SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Huiping Huang,Dan Zhao,Yuanfa Liu,Shuhui Chen,Lele Wang,Jizhong Ren
With the escalating environmental challenges posed by CO 2 emissions, particularly the greenhouse effect, the development of efficient CO 2 utilization and storage technologies have become critically important. The mixed matrix membranes (MMMs) have emerged as promising candidates for gas separation due to their superior permeability and selectivity. However, practical applications are often hindered by issues such as nanoparticle agglomeration and poor compatibility between fillers and polymer matrices. In this study, a pre-assembly strategy was proposed. Through 2-methylimidazole (Hmim) served as a molecular bridge connecting the ZIF-67 with the polydimethylsiloxane-poly(ethylene oxide) (PDMS-PEO) block copolymer, the ternary ZIF-67-Hmim-PDMS-PEO nanofluid was constructed, which was subsequently blended with Pebax1657 to fabricate high-performance MMMs for CO 2 separation. Comprehensive characterization of the ZIF-67-Hmim-PDMS-PEO/Pebax1657 MMMs was conducted using SEM, XRD, FTIR, TGA, and DSC techniques. The results demonstrated that the ternary blending strategy involving ZIF-67, Hmim, and PDMS-PEO not only significantly enhanced the dispersion stability of ZIF-67 nanoparticles but also improved their compatibility with the polymer matrix. Remarkably, the incorporation of ZIF-67-Hmim-PDMS-PEO nanofluid led to substantial improvements in CO 2 permeability while maintaining selectivity. The membrane with 20 wt% ZIF-67-Hmim-PDMS-PEO demonstrated CO 2 /N 2 selectivity significantly surpassed that of the membrane prepared without pre-assembly. The membrane containing 30 wt% nanofluid exhibited a 235% enhancement (343.0 Barrer) in CO 2 permeability compared to pristine Pebax1657 membranes, with the selectivity of 51.2, reaching the 2008 upper bound for CO 2 /N 2 separation. These findings highlight the effectiveness of our approach in addressing key challenges in MMMs development for advanced gas separation applications.
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FUEL
·
2026
·
IF 7.8
Shijie Wang,Xudong Zheng,Sifan Bao,Zihuai Xu,Zhouzhou Yang,Wei Sun,Jinfeng Mei,Jian Rong,Zhongyu Li
Porous carbon has emerged as a promising material for CO 2 capture owing to its low cost, high specific surface area, and tunable porosity, with surface chemistry and pore architecture serving as critical determinants of adsorption performance. To prevent specific surface area loss in heteroatom-doped biochar—a common limitation, bacterial cellulose (BC) was employed as a structural template to facilitate the in-situ growth of nitrogen-rich ZIF-8 crystals along its fibrous network, forming hybrid composites. Subsequent carbonization yielded N-doped biochar featuring a highly porous, three-dimensionally interconnected architecture. BC contains a large number of oxygen-containing groups. This can facilitate the uniform growth of ZIF-8 along nanofibers. During the high-temperature carbonization process, ZIF-8 creates a large number of micropores through gasification etching and is simultaneously transformed into high-concentration nitrogen-doped porous carbon nanofibers. The 900 °C carbonized sample (CBCZ-900) combines high specific surface area and outstanding CO 2 adsorption (5.35 mmol/g) with exceptional cycling stability, positioning it as a viable candidate for industrial carbon capture systems.
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CARBOHYDRATE POLYMERS
·
2026
·
IF 13.2
Lihua Fan,Jiangxue Wang,Luyao Zhang,Wenrui Li,Di Wu,Yongning Wu,Guoliang Li
A multifunctional ZIF-67@Carmine (ZIF-67@Car) nanomaterial was synthesized and incorporated into a matrix of konjac glucomannan and carboxymethyl chitosan (KGM/CMCS, KC) to fabricate an intelligent active packaging film with dual functionality: active preservation and real-time freshness monitoring. Results indicated that KC remarkably enhanced the uniform distribution of ZIF-67@Car particle. Meanwhile, the addition of 20% ZIF-67@Car significantly improved the mechanical performance, hydrophobicity, and UV-blocking ability of the composite film. The optimized film demonstrated an ultimate tensile strength of 10.16 ± 1.05 Mpa and an elongation at break of 27.87 ± 3.53%. For active preservation, the film exhibited strong antioxidant activity (approximately 50% higher than pristine KC film) and potent antibacterial properties with over 99% inhibition rate. For intelligent monitoring, the film displayed a distinct colorimetric response to ammonia, transitioning from purple to brown during shrimp spoilage tests, enabling real-time visual freshness assessment. These findings confirm that the KC/ZIF-67@Car nanocomposite films, endowed with excellent antibacterial and ammonia-responsive functions, hold significant potential as intelligent active packaging materials for practical food preservation and quality assessment.
