Materials
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2025
·Vol. 18
·期 6
·1343
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IF 3.2
Hangmin Xu,Hao Song,Xiaozhi Wang,Xingwang Zhu
The substantial release of industrial carbon dioxide has been identified as a key factor in the development of various environmental issues. In addressing these concerns, the utilization of photocatalytic technology for carbon reduction has garnered significant attention. The disadvantage of CO2photoreduction is the problem of product yield and selectivity. It is known that MIL-125(Ti) with a high specific surface area (SBET) possesses more active sites using Ti as a node. The calcination of MIL-125(Ti) in a reducing atmosphere has been shown to introduce oxygen vacancies (OV), thereby enhancing the material’s surface and internal pores. This process has been demonstrated to result in a significant increase in the SBETand an enhancement of the Ti3+/Ti4+ratio. The increased Ti3+centers have been found to improve the material’s reducing properties. The results demonstrate that the OV-rich MIL-125-2H material exhibits the high-performance and highly selective photoreduction in CO2.
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ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2025
·
IF 6.1
Teng Wang,Lin Liu,Xiaodong Zhao,Penggang Pei,Qingsong Zhao,Shanshan Wei
A three-year microecological experiment was conducted using industrially polluted soil treated with varying concentrations of Cd(II) and agricultural films containing Phthalate esters (PAEs). A microecological cultivation experiment was conducted using soil samples collected from an industrially polluted area. Results showed that Co-exposure to Cd(II) and PAEs significantly altered the soil microbial community structure and diversity. The total PAEs content in the soil decreased in the presence of Cd(II), while the proportion of residual Cd(II) increased. The co-existence of Cd(II) and PAEs enhanced the mobility of both pollutants and increased the abundance of certain microbial taxa, such as Pseudomonadota and Acidobacteriota , while decreasing the abundance of Nocardioides , Sphingomonas , and Streptomyces . The enhanced bioavailability of Cd(II) and PAEs has a greater impact on the structure of fungal communities than on bacterial communities. The Mantel analysis results indicated that BBP content had the most significant influence on the bacterial and fungal communities. Co-occurrence network analysis revealed that combined exposure to Cd(II) and PAEs increased the complexity and stability of the microbial community network. The degradation pathway of Aminobenzoate was upregulated under co-exposure conditions, while Nitrotoluene and Steroid degradation pathways were significantly downregulated. The observed enrichment of Pseudomonadota and Acidobacteriota , coupled with the upregulation of the Aminobenzoate degradation pathway, suggests these taxa and metabolic functions may play crucial roles in the co-degradation of PAEs under Cd(II) stress. Furthermore, the increased network complexity and stability indicate a potential adaptive microbial response to combined pollution. These insights point towards the potential for harnessing these specific microbial consortia and functional pathways for the targeted bioremediation of co-contaminated sites.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaoyun Wang,Liping Luo,Dejian Chen,Rizhi Chen,Huiqin Zhang,Yangming Cheng,Xufeng Chen,Zhaoliang Cui
The low CO₂ removal efficiency of gas-blood exchange membranes posed a significant challenge of CO₂ retention in extracorporeal membrane oxygenation (ECMO). To address this, a novel strategy was pioneered through the integration of a Type III MOF-based porous liquid (UiO-66-PLs) with the biopolymer chitosan (CS) to fabricate a hemocompatible composite membrane, effectively overcoming the common issue of nanofiller agglomeration in traditional mixed-matrix membranes. A PDMS/PLs-CS mixed matrix composite membrane (MMCM) was successfully fabricated based on a PMP hollow fiber substrate. Experimental results demonstrated that the optimized CO₂/O₂ selectivity of the composite membrane reached 5.16, 2.0 times of the pristine PMP gas-blood exchange membrane. Simultaneously, the composite membrane exhibited excellent anti-blood cell adhesion and anti-protein adsorption properties (from 54.6 μg/cm 2 to 29.6 μg/cm 2 ). The material demonstrated no adverse effects on blood or tissue cells and maintained stable hydrophobicity and antifouling performance over 14 days. Crucially, blood circulation and rabbit model experiments confirmed that the composite membrane provides comparable oxygenation while delivering significantly superior CO₂ removal efficiency. This study presents the first demonstration of integrating Type III MOF-based porous liquids with biopolymers such as chitosan for fabricating hemocompatible composite membranes, offering a promising solution to enhance CO₂ clearance in ECMO applications.
