CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 13.2
Chang Liu,Xing Luo,Xiaowei An,Fengfeng Gao,Xueli Huang,Xueying Wang,Qinglong Luo
ZIF-8-derived carbon materials possess great advantages in the field of electrochemical adsorption due to their abundant porous structures, excellent specific surface areas, and good electrical conductivity. The efficient separation and capture of bromide ions (Br − ) from brine systems represent a critical pathway to achieving high-efficiency utilization of brine resources and environmental protection. In this study, a nitrogen (N)-doped ZIF-8-derived carbon material (NC-800) was synthesized via high-temperature calcination at 800 °C, and its performance in separating and capturing Br − from brine was systematically investigated. Electrochemical test results showed that the NC-800 membrane electrode achieved a maximum intercalation capacity of 115.65 mg·g −1 for Br − at an oxidation voltage of 1.0 V . Moreover, the captured Br − could be successfully converted into elemental bromine (Br₂) through carbon tetrachloride (CCl₄) extraction, realizing the resource recovery of Br − . Cyclic stability tests indicated that after 10 adsorption-desorption cycles, the maximum intercalation capacity of the electrode remained at 57 mg·g −1 , demonstrating excellent cyclic reusability. Systematic characterizations were conducted to analyze the microstructure of NC-800 and the adsorption mechanism of Br − . Combined with electrochemical performance analysis, the effects of different operating conditions on Br − adsorption performance were examined. Density functional theory (DFT) was employed to verify the adsorption mechanism of Br − on NC-800, and the results confirmed that nitrogen doping significantly enhances the Br − adsorption capacity of porous carbon materials. This study deepens the understanding of the “physical-chemical synergistic adsorption mechanism” during Br − separation by the NC-800 material, offering new insights for the development of sustainable bromine resource recovery technologies.
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.1
Jiayan Xu,Hanlu Wang,Chenyi Yuan,Qiuyue Fu,Sizeng Bao,Guicai Fan,Lingling Bao,Chenjie Gu,Tao Jiang,Xueyan Bian
Surface-enhanced Raman scattering (SERS) has emerged as a powerful analytical technique for the sensitive point-of-care detection of anti-phospholipase A2 receptor antibodies (anti-PLA2R-Abs), a primary biomarker for membranous nephropathy (MN). However, conventional SERS substrates lack the integrated sample enrichment capability and flexible format required for efficient and convenient clinical analysis. To address this limitation, we hypothesized that an immersion-type flexible SERS medium based on conventional cotton swab could be developed for ultra-sensitive on-site detection of anti-PLA2R-Abs. Through a precisely controlled in-situ synthesis and a following ion sputtering, we engineered a ZIF-67/Ag nanocomposite on the nanofiber structure of a cotton swab, which combined molecular enrichment capability with dual signal enhancement mechanisms. The fibrous architecture of the cotton swab enabled highly efficient anchoring of biomarker-containing liquid samples, offering a significant advantage over silicon wafers. A substrate was yielded to exhibit not only outstanding SERS activity with an enhancement factor (EF) of 3.51 × 10 8 but also excellent uniformity and reproducibility. Using this structure, a quantitative assay of anti-PLA2R-Abs was facilitated across five orders of magnitude (1 × 10 −4 to 1 × 10 −9 mg/mL), achieving a limit of detection (LOD) as low as 0.185 ng/mL. Moreover, its diagnostic efficacy was further validated in clinical samples. This work presents a clinically viable point-of-care diagnostic platform that simplifies sample processing while significantly enhancing detection sensitivity for nephrology applications, thereby contributing to the advancement of point-of-care diagnostics.
