Xia Ren, Xianjun Fu, Zhengao Wang, Wuyi Zhou","doi":"10.1016/j.cej.2026.182905","DOIUrl":"https://doi.org/10.1016/j.cej.2026.182905","url":null,"abstract":"Persistent bleeding, bacterial colonization, oxidative stress, and prolonged inflammation are major barriers to the repair of infected wounds. An ideal dressing should rapidly control bleeding and bacterial contamination, while regulating oxidative and inflammatory microenvironments to support tissue regeneration. Herein, a multifunctional PCL-PVA/SA@nano CB composite nanofiber membrane was developed by emulsion electrospinning for infected-wound therapy. In this system, polycaprolactone (PCL) provided structural stability, while the hydrophilic polyvinyl alcohol/sodium alginate (PVA/SA) phase improves wettability, water absorption, breathability, and bioactive-agent delivery. Nano Cuttlebone acted as a calcium-rich component for rapid hemostasis and antibacterial activity, whereas quercetin contributes antioxidant and anti-inflammatory functions. <ce:italic>In vitro</ce:italic>, the optimized membrane achieved antibacterial efficiencies of 96.72% against <ce:italic>S. aureus</ce:italic> and 96.58% against <ce:italic>E. coli</ce:italic>, inhibited <ce:italic>S. aureus</ce:italic> biofilm formation, scavenged DPPH radicals, and promoted L929 fibroblast proliferation and migration. <ce:italic>In vivo</ce:italic>, the membrane accelerated hemostasis in a mouse liver bleeding model and promoted <ce:italic>S. aureus</ce:italic>-infected full-thickness wound healing, reaching 98.9% closure on day 14. The nanofiber membrane also reduced bacterial burden, regulated macrophage polarization, suppressed CD86/TNF-α, enhanced CD206/IL-10, and promoted collagen deposition and re-epithelialization. This study provides a promising multifunctional electrospun dressing for complex infected wounds.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"163 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221506","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}

{"title":"Quantifying thermodynamic and kinetic contributions to CO2 permeability enhancement in mixed matrix membranes for gas separation","authors":"Qingbin Che, Jianian Chen, Tianci Tang, QiQi Zhu, Xueqin Li","doi":"10.1016/j.cej.2026.183050","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183050","url":null,"abstract":"Although porous fillers have been widely employed to enhance CO<ce:inf loc=\"post\">2</ce:inf> separation in mixed matrix membranes (MMMs), quantitative understanding of how thermodynamic adsorption and kinetic diffusion contribute to filler-induced CO<ce:inf loc=\"post\">2</ce:inf> permeability enhancement remains lacking. Herein, a quantitative thermodynamic–kinetic contribution analysis methodology was developed based on the solution–diffusion model to quantify the respective thermodynamic contribution (C<ce:inf loc=\"post\">T</ce:inf>) and kinetic contribution (C<ce:inf loc=\"post\">K</ce:inf>) to filler-induced CO<ce:inf loc=\"post\">2</ce:inf> permeability enhancement. The methodology enables direct quantitative evaluation and comparison of the respective C<ce:inf loc=\"post\">T</ce:inf> and C<ce:inf loc=\"post\">K</ce:inf> of porous fillers with different adsorption–diffusion characteristics to CO<ce:inf loc=\"post\">2</ce:inf> permeability enhancement. To demonstrate its applicability, three representative porous fillers with distinct adsorption–diffusion characteristics (sulfonated TB-COF, ZIF-8, and ZIF-8@TB) were incorporated into Pebax to fabricate MMMs for CO<ce:inf loc=\"post\">2</ce:inf> separation. Quantitative contribution analysis revealed that the adsorption–diffusion characteristics of porous fillers correlate with distinct thermodynamic–kinetic contribution profile in MMMs, thereby accounting for differences in CO<ce:inf loc=\"post\">2</ce:inf> permeability enhancement. Specifically, C<ce:inf loc=\"post\">T</ce:inf> and C<ce:inf loc=\"post\">K</ce:inf> quantify the relative solubility-related and diffusivity-related contributions, respectively, to the