COMPOSITES PART B-ENGINEERING
·
2026
·
IF 14
Yunzhong Cao,Lina Lai,Hanting Zhu,Ranjith Kumar Kankala,Lixin Wu,Ai-Zheng Chen,Shi-Bin Wang,Yuewei Li
Biomimetic mineralization enhances polymer mechanical properties, but conventional inorganic fillers often induce light scattering and dispersion instability, while solution-mediated mineralization may cause swelling and performance degradation, thereby limiting their use in photocurable 3D printing. In this study, we introduce a combination of volumetric 3D printing and an in situ mineralization strategy through gas diffusion to construct organic–inorganic nanocomposites. By preloading Ca 2+ into the photocurable resin and using a diffusion system containing ammonium bicarbonate, triethylamine, and ethanol, the reaction–diffusion microenvironment was controlled, enabling the in situ nucleation and growth of nanoscale CaCO 3 (∼130 nm) within the printed polymer network. The uniform distribution of nanoparticles and strong interactions led to significant improvements in tensile strength (372%) and toughness (1142%) compared with unmineralized samples. The nanocomposites also showed enhanced cyclic stability and puncture resistance. Leveraging the programmable UV dose distribution inherent in volumetric 3D printing, a gradient in crosslinking density was achieved, which in turn created a gradient distribution of inorganic-phase density and a hierarchical mechanical response to strain. A small amount of PEDOT:PSS was incorporated to endow the nanocomposites with conductivity, broadening their potential applications in flexible strain sensors for human motion monitoring. For the gradient-structured sensor, the sensitivity increased by 1263%, and the response time decreased by 51% compared with the homogeneous material. Together, these findings present a scalable approach to high-performance, gradient-structured 3D-printed organic-inorganic nanocomposites, which are anticipated to expand the scope of functional 3D printing.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124490
·
IF 7.5
Kaixin Qian,Xiao Ma,Mei Hong,Fuping Qian
Conventional air filtration media struggle to simultaneously address secondary biological pollution, the efficiency-permeability trade-off, and the environmental burden associated with disposable polymer filters. Direct blending of agglomerated or dense fillers can destabilize the electrospinning jet, disrupting the fiber network and increasing airflow resistance. In this study, biodegradable PLA nanofibers were combined with eugenol-loaded ZIF-8 nanoparticles to construct an antibacterial air filtration membrane. Prepared through an aqueous route, ZIF-8 served a dual function by regulating the architecture of the fibrous network and acting as a microporous reservoir for the natural antibacterial molecule eugenol. Comparison of pristine PLA, PLA/ZIF-8, and PLA/EUG@ZIF-8 membranes clarified each component's contribution. Pristine PLA provided a biodegradable fibrous matrix but showed inadequate filtration and negligible antibacterial activity. The incorporation of ZIF-8 optimized membrane morphology, enhanced particle capture, and imparted moderate bacterial inhibition. Notably, confinement of eugenol within ZIF-8 pores further enhanced antibacterial activity without disrupting the optimized membrane structure or air permeability. The PLA/EUG@ZIF-8 membrane delivered PM0.3, PM1.0, and PM2.5 filtration efficiencies of 99.62%, 99.99%, and 99.99%, respectively, with a low pressure drop of 69 Pa and a maximum quality factor of 0.1335 Pa⁻¹ . The composite also achieved near-complete inhibition of Escherichia coli (99.74%) and Staphylococcus aureus (99.48%). Numerical simulations showed a filtration trend consistent with the experimental results, indicating that the improved performance was mainly associatedwith the optimized fiber-pore structure rather than simple membrane densification. Thus, MOF-mediated natural antibacterials effectively fabricate biodegradable filters with excellent PM capture, low resistance, and strong antibacterial activity, promoting eco-friendly membranes.