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Molecular Catalysis
·
2024
·
IF 3.9
Pinfang Yan,Xinyu Li,Jilei Wang,Jiahang Pan,Hu Xu,Yinhua Zhu,Qiaoling Chen,Hua Mei,Yan Xu
The design of efficient and low-price photocatalysts is an effective way to relieve excessive carbon dioxide emissions and energy dilemma. Polyoxometalates are ideal materials due to their adjustable structures and semiconductor-like properties. Limited by their light absorption capacity, it is a feasible way to construct inorganic-organic composite polyoxometalate-based photocatalysts. Here, two efficient Anderson-type polyoxometalate-based photocatalysts, (C 10 H 9 N 2 )·{[Co(H 2 O) 2 ]·[H 6 CrMo 6 O 24 ]}·4H 2 O ( 1 ), {[Co(H 2 O) 3 ]·[Co(DAPSC)] 2 ·[H 6 CrMo 6 O 24 ] 2 }·11H 2 O ( 2 ) [2,6-diacetylpyridine bis(semicarbazone), abbr. DAPSC], were prepared by hydrothermal synthesis method. The structural analysis indicates that compounds 1 and 2 share similarities: {CrMo 6 } units were linked by cobalt ions to form two-dimensional (2D) frameworks. The addition of Co ions provided catalytic active center for the catalyst, compounds 1 and 2 exhibited promising yield into CO, as high as 3061.6 μ mol g −1 ·h −1 and 9309.8 μ mol g −1 ·h −1 , respectively. Due to their excellent properties, Anderson-type POMs can be used as the basic units of photocatalysts. At the same time, four cycling tests prove the stability of compound 2 under a long reaction time.
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Asian Journal of Pharmaceutical Sciences
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2024
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IF 10.7
Mengying Cheng,Tianxiang Yue,Hong Wang,Lai Jiang,Qiaoling Huang,Fanzhu Li
Atherosclerosis (AS) is a progressive inflammatory disease, and thrombosis most probably leads to cardiovascular morbidity and mortality globally. Thrombolytic drugs alone cannot completely prevent thrombotic events, and treatments targeting thrombosis also need to regulate the inflammatory process. Based on the pathological process of AS dynamic development, biomimetic thrombus-targeted nanoparticles HMTL@PM were prepared. Hirudin and lumbrukinase, the effective substances of traditional Chinese medicine, were self-assembled under the action of tannic acid and Mn 2+ . HMTL@PM dissociated in the weakly acidic microenvironment of atherosclerosis and exhibited an excellent therapeutic effect of alleviating inflammation, dissolving thrombus, anticoagulation, and promoting cholesterol efflux. HMTL@PM effectively regulated the progression of AS and provided a new perspective for the development of drug delivery systems for AS therapy, which owned important research significance for reducing the mortality of cardiovascular and cerebrovascular diseases.
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APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Qingwen Zheng,Zhuo Ma,Yunfeng Qiu,Zheng Zhang,Ruiwen Wang,Shaoqin Liu
Enhancing the performance of microbial fuel cells (MFCs) for sustainable energy generation requires innovative anode designs that facilitate efficient extracellular electron transfer (EET). This study presents a biomimetic approach to anode fabrication, developing a hierarchical Co-N x doped carbon nanotube/reduced graphene oxide (ZnCo/rGO@CC) composite inspired by the EET mechanisms of c-type cytochromes. The composite leverages the synergistic effects of Co-N x active sites, mimicking heme groups, and a three-dimensional porous structure to promote bacterial colonization and electron transfer. MFCs equipped with the ZnCo/rGO@CC anode achieved a maximum power density of 3.27 W/m 2 and a startup time of 1.68 days, significantly outperforming traditional carbon cloth anodes (1.49 W/m 2 and 2.50 days, respectively). Further demonstrating its potential for sustainable waste valorization, the MFC system was successfully operated using sugarcane bagasse as a fuel source, exhibiting a power density of 1.58 W/m 2 . Electrochemical analyses and microbial community characterization confirmed enhanced EET kinetics, selective enrichment of Geobacter (79.73 %), and robust biofilm formation on the ZnCo/rGO@CC anode. This biomimetic anode design, coupled with the utilization of sugarcane bagasse, offers a promising strategy for developing sustainable and efficient bioelectrochemical systems for cleaner energy production.