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JOURNAL OF MATERIALS SCIENCE
·
2026
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IF 3.9
Ma Kuanjie,Li Nana,Lu Guochao,Zhang Lianwei,Hu Zhiwei,Liu Wenjing,Cai Yurong
To address the need for rapid desorption in protein adsorption applications, we developed and characterized magnetic core–shell nanoparticles composed of a zeolite imidazolate framework-8 (ZIF-8) coating on magnetite (Fe 3 O 4 ) cores (Fe 3 O 4 @ZIF-8). This nanostructure integrates the pH-sensitive properties of ZIF-8 with the magnetic responsiveness of Fe 3 O 4 , enabling rapid separation within one minute via an external magnetic field. In the synthesis of Fe 3 O 4 @ZIF-8, the particle size of the ZIF-8 shell was found to increase concurrently with the molar ratio of zinc nitrate hexahydrate to 2-methylimidazole. The resulting shells were uniformly distributed on the surface of the Fe 3 O 4 cores. Furthermore, a positive correlation was observed between the ZIF-8 particle size and the adsorption capacity for histidine-rich proteins. In adsorption experiments using bovine hemoglobin (BHB) as a model protein, Fe 3 O 4 @ZIF-8 achieved an adsorption capacity of 1013.5 mg/g within 3 min, representing 87% of its maximum adsorption potential. Saturation adsorption, with a capacity of 1164.3 mg/g, was reached within 8 min. Importantly, the pH-responsive nature of the ZIF-8 component facilitated highly efficient desorption. A high release efficiency of 90% was achieved in just 1 min using a phosphate buffer at pH 5.2. This dual pH- and magnetic-responsive system demonstrates significant potential for applications requiring fast and controllable protein adsorption and desorption, positioning it as an ideal tool for targeted protein recovery in various biochemical and industrial processes.
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Journal of Energy Storage
·
2026
·
IF 9.8
Hu Wang,Shala Yang,Pengfei Pang,Jiangchao Chen,Yongbo Yan,Mingjie Liao,Dazhi Pang,Zheqi Zhang,Yunyun Zhao,Wenping Liu,Huarui Xu,Guisheng Zhu,Kunpeng Jiang
Poor interfacial stability and dendrite penetration at the lithium metal anode interface are critical bottlenecks hindering the practical application of garnet-type solid electrolytes, despite their high intrinsic ionic conductivity. Herein, we resolve this long-standing trade-off by designing a hierarchical sandwich heterostructure. This architecture comprises a dense Li 6.4 Ga 0.2 La 3 Zr 2 O 12 (C-LGLZO) ceramic scaffold sandwiched between two ZIF-8@SiO 2 /PVDF-HFP (ZSPH) composite interfacial layers. The resulting composite solid electrolyte (CSE) C-LGLZO/ZSPH exhibits exceptional electrochemical properties: a high Li + transference number (t Li+ = 0.77) and an outstanding ionic conductivity of 1.31 × 10 −3 S cm −1 at 30 °C. Mechanistically, while the robust central C-LGLZO scaffold provides a continuous Li + pathway and physically blocks dendrites, the honeycomb-like porous ZSPH interfacial layers homogenize the interfacial electric field and promote a stable solid electrolyte interphase (SEI). This synergistic design endows the CSE with a wide electrochemical stability window (4.8 V vs. Li/Li + ) and enables stable Li plating/stripping for over 1000 h. Furthermore, cells using a LiFePO 4 cathode retain 76.3 % of their capacity after 500 cycles at 0.5C, demonstrating exceptional high-rate cycling stability. This work offers a versatile architectural strategy for engineering robust solid-state batteries (SSBs).