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Small
·
2026
·
IF 11.8
Minan Ye,Yuanjun Li,Handi Deng,Shengjie Xu,Chengkang Li,Jinshuang Hu,Yuhan Shen,Zhenghao Xiao,Juan Xu,Cheng Ma,Hanjie Ying,Chenjie Zhu,Yi Zhou
Combining tumor-associated macrophage (TAM)-targeted immunotherapy with starvation therapy represents a promising strategy for enhancing antitumor efficacy. Energy metabolism and nitrosative stress represent two key metabolic pathways that can effectively guide the efficacy of the combination of TAM-targeted immunotherapy and starvation therapy. However, methods capable of simultaneously profiling of the dynamic interplay between energy metabolism and nitrosative stress during cancer starvation-immunotherapy (CSI) remains challenging. Here, we report a TAM-targeted dual-mode nanoprobe, NNDA, for real-time imaging of energy metabolism and M1-like TAM-mediated nitrosative stress during CSI. The nanoprobe was designed to comprise NAD(P)H-sensitive dye Glu-RB and NO-responsive dye CY-NO assembled on the surface of upconversion nanoparticles, showing excellent selectivity and sensitivity to energy metabolism-associated NAD(P)H and nitrosative stress-associated NO with two independent NIR photoacoustic (PA, 710/1064 nm) and upconversion luminescence (UCL, 660/800 nm) channels. In vitro and in vivo studies confirmed that NNDA accurately tracked metabolic reprogramming and TAM repolarization, revealing that CSI regimens sustain nitrosative stress under energy suppression. Importantly, the ratio R-PA 1064 /PA 710 serves as an early prognostic indicator of treatment outcome, displaying strong correlation with tumor growth inhibition. This work provides a cross-referencing imaging tool for dynamically deciphering metabolic-immune crosstalk, facilitating the screening and optimization of synergistic anticancer therapies.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Yifang Chang,Jialin Zhao,Youbing Wang,Yiman Gu,Xiangwei Li,Jiayao Yang,Ruonan Zhao,Xihao Lin,Zhe Wang
Cross-linked anion exchange membranes (AEMs) have attracted significant attention as an effective strategy for limiting swelling. We synthesized a novel monomer, MOS, which contains seven-membered ring and conjugated structure. In this study, a novel series of AEMs was developed by copolymerizing MOS with 1-methyl-4-piperidone and p-terphenyl. The crosslinked architecture was then created by linking two polymer backbones using 1,4-diazabicyclo [2.2.2] octane (DABCO) as a crosslinker. Incorporating DABCO introduces multiple cationic centers, which not only raises the density of ion-conducting sites but also promotes the formation of more continuous pathways for ion transport. Furthermore, the conjugated structure within the polymer backbone further promotes ion transport. Based on the above design, the cross-linked AEMs prepared effectively improved the trade-off between swelling ratio and ionic conductivity. The QPTP-MDA-9 AEM synthesized via this strategy exhibited ideal conductivity of 183.41 mS cm -1 at 80 °C, with a swelling ratio of only 16.73%. Anion exchange membrane fuel cells (AEMFCs) utilizing this membrane achieved peak power density of 1.02 W cm -2 . After soaking in 2 M NaOH solution at 80 °C for 1056 h, the membrane retained 93.26% of its initial conductivity. The comprehensive performance of the prepared AEMs surpasses that of most advanced AEMs, demonstrating broad application prospects.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhihui Wen,Erli Ding,Yongjie Bai,Xiaochan Liu,Yourong Wei,Ge Li,Benhua Xu,Bingxin Liu