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PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Heng Li,Rongxin Guo,Chang Liu,Dexin Chen,Junjie Yang,Qiwei Wang,Peng Zhang
A TA-PEI “molecular bridge” strategy was devised for robust in-situ growth of ZIF-8 on PES membranes. • The composite membrane exhibited 175.48 L·m −2 ·h −1 flux and 98.29% oil rejection. • The membrane exhibited outstanding stability in highly alkaline (pH 12) environments. • Mechanical strength was significantly improved due to ZIF-8 reinforcement and crosslinking synergy. The treatment of highly alkaline, surfactant-stabilized oily wastewater from electroplating pretreatment poses a significant challenge for membrane technology. Conventional polyethersulfone (PES) ultrafiltration membranes suffer from severe fouling and chemical degradation under such harsh conditions. To address these dual limitations of performance and stability, this study developed a “blending-in-situ growth” strategy to fabricate a ZIF-8/TA-PEI/PES composite membranes. The TA-PEI interlayer acts as a molecular bridge, enabling uniform and robust anchoring of the ZIF-8 coating. The optimized membrane exhibited a pure water flux of 175.48 L·m −2 ·h −1 (≈4.5× that of pristine PES) and a high flux recovery rate of 75.86%. For surfactant-stabilized oil-in-water emulsions, it achieved 98.29% rejection, maintaining 96.54% efficiency over 10 cycles. Crucially, it demonstrated exceptional alkali resistance, retaining 92.17% rejection after 72 h at pH 12, alongside a tripled tensile strength (3.01 MPa). This work provides a durable and high-performance membrane solution engineered specifically for the demanding separation of complex industrial wastewater. Download: Download high-res image (249KB) Download: Download full-size image
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Surfaces and Interfaces
·
2026
·
IF 6
Anh-Tuan Pham,Dang Thi Hanh Trang,Ngo Thi Loan,Nguyen Thai Huy,Nguyen Ha Anh,Ta Ngoc Bach,Quan-Doan Mai,Anh-Tuan Le
Styrene is one of the most important volatile organic compounds (VOCs) used extensively in polymer and composite manufacturing, where occupational exposure occurs predominantly through inhalation of its vapor. Although surface-enhanced Raman spectroscpoy (SERS) offers exceptional sensitivity for molecular analysis, its application to vapor-phase detection remains challenging because volatile molecules are difficult to efficiently accumulate at plasmonically active sites. Consequently, conventional styrene vapor analysis generally relies on multistep workflows involving vapor sampling and analyte desorption prior to analysis. Herein, we report a flexible Cellulose/ZIF-8/Ag SERS chip combined with a simple attach-and-capture strategy for direct solvent-free detection of styrene vapor. By attaching the SERS sensing chip to the inner surface of a vial cap, vapor sampling and SERS detection were integrated into a single workflow without additional sample pretreatment. The developed SERS platform achieved a detection limit of 240 mg/m 3 , below current occupational exposure limits for styrene, together with excellent analytical reliability (RSDs of 1.89% within a single chip and 5.29% between independently fabricated chips), good selectivity for styrene, stable performance under high relative humidity, robust SERS activity after repeated mechanical deformation, and outstanding post-sampling signal stability. By separating passive vapor accumulation from subsequent spectroscopic analysis, the attach-and-capture configuration enables the chip to be deployed in advance and retrieved for rapid on-demand SERS readout, offering operational flexibility beyond conventional multistep sampling workflows. These findings establish the proposed attach-and-capture strategy as a practical analytical workflow for integrating vapor sampling and SERS detection into a single solvent-free operation for rapid occupational monitoring of styrene vapor. Download: Download high-res image (171KB) Download: Download full-size image
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PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2026
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IF 7.9
Fei Yan,Wenhui You,Guangle Zhou,Lina Wei,Xiaolong Yang,Luao Wu,Jun Ke,Lidong Wang