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Qiuyu Wang,Maoyuan Hu,Wanke Zhou,Junchun Guo,Sheng Li,Xiaoli Xiong,Jinglin Li
ZIF-derived N,P,S-HCNFs provide a porous electroactive interface for TBHQ sensing. • Single- and dual-doped controls with DFT support cooperative heteroatom regulation. • Two linear ranges of 0.9–12 and 12–127 μM were achieved with a 0.075 μM LOD. • Reliable TBHQ quantification was demonstrated in spiked edible-oil samples. • Extra Trees enables validated auxiliary calibration in complex oil matrices. Tert-butylhydroquinone (TBHQ) is a widely used synthetic phenolic antioxidant, and its excessive use in edible oils raises food-safety concerns. Herein, N, P, and S tri-doped hollow carbon nanofibers (N,P,S-HCNF) with interconnected porous channels were fabricated via an electrospinning–pyrolysis strategy. The hollow architecture and heteroatom-induced defects provide abundant electroactive sites and facilitate electron/mass transfer, enabling sensitive electrochemical oxidation of TBHQ. The N,P,S-HCNF/CP sensor exhibited two linear response ranges of 0.9–12 μM and 12–127 μM, with a detection limit of 0.075 μM. Acceptable selectivity, reproducibility, and storage stability were obtained. Single- and dual-doped controls combined with DFT calculations provided mechanistic insight into the enhanced TBHQ adsorption and interfacial electron transfer of N,P,S-HCNF, including preferential interactions involving the phenolic hydroxyl groups. An externally validated Extra Trees calibration model was further employed as an auxiliary strategy to reduce matrix-related prediction bias, integrating hollow carbon nanofiber engineering, multielement heteroatom regulation, mechanistic analysis, and data-driven quantification for TBHQ electrochemical determination in edible oils. A defect-rich N,P,S-doped hollow carbon nanofiber interface enabled sensitive electrochemical oxidation of TBHQ, while DFT supported favorable adsorption and interfacial charge redistribution and machine learning provided auxiliary calibration for improved quantification in edible-oil matrices. Download: Download high-res image (128KB) Download: Download full-size image
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高影响因子
ACS Applied Polymer Materials
·
2026
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IF 5.2
Yijing Jia,Huili Liu,Wentao Jiang,Dongyu Bai
Metal–organic frameworks (MOFs) have emerged as promising iodine adsorbents for nuclear safety, yet the poor processability and recyclability of MOF powders severely limit their practical applications. Immobilizing MOFs onto green porous substrates offers an effective strategy to address these challenges while preserving their intrinsic porous structure and adsorption performance. This work employed biodegradable polylactide (PLA) aerogels with a vertically oriented pore structure (fabricated by directional freeze-drying technique) as the supports for the in situ growth and immobilization of ZIF-71 particles, successfully fabricating green ZIF-71@PLA composite aerogels. The ZIF-71 loadings on PLA aerogels could be effectively tailored by regulating the in situ growth time. The results revealed that the ZIF-71@PLA composite aerogels could well preserve the vertically oriented pore structures, therefore imparting excellent mechanical strength (up to 464.42 kPa) and outstanding iodine adsorption performance (maximum adsorption capacity of 320.02 mg/g at 50 °C) to ZIF-71@PLA aerogels. Additionally, the aerogels exhibited remarkable iodine adsorption stability and superior adsorption selectivity toward iodine, and the underlying adsorption mechanism was systematically investigated. This study provided a sustainable and green strategy for developing efficient, eco-friendly iodine adsorbent materials for nuclear safety applications.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Ying Miao,Zhen Hong,Zuozhu Yin,Yidan Luo,Chan Xie,Mingshan Xue
Synergistic coating design combining ZIF-8 and PDMS on a porous PI substrate. • Integrated multifunctionality enabling oil-water separation, photocatalytic degradation, and anti-bioadhesion. • Exceptional separation performance with a water contact angle of 162.8° for various oil-water mixtures. • Outstanding environmental durability demonstrated against mechanical abrasion, UV aging, and acid/alkali corrosion. The treatment of wastewater containing oils and organic pollutants remains a critical environmental challenge. Traditional separation membranes often lack the multifunctionality needed for simultaneous separation, degradation, and antifouling. In this study, a robust superhydrophobic composite membrane