Chemical Engineering Journal最新文献

{"title":"Composition-tuned Ni[sbnd]Mn ammine chloride-related microspheres with a nanocube-assembled architecture for high-performance supercapacitors","authors":"Qianqian Zhang, Zhiying Lin, Weicheng Zheng, Mizi Fan, Guanben Du, Weigang Zhao","doi":"10.1016/j.cej.2026.183002","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183002","url":null,"abstract":"Advanced battery-type Faradaic electrodes require a rational combination of high charge-storage capability, fast reaction kinetics, and structural stability during prolonged cycling. Herein, we report a facile one-step solvothermal strategy for the synthesis of composition-tuned Ni<ce:glyph name=\"sbnd\"></ce:glyph>Mn ammine chloride-related microspheres with a hierarchical nanocube-assembled architecture. By varying the nominal precursor Ni/Mn molar ratio from 3:1 to 1:3, the composition-dependent structural evolution, surface chemistry, and electrochemical properties were systematically investigated. Among the obtained samples, NMC-2 (nominal precursor Ni:Mn = 2:1) exhibits the most uniform microspherical morphology assembled from densely packed nanocubes, together with a balanced pore structure and accessible electrochemical interfaces. Benefiting from composition-dependent redox chemistry and optimized structural characteristics, NMC-2 delivers a high specific capacitance of 1431 F g<ce:sup loc=\"post\">−1</ce:sup> at 1 A g<ce:sup loc=\"post\">−1</ce:sup> in a three-electrode configuration. When assembled into an asymmetric supercapacitor with balsa-derived activated carbon, the device achieves an energy density of 81.9 Wh kg<ce:sup loc=\"post\">−1</ce:sup> at a power density of 800 W kg<ce:sup loc=\"post\">−1</ce:sup> and retains approximately 100% of its initial capacitance after 15,000 cycles. Density functional theory calculations further reveal composition-dependent modulation of the local electronic structure, metal-ligand interaction, and OH<ce:sup loc=\"post\">−</ce:sup> adsorption behavior, providing complementary insights into the charge-storage characteristics of NMC-2. Post-cycling characterization indicates that the electrode undergoes partial surface reconstruction while retaining Ni/Mn-containing electroactive species and accessible porous features. This work highlights composition regulation of Ni<ce:glyph name=\"sbnd\"></ce:glyph>Mn ammine chloride-related chemistry as an effective strategy for designing high-performance battery-type Faradaic electrodes.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"37 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221505","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":"Shifting from pore-filling to electrophilic trapping: Engineering adsorbent with high-energy binding sites for target-specific capture of ppb-level isopropanol","authors":"Zhengjie Pan, Yinjing Yang, Binxin Fu, Ning Kong, Lidong Feng, Long-Fei Ren, Kan Li, Jinping Jia, Jiahui Shao","doi":"10.1016/j.cej.2026.183102","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183102","url":null,"abstract":"Efficient isopropanol (IPA) removal at parts-per-billion (ppb) levels is critical for minimizing wafer defects in semiconductor cleanrooms. However, contemporary adsorbents predominantly target medium-to-high-concentration parts-per-million (ppm) regimes, leaving trace-level capture mechanisms unclear. Herein, comparative dynamic adsorption evaluations across ppm and ppb regimes were conducted using adsorbents with different specific surface areas. Results showed that unlike the conventional “pore-filling mechanism” at the ppm level, expanding specific surface areas under 800 ppb yielded diminishing and even adverse returns. To break this thermodynamic bottleneck, a series of high-energy adsorption sites were engineered on activated carbon without altering textural properties. Based on the ascending surface electrophilicity from N to O and further to transition metals (M), a well-regulated electrophilic ladder was constructed to leverage strong chemical electrophilic-nucleophilic interactions. DFT calculations verified that constructing these high-energy adsorption sites sequentially deepened the thermodynamic adsorption energy (<ce:italic>E</ce:italic><ce:inf loc=\"post\">ads</ce:inf>) from −13.60 to −79.35 kJ/mol. Dynamic breakthrough evaluations showed that a modest correlation was observed between <ce:italic>E</ce:italic><ce:inf loc=\"post\">ads</ce:inf> and adsorption capacities, providing clues to underlying mechanism: the trace-level adsorption process might be predominantly influenced by the interfacial electronic interaction energy rather than pore-filling effects. Compared with pristine activated carbon, the optimized 5CuO/AC exhibited a supreme dynamic breakthrough capacity of 8.0201 mg/g, improving the saturated adsorption capacity (<ce:italic>q</ce:italic><ce:inf loc=\"post\">sat</ce:inf>) and saturation time (<ce:italic>t</ce:italic><ce:inf loc=\"post\">s</ce:inf>) by 111% and 68%, respectively. This work suggests that tailoring high-energy sites is crucial for efficient trace VOC capture, offering a promising purification strategy to support high-yield semiconductor fabrication and green electronics manufacturing.