This study synthesized Co 3 O 4 by calcining ZIF-67, and further prepared Co 3 O 4 -V O -3 catalyst rich in oxygen vacancies through NaBH 4 reduction. Co 3 O 4 -V O -3 can activate peroxymonosulfate (PMS) to efficiently degrade acetaminophen (APAP). The experimental results indicate that the optimal dosage of NaBH 4 for reducing Co 3 O 4 is 1:1, and the optimal reduction time is 3 h. Under the reaction conditions of 25 °C and pH= 7, 0.1 g/L Co 3 O 4 -V O -3 can degrade over 98.5% of APAP within 5 min, which is much faster than the activity of the original Co 3 O 4 catalyst. XPS analysis showed that the content of Co 2+ and oxygen vacancies in Co 3 O 4 -V O -3 was significantly higher than that in Co 3 O 4 , indicating that the reduction treatment of NaBH 4 resulted in the generation of a large number of oxygen vacancies in Co 3 O 4 . Co 3 O 4 -V O -3 has good environmental tolerance and can maintain good performance in a wide pH range (5−11) and under the interference of various inorganic anions. The results of free radical quenching experiments and EPR tests indicate that multiple reactive oxygen species are generated in the Co 3 O 4 -V O -3/PMS system, among which O 2 •− and 1 O 2 contribute the most to the degradation of APAP. This study provides an efficient and environmentally tolerant catalyst for activating PMS to degrade APAP, providing a reliable option for the removal of recalcitrant pollutants in actual water bodies.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 6
·384
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IF 5.4
Xu Ziyu,Cao Jinru,Wang Ying,Chen Tingsha,Wang Yue,Xu Huaqiu,Zeng Huihui,Huang Wenyi,Cheng Hao,Kong Hongxing,Lu Yao,Feng Jun
Human carboxylesterase 1 (hCE1) is a serine hydrolase that is distributed widely in the human liver, intestines, and various tumour tissues. It has now become a biomarker associated with diseases such as cancer. Consequently, the measurement of hCE1 levels in human serum is of significant importance for the diagnosis and assessment of these diseases. The present study involved the preparation of Ag/CQDs/ZIF-8 nanocomposites, which incorporated silver nanoparticles (Ag NPs) and carbon quantum dots (CQDs) into the ZIF-8 framework. The combination of this composite with an enzyme-linked immunosorbent assay (ELISA) and the utilisation of benzidine as the signal molecule resulted in the development of a fluorescence (FL)/surface-enhanced Raman scattering (SERS) dual-mode sensor, which was employed for the sensitive detection of hCE1 in serum. This dual-mode sensor combines the advantages of both FL and SERS technologies, demonstrating excellent selectivity and stability, and enhancing the accuracy and reliability of quantitative measurements. The limits of detection (LOD) for the FL mode and SERS mode were determined to be 0.1 and 0.072 ng·mL − 1 , respectively, with the recoveries ranging from 92.44% to 117.47%. The satisfactory outcomes obtained from testing on real sample confirm the sensor’s excellent suitability for use in complex biological matrices. Consequently, this dual-mode sensor shows considerable promise for the detection of biomolecules in clinical samples, thereby demonstrating significant potential for clinical applications. Graphical abstract The alternative text for this image may have been generated using AI.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Zaohong Zhang,Jing Yang,Dmitry V. Bavykin,Carlos Ponce de León,Kai Zhang,Yong-Wei Zhang,Jia Hong Pan
Nanostructured silicon (Si) is a highly promising anode material for next-generation lithium-ion batteries (LIBs) due to its ultra-high theoretical capacity (Li 22 Si 5 , ∼4200 mAh g − 1 ), yet its practical application is hindered by poor conductivity and drastic volume expansion (300–400%). Here, Si nanoparticles are in situ encapsulated within a ZIF-8 framework, guided by a pre-applied carbon coating, forming a porous core–shell architecture that simultaneously enhances ionic/electronic transport and buffers volumetric changes. The resulting Si@C@ZIF anode delivers a reversible capacity of 1030 mAh g − 1 after 500 cycles at 1.0 A g − 1 . In a full cell with LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811), 76.8% capacity retention is maintained at 0.5 C over 260 cycles. Post-cycling analysis reveals a robust solid electrolyte interphase (SEI) enriched in Li 3 N and LiF. Density functional theory (DFT) calculations indicate that preferential LiPF 6 adsorption facilitates conductive SEI formation, accelerating Li + diffusion and enhancing interfacial stability, demonstrating a low-cost route to highly durable Si/C nanocomposite anodes for practical high-energy LIBs.