A novel ionic COF was synthesized firstly using betaine molecule as the quaternary ammonium source. • This iCOF enables facile synthesis and low cost ($88.31/kg), showing promising potential for practical applications. • Abundant binding sites and confined pores enable the material to achieve excellent Cr(VI) adsorption. • The iCOF achieves superior adsorption selectivity for Cr(VI) against competing anions ( Cl − , Br − , NO 3 − , SO 4 2 − , and CO 3 2 − ). Due to the high toxicity of Cr(VI), the development of adsorbents for effective elimination of Cr(VI) from wastewater is urgently required. Covalent organic frameworks(COFs) show great promise in heavy metal remediation. However, most COFs suffer from high costs and poor anti-interference performance, which severely restricts their practical applications. To address these limitations, natural betaine was firstly utilized as precursor to construct a novel quaternary ammonium-grafted COF structure (iCOF-BHC) via a bottom-up strategy. Grafted betaine introduces abundant quaternary ammonium sites and extra amide sites. Combined with the hydrazone groups and confined pore of the framework, these functional moieties exert multi-synergistic effects to construct precise host-guest interactions, thereby realizing superior selective adsorption toward Cr(VI). The equilibrium adsorption capacity of iCOF-BHC at 10 °C is 132.73 mg g −1 (under ambient winter conditions in Qinghai Province)，and further heating significantly improves adsorption rate and uptake capacity. iCOF-BHC exhibits outstanding selectivity for Cr(VI) in the presence of competing anions ( Cl − , Br − , NO 3 − , SO 4 2 − and CO 3 2 − ), as well as excellent recyclability, with negligible attenuation in adsorption capacity after six cycles. Furthermore, compared with the vast majority of existing COFs, it exhibits significant cost advantages and is more suitable for practical industrial applications. This work develops a facile, low-cost, and innovative strategy for the fabrication of cationic COFs, providing a viable strategy and experimental basis for the efficient adsorption of Cr(VI) from wastewater. Betaine-grafted cationic hydrazone iCOF for effective removal of Cr (VI) in wastewater. Download: Download high-res image (224KB) Download: Download full-size image
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Dan Wu,Yanni Lang,Liang Xu,Qiyuexin Wang,Qiu Fu,Bingli Li,Xinye Zhao,Zhaoyi Yin,Yongjin Li,Dacheng Zhou,Yangke Cun,Zhiguo Song,Yugeng Wen,Yong Yang,Jin Han,Jianbei Qiu
The circular dichroism (CD) signal of D-BiOBr/Bi 0.3 g flipped and intensified. • The nanosheets of D-BiOBr/Bi 0.3 g were arranged in a spiral (counterclockwise) manner, forming petal-shaped nanospheres. • 0.3 g D-BiOBr/Bi exhibits a CO production rate of 84.27 μmol・g −1 h −1 , 3.34 times the value of D-BiOBr and 4.00 times that of 0.3 g pristine BiOBr/Bi sample. • LSPR boosts the migration of spin−down polarized electrons and improves the separation efficiency of photogenerated electron−hole pairs. Chiral inorganic nanomaterials have shown considerable promise in photocatalysis, owing to their distinctive optical activity and asymmetric interfacial effects. Metallic bismuth (Bi) exhibits a localized surface plasmon resonance (LSPR) effect, which markedly enhances both the generation and separation efficiencies of photogenerated electron-hole pairs. By employing D-sorbitol as a chiral inducer, we successfully synthesized chiral D-BiOBr/Bi nanocomposites. We propose that the synergistic integration of metallic Bi and chiral BiOBr enables effective modulation of chirality-induced spin selectivity (CISS), thereby enhancing spin polarization and promoting CO production from CO 2 reduction. Among the prepared samples, D-BiOBr/Bi 0.3 g exhibited the highest photocatalytic CO 2 reduction activity, selectively converting CO 2 to CO. The CO production rate of D-BiOBr/Bi 0.3 g was 84.27 μmol g −1 h −1 , which was 4.00 times and 3.34 times that of BiOBr/Bi 0.3 g and D-BiOBr respectively. Furthermore, magnetic conductive atomic force microscopy (Mc-AFM) measurements revealed that D-BiOBr/Bi 0.3 g generated the strongest tunneling current with an opposite polarity compared to its controls, providing indirect evidence for CISS-associated spin-selective charge transport. Collectively, our findings demonstrate a strong coupling between the LSPR of metallic Bi and structural chirality, which cooperatively boosts spin-polarized electron generation, accelerates electron-hole pair separation, and significantly improves photocatalytic CO 2 reduction performance.
