Chemical Engineering Journal最新文献

{"title":"A wear-resistant and spatially compartmentalized “valley–ridge” titanium surface for combined infection control and angiogenesis-supported bone regeneration","authors":"Wenjia Hu, Jinlei Zhu, Xuekai Qi, Bairui Zeng, Yifan Li, Anni Wu, Yanjin Zhang, Yuanjie Shao, Junjie Xue, Xinkun Shen, Jinsong Liu, Zhennan Deng, Cuie Wen","doi":"10.1016/j.cej.2026.183026","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183026","url":null,"abstract":"Implant-associated infection and inadequate osseointegration remain major obstacles to successful implantation. To overcome these challenges, we developed a multifunctional titanium surface featuring a mechanically robust micro-“valley–ridge” architecture, incorporating LL37-loaded nanotubes in the valleys for early postoperative antibacterial activity (within 72 h) with a Ta<ce:glyph name=\"sbnd\"></ce:glyph>Cu coating on the ridges that provides intermediate-to-late phase (beyond 72 h, up to 28 days) angiogenic and osteogenic stimulation. The surface architecture was fabricated by coating the titanium substrate with a Ta<ce:glyph name=\"sbnd\"></ce:glyph>Cu layer via magnetron sputtering, followed by laser lithography micropatterning and anodization to selectively produce TaCu nanotubes, after which a polydopamine coating was applied and the LL37 peptide was introduced to infill the nanotubes. The architectural system showed early postoperative LL37 release(~90% within 72 h) alongside sustintermediate-to-late phaseained Cu<ce:sup loc=\"post\">2+</ce:sup> release over 28 days. It exhibited combined antibacterial activity (&gt;89% reduction against <ce:italic>Staphylococcus aureus</ce:italic> and <ce:italic>Escherichia coli</ce:italic>), enhanced expression of angiogenic markers, and promotion of osteogenesis in vitro. In vivo evaluation in a rabbit bone-defect and infection model demonstrated potent antibacterial activity, decreased inflammation, and enhanced bone regeneration compared with control implants. By integrating rapid antibacterial protection with sustained angiogenic and osteogenic support, this spatially compartmentalized architectural surface effectively controls infection while promoting angiogenesis-supported bone regeneration, underscoring its potential as a versatile strategy to enhance titanium implant success in infection-prone or delayed-healing conditions.","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":"149221504","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":"Full-spectrum light-assisted thermocatalytic CO2 hydrogenation to formic acid over a highly hydrophobic MOF-based triphase catalyst","authors":"Mengyang Gao, Guoxiang Yang, Bo Shen, Yang Ding, Lingjun He, Derek Hao, Teng Li, Shenghu Zhang, Hiromi Yamashita, Qi Wang","doi":"10.1016/j.cej.2026.183032","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183032","url":null,"abstract":"The practical application of CO<ce:inf loc=\"post\">2</ce:inf> hydrogenation is often hindered by the conflicting phase requirements for CO<ce:inf loc=\"post\">2</ce:inf> reduction (gas-solid) and water oxidation (liquid-solid) in conventional two-phase systems. To address these limitations, a gas-solid-liquid triphase microenvironment was constructed using PdAg@NH<ce:inf loc=\"post\">2</ce:inf>-UiO-66-SHP, in which PdAg nanoparticles were integrated with NH<ce:inf loc=\"post\">2</ce:inf>-UiO-66 followed by hydrophobic modification with phenylsilane. Under full-spectrum light irradiation at 60 °C and 1 MPa (CO<ce:inf loc=\"post\">2</ce:inf>:H<ce:inf loc=\"post\">2</ce:inf> = 1:1), in the presence of 1 mL TEOA in 30 mL H<ce:inf loc=\"post\">2</ce:inf>O the optimized catalyst achieved a HCOOH production rate of 2258 μmol g<ce:sup loc=\"post\">−1</ce:sup> h<ce:sup loc=\"post\">−1</ce:sup> with &gt;99% selectivity, approximately twice that obtained under dark conditions. The enhanced performance is attributed to the cooperative effects of the hydrophobic interface, PdAg nanoparticles, and light excitation. The hydrophobic microenvironment facilitates the accessibility of gaseous CO<ce:inf loc=\"post\">2</ce:inf> and H<ce:inf loc=\"post\">2</ce:inf> to the catalyst surface, while PdAg nanoparticles promote H<ce:inf loc=\"post\">2</ce:inf> activation and light-induced charge-transfer processes. In-situ DRIFTS, photoelectrochemical measurements, and DFT calculations further reveal the formation and evolution of key HCOO* intermediates and provide mechanistic insight into the light-assisted reaction pathway. These results demonstrate the effective integration of interfacial gas transport, bimetallic H<ce:inf loc=\"post\">2</ce:inf> activation, and light-assisted thermal catalysis for selective CO<ce:inf loc=\"post\">2</ce:inf> hydrogenation to HCOOH.