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"9 1","pages":"183102"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221509","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":"Interfacial prelithiated scaffold enables uniform Mg electrodeposition for highly reversible Mg-metal batteries","authors":"Jing Liu, Jun Wang, Zihan Liu, Fangxu Dai, Zhonghua Zhang, Guicun Li","doi":"10.1016/j.cej.2026.183075","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183075","url":null,"abstract":"Rechargeable Mg-metal batteries have attracted extensive attention due to the low cost, high safety and high volumetric capacity merits of Mg-metal anode, yet their development is substantially impeded by critical challenges, such as sluggish Mg<ce:sup loc=\"post\">2+</ce:sup> desolvation kinetics and non-uniform Mg electrodeposition. Here we develop a self-supported prelithiated carbon cloth (Li@CC) scaffold to synchronically regulate the Mg<ce:sup loc=\"post\">2+</ce:sup> desolvation kinetics and the uniformity of Mg electrodeposits. Molecular dynamics (MD) and density functional theory (DFT) calculations reveal that Li@CC can optimize the solvation structure of Mg<ce:sup loc=\"post\">2+</ce:sup>, promote interfacial ions enrichment, significantly reduce the adsorption energies of critical chloro-complex intermediates (e.g., [MgCl]<ce:sup loc=\"post\">+</ce:sup> or [Mg<ce:inf loc=\"post\">2</ce:inf>Cl<ce:inf loc=\"post\">3</ce:inf>]<ce:sup loc=\"post\">+</ce:sup>). The Mg<ce:glyph name=\"sbnd\"></ce:glyph>Cl bond length is thus elongated and the dissociation energy barrier is decreased. Electrochemical tests demonstrate that, compared with pristine carbon cloth, the Li@CC electrode exhibits a significantly reduced nucleation overpotential, diminished charge-transfer resistance, and exceptional long-term cycling stability. The Li@CC electrode sustains stable cycling for over 2000 h in asymmetric cells, and retains 90.87% of its initial capacity after 5000 cycles at a high rate of 5C rate in full cells. Interfacial and morphology analyses confirm that Li@CC promotes the homogeneous nucleation and growth of Mg, yielding the dense and uniform Mg electrodeposits. Mechanistic insights further indicate that Li@CC significantly enhances plating/stripping reversibility by promoting uniform spatial distribution of Mg<ce:sup loc=\"post\">2+</ce:sup>-containing species. This work establishes a rational, feasible, and scalable surface engineering strategy to regulate the Mg-metal electrodeposition, providing both fundamental understanding and practical guidance for developing ultra-stable Mg-metal batteries.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"14 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221567","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":"Environmental energy enhanced 3D evaporator integrating water-film transport and spontaneous internal convection for efficient water purification","authors":"Ruiqi Li, Lei Wang, Peng Du, Wenzhao Yu, Zeyu Zhao, Junqing Li, Wenjie Zhou, Jingwen Zhang","doi":"10.1016/j.cej.2026.183059","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183059","url":null,"abstract":"Solar-driven interfacial evaporation represents a promising strategy to address global freshwater scarcity. Unlike two-dimensional evaporators that are confined to a single photothermal interface with pronounced thermal losses, three-dimensional evaporators have attracted widespread attention by harvesting environmental energy to significantly enhance evaporation performance. Nevertheless, the structural engineering of 3D evaporators remains a severe challenge that the increase in surface area for practical applications will lead to deteriorated evaporation rates, which mainly originates from insufficient water supply along extended sidewalls and the formation of evaporation dead zones in the central region. Herein, we propose a novel three-dimensional rolled-up evaporation device that enables ambient heat capture and self-induced internal convection. A two-level structure design of regulating liquid film transport - facilitating steam escape is implemented to achieve efficient water evaporation: by tailoring the geometry of the evaporator, a continuous thin water film is formed on the side walls to maintain evaporation cooling and absorb environmental heat; a central pathway is introduced to transform the top steam accumulation area into an internal upward airflow channel, actively eliminating the evaporation dead zone. The as-fabricated device delivers an evaporation rate of 3.24 kg·m<ce:sup loc=\"post\">−2</ce:sup>·h<ce:sup loc=\"post\">−1</ce:sup> under one-sun illumination, along with long-term operational stability and competitive desalination performance. Targeting the synergistic matching between liquid-phase supply and gas-phase output, this work provides significant guidance for the structural design of passive, high-energy-efficiency solar interfacial evaporation systems.