SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
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IF 4.8
Pei Wu,Yang Jiao,Li Cheng,Cheng Yao,Xiong Chen
A novel near-infrared luminescent fluorescent composite material, TCPP-His@ZIF-8, was successfully constructed. Through an amide condensation reaction, Tetrakis (4-carboxyphenyl) porphyrin (TCPP) was covalently anchored onto the surface of L-histidine (His) -modified ZIF-8 metal-organic framework. This material serves as a highly sensitive near-infrared fluorescence sensing platform. Upon introducing mitoxantrone (MITX) as a fluorescence quencher, the material achieves highly selective and sensitive fluorescence detection of MITX. Mechanistic studies revealed that the fluorescence quenching of TCPP-His@ZIF-8 by MITX involves multiple mechanisms: the shift in absorption peaks confirms the presence of static quenching, while FRET is the primary mechanism responsible for the shortening of fluorescence lifetime, i.e., the dynamic quenching process. The inner filter effect (IFE) contributes partially to the reduction in apparent fluorescence intensity but is not the dominant factor. Under optimal experimental conditions, the sensor exhibits good linearity for MITX detection within the range of 0.125–14.0 μM, with a detection limit as low as 91.93 nM. Anti-interference and selectivity experiments demonstrated that common interferents and antibiotic analogues did not significantly affect detection. Furthermore, spiked recovery experiments in real samples such as tap water, milk, and human serum yielded satisfactory results, validating the reliability and potential of this method for practical applications.
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PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121778
·
IF 7.5
Jian-Bo Qu,Guo-Yu Yue,Jian-Ling Zhang,Yuan Yang,Dong Wang,Jia-Le An,Jing Li
The excellent catalytic performance of noble metal nanoparticles (NMNPs) is often hampered by their tendency to agglomerate and poor recyclability, which significantly limits their large-scale industrial use. To address these challenges, anchoring NMNPs onto porous supports has been proposed as an effective strategy, as it not only suppresses their migration and agglomeration but also enhances their catalytic stability and recyclability through strong metal–support interactions. In this study, novel poly (glycidyl methacrylate) @ZIF-8@Au (PGMA@ZIF-8@Au) composite microspheres were fabricated via three steps: gigaporous PGMA microspheres were first prepared via suspension polymerization, followed by the in-situ growth and subsequent etching of ZIF-8 on their surface, and finally, the confined loading of gold nanoparticles (AuNPs) with three different sizes. This designed structure effectively mitigates issues such as nanoparticle aggregation, detachment, and mass transfer limitations. The hierarchical pores of the PGMA microspheres provide a high specific surface area and abundant active sites, while the rich epoxy rings create an electron-rich environment that facilitates electron transfer to the AuNPs. Moreover, ZIF-8 improves the structural stability and biocompatibility of the composite microspheres and promotes the uniform dispersion of AuNPs. The resulting catalyst achieved 100 % degradation of p-nitrophenol (PNP) within 20 min and maintained a conversion of 84.8 % after ten consecutive cycles. Based on the synergistic effects between the composite and the AuNPs, a plausible catalytic mechanism was proposed. This work offers a promising strategy for designing highly efficient catalysts for environmental remediation.
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JOURNAL OF SOLID STATE CHEMISTRY
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2026
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IF 3.2
Haoyue Deng,Lizhe Li,Hao Li,Qianguo Fan,Jikuan Cheng,Tiehu Li,Alei Dang,Yongkang Han
To overcome the challenges of particle agglomeration and insufficient stability of ZIF-8 under high-temperature and high-humidity conditions during CO 2 capture, this study developed a ZIF-8/urea-modified graphene oxide (GO) composite and systematically investigated its microstructure, CO 2 adsorption and separation performance, and stability. The results demonstrate that urea-modified GO is uniformly dispersed within the ZIF-8 in a highly exfoliated state and enables the formation of a microporous-mesoporous hierarchical pore structure through synergistic interaction. At 273 K and 101 kPa, the composite achieves a CO 2 adsorption capacity of 2.36 mmol/g and a CO 2 /N 2 selectivity of 24.6, showing 40.5% and 62.9% enhancements compared with pristine ZIF-8. Due to the synergistic effect between urea-modified GO and ZIF-8, the composite exhibits notable improvements in thermal, adsorption-desorption cycling, and moisture stability. This work provides both experimental data and theoretical insights for the rational design of high-performance adsorbents tailored to practical flue gas CO 2 capture applications.