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"3 1","pages":"183032"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221572","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":"M2 macrophage-derived extracellular vesicles reprogram mitophagy homeostasis to promote senescent bone regeneration via PGC-1α pathway","authors":"Yige Dai, Weiwen Ge, Peiyu Tang, Yingying Li, Zhuoxuan Zhang, Chenxi Zhang, Yu Xie, Yixin Chen, Lei Zhang, Lei Qi, Changyong Yuan","doi":"10.1016/j.cej.2026.183030","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183030","url":null,"abstract":"Global population aging has markedly increased the prevalence of age-related bone degenerative disorders, largely attributed to the compromised osteogenic capacity of old bone marrow mesenchymal stem cells (O-BMSCs). The progression of age-related bone degeneration is closely associated with impaired mitophagy, which mediates both cellular senescence and stem cell dysfunction. To address these issues, M2-derived extracellular vesicles (M2-EVs) were obtained from macrophages stimulated with IL-4 alone or combined IL-4 and IL-13. In vitro studies demonstrated that both types of M2-EVs exerted beneficial effects by activating mitophagy, while IL-4 + 13-EVs exhibited significantly superior efficacy in ameliorating cellular senescence and rescuing the impaired osteogenic potential of O-BMSCs. Furthermore, transcriptomic profiling and functional verification identified PGC-1α as a core regulator mediating M2-EV-induced mitophagy activation, which predominantly accounted for the protective effects against cellular senescence and dysfunction. To achieve sustained retention and controlled release in situ, M2-EVs were further encapsulated into poly(ethylene glycol) diacrylate (PEGDA) hydrogel microspheres, establishing the M2-EVs@PEGDA delivery system. In senescent cranial defect models, local administration of M2-EVs@PEGDA microspheres significantly promoted new bone formation, accompanied by enhanced PGC-1α expression and elevated mitophagic activity. Collectively, this study demonstrates that M2-EVs exert superior pro-osteogenic effects via PGC-1α-dependent mitophagy, providing a compelling therapeutic avenue for age-related bone degenerative disorders.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"94 1","pages":"183030"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221574","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":"Highly active and coke-resistant Pt–MgAl2O4 aerogel catalyst for quasi-homogeneous cracking of supercritical n-decane","authors":"Yishan Zhou, Xiaoxue Chen, Zewei Bao, Huicheng Yan, Yunbo Xu, Yi Jiao","doi":"10.1016/j.cej.2026.182860","DOIUrl":"https://doi.org/10.1016/j.cej.2026.182860","url":null,"abstract":"Regenerative cooling effectively manages heat in hypersonic vehicles but is limited by insufficient fuel heat sink and wall coking. To address this, this study designed a Pt-based MgAl<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">4</ce:inf> aerogel catalyst for quasi-homogeneous catalysis. Subsequently, its catalytic cracking performance was systematically studied to provide a technical reference and experimental basis for designing efficient, stable catalytic systems for supercritical endothermic hydrocarbon fuels. The Pt-MgAl<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">4</ce:inf> catalyst was found to retain the parent MgAl<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">4</ce:inf> crystal phase, albeit with slightly decreased crystallinity. It exhibited a weak metal–support interaction and was fully reducible under mild conditions. The surface acidity was predominantly weak and medium-strong, with a superhydrophobic–superoleophilic amphiphilic interface. The catalyst lowered the onset temperature to 525 °C and achieved a maximum heat sink of 4.15 MJ/kg, representing a 37% enhancement relative to the blank group. This enhancement was attributed to synergy between acid sites that promote β-scission and Pt that activates C<ce:glyph name=\"sbnd\"></ce:glyph>H bonds. The quasi-homogeneous dispersion markedly suppressed wall coking by shifting coke deposition sites. Compared with the wall-coated mode, the quasi-homogeneous mode delivered a higher heat sink and less wall coke.