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Small
·
2026
·
IF 11.8
Qian Ning,Chengcheng He,Xiaolin Xue,Yan Zhang,Longqing Zhang,Yuhong Liang,Yang Ren,Jing Xu,Xucai Yin
The two-electron oxygen reduction reaction (2e − ORR) provides a sustainable route for green hydrogen peroxide (H 2 O 2 ) synthesis, but the development of p -block metal catalysts that combine high activity with long-term stability remains challenging. Herein, we propose a hierarchical core-shell catalyst, SiO 2 @C/Sn. Mesoporous silicon dioxide (SiO 2 ) serves as a rigid confinement scaffold to effectively suppress the migration and aggregation of Sn nanoparticles. Simultaneously, a conductive carbon layer was in-situ formed on the SiO 2 surface, markedly enhancing interfacial charge transport. Importantly, the interfacial electronic structure of the Sn nanoparticles is moderately tuned by the combined effect of SiO 2 confinement and the continuous electronic interface provided by the carbon layer, thereby maintaining an optimal adsorption-desorption balance for the *OOH intermediate and significantly improving selectivity toward the 2e − pathway. SiO 2 @C/Sn achieves H 2 O 2 selectivity exceeding 97% and a production rate of 16.15 mol·g − 1 ·h − 1 in alkaline media, while 80% selectivity with a yield of 8.13 mol·g − 1 ·h − 1 in neutral media. The catalytic activity shows almost no decay after 100 h of continuous operation. In-situ spectroscopies combined with DFT calculations further reveal that polarization coupling at the SiO 2 -carbon interface induces electronic redistribution that optimizes the electronic states of Sn sites and thereby stabilizes the 2e − reaction pathway.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·Vol. 65
·期 29
·15483-15492
·
IF 3.9
Yuan Jiang,Xiong Jing,Ma Yaxiao,Quan Xiaolong,Wei Yuechang,Xu Linsheng,Li Yuanfeng,Liu Jian,Zhao Zhen
A series of three-dimensionally ordered macromesoporous
(3DOMM)
Ce x Mn 0.3-x Zr 0.7 O δ catalysts were synthesized by an evaporation-induced
self-assembly combined with a colloidal crystal template (EISA-CCT)
method. These catalysts exhibit excellent soot combustion activity
and possess an intact 3DOMM structure. The electronic synergy between
Mn and Ce was investigated. Mn facilitates the reduction of Ce 4+ to Ce 3+ and the generation of oxygen vacancies,
thereby increasing active oxygen species, while Ce oxidizes Mn 2+ to Mn 3+ /Mn 4+ , which enhances the intrinsic
redox ability and NO oxidation. Among the tested samples, the Ce 0.15 Mn 0.15 Zr 0.7 O δ catalyst
exhibits activity comparable to that of noble-metal catalysts and
excellent stability, which can be attributed to the maximized Ce–Mn
synergy and the intact 3DOMM morphology.
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CHEMISTRY OF MATERIALS
·
2026
·Vol. 38
·期 13
·6897-6907
·
IF 7.1
Xia Zhaoji,Gao Min,Xie Qingyi,Zhang Yichen,Gao Xinhua,Zhang Guoliang,Pan Jiansen,Ma Chunfeng
Marine biofouling and corrosion pose
significant challenges
to
the marine industry. However, conventional coatings generally fail
to integrate antibiofouling, anticorrosion, and underwater painting
functions, limiting their effectiveness in harsh marine environments.
In this study, we fabricated a multifunctional coating comprising
bisphenol A epoxy resin, hyperbranched thiol-oligosiloxane (HPSi-SH),
and a zwitterionic precursor modified with fluorocarbon chains and
epoxy groups. When coated on a substrate, the zwitterionic precursor
tends to enrich on the coating surface due to the low surface energy
of its fluorocarbon chains, thereby forming a self-stratifying structure.
Furthermore, the epoxy groups in the precursor, along with the epoxy
resin, cross-link with the HPSi-SH to form high-density three-dimensional
networks. After immersion in seawater, the coating surface hydrolyzes
and transforms to a hydrophilic zwitterionic layer. This layer prevents
the absorption of proteins and the adhesion of bacteria ( Escherichia coli , Staphylococcus aureus , Pseudomonas sp.), diatoms ( Navicula incerta ), and oils. The epoxy–siloxane
hybrid matrix maintains strong adhesion to various substrates and
exhibits excellent corrosion resistance. In addition, the unique fast-curing
and hydrophobicity of the coating before hydrolysis allow for underwater
painting. This study presents a strategy for designing multifunctional
coatings that combine durability, antibiofouling, and anticorrosion
properties for marine applications.
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ADVANCED ENGINEERING MATERIALS
·
2026
·
IF 3.6
Liming Li,Xiaoshuai Wang,Ziyang Sun,Wencai Wang
Small-molecule additives such as antioxidants and aromatic oils are widely used in rubber compounds to enhance performance. After prolonged storage or service, they migrate outward, forming a blue iridescent bloom on surfaces. This spoils visual quality, depletes functional additives and degrades the rubber's overall mechanical properties. Therefore, addressing the issue of additive migration and discoloration is imperative to meet the increasing demands for rubber product performance. A study investigated the migration resistance of antioxidant 4020 by partially replacing treated distillate aromatic extract (TDAE) with the migration-resistant high-molecular-weight plasticizer D1050. The effects on the migration rate of antioxidant 4020 were examined, along with the impact on rubber's appearance quality, mechanical properties, migration resistance, and aging resistance. Results indicate that co-using 7 phr D1050 minimizes TDAE dosage while achieving maximum sustained-release effect. The migration rate of antioxidant 4020 decreased by 21.27%, and the aging coefficient K increased by 18.5%. Due to its superior migration resistance, its efficacy persists longer in ozone aging durability tests without causing excessive blooming accumulation. Within the range of compound formulations containing D1050 and TDAE, the mechanical properties of the rubber remained essentially unchanged. D1050 enhanced its resistance to ozone aging.