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高影响因子
Inorganics
·
2026
·Vol. 14
·期 2
·43
·
IF 3
Huili Ren,Chenxia Gao,Siqi Huang,Libo Du,Shuang Liu,Xi Cao,Yuguang Lv
The proliferation of antibiotic resistance urgently demands the development of novel non-antibiotic-dependent antimicrobial strategies. Metal–organic framework material ZIF-8, with its tunable structure and excellent biocompatibility, shows great promise in the field of photocatalytic antibacterial applications. However, pure ZIF-8 suffers from limitations such as a narrow light absorption range and high carrier recombination rates. Doping ZIF-8 with transition metals such as cobalt or copper, herein denoted as M-ZIF-8 (M=Co, Cu), can significantly broaden its photoresponsive spectrum, promote reactive oxygen species (ROS) generation, and enable controlled metal ion release, thereby enhancing antimicrobial performance. Nevertheless, the release of metal ions also introduces potential biotoxicity concerns, limiting practical applications. This paper systematically reviews the trade-off between the photocatalytic antibacterial mechanism and biotoxicity of metal-doped M-ZIF-8 (M=Co, Cu), focusing on material design principles, antibacterial pathways, toxicity manifestations and mechanisms, as well as optimization strategies for “enhancing efficacy while reducing toxicity.” It further proposes future research challenges and directions in mechanism elucidation, smart material development, standardization, and industrialization to advance the safe and efficient application of these materials in medical and environmental fields.
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JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Hui You,Xiang Xu,Wencan Luo,Lancai Long,Jun Du,Shunmin Yi,Wanyu Liu
The development of reverse osmosis membranes that simultaneously achieve high water permeability and excellent salt rejection is an urgent yet challenging goal for sustainable desalination. Two-dimensional (2D) nanofillers offer a promising pathway to break the inherent trade-off by creating fast water-transport channels. Herein, we engineered a high-performance thin-film nanocomposite (TFN) membrane by incorporating lamellar zeolitic imidazolate framework-8 nanosheets (ZIF-8 NSs) into the polyamide selective layer. The ZIF-8 NSs, synthesized via a facile surfactant-directed approach, possess an ultrathin thickness of ∼5.5 nm and a large lateral size of ∼0.75 μm. When embedded at an optimal loading, the TFN membrane demonstrates a remarkable water permeability of 9.83 L m −2 h −1 MPa −1 , which is ∼37% higher than the pristine thin-film composite (TFC) membrane, while maintaining a high Na 2 SO 4 rejection of 97.9%. This superior performance, significantly surpassing that of membranes filled with conventional ZIF-8 nanoparticles, is attributed to the synergistic effect of the molecular-sieving function of intrinsic ZIF-8 pores and the low-resistance nanochannels formed by the interlayer galleries between the well-dispersed nanosheets, which concurrently facilitate a more cross-linked polyamide network. This work provides a viable and scalable strategy for using 2D MOF nanosheets to design advanced separation membranes.