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"471 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152564","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":"MoS4-cluster-functionalized MOF gel beads for efficient Hg(II) removal: From batch adsorption to predictive fixed-bed modeling","authors":"Chunyu Lv, Zhuoya Fang, Xinyuan Qiu, Junjun Pei, Zhang Lin, Jinming Luo","doi":"10.1016/j.cej.2026.182851","DOIUrl":"https://doi.org/10.1016/j.cej.2026.182851","url":null,"abstract":"Powdered metal-organic frameworks (MOFs) often suffer from poor stability and difficult solid-liquid separation, limiting their practical application in water treatment. To address these challenges, MoS<ce:inf loc=\"post\">4</ce:inf>-cluster-functionalized mesoporous Zr-MOFs were immobilized within a hydroxyl-rich guar gum matrix to fabricate uniform gel beads (GBs) without additional cross-linking agents. The resulting GBs combined the high adsorption performance of MOFs with the mechanical robustness and recoverability of polymeric beads. They exhibited rapid Hg(II) uptake (<ce:italic>K</ce:italic><ce:inf loc=\"post\">f</ce:inf> = 1.28 × 10<ce:sup loc=\"post\">−7</ce:sup> m s<ce:sup loc=\"post\">−1</ce:sup>), a high adsorption capacity (348.7 mg g<ce:sup loc=\"post\">−1</ce:sup>), and &gt;99.1% removal efficiency over a wide pH range (3.0–11.0). Compared with pristine MOF powders, the GBs maintained ~90% of their Hg(II) removal efficiency after 10 adsorption-desorption cycles while reducing material loss from 42.3% to 4.6%, demonstrating greatly improved structural stability and reusability. In fixed-bed column operation, the GBs treated approximately 1785 bed volumes (BVs) at an empty bed contact time (EBCT) of 10 min before breakthrough (5 μg L<ce:sup loc=\"post\">−1</ce:sup>). The pore-surface diffusion model (PSDM) accurately described the column performance (R<ce:sup loc=\"post\">2</ce:sup> = 0.9981) and predicted a substantial increase in treated BVs from 371 to 3012 as EBCT increased from 5 to 30 min. Conversely, increasing the influent Hg(II) concentration from 0.2 to 2.0 mg L<ce:sup loc=\"post\">−1</ce:sup> reduced the treated BVs from 24,166 to 4032 at a constant EBCT of 10 min. Overall, this work enables efficient and stable Hg(II) removal through scalable MOF–polymer gel beads with predictable column performance.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"53 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152565","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 cobalt nanocluster and nanoparticle on carbon nitride photocathode for enhanced dual-photoelectrode sensing","authors":"Yun Chen, Jintao Dong, Yuhang Ge, Pengcheng Yan, Xingwang Zhu, Chengming Sun, Li Xu, Henan Li","doi":"10.1016/j.cej.2026.182808","DOIUrl":"https://doi.org/10.1016/j.cej.2026.182808","url":null,"abstract":"A dual-photoelectrode self-powered sensing system, combining a photocathode and photoanode with high redox reaction capability, enables highly sensitive and selective detection of target analytes. The rational design of both photoelectrodes is critical for enhancing the signal in a self-powered system. Herein, we engineered cobalt nanoclusters and nanoparticles anchored on phosphorus-doped carbon nitride (Co<ce:inf loc=\"post\">NCP</ce:inf>@PCN) as the photocathode, which was coupled with a CdS photoanode to construct a dual-photoelectrode sensing system for efficient and portable detection of lead ions. Co nanoclusters and P doping accelerate electron migration at the Co<ce:inf loc=\"post\">NCP</ce:inf>@PCN photocathode, while Co nanoparticles induce a surface plasmon resonance effect in the visible region to enhance light utilization. The synergistic effects of phosphorus doping and Co nanoclusters/nanoparticles endow the Co<ce:inf loc=\"post\">NCP</ce:inf>@PCN photocathode with a Fermi level more positive than that of the CdS photoanode, facilitating the oxygen reduction reaction and amplifying the open-circuit potential of the dual-photoelectrode system. The sensing system demonstrated excellent lead ion detection performance, with a linear range from 1.1 × 10<ce:sup loc=\"post\">−4</ce:sup> to 8.0 μg L<ce:sup loc=\"post\">−1</ce:sup> and a detection limit of 4.0 × 10<ce:sup loc=\"post\">−5</ce:sup> μg L<ce:sup loc=\"post\">−1</ce:sup>. Furthermore, a miniaturized device based on this dual-photoelectrode sensing system enabled portable lead-ion detection with a limit of 4.0 × 10<ce:sup loc=\"post\">−4</ce:sup> μg L<ce:sup loc=\"post\">−1</ce:sup>, demonstrating its potential for practical application.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"17 1","pages":"182808"},"PeriodicalIF":15.