was fabricated via a facile solution-impregnation method, in which zeolitic imidazolate framework-8 (ZIF-8) nanoparticles were integrated with polydimethylsiloxane (PDMS) onto a porous polyimide (PI) substrate. The designed coating synergistically combines the micro-/nano-scale roughness of ZIF-8 with the low surface energy of PDMS, endowing the membrane with a water contact angle of 162.8 ± 0.3° and a sliding angle of 3.0 ± 0.4°. The composite membrane demonstrates high-efficiency separation of various oil-water mixtures (>95% efficiency, flux >9000 L·m −2 ·h −1 ), effective photocatalytic degradation of methylene blue (MB) under ultraviolet (UV) light (93.7% within 2.5 h), and excellent anti-bioadhesion performance against Chlorella vulgaris. Moreover, the membrane retains its superhydrophobicity after mechanical abrasion, tape peeling, UV aging, and exposure to acidic/alkaline environments, confirming outstanding durability. This work presents a scalable strategy for developing multifunctional PI-based membranes with integrated separation, catalytic, and antifouling properties, showing promising potential for practical water remediation applications. Download: Download high-res image (268KB) Download: Download full-size image
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Peng Shan,Hong Wang,Zhihang Xu,Yilin Wang,Chenglong Fu,Jinwen Hu,Yehan Tao,Xiaodong Xia,Jian Du,Haisong Wang
An adsorption-triggered mechanism was proposed for on-demand release. • Acidic sites on ZSM-5/ZIF-8 possess stronger adsorption energy for biogenic amines than CA. • The mechanical and gas barrier of film were improved after introducing ZSM-5/ZIF-8. • The developed packaging effectively prolonged fish preservation at 4 °C. Active packaging with on-demand release capability has attracted increasing interest in food preservation; however, the delayed response of active agents often compromises protection during the early stage of spoilage. In this work, an adsorption-triggered release strategy was proposed by incorporating cinnamaldehyde (CA)-loaded ZSM-5/ZIF-8 nanoparticles (CA@ZSM-5/ZIF-8) into a sodium alginate (SA) matrix. Owing to the strong affinity of biogenic amines toward the adsorption sites of ZSM-5/ZIF-8, low concentrations of histamine could competitively displace the preloaded CA, thereby enabling an early and responsive release behavior. In the absence of histamine, the cumulative release of CA from the composite film remained below 10% within 12 h, whereas it increased to approximately 60% in the presence of 5.0 mM histamine. Meanwhile, the optimized film exhibited improved tensile strength (54.6 MPa), water vapor barrier performance (0.86 × 10 −10 g·m·m −2 ·s −1 ·atm −1 ), UV-shielding capability, and water resistance. The film also showed pronounced antioxidant activity (91.4%), sustained antibacterial effects against E. coli and S. aureus , and favorable biodegradability. When applied to fish preservation, the optimized film effectively extended the refrigerated shelf life to 6 days at 4 °C. This study provides a novel paradigm for on-demand release in intelligent food packaging.
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Polymers
·
2026
·Vol. 18
·期 14
·1699
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IF 5.8
Yangjie Huang,Haixia Wang,Yiyuan Zhang,Yuhang Liu
Natural antioxidants are limited in food packaging due to poor stability and compatibility. A multifunctional film was successfully prepared via the incorporation of functional fillers into a guar gum/polyvinyl alcohol (GP) matrix. ZIF-8 was amino-functionalized to enhance rutin (Rt) loading, and the resulting ZIF-8-NH2@Rt was combined with purple sweet potato anthocyanins (PSPA) to fabricate a composite film for pork freshness monitoring. Compared with neat GP, the ZIF-8-NH2@Rt/PSPA/GP film showed a 30.6% increase in tensile strength and an elongation at break of 36.6%. The composite film also imparted exceptional UV-blocking capabilities, with light transmittance plummeting to 3.22% in the UVA region, 0.40% in the UVB region, and 47.53% within the visible light spectrum. The films displayed significant antioxidant properties, with DPPH and ABTS scavenging activities recorded at 73.27% and 67.64%, respectively. During pork storage, the film exhibited stable color changes. The G/R values corresponding to the limit of edibility were determined to be 0.78 and 0.67 for storage at 25 °C and 4 °C, respectively. The film was reusable for four cycles and extended the shelf life of pork by at least one day. These findings highlight the film’s considerable promise in the realm of smart food packaging and dynamic freshness tracing.
