Elsevier最新文献_第4页

Chiral plasmonic Cu_2-xS quantum dots enable chirality-dependent fluorescent recognition of tryptophan enantiomers. 手性等离子体Cu2-xS量子点使色氨酸对映体的手性依赖荧光识别。

IF 6.7 1区化学

Talanta Pub Date : 2027-01-01 Epub Date: 2026-07-14 DOI: 10.1016/j.talanta.2026.130307

Meihan Guo, Ruiju Yang, Chenlei Gu, Lu Liu, Jian Wang, Shu Jun Zhen, Hong Yan Zou, Cheng Zhi Huang

{"title":"Chiral plasmonic Cu2-xS quantum dots enable chirality-dependent fluorescent recognition of tryptophan enantiomers.","authors":"Meihan Guo, Ruiju Yang, Chenlei Gu, Lu Liu, Jian Wang, Shu Jun Zhen, Hong Yan Zou, Cheng Zhi Huang","doi":"10.1016/j.talanta.2026.130307","DOIUrl":"10.1016/j.talanta.2026.130307","url":null,"abstract":"The accurate discrimination and quantification of chiral amino acids enantiomers have remained significant challenges in both chemistry and biology. In this study, we employed an etching method to synthesize two types of chiral plasmonic fluorescent Cu2-xS quantum dots for efficient enantioselective L/D-tryptophan (Trp) enantiomers. Specifically, homochiral interactions between the Cu2-xS and Trp enantiomers led to fluorescence enhancement, which could be attributed to the aggregation-induced emission (AIE) effect. In contrast, heterochiral interaction led to negligible fluorescence change. Leveraging these fluorescence variations, sensitive discrimination and detection of Trp enantiomers using L-Cu2-xS with a limit of detection (LOD) of 0.3 μM for L-Trp, where the enantioselective fluorescence enhancement ratio reached up to 447. And the LOD was 0.1 μM for D-Trp using D-Cu2-xS, where the enantioselective fluorescence enhancement ratio was 11.8. This research not only provides an effective strategy for the preparation of chiral plasmonic materials with strong emission properties but also offers a simple yet sensitive method for chiral recognition, thereby opening up new perspectives and opportunities in related research fields.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"311 ","pages":"130307"},"PeriodicalIF":6.7,"publicationDate":"2027-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148443626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-function antifouling/sterilization electrically neutral hydrogel mediated bipolar autoluminescencet coreactant-free electrochemiluminescent biosensor. 双功能防污/杀菌电中性水凝胶介导双极自发光无反应物电化学发光生物传感器。

IF 6.7 1区化学

Talanta Pub Date : 2027-01-01 Epub Date: 2026-07-14 DOI: 10.1016/j.talanta.2026.130301

Luting Yan, Lei Tian, Zekun Ren, Chao Wang, Xia Sun, Yemin Guo, Maja Milojević-Rakić, Yanyan Zhang

{"title":"Dual-function antifouling/sterilization electrically neutral hydrogel mediated bipolar autoluminescencet coreactant-free electrochemiluminescent biosensor.","authors":"Luting Yan, Lei Tian, Zekun Ren, Chao Wang, Xia Sun, Yemin Guo, Maja Milojević-Rakić, Yanyan Zhang","doi":"10.1016/j.talanta.2026.130301","DOIUrl":"10.1016/j.talanta.2026.130301","url":null,"abstract":"The scarcity of cathodic autoluminescencet restricts the development of coreactant-free electrochemiluminescent sensor for simultaneous detection of two targets. Herein, a novel coreactant-free electrochemiluminescent sensor was prepared based on Zr-DPA@TCPP MOF and AuAgNCs bimetallic nanoclusters served as a cathodic and anodic autoluminescencet emitter respectively. Significantly, this sensor system without any coreactants, effectively overcoming the simultaneous detection issue typically relying on different coreactants for cathode and anode luminescence. Meanwhile, complex matrix components can compromise the specificity and accuracy of the detection. Therefore, highly conductive and electrically neutral hydrogel was obtained to reduce interference from non-target substances. Poly (3,4-ethylenedioxythiophene): polystyrene sulphonate (PEDOT: PSS) was encapsulated in hydrogel to obtain PEDOT: PSS@hydrogel, besides, the crosslinking agents citronellal and TCPP provide a sterilization effect. Dual-function antifouling/sterilization electrically neutral hydrogel effectively addresses the main issues of complex matrix interference and secondary contamination. Under optimal conditions, the linear range was 1 × 10-3 ∼ 1 × 105 ng/L for Cd(II) and 1 ∼ 1 × 108 CFU/mL for S. aureus. The biosensor achieves remarkably low limits of detection (LODs) at 1.71 pg/L and 1.36 CFU/mL for Cd(II) and S. aureus, respectively. This work offers a new perspective on the development of coreactant-free ECL technology with high accuracy and stability.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"311 ","pages":"130301"},"PeriodicalIF":6.7,"publicationDate":"2027-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148468198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrical detection of cisplatin-DNA adduct formation using dielectrophoresis-based impedance spectroscopy. 基于介电阻抗谱的顺铂- dna加合物形成电检测。