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MEASUREMENT
·
2025
·
IF 5.6
Quanfu Li,Manli Sun,Fuqian Li,Zhencheng Chen,Xudong Luo
High sensitivity and fast response ammonia gas sensors have wide applications in chemical production, food safety, medical diagnosis, and other fields. This work innovatively utilizes phosphorus and nitrogen as co-doping elements to significantly enhance the ammonia sensing performance of graphene. Ammonia sensing tests have shown that phosphorus-nitrogen co-doped graphene (PNG) exhibits excellent ammonia sensing performance at room temperature: high response (up to 4.34% response to 0.5 ppm ammonia, more than 5 times that of graphene), ultra-low detection limit (33.9 ppb), fast response/recovery (response time ( T r e s ) and recovery time ( T r e c ) are 19 s and 36 s, respectively, which are more than 90% shorter than graphene on average). In addition, the PNG ammonia sensor also has excellent selectivity and good long-term stability. The PNG ammonia sensor studied in this paper has great potential in practical applications, especially in the detection of low concentration ammonia in exhaled breath analysis for medical diagnostics. It is expected to provide a reliable and low-cost solution for various applications of graphene ammonia sensors.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Shihong Zhu,Daohang Du,Shuli Yu,Ting Tao,Xianfeng Chu,Yunhua Jiang,Jia Yang,Jiefu Li,Zhifei Wang
Chemiluminescent immunoassays utilizing magnetic nanoparticles exhibit critical importance in in vitro diagnostics, attributed to their remarkable superparamagnetic properties, high specificity, and uniform monodispersity. Current surface functionalization strategies for antibody conjugation predominantly rely on carboxyl or amino groups, requiring pre-activation steps for both amino- and carboxyl-modified nanoparticles prior to antibody labeling. However, the complex activation protocols and persistent challenges in developing efficient chemiluminescent detection methods highlight significant technical obstacles. To address these limitations, we developed vinyl sulfone-functionalized magnetic beads (VSF-GMP), enabling rapid antibody conjugation via specific reactions between vinyl sulfone groups and lysine residues exposed on the surface of creatine kinase MB isoenzyme antibodies (CK-MB). This approach facilitates highly efficient chemiluminescent immunoassays. The engineered VSF-GMP magnetic beads demonstrated molecular weight-dependent adsorption profiles, achieving maximal binding capacity (86.32 μg/mg) for mouse IgG (150 kDa) compared to β-lactoglobulin (18.2 kDa) and bovine serum albumin (66.4 kDa). Moreover, compared with the protein coupling method using EDC/NHS-activated carboxylated magnetic beads, our VSF-GMP beads exhibited superior coupling efficiency. Additionally, bis-functionalized poly(ethylene glycol) (NH 2 -PEG-NH 2 ) was employed as a blocking agent to optimize the reactivity and stability of antibody conjugation, reducing non-specific protein labeling on the magnetic beads by 97.8 %. The analytical performance of the proposed chemiluminescent immunoassay (CLIA) was rigorously evaluated. Finally, the practical utility of VSF-GMP magnetic beads for CK-MB determination in plasma samples was investigated. These engineered magnetic beads showcase exceptional analytical sensitivity, specificity, and operational simplicity, establishing a robust platform for advanced chemiluminescent diagnostics with enhanced throughput capabilities.
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JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Xin Liu,Qing Wang,Zhuanxia Zhang,Liangchun Jia,Zhenxing Shen,Tengwen Long,George Zheng Chen,Jun He,Xin Song
The co-mingled plumes of chloroethenes and per- and polyfluoroalkyl substances (PFASs) raise a major challenge for groundwater remediation. This study is the first try to apply sulfidated nano zero-valent iron supported on calcined layered double oxides (S-nZVI@LDO) for simultaneous removal of trichloroethylene (TCE) and perfluorooctanoic acid (PFOA). Our findings revealed that 2 g/L S-nZVI@LDO simultaneously removed 73.3 % TCE and 37.8 % PFOA in pure water, with 49.5 % TCE degraded to less chlorinated products and 23.8 % adsorbed or unquantified transformation of C 3 –C 6 hydrocarbons. Comparative experiments using individual and co-occurring TCE and PFOA revealed that co-existing PFOA and TCE minimally affected their respective removal efficiencies, highlighting S-nZVI@LDO’s suitability for co-contaminant remediation. Furthermore, S-nZVI@LDO achieved optimal TCE and PFOA removal under acidic conditions, surpassing non-composite S-nZVI and LDO. Based on the characterization of S-nZVI@LDO, TCE removal involved reductive dechlorination and sorption via hydrophobic interactions, while PFOA removal was primarily driven by electrostatic interactions and hydrogen bonding. In real groundwater, S-nZVI@LDO achieved 58.2 % TCE and 33.7 % PFOA removal. Additionally, S-nZVI@LDO simultaneously removed nine different PFASs from a 12-PFASs mixture and demonstrated greater effectiveness for long-chain PFASs and their alternatives (e.g., GenX) owing to their hydrophobic nature. These findings highlight the potential of S-nZVI@LDO as an effective material for TCE-PFOA co-contaminated groundwater.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Tao Zhang,Xiaojuan Wang,Jie Gu,James M. Tiedje