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PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2026
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IF 5.2
Yue Zhang,Dan Zhou,Bingjian Ai,Lin Zhao,Shujing Lin,Zhihong Shi,Hongyi Zhang
Yolk-shell magnetic ZIF-8@MOF-74 was synthesized via a facile method at room temperature. • Yolk-shell magnetic ZIF-8@MOF-74 based MSPE was optimized. • High specific surface area and hierarchical pores enhance MSPE performance. • MSPE-HPLC method developed for efficient BUs detection in fresh juices. • Greenness verified by ComplexGAPI index, aligning with green chemistry principles. Yolk-shell magnetic ZIF-8@MOF-74 was synthesized and utilized as a magnetic solid-phase extraction (MSPE) adsorbent for the detection of benzoylurea insecticides (BUs) residues in freshly-squeezed fruit and vegetable juices. The fabrication of magnetic ZIF-8@MOF-74 was conducted under mild and simple conditions without high-temperature/pressure or energy-intensive equipment. With a large specific surface area (880.78 m 2 g −1 ) providing abundant adsorption sites, the mesoporous architecture (average pore size 2.57 nm) and yolk-shell structure of magnetic ZIF-8@MOF-74 enable efficient mass transfer, achieving equilibrium within 7 min as an MSPE adsorbent for BUs. The established analytical method demonstrates good linearity in the concentration range of 0.5–200 μg L −1 , with low limit of detection (LOD) between 0.1 and 0.3 μg L −1 . The recoveries of BUs in freshly-squeezed pear juice and tomato juice samples were in the range of 81%–114% and 102%–120%, respectively. Evaluation via the ComplexGAPI index confirms its environmental sustainability. Download: Download high-res image (118KB) Download: Download full-size image
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高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Mantang Chen,Libin Wan,Shuhan Yu,Li Chen,Jingjing Yu,Xiaoyu Wang,Cong Nie,Fuwei Xie,Wenfen Zhang
Simple and convenient synthesis of a purification material of CZIFA. • Enhanced purification performance of CZIFA by acid treatment strategy. • Analysis and detection of pesticide residues in complex matrices. • Expanded application of ZIF-derived carbon materials in food safety detection. Porous carbon-based QuEChERS purification material (CZIFA) was synthesized through a straightforward calcination and acid treatment process using Zeolitic Imidazolate Framework-67 (ZIF-67) as the precursor. The abundant adsorption sites and excellent clean-up capability of CZIFA resulting from acid treatment were confirmed through a series of characterization and performance evaluations. Combined with LC-MS/MS, a modified QuEChERS method using CZIFA as the adsorbent was developed for the simultaneous detection of 48 pesticide residues in tobacco. Under optimized conditions, the established method achieved low limits of detection (0.02–9.92 μg/kg), wide linear ranges (2–200 μg/L), and satisfactory precision. The average recoveries of the method were in the range of 80.1–119.7% with the relative standard deviations (RSDs) of <9.5%. This study provides a novel and efficient functionalized material for analyzing pesticide residues in complex matrices. Especially, it expands the application of ZIF-derived carbon materials in food safety detection. Download: Download high-res image (298KB) Download: Download full-size image
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PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Yanjun Ye,Wenqi Feng,Hui Wang,Honghui Jiang,Juan Liu,Tongxiang Liang
Renewable-electricity-driven CO₂-to-CO electroreduction is a promising approach for sustainable carbon utilization, yet efficient CO production requires precise control of interfacial adsorption, proton-coupled electron transfer, and competing hydrogen evolution. Isolated metal centers are often constrained by linear scaling relationships, hindering the simultaneous optimization of CO₂ activation, *COOH formation, and suppression of the hydrogen evolution reaction. Herein, we report an N-doped carbon catalyst derived from zeolitic imidazolate framework-8, containing neighboring Cu/Ni sites that cooperatively regulate the CO₂-to-CO pathway. Aberration-corrected high-angle annular dark-field scanning transmission electron microscopy reveals atomically dispersed metal features and neighboring bright-spot configurations with a projected-separation distribution centered at approximately 2.35 Å, while localized electron energy-loss spectroscopy supports Cu/Ni coexistence within representative neighboring regions. The optimized catalyst achieves a CO Faradaic efficiency of approximately 99% at −0.70 V versus the reversible hydrogen electrode, with a corresponding CO partial current density of 31.78 mA cm⁻², and maintains stable operation for 52.3 h. Post-reaction scanning transmission electron microscopy and X-ray photoelectron spectroscopy further indicate that the atomically dispersed metal features and metal–N coordination environments are largely preserved after long-term electrolysis. Density functional theory calculations based on a representative adjacent Cu/Ni–Nₓ model show that the free-energy change for the potential-determining *COOH formation at the Ni-centered site is 1.08 eV. Electronic-structure analyses further suggest that neighboring Cu modulates the local electronic environment of Ni, contributing to site-differentiated interfacial reactivity. This work establishes a link between neighboring Cu/Ni sites, interfacial electronic modulation, and CO₂-to-CO performance, providing an interface-engineering strategy for selective CO₂ electroreduction. Download: Download high-res image (156KB) Download: Download full-size image
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