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152566","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":"Laser-induced multiscale structural regulation of MoS2 films for practical ultrahigh-performance flexible strain sensors","authors":"Youfu Wang, Longfei Mi, Xuexiao Ge, Qiang Yuan, Jinshan Lei, Xiaowen Qi, Hongtao Cui","doi":"10.1016/j.cej.2026.182811","DOIUrl":"https://doi.org/10.1016/j.cej.2026.182811","url":null,"abstract":"MoS<ce:inf loc=\"post\">2</ce:inf> is of value for research on strain sensing materials owing to its band structure and carrier transport behaviors that are modulated by strain. However, structural regulation and achieving enhanced sensing performance still remain significant challenges. In this work, the multiscale structural regulation of MoS<ce:inf loc=\"post\">2</ce:inf> films over large areas was successfully achieved under different laser fluences through a fabrication technique assisted by a laser. Optimizing the laser fluence to 5.2 J/cm<ce:sup loc=\"post\">2</ce:sup> enabled both the patterning of microhole arrays and the densification of MoS<ce:inf loc=\"post\">2</ce:inf> nanosheets. Notably, this laser modification induces a localized transformation from an amorphous dominated structure to highly ordered single crystalline domains within the laser-modified MoS<ce:inf loc=\"post\">2</ce:inf> nanosheets. Consequently, both the carrier concentration and mobility are increased. The carrier concentration reaches 1.06 × 10<ce:sup loc=\"post\">17</ce:sup> cm<ce:sup loc=\"post\">−3</ce:sup>, representing a 166% increase compared to the pristine film. The fabricated sensors exhibited an extraordinary gauge factor of 129.28 under strains of ≤0.6%, representing a 635% enhancement over the pristine film. Furthermore, the developed sensors were used to monitor diverse body motions and physiological signals, exhibiting outstanding performance. This work is expected to provide a viable pathway for the structural regulation and mass production of flexible electronic devices.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"53 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152617","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":"Oxidative coking of supercritical-pressure RP-3 in rotating channels: Effects of flow-field reconstruction and pseudo-critical thermophysical behavior","authors":"Jingsong Huang, Zeyuan Cheng, Songbo Nan, Xiang Li","doi":"10.1016/j.cej.2026.182293","DOIUrl":"https://doi.org/10.1016/j.cej.2026.182293","url":null,"abstract":"Regenerative cooling using the heat-sink capacity of supercritical-pressure hydrocarbon fuels is a promising approach for protecting turbine blades. However, oxidative coking can impair heat transfer and block cooling channels, while rotation alters precursor formation, transport, and deposition. This study numerically investigates the flow, heat transfer, and oxidative coking of supercritical-pressure RP-3 aviation kerosene in a rotating channel. Results show that rotation suppresses coking by weakening thermal stratification, whereas flow-field reconstruction causes wall-to-wall deposition differences, at the condition of 5000 r/min. At approximately 400 r/min, coking shifts from concentration-controlled to temperature-controlled behavior. The total deposition rate first increases and then decreases with rotational speed, falling by 78.21% from 1000 to 7000 r/min. Increasing mass flow rate suppresses coking but aggravates deposition nonuniformity; at 1.75 g/s, the total deposition rate on the leading wall of the centrifugal section is 4.60 times that on the trailing wall. Raising the inlet temperature from 300 to 450 K increases the total deposition rate by 138.27%. As heat flux increases, the total deposition rate initially rises but then falls as thermal acceleration shortens the fuel residence time. At higher inlet temperatures or heat fluxes, thermal acceleration reduces local deposition peaks, while thermophysical-property variations near the pseudo-critical temperature reduce leading-to-trailing-wall deposition differences in the centrifugal section. Outlet pressure has a minor effect, with the total deposition rate varying by less than 3% over 3.0–5.0 MPa. Inlet concentration perturbations of ±20% primarily affect deposition magnitude while largely preserving its spatial distribution. A rotation-corrected dimensionless heat-load number captures coking trends at high rotational speeds. These findings support the thermal-protection design of turbine blades.