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"336 1","pages":"183059"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221575","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":"Efficient and selective solar-driven lithium extraction using a photoelectrochemical ion-sieve system","authors":"Lu Xiong, Haisheng Hu, Meitang Liu","doi":"10.1016/j.cej.2026.183081","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183081","url":null,"abstract":"The rapid growth of the new energy industry has heightened the need for sustainable lithium extraction methods from salt lake brines. However, traditional techniques are frequently limited by their high energy requirements and the complex chemical makeup of raw brines. In this work, we present a novel solar-driven photoelectrochemical (PEC) system that combines a Co-doped TiO<ce:inf loc=\"post\">2</ce:inf> photoanode with a hydrophilically modified LiFePO<ce:inf loc=\"post\">4</ce:inf> (H-LFP) cathode for direct lithium extraction. The addition of Co atoms into the TiO<ce:inf loc=\"post\">2</ce:inf> lattice adjusts its electronic structure, effectively broadening the light absorption range and suppressing photogenerated carrier recombination, thereby providing a robust internal potential to drive the lithiation process. At the same time, the hydrophilic modification of the LFP cathode greatly enhances the solid-liquid interfacial wettability, which speeds up Li<ce:sup loc=\"post\">+</ce:sup> mass transfer and lowers electrochemical polarization. Experimental evaluations in complex raw brines confirm that this dual-modification strategy enables highly selective lithium capture and excellent structural reversibility without an externally applied electrical bias. DFT calculations show that, among the FP facets examined, the (101) facet exhibits the strongest adsorption toward hydrated Li<ce:sup loc=\"post\">+</ce:sup>, while the lower migration barrier of Li<ce:sup loc=\"post\">+</ce:sup> relative to Na<ce:sup loc=\"post\">+</ce:sup> within the olivine framework accounts for the ion-sieving selectivity. This study demonstrates a solar-driven photoelectrochemical strategy that couples solar-energy conversion with an ion-sieve electrode for selective lithium capture from complex salt-lake brines without an externally applied electrical bias.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"414 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221467","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 bulk-interface stabilization via local coordination cluster engineering of P2-type cathode for sodium-ion battery","authors":"Wenhua Cheng, Gaolai Jin, Shize Zhang, Keyi Zhong, Yinghao Wang, Qixiang Tang, Qingcui Liu, Yudai Huang, Anqiang Pan","doi":"10.1016/j.cej.2026.183076","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183076","url":null,"abstract":"P2-type layered oxides are highly promising cathodes for sodium-ion batteries, yet their practical viability is limited by severe structural degradation and irreversible anion redox at voltages above 4.0 V. Although introducing low-valence cations improves lattice stability, it frequently generates localized O 2p non-bonding states that trigger electronic instability. Addressing this challenge, we propose a “local coordination cluster engineering” strategy using P2-Na<ce:inf loc=\"post\">0.67</ce:inf>Li<ce:inf loc=\"post\">0.1</ce:inf>Mg<ce:inf loc=\"post\">0.1</ce:inf>Ni<ce:inf loc=\"post\">0.2</ce:inf>Mn<ce:inf loc=\"post\">0.6</ce:inf>O<ce:inf loc=\"post\">2</ce:inf> as a model system. Combining multiscale characterization with first-principles calculations, we reveal that fluorine (F) doping in multicomponent oxides is non-random. Driven by thermodynamic favorability, F<ce:sup loc=\"post\">−</ce:sup> preferentially replaces oxygen atoms coordinated with Li<ce:sup loc=\"post\">+</ce:sup>/Mg<ce:sup loc=\"post\">2+</ce:sup>, spontaneously forming highly stable localized clusters [LiO<ce:inf loc=\"post\">5</ce:inf>F]/[MgO<ce:inf loc=\"post\">5</ce:inf>F]. In the bulk lattice, these clusters lower the O 2p energy level to fundamentally suppress irreversible oxygen oxidation. They also act as microscopic “rigid pillars” that increase the interlayer slip energy barrier, enabling single-phase solid-solution reaction without P2-O2 phase transition. Concurrently, F enrichment at the particle surface drives the formation of a robust, NaF-rich cathode-electrolyte interphase, which suppresses transition metal dissolution and mitigates parasitic interfacial reactions. As a result of this dual bulk-interface stabilization, the engineered cathode delivers an outstanding capacity retention of 90.3% after 1000 cycles at 5C, while still demonstrating an exceptional capacity retention of 78.7% even at 4.3 V. This study reexamines traditional anion doping and presents a novel strategy for designing atomic-level localized environments in energy storage materials, achieving high energy density and long cycle life.