filler-induced CO<ce:inf loc=\"post\">2</ce:inf> permeability enhancement at the membrane scale. Their coordination simultaneously promotes efficient CO<ce:inf loc=\"post\">2</ce:inf> transport while maintaining CO<ce:inf loc=\"post\">2</ce:inf> selectivity. Consequently, the optimized Pebax/ZIF-8@TB-3 MMM exhibited a coordinated thermodynamic–kinetic contribution profile (C<ce:inf loc=\"post\">T</ce:inf> = 53%, C<ce:inf loc=\"post\">K</ce:inf> = 47%), achieving a CO<ce:inf loc=\"post\">2</ce:inf> permeability of 1112 Barrer and a CO<ce:inf loc=\"post\">2</ce:inf>/CH<ce:inf loc=\"post\">4</ce:inf> selectivity of 38.2 in a wet state. This work quantifies the respective thermodynamic and kinetic contributions to filler-induced CO<ce:inf loc=\"post\">2</ce:inf> permeability enhancement, thereby accounting for differences in CO<ce:inf loc=\"post\">2</ce:inf> permeability enhancement in MMMs, and provides a new methodology for evaluating and designing high-performance CO<ce:inf loc=\"post\">2</ce:inf> separation membranes.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"34 1","pages":"183050"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221508","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}

{"title":"A centralised CO2 capture strategy for small, spatially dispersed industrial emission sources","authors":"Francesco Zanobetti, Mariafrancesca Polito, Alessandro Dal Pozzo, Matteo Iaiani, Valerio Cozzani","doi":"10.1016/j.cej.2026.183104","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183104","url":null,"abstract":"Achieving net-zero in the industrial sector requires addressing CO<ce:inf loc=\"post\">2</ce:inf> emissions from smaller and geographically dispersed sources, such as those emitting less than 10 kt<ce:inf loc=\"post\">CO2</ce:inf>/yr. While carbon capture and storage (CCS) is a possible mitigation pathway, its viability depends on economies of scale and access to shared infrastructure, limiting its deployment for such emitters. This study investigates a strategy to extend CO<ce:inf loc=\"post\">2</ce:inf> capture to smaller, dispersed industrial emitters, in which on-site absorption is coupled with centralised solvent regeneration via truck-based transport of CO<ce:inf loc=\"post\">2</ce:inf>-rich and CO<ce:inf loc=\"post\">2</ce:inf>-lean solvent. The centralised solvent regeneration (CSR) concept is benchmarked against distributed capture configurations, in which each emitter operates a standalone capture system, and against a direct air capture (DAC)–based removal pathway, using specific net CO<ce:inf loc=\"post\">2</ce:inf> abatement and cost metrics. Two case studies addressing sparsely distributed emitters are analysed. The results show that CSR reduces investment requirements by more than 50% relative to decentralised solvent-based capture at all the emission scales investigated. Within a specific operating window depending on both the emission scale and the transport distance, CSR achieves CO<ce:inf loc=\"post\">2</ce:inf> abatement costs, excluding downstream transport and storage, up to a factor of two lower than distributed capture and up to a factor of three lower than current estimates of DAC-based removal costs. CSR remains cost-competitive across different flue-gas compositions representative of heterogeneous industrial emission sources. Decarbonising solvent transport further increases the net CO<ce:inf loc=\"post\">2</ce:inf> avoidance of CSR by approximately 21% and reduces its abatement costs by up to 35%. Overall, CSR emerges as a potentially scalable network configuration for direct CO<ce:inf loc=\"post\">2</ce:inf> capture at smaller, dispersed industrial emitters, complementing carbon dioxide removal pathways.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"56 1","pages":"183104"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221540","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}