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"9 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152618","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 dual-geometry Co(II) 2D coordination network and reversible vapochromic silicone composites based thereon for organic solvent sensing","authors":"Alexandru-Constantin Stoica, Adrian Bele, Mihaela Balan-Porcarasu, Madalin Damoc, Sergiu Shova, Mihaela Dascalu, Maria Cazacu","doi":"10.1016/j.cej.2026.182856","DOIUrl":"https://doi.org/10.1016/j.cej.2026.182856","url":null,"abstract":"Stimuli-responsive coordination compounds with reversible optical properties are promising for sensing applications, but achieving systems that combine structural adaptability, processability, and device integration is challenging. Here, we report a two-dimensional cobalt coordination polymer, {CoCy<ce:inf loc=\"post\">2</ce:inf>[Co(SCN)<ce:inf loc=\"post\">3</ce:inf>]<ce:inf loc=\"post\">2</ce:inf>}<ce:inf loc=\"post\">n</ce:inf>, (<ce:bold>P1</ce:bold>, Cy = 1,3-bis(cyanopropyl)tetramethyldisiloxane), featuring dual cobalt centers with octahedral and tetrahedral geometries, as revealed by single-crystal X-ray diffraction. Weakly coordinating cyanide and ambidentate thiocyanate ligands, together with a poorly stacked 2D architecture, confer high structural flexibility and enable solvent-induced reorganization of the coordination environment. <ce:grant-number ref><ce:bold>P1</ce:bold></ce:grant-number> exhibits pronounced and reversible solvato- and vapochromic responses due to solvent-dependent changes in cobalt geometry, supported by UV–Vis and NMR studies. Incorporation of <ce:bold>P1</ce:bold> into a cross-linked silicone matrix produces flexible composite films (<ce:bold>CP1</ce:bold><ce:inf loc=\"post\"><ce:bold>x</ce:bold></ce:inf>), in which tetramethyldisiloxane-flanked 2D layers allow efficient delamination, uniform dispersion, and compatibility. The composites combine mechanical robustness (tear strength 0.22–0.39 MPa), high vapor permeability, and long-term stability, enabling reliable optical responses at low <ce:bold>P1</ce:bold> loadings. The hybrid material displays rapid, reversible, and repeatable color changes upon exposure to organic solvent vapors, fully recovering after desorption with no degradation over multiple cycles. Integration into a simple optical vapor-sensing platform, using RGB-to-CIELab conversion and an integrated algorithm, allows detection of organic vapors with reasonable resolutions (for example, about 20 ppm, as estimated gravimetrically for acetone).","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"48 1","pages":"182856"},"PeriodicalIF":15.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152567","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":"Enhanced copper recovery from copper slag via heat transfer medium-assisted cooling and spent carbon anode reduction","authors":"Biao Kuang, Ruinan Zhu, Cheng Yang, Peipei Zhang, Cheng Tan, Ruijin Fan, Jinlong Du, Yong Yu, Jianhang Hu, Hua Wang","doi":"10.1016/j.cej.2026.182876","DOIUrl":"https://doi.org/10.1016/j.cej.2026.182876","url":null,"abstract":"Copper slag, a major solid byproduct of pyrometallurgical copper production, represents a valuable secondary resource for copper recovery. However, conventional slow-cooling and flotation of copper slag are constrained by prolonged ladle cooling and incomplete liberation of Cu-bearing phases. This study proposes an integrated strategy combining cooling assisted by an iron-based heat transfer medium (HTM) with reduction modification using spent carbon anode (SCA). Laboratory experiments, phase characterization, elemental balances, and ladle-scale heat-transfer simulations were conducted. Carbon in the SCA reduced Fe<ce:sup loc=\"post\">3+</ce:sup>-bearing species and promoted fayalite crystallization during cooling, limiting Cu retention in the residual silicate/glassy matrix. The HTM established internal heat-transfer paths and may provide an Fe-rich heterogeneous substrate for the precipitation and growth of Cu-bearing phases. Among the tested conditions, 5 wt% SCA, the HTM, and cooling at 0.25 K/min produced the highest tailings-based flotation Cu recovery of 88.89%, with a tailings Cu grade of 0.077 wt%, although the HTM mass-loss fraction reached 30.50%. At 1 K/min, flotation Cu recovery remained 84.13% and the tailings Cu grade was 0.11 wt%, with lower HTM consumption, representing a more balanced condition in terms of Cu recovery and HTM durability. In the ladle-scale model, the 9-HTM configuration reached the liquid-containing slag-region volume of the conventional case at 34 h after 17.3 h, corresponding to a 49.1% reduction in the time required to reach this reference state. These results provide a laboratory and modeling basis for integrating enhanced Cu recovery with accelerated ladle cooling, while HTM durability and plant-scale thermal performance require further evaluation.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"27 1","pages":"182876"},"PeriodicalIF":15.1,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152619","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}