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"3 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221484","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 vinylene bridging and asymmetric configuration suppress energetic disorder for high-efficiency ternary organic solar cells","authors":"Wei Tang, Jing Li, Huizhen Xu, Lei Wu, Shiying Sun, Chen Yang, Xin Song, Weiguo Zhu","doi":"10.1016/j.cej.2026.183067","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183067","url":null,"abstract":"Achieving high-efficiency organic solar cells (OSCs) requires the simultaneous suppression of nonradiative recombination and broadening of absorption spectra, yet these two objectives are often compromised by energetic disorder in the active layer. Minimizing such disorder serves as a pivotal strategy to reconcile this trade-off, enabling high current density without sacrificing open-circuit voltage. Herein, we report Y6-V-F, a novel acceptor designed through synergistic vinylene bridging and asymmetric substitution. Its extended conjugation and enhanced dipole interactions strengthen intermolecular coupling and promote face-on molecular orientation, thereby minimizing energetic disorder and non-radiative recombination losses. When incorporated into a PM6:Y6-based ternary blend, Y6-V-F maintains energy-level alignment with the host binary system while effectively broadening the absorption spectrum. Notably, the improved crystallinity and reduced energetic disorder boost the power conversion efficiency (PCE) from 17.4% (binary) to 18.5% (ternary). To validate the universality of this design strategy, we further applied it to the high-performance D18:L8-BO system by synthesizing L8-V-F, an analogous derivative of L8-BO. The incorporation of L8-V-F achieves identical synergistic regulation of non-radiative recombination and photocurrent generation, elevating the PCE from 19.2% (binary) to 20.5% (ternary). These results establish that combining vinylene bridging with asymmetric substitution represents a generalizable molecular design pathway for minimizing energetic disorder and advancing high-efficiency OSCs.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"64 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221568","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 tumor biomarker-activated transmembrane assembly of oligonucleotide modules for enhanced bioorthogonal catalytic therapy","authors":"Qinglei Shu, Zhexiang Wang, Xinyi Li, Shunli Yang, Xinxing Miao, Rui Lv, Jian Liu","doi":"10.1016/j.cej.2026.183019","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183019","url":null,"abstract":"Bioorthogonal catalysis, as the frontier of anticancer strategies, still faces a critical challenge of spatiotemporally asynchronous accumulation of prodrugs and catalysts at the target disease sites. Here we report a new anticancer concept of an intelligent robotic oligonucleotide catalytic kernel (iROCK) to co-deliver the prodrugs and shielded catalyst for <ce:italic>in situ</ce:italic> bioorthogonal catalysis. In our design, upon aptamer-mediated recognition of tumor biomarker (CD44), the modularized oligos embedded on liposomal membranes can be activated, allowing for trans-membrane reconfiguration to a functional DNA nanorobot. It mediates the bioorthogonal catalysis of indole-3-acetic acid (IAA) inside the liposomal nanoreactor by forming a synergistic active center between G-quadruplex (G4) motifs and hemin. <ce:italic>In vitro</ce:italic>, iROCK enhanced reactive oxygen species (ROS) generation by approximately 3.3-fold in comparison to the freely dispersed control, and suppressed 4 T1 tumor cell viability as low as 9.9%. <ce:italic>In vivo</ce:italic>, iROCK achieved 77.7% tumor growth inhibition in a 4 T1-bearing mouse model. Interestingly, pronounced immunogenic cell death can be activated by iROCK, accompanied by a 2–4 folds increase in intratumoral immune cell infiltration. Therefore, it substantially improved catalytic efficiency and therapeutic output through prodrug-catalyst proximity enabled by iROCK and prevention of undesired dilution in well-controlled nanoreactors. With enhanced tumor suppression assisted by immunogenic cell death, the iROCK technology promises a potent and programmable co-delivery platform for the advanced development of bioorthogonal tumor therapies.