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高影响因子
CARBON
·
2026
·
IF 12.7
Jiale Ma,Ying Huang,Hanjie Huang,Xiaoxiao Zhao,Huiyang Jiang,Qianqian Niu,Chenbo Liu,Meng Zong
The rapid development of modern communication technology has exacerbated electromagnetic pollution, creating a strong demand for high-performance electromagnetic wave (EMW) absorption materials. Metal-organic frameworks (MOFs) derivatives are promising candidates owing to their tunable structures and high specific surface areas. However, conventional MOFs-based absorbers still suffer from magnetic component aggregation or insufficient dielectric loss, leading to poor impedance matching and narrow effective absorption bandwidth (EAB). Herein, flexible flower-like non-magnetic ZIF-7-derived nitrogen-doped carbon films were fabricated via electrospinning and controlled carbonization. By regulating carbonization temperature and precursor concentration, the morphology and electromagnetic parameters were optimized. The synergistic effect of the unique flower-like structure and nitrogen doping enhances dielectric loss and optimizes impedance matching. Consequently, ZIF-7-NCF-2 achieves a minimum reflection loss (RL) of −75.50 dB at 2.57 mm and an ultra-broad EAB of 11.36 GHz at 3.35 mm, covering almost the entire X and Ku bands. This work provides a feasible strategy for designing high-performance and broadband non-magnetic MOFs-derived EMW absorption materials.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Rui Sun,Pei Lv,Bingqing Shen,Qian Wu,Yuan Xue,Lin Chen,Weibin Li,Zhenjiang Liu
Imidacloprid (IMI) has potential hazards to human health and honeybees. Herein, we developed a highly sensitive fluorescence polarization immunoassay (FPIA) based on ZIF-8-derived carbon particles (ZIF-8-C) for the detection of IMI in agricultural samples, and studied the effect of different sizes of ZIF-8-derived carbon-antibody conjugates (ZIF-8-C-PDA-mAb) and fluorescence lifetime on the detection sensitivity. The results found that the detection sensitivity of FPIA was related to the particle sizes of ZIF-8-C-PDA-mAb. Under optimized conditions, 220 nm ZIF-8-C-PDA-mAb-based FPIA showed the best limit of detection of 0.46 μg/L, which was 47-fold lower than that of the traditional mAb-based FPIA. The recoveries ranged from 86.75 to 111.75%, with a relative standard deviation below 8.44%. Additionally, FPIA results correlated well with HPLC, with a correlation coefficient of 0.998. This strategy provides a great potential FPIA method for rapid and high-sensitivity detection of pesticides and other small molecule pollutants in environmental and agricultural samples.
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高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Zhao Meng,Haibo Yang,Yongzhen Ma,Yan Cheng,Yanlong Ma,Binglong Zheng,Hongwei Zhou,Ying Lin
In increasingly complex electromagnetic environments, developing high-performance and dynamically tunable electromagnetic wave (EMW) absorption materials is essential. This study designed a pressure-responsive TiO2/CNFs@Co/C elastic aerogel for efficient EMW absorption. A 3D interpenetrating structure consisting of Ti3C2Tx MXene-derived TiO2 nanosheets, magnetic Co/C frameworks, and carbon nanofibers was constructed via electrospinning combined with in situ synthesis. This 3D interpenetrating structure constructs abundant heterogeneous interfaces, thereby enhancing interfacial polarization. The results demonstrate that the composite achieves an exceptionally broad effective absorption bandwidth (EAB) of 8.17 GHz at a thickness of 2.7 mm, with only 10 wt% filler loading. Additionally, the composite exhibits strong environmental tolerance, including hydrophobicity, stretchability, and thermal insulation. Notably, the alginate-induced elastic aerogels enable dynamic tuning from 6.4 to 18 GHz under compressive strains of 0% to 66%. This work designs dynamically tunable, high-performance EMW absorbers through component optimization and interface engineering, providing a promising strategy for the preparation of next-generation multifunctional intelligent EMW absorbers.
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高影响因子
ADVANCED ENGINEERING MATERIALS
·
2026
·
IF 3.6
Yuxuan Wang,Zhenjie Wang,Qingfeng Hao,Xiyu Song,Yunxiang Yin,Hongjuan Zhang,Ruyi Xie
Nowadays, superhydrophobic textiles are widely applied in various fields such as oil–water separation, ultraviolet protection, and self-cleaning surfaces. However, the development of multifunctional textiles that integrate durable performance with wearing comfort remains a significant challenge. To address this issue, a low-liquid-supply preparation strategy was proposed. Superhydrophobic polyester fabrics were fabricated by atomization spraying zinc nitrate hexahydrate and 2-methylimidazole onto the fabric surface, followed by the in situ introduction of polydimethylsiloxane at room temperature. The scanning electron microscopy images showed the formation of ZIF-8/PDMS rough structures on the fiber surface without blocking the original gap structures of the PET fabric. The modified PET fabrics exhibited robust superhydrophobicity even after 100 washing cycles and 10 000 abrasion cycles. Moreover, the superhydrophobic fabrics exhibited excellent self-cleaning and antifouling properties, remarkable ultraviolet protection performance, and high oil/water separation efficiency. Notably, the UPF value of the modified fabric reached 782.68, demonstrating exceptional UV protection by blocking 99.9% of ultraviolet radiation. The oil–water separation efficiencies of the prepared PET fabric reached 97.8% for n -hexane and 98% for chloroform even after 20 cycles. Despite the functional modifications, the PET fabric retains favorable air permeability. This method offers a promising approach for achieving a balance between multifunctionality and wearing comfort in textile design.
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危险品化学品经营许可证（带存储）