{"title":"Bio-OPMATCH: A multifunctional biomimetic shape-memory scaffold for repairing osteoporotic bone defects by promoting osteogenesis and inhibiting osteoclastogenesis","authors":"Xin Dai, Yixuan Lan, Shuhao Yang, Jiahui Wang, Hualin Peng, Zhaokun Li, Wang Gong, Dengkai Chen, Wanyue Feng, Yao Zhang, Zhen Fan, Xulin Hu","doi":"10.1016/j.cej.2026.183097","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183097","url":null,"abstract":"Osteoporotic bone defects, stemming from an imbalance between osteogenesis and osteoclastogenesis, are characterized by reduced bone strength, heightened brittleness, and often irregular morphology, which contribute to delayed repair and pose challenges for mechanical reconstruction. There is an urgent need for scaffolds that integrate mechanical adaptability, precise filling capability, and the capacity to regulate bone regeneration. This study introduces Bio-OPMATCH, a composite scaffold designed to integrate mechanical, structural, and functional matching for osteoporotic bone defect repair, with adaptability to irregular defect morphology. The scaffold is based on the shape-memory polymer poly(L-lactic acid-<ce:italic>co</ce:italic>-trimethylene carbonate-co-glycolic acid) (PTG), compounded with dopamine-modified hydroxyapatite (PHA) and integrated with a Cu-Zol metal-organic framework (CZ) formed by coordination of copper ions (Cu) with zoledronic acid (Zol). Bio-OPMATCH exhibits favorable shape-recovery properties and a controllable degradation behavior. It can be compressed for minimally invasive implantation and undergoes <ce:italic>in situ</ce:italic> shape restoration at physiological temperature, while its adaptive filling of irregular bone defects was demonstrated in an <ce:italic>ex vivo</ce:italic> model. Moreover, the scaffold demonstrates excellent cytocompatibility, promoting the osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) while inhibiting osteoclast differentiation. Evaluations in a rat osteoporosis model revealed that Bio-OPMATCH promotes bone regeneration and suppresses the osteoclast differentiation signaling axis centered on Csf1/Csf1r. By leveraging mechanical adaptability and shape-memory-enabled minimally invasive filling to achieve structural matching, and by utilizing the sustained local Zol release from CZ to promote structural repair and functional regeneration of osteoporotic bone defects, Bio-OPMATCH provides a potential strategy for osteoporotic bone defect repair, particularly where complex or irregular defect morphology presents additional challenges.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"285 1","pages":"183097"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221571","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}

{"title":"Biogenic sulfidation of ferrihydrite regulates soil organic matter mineralization and molecular transformations under dynamic redox conditions","authors":"Jun Wu, Meitong Dong, Yiqiu Huang","doi":"10.1016/j.cej.2026.183095","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183095","url":null,"abstract":"Both microbial sulfate reduction (MSR) and iron (hydr)oxides play critical roles in the turnover of soil organic matter (SOM). However, the influence of MSR-driven sulfidation of iron (hydr)oxides on SOM mineralization and molecular transformations under fluctuating redox conditions remains poorly constrained. This study investigated Fe–S–C transformation processes associated with biogenic ferrihydrite sulfidation and SOM mineralization using controlled anoxic-oxic soil incubation coupled with multi-species chemical analyses and functional gene profiling. During anoxic phases, MSR promoted ferrihydrite sulfidation, leading to increased Fe(II) generation and cumulative CO<ce:inf loc=\"post\">2</ce:inf> emission. Upon O<ce:inf loc=\"post\">2</ce:inf> exposure, the excess oxic-phase CO<ce:inf loc=\"post\">2</ce:inf> emission in CFS relative to CK accounted for 45 ± 8.2%, while substantial •OH production (183 μmol kg<ce:sup loc=\"post\">−1</ce:sup>) was observed concurrently with Fe(II) oxidation. Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) indicated a distinct molecular shift in SOM composition. Microbial community and metagenomic analyses revealed increased relative representation of <ce:italic>Desulfobacterota</ce:italic> and enrichment of dissimilatory sulfate reduction genes (<ce:italic>dsrA/B/P</ce:italic>), which were strongly correlated with Fe(II) formation and TOC degradation. Partial least squares path modeling suggested that sulfur species were closely associated with the relationships among microbial activity, Fe redox transformation, and SOM turnover. These findings provide a mechanistic framework for sulfur-mediated Fe–S–C coupling in soils, emphasizing the potential of flooding-duration and re‑oxygenation management to constrain Fe(II) accumulation and subsequent ROS-mediated carbon loss in sulfate-rich environments.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"56 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221462","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}

{"title":"In-situ recovery of elemental sulfur (S0) and maintenance of functional microbial activity via polysulfide conversion in DSSADN sludge","authors":"Xin Duan, Linfang Xian, Pengze Dang, Xiang Li, Yan Yuan, Yayi Wang, Han Wang, Jun Ma, Yong Huang","doi":"10.1016/j.cej.2026.182862","DOIUrl":"https://doi.org/10.1016/j.cej.2026.182862","url":null,"abstract":"Double short-cut sulfur autotrophic denitrification (DSSADN) with elemental sulfur (S<ce:sup loc=\"post\">0</ce:sup>) and NO<ce:inf loc=\"post\">2</ce:inf><ce:sup loc=\"post\">−</ce:sup>-N accumulation not only enhances anaerobic ammonium oxidation (Anammox) for nitrogen removal but also reduces SO<ce:inf loc=\"post\">4</ce:inf><ce:sup loc=\"post\">2−</ce:sup> pollution in sulfide-driven denitrification. However, the accumulation of microbially produced S<ce:sup loc=\"post\">0</ce:sup> in sludge leads to biomineralization and reduces system stability. This study investigated the key operational parameters and underlying mechanisms for sludge S<ce:sup loc=\"post\">0</ce:sup> extraction based on polysulfide transformation characteristics, aiming to prevent sludge mineralization and achieve stable DSSADN performance. The results showed that S<ce:sup loc=\"post\">0</ce:sup> accumulation reached 48% within the DSSADN reactor, decreasing denitrification performance by 47%. Efficient S<ce:sup loc=\"post\">0</ce:sup> extraction and maintained biological activity were accomplished under the conditions of pH 10–11, 2 h extraction duration, 300 mg/L S<ce:sup loc=\"post\">2−</ce:sup> concentration, and 2–3 g/L mixed liquor suspended solids concentration. After online extraction with S<ce:sup loc=\"post\">2−</ce:sup>, the S<ce:sup loc=\"post\">0</ce:sup> accumulation ratio in the DSSADN reactor sludge decreased to below 7%. Nitrate and sulfide conversion rates remained stable at 1.3 and 2.8 kg/(m<ce:sup loc=\"post\">3</ce:sup>·d), respectively. The extraction process reduced the S<ce:sup loc=\"post\">0</ce:sup> levels both inside and outside the cells, ensuring the dominance of <ce:italic>Thiobacillus</ce:italic>. The abundance of core functional genes, including sulfur oxidation genes (<ce:italic>sqr, fccB</ce:italic>) and nitrate reduction genes (<ce:italic>narG/narZ</ce:italic>), was suppressed by S<ce:sup loc=\"post\">0</ce:sup> accumulation, but high relative abundance again after S<ce:sup loc=\"post\">0</ce:sup> extraction, while the nitrite over-reducing gene (<ce:italic>nirK</ce:italic>) maintained low abundance. This study provides a novel sulfur recovery strategy for the stable operation of coupled DSSADN and PN/Anammox processes, which is conducive to promoting the engineering application of sulfur autotrophic denitrification technology and sulfur resource recovery.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"13 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221507","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}