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"93 1","pages":"183019"},"PeriodicalIF":15.1,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221588","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":"Thermally engineered ER-Fc-MOF@foam carbon monoliths for polyethylene microplastic remediation: Integrating interfacial capture with Fenton-like oxidative transformation","authors":"Xiaolei Zhang, Nan Gao, Zong Tan, Dongjun Lv, Zhongmin Liu, Qi Tang, Fei Yang, Xiaoli Wang, Hui Zhao, Xueting Liu, Jinyang Li, Jiahao Wang","doi":"10.1016/j.cej.2026.183111","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183111","url":null,"abstract":"Microplastic remediation requires efficient particle capture and interfacial oxidation because dispersed polymers have limited contact with short-lived reactive oxygen species (ROS) in bulk solution. Here, an electroresponsive ferrocene metal–organic framework (ER-Fc-MOF) was grown in situ on thermally engineered foam carbon (CF) to construct ER-Fc-MOF@CF monoliths for polyethylene microplastic capture and subsequent electro-Fenton-like treatment. Carbonization temperature regulated the scaffold architecture, surface chemistry, defect structure, electrical resistivity, and ER-Fc-MOF coverage. Among the investigated samples, CF-900 retained accessible hierarchical porosity while exhibiting the lowest resistivity and densest ER-Fc-MOF coverage. The optimized ER-Fc-MOF@CF-900 achieved 91.14% flow-through removal from a 100 mg·L<ce:sup loc=\"post\">−1</ce:sup> polyethylene (PE) suspension. Zeta-potential, FTIR, and XPS analyses suggested pH-dependent electrostatic attraction and localized polar interactions involving oxygen-containing groups, while the interconnected monolith facilitated particle interception and retention. The low-resistance CF-900 scaffold supported electron transport and H<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">2</ce:inf> activation at ER-Fc-MOF domains. SEM, EDS, FTIR, and XPS showed progressive PE surface oxidation, including roughening, oxygen enrichment, and increased C<ce:glyph name=\"sbnd\"></ce:glyph>O, C<ce:glyph name=\"dbnd\"></ce:glyph>O, and O–C=O signals, while EPR identified ·OH, ·O<ce:inf loc=\"post\">2</ce:inf><ce:sup loc=\"post\">−</ce:sup>, and <ce:sup loc=\"post\">1</ce:sup>O<ce:inf loc=\"post\">2</ce:inf>. After 36 h, dissolved organic carbon (DOC) reached 67.21 mg·L<ce:sup loc=\"post\">−1</ce:sup> in the PE-containing system versus 8.80 mg·L<ce:sup loc=\"post\">−1</ce:sup> in the PE-free control, supporting PE-associated dissolved organic carbon release. This work establishes a self-supporting MOF–carbon platform coupling PE capture, flow-through interception, and interfacial oxidative transformation.","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":"149221599","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":"Charge-transfer-regulated boron difluoride formazanate nanoparticles for NIR-II fluorescence/photoacoustic imaging-guided type-I photodynamic and photothermal therapy","authors":"Kang Xu, Jianchuan Ran, Leicheng Wang, Weili Wang, Jiuhui Zhang, Xiteng Yin, Yan Zhang, Menglong Hu, Jinjun Shao, Xiaochen Dong, Wei Han","doi":"10.1016/j.cej.2026.183090","DOIUrl":"https://doi.org/10.1016/j.cej.2026.183090","url":null,"abstract":"Developing organic nanotheranostics that integrate bright second near-infrared (NIR-II) fluorescence, photoacoustic contrast, and efficient phototherapy remains challenging. Herein, we introduce a donor–acceptor–donor boron difluoride formazanate dye, BDFCN, for constructing charge-transfer-engineered nanoparticles with integrated NIR-II fluorescence, photoacoustic imaging, and phototherapeutic capabilities. The electron-deficient boron difluoride formazanate core and electron-rich donor segments promote strong intramolecular charge transfer, enabling balanced excited-state energy dissipation through NIR-II emission, nonradiative photothermal conversion, and electron-transfer-mediated Type-I reactive oxygen species generation. After nanoparticle formulation, BDFCN NPs deliver intense NIR-II emission with a remarkable Stokes shift (286 nm) and a high NIR-II fluorescence quantum yield (FLQY = 1.65%). BDFCN NPs enable high-contrast imaging of blood vessels, lymphatic drainage, and tumors, while providing robust photoacoustic signals for three-dimensional tumor visualization. Moreover, BDFCN NPs facilitate efficient superoxide radical (O<ce:inf loc=\"post\">2</ce:inf><ce:glyph name=\"rad\"></ce:glyph><ce:sup loc=\"post\">−</ce:sup>) generation and exhibit a photothermal conversion efficiency of 36.5%, allowing combined Type-I photodynamic and photothermal therapy under 808 nm photoirradiation. Leveraging NIR-II fluorescence/photoacoustic imaging, BDFCN NPs achieve effective tumor ablation <ce:italic>in vivo</ce:italic> with negligible systemic toxicity. This work highlights charge-transfer engineering as a useful strategy for constructing single-scaffold BDF-based NIR-II phototheranostics.","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":"149221468","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}