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ENERGY & FUELS
·
2026
·Vol. 40
·期 30
·16299-16315
·
IF 6
Wu Zhi-Ming,Yang Yang,Ye Shuang-Xiang,Yang Jie-Yuan,Liang Ke-Sheng,Li Wei-Yang,Zhong Chuan-Rong
After long-term waterflooding, considerable adhered residual
oil
remains trapped in reservoir pores, and its mobilization is jointly
restricted by capillary forces, oil–solid adhesion, and local
wettability. Herein, amphiphilic magnesium-based nanosheets (AMN)
were prepared via amino functionalization and hydrophobic-chain grafting
to improve the mobilization of adhered residual oil after waterflooding.
AMN exhibited a two-dimensional sheet-like morphology, with a lateral
size of approximately 70–160 nm and a thickness of 12–13
nm. Interfacial tests demonstrated that AMN reduced the oil–water
interfacial tension, altered the wettability of oil-wet surfaces,
and improved emulsion stability. To further reveal the dynamic detachment
mechanism of adhered oil films, a dynamic oil-film shrinkage evaluation
method was developed, and a comprehensive detachment index, F detach , was established by integrating oil-film area detachment,
shrinkage kinetics, apparent adhesion release, and interfacial tension
reduction capability. The results showed that AMN rapidly induced
oil-film boundary recession and contact-angle increase, transforming
adhered oil films from a spreading state into a contracted, weakly
adhered, and more mobilizable state. The F detach value
of AMN reached 0.9232, which was significantly higher than those of
SDBS and water, and random-weight sensitivity analysis confirmed the
robustness of this evaluation. Microscopic displacement experiments
showed that AMN effectively mobilized multiple types of residual oil,
achieving a final microscopic recovery of 93.08%. Core flooding further
confirmed that AMN achieved a final recovery of 41.40% and an incremental
recovery of 21.21%, approximately 2.25 times that of SDBS. These results
demonstrate that AMN enhances adhered residual oil mobilization through
the synergistic effects of interfacial tension reduction, wettability
regulation, emulsion stabilization, and dynamic oil-film detachment,
providing guidance for the design and evaluation of nanosheet-based
oil-displacing agents.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhifang Liu,Le Liu,Kunxiang Deng,Jiejun Li,Caiyu Ge,Xiang Ye,Yixi Xie,Pengcheng Zhao,Junjie Fei
Cotton-derived carbon coupled with Ce-doped ZnO via in-situ pyrolysis. • Portable Ce-ZnO-CNF@CC/SPE sensor was developed for on-site CPZ detection. • DFT verified optimized electronic structure and accelerated charge transfer. • Ultrasensitive response with a low limit of detection. • Reliable recovery in real samples for environmental monitoring. On-site monitoring of the emerging organic pollutant chlorpromazine (CPZ) is severely limited by the absence of low-cost, portable, and high-performance sensors. Herein, a disposable screen-printed sensor (Ce-ZnO-CNF@CC/SPE) was fabricated by in-situ growing Ce-doped ZIF-8 on cotton-derived carbon, followed by a one-step pyrolysis strategy. Density functional theory (DFT) calculations confirmed that trace Ce doping induces robust p-d-f orbital hybridization with the host lattice without structural disruption. The introduction of Ce 4f impurity levels narrows the band gap and significantly elevates the density of states near the Fermi energy. This robust electronic modulation accelerates charge-transfer kinetics and optimizes the CPZ adsorption affinity. Under optimized conditions, the fabricated sensor exhibited a remarkably broad linear range and an ultra-low limit of detection, along with excellent anti-interference, reproducibility, and stability. Furthermore, highly accurate and reliable recoveries were achieved in complex real-world matrices, including human serum and environmental water samples. This work provides a reliable portable platform for on-site CPZ monitoring and establishes an electronic structure-activity paradigm for designing highly dispersed, biomass-derived carbon-based sensors. Download: Download high-res image (151KB) Download: Download full-size image
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