Selective P O bond cleavage in organophosphorus pollutants under acidic conditions represents a key challenge in phosphatase-mimicking nanozyme design. Inspired by natural phosphatases, we designed and synthesized Zr x Co y -ZIF nanozymes featuring a Zr-N 4 coordination framework, achieving alkaline-free detoxification (t 1 / 2 =0.3 min, detoxification efficiency > 99 %). Theoretical analyses reveal that the oxygen-bridged proton shuttle activates interfacial water to supply protons for P O bond cleavage, while the Zr-Co electron transfer system reduces polarization energy barriers, enabling dual-site synergistic catalysis. Additionally, its magnetism facilitates material recovery, ensuring environmental friendliness. Notably, Zr x Co y -ZIF efficiently cleaves phosphodiester bonds and disrupts biofilms, removing > 90 % both Gram-positive and Gram-negative bacteria, with excellent antibacterial effects in real samples (lettuce, chicken, milk; removal rate > 85 %), demonstrating potential as a novel high-efficiency antimicrobial agent.
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INORGANIC CHEMISTRY
·
2024
·
IF 4.3
Guoying Yang,Yijin Song,Songde Han,Zhen-Zhen Xue,De-Xuan Liu,Ani Wang,Guoming Wang
Assembling a heterostructure is an effective strategy for enhancing the electrocatalytic activity of hybrid materials. Herein, CoFe-layered double hydroxide and Co-metal–organic framework (CoFe-LDH/Co-MOF) hollow heterostructure nanorod arrays are synthesized. First, [Co(DIPL)(H3BTC)(H2O)2]n [named as Co-MOF, DIPL = 2,6-di(pyrid-4-yl)-4-phenylpyridine, H3BTC = 1,3,5-benzenetricarboxylic acid] crystalline materials with a uniform hollow structure were prepared on the nickel foam. The CoFe-LDH/Co-MOF composite perfectly inherits the original hollow nanorod array morphology after the subsequent electrodeposition process. Optimized CoFe-LDH/Co-MOF hollow heterostructure nanorod arrays display excellent performance in oxygen evolution reaction (OER) with ultralow overpotentials of 215 mV to deliver current densities of 10 mA cm–2 and maintain the electrocatalytic activity for a duration as long as 220 h, ranking it one of the non-noble metal-based electrocatalysts for OER. Density functional theory calculations validate the reduction in free energy for the rate-determining step by the synergistic effect of Co-MOF and CoFe-LDH, with the increased charge density and noticeable electron transfer at the Co–O site, which highlights the capability of Co-MOF to finely adjust the electronic structure and facilitate the creation of active sites. This work establishes an experimental and theoretical basis for promoting efficient water splitting through the design of heterostructures in catalysts.
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Catalysts
·
2024
·Vol. 14
·期 2
·133
·
IF 3.8
Yang Yue,Qu Wu,Chaofan Zheng,Yongjun Sun,Kinjal J. Shah
Red mud was modified by impregnation with Co element loading. The Co-RM catalyst was characterized using scanning electron microscopy (SEM), X-ray powder diffraction (XRD), X-ray fluorescence (XRF), and UV full-band scanning. The results showed that the modified Co-RM catalyst successfully loaded the Co element and formed an irregular pore structure on the surface, thereby increasing the number of active sites of the red mud catalyst and effectively improving the degradation efficiency of tetracycline. Under the optimal conditions of a catalyst dosage of 0.3 g/L, a persulfate dosage of 3 g/L, a reaction temperature of 50 °C, and a pH value of 7, a removal rate of 50 mg/L of tetracycline can be achieved: 89.5% after 90 min. The effects of common anions and humic acids in water, as well as radical quenchers (anhydrous ethanol and tert-butanol), on the degradation of tetracycline were investigated. The results showed that Cl−, CO32−, HCO3−, H2PO4−, NO32−, HPO42−, and humic acids showed inhibitory effects on the degradation of tetracycline, while SO42−showed a promoting effect on the degradation of tetracycline. The free radical quenching experiment showed that the most important free radicals that can degrade tetracycline in the system are sulfate radicals.
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