{"title":"Enzymatic and whole-cell bioconversion of steel mill off-gas into formate: From lab-scale to onsite pilot-scale demonstration","authors":"Seung-Jin Kim, YeonJin Cho, Jiho Yang, Suk Min Kim, Hyun Kim, SoonHyung Kang, Tae-Hwan Kim, Jun-Min Lee, Ji-in Yang, Youngseok Lee, Dohyung Kim, Myoung-Gyun Shin, Min-Kyu Oh, Byung-Keun Oh, Jeong-Geol Na, Seokmin Yoon, Yong Hwan Kim, Paul Kwangho Kwon","doi":"10.1016/j.cej.2026.183106","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183106","url":null,"abstract":"POSCO has developed an innovative steel-making process known as FINEX. This process produces a byproduct gas called FINEX Off Gas (FOG), presenting a prime opportunity for carbon valorization. This study investigates the bioconversion of FOG to formate by deploying carbon monoxide dehydrogenase (<ce:italic>Ch</ce:italic>CODH2) and formate dehydrogenase (<ce:italic>Me</ce:italic>FDH1) in two distinct catalytic forms: immobilized enzymes and whole-cell biocatalysts. The process was scaled from lab-scale studies to an on-site 15-L pilot demonstration using real industrial gas streams. While the immobilized enzyme system exhibited rapid initial kinetics, its productivity was observed to decline at intermediate formate concentrations, and was constrained by the additional enzyme purification and carrier preparation steps. In contrast, the whole-cell system, despite a slower onset, maintained formate productivity over time without the need for additional processing. The successful operation of this pilot within a fully operational steel mill demonstrates the operability of this <ce:italic>Ch</ce:italic>CODH2–<ce:italic>Me</ce:italic>FDH1 enzymatic pathway, providing the design basis for subsequent scale-up phases toward industrial demonstration.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"88 1","pages":"183106"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221542","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}

{"title":"Targeting ferroptosis in periodontitis and peri-implantitis: From pathological mechanisms to smart biomaterial interventions for bone regeneration","authors":"Yimeng Xie, Xiao Wei, Yuedi Yu, Keshi Zhu, Yiling Yang, Jian Sun, Wei Bi, Fei Yang, Zhihui Han, Qianrong Zhou, Xingwen Wu, Ruixue Li, Youcheng Yu, Yang Sun","doi":"10.1016/j.cej.2026.183091","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183091","url":null,"abstract":"In the pathological microenvironments of periodontitis (PD) and peri-implantitis (PI), achieving precise repair and functional reconstruction of alveolar bone defects remains a major clinical challenge. Ferroptosis, a form of programmed cell death characterized by intracellular free iron overload and lipid peroxidation, has been identified as a key pathogenic factor that disrupts local bone homeostasis and inhibits osteogenic regeneration. However, the exact pathological mechanisms underlying ferroptosis in the pathogenesis and progression of PD/PI remain to be fully elucidated. In recent years, the targeted intervention of ferroptosis using smart biomaterials has emerged as a cutting-edge strategy for achieving tissue-specific repair. This review provides a comprehensive dissection of the pathological cascades and mechanistic crosstalk underlying ferroptosis-driven dysregulation of bone remodeling in PD/PI. Furthermore, it highlights recent advances in the application of advanced ferroptosis-targeting biomaterials, including microenvironment-responsive smart hydrogels, nanoscale delivery systems, and microneedle arrays. The review also critically outlines the existing limitations and challenges of ferroptosis-modulating biomaterials in PI. Crucially, it underscores spatiotemporally controlled strategies engineered into smart biomaterials to synchronize ferroptosis regulation with bone regeneration. Building upon these insights, this review aims to offer forward-looking perspectives for the development of precision clinical therapeutic paradigms endowed with the dual capacity to restore immune homeostasis and promote bone tissue regeneration.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"12 1","pages":"183091"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221589","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}