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Hui Jia,Bo Dong,Senpeng Zhang,Zhuojun Wang,Yulong Wang,Yankuan Li
Accurate detection of carbon dioxide (CO₂) is important in environmental monitoring and industrial process control. Optical fiber sensors have attracted considerable attention for CO₂ detection owing to their compact size, immunity to electromagnetic interference, and capability for remote sensing. However, achieving high sensitivity and adsorption affinity within practical CO₂ concentration ranges remains challenging. In this work, we propose a fiber interferometric CO₂ sensor based on a cascaded dual-sphere intermodal interferometer (IMI) functionalized with a ZIF-8/graphene oxide (GO) hybrid membrane. The dual-sphere interferometric structure enhances the interaction between cladding modes and the surrounding environment, while the ZIF-8/GO hybrid membrane provides a hierarchical adsorption–diffusion interface that improves CO₂ adsorption affinity and gas transport efficiency. Experimental results show that the sensor exhibits a high sensitivity of −286 pm/% CO₂ within the concentration range of 0.5–4.0%, together with excellent linearity (R² = 0.998), good repeatability, and negligible interference from temperature and humidity variations. Furthermore, the hierarchical micro-mesoporous architecture facilitates efficient gas diffusion, endowing the sensor with favorable response and recovery kinetics for continuous monitoring applications. These results indicate that the proposed sensing strategy provides an effective approach for high-performance optical fiber CO₂ sensing through the integration of an optimized interferometric structure and a hybrid MOF/2D sensing membrane.
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高影响因子
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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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
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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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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Ning Luo,Xiaqing Zhang,Lujia Zhu,Yuqing Yin,Jiarui Wu,Tong Li,Congcong Liu
ZZP-TENGs are designed for monitoring the HCHO concentration with high-pressure gas streams. • ZZP-TENG exhibited excellent sensing performance of HCHO. • ZZP-TENGs can be employed to construct an HCHO early warning system. • ZZP-TENG is applicable for detecting changes in indoor HCHO concentration. Formaldehyde (HCHO), a hazardous volatile organic compound, poses serious threats to human health in daily life and industrial environments. Herein, a pulse airflow-driven triboelectric nanogenerator (ZZP-TENG) with a ZIF-8/ZIF-67/copper foam composite microstructure was fabricated for high-sensitivity HCHO detection. Benefiting from micro/nano structural modification, the ZZP-TENG efficiently harvested ambient mechanical energy, yielding a short-circuit current of 3.62 μA and a maximum output power of 45.63 μW. Its stable energy output could drive 54 LEDs and charge various capacitors, demonstrating reliable energy-harvesting capacity. The sensor exhibited an 80% response toward HCHO at 40 ppm, along with a 30 s response time and an 80 s recovery time at 20 ppm. To verify practical indoor application feasibility, a simulated post-renovation HCHO release scenario was constructed with HCHO-containing wood blocks, supporting accurate indoor air quality assessment and environmental safety evaluation. In this study, an improved extreme learning machine (ELM) algorithm was employed to classify HCHO signals from the ZZP-TENG sensor. The ELM model realized 100% HCHO concentration recognition accuracy and constructed a three-level safety early warning system, achieving real-time intelligent indoor HCHO monitoring. This work realizes simultaneous airflow energy harvesting and HCHO detection, providing a novel route for integrated gas sensors and broadening the application of TENGs in self-powered indoor environmental monitoring. After the decoration of indoor residential and office spaces, formaldehyde (HCHO) is continuously released from building materials, furniture, and coatings, posing a serious threat to human health due to its chronic toxicity and carcinogenicity. When HCHO accumulates beyond the safe threshold, it causes eye irritation, respiratory inflammation, and long-term immune system disorders. In this study, a pulse airflow-driven triboelectric nanogenerator (ZZP-TENG) with a ZIF-8/ZIF-67/copper foam composite microstructure was fabricated for high-sensitivity HCHO detection. The self-powered device efficiently harvested ambient mechanical energy and delivered sufficient electrical output for continuous sensing. By integrating with a machine learning framework, the system achieved precise and graded evaluation of dynamic formaldehyde concentration throughout a six-week natural attenuation process. Furthermore, the integrated wireless alarm system enables real-time risk warning once pollutants exceed the safety threshold, realizing intelligent, long-term, and safe indoor air quality monitoring for residential and office environments. Download: Download high-res image (182KB) Download: Download full-size image
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高影响因子
MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 6
·384
·
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
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
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