IF 6.7 1区化学

Talanta Pub Date : 2027-01-01 Epub Date: 2026-07-08 DOI: 10.1016/j.talanta.2026.130268

Michihiko Nakano, Masafumi Inaba, Boonchai Techaumnat, Junya Suehiro

{"title":"Electrical detection of cisplatin-DNA adduct formation using dielectrophoresis-based impedance spectroscopy.","authors":"Michihiko Nakano, Masafumi Inaba, Boonchai Techaumnat, Junya Suehiro","doi":"10.1016/j.talanta.2026.130268","DOIUrl":"10.1016/j.talanta.2026.130268","url":null,"abstract":"Chemicals that form DNA adducts can be carcinogenic; therefore, their detection is essential for cancer research and genotoxicity screening. However, existing methods often require complex instrumentation or electrode modification, highlighting the need for simpler detection approaches. We aimed to develop a simple and rapid method for detecting DNA adduct formation using dielectrophoresis (DEP)-based impedance spectroscopy. Cisplatin was used as a model DNA-adduct-forming agent and incubated with DNA-labeled microbeads. Changes in DEP behavior were analyzed through crossover frequency measurements and impedance spectroscopy during frequency sweeps (200 kHz-10 MHz). Cisplatin treatment under conditions intended to promote DNA adduct formation was associated with a concentration-dependent decrease in the crossover frequency of DNA-labeled microbeads. During frequency sweeps, the conductance changed in the frequency region corresponding to the DEP transition, and the peak frequency derived from the conductance response showed strong agreement with the crossover-frequency trend. Quantitative detection was achieved over 0.05-0.5 mM, with a detection limit of 0.05 mM (50 μM). This DEP-based impedance approach offers a simple, cost-effective alternative to conventional methods that require electrode modification. Although the detection limit requires substantial improvement for future biological or clinical applications, the method provides a simple proof-of-concept platform for preliminary screening and methodological development.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"311 ","pages":"130268"},"PeriodicalIF":6.7,"publicationDate":"2027-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148403094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A hydrophilic chitosan cathode enables efficient uranium extraction and sulfamethoxazole degradation in a self-driven photoelectrocatalytic system. 一种亲水壳聚糖阴极在自驱动光电催化系统中实现了铀的高效萃取和磺胺甲恶唑的降解。

IF 9.6 1区化学

Journal of Colloid and Interface Science Pub Date : 2027-01-01 Epub Date: 2026-09-04 DOI: 10.1016/j.jcis.2026.141528

Yanlin Chen, Binsheng He, Lei Shang, Qingyan Zhang, Qingyi Zeng

{"title":"A hydrophilic chitosan cathode enables efficient uranium extraction and sulfamethoxazole degradation in a self-driven photoelectrocatalytic system.","authors":"Yanlin Chen, Binsheng He, Lei Shang, Qingyan Zhang, Qingyi Zeng","doi":"10.1016/j.jcis.2026.141528","DOIUrl":"10.1016/j.jcis.2026.141528","url":null,"abstract":"A self-driven photoelectrocatalytic system incorporating a chitosan-modified cathode (CSPEC) was developed for the synchronous removal of uranium (UO22+) and the antibiotic sulfamethoxazole (SMX) from complex radioactive wastewater, along with solar-powered electricity generation. Compared with pristine CF cathodes, the chitosan-modified cathode achieved 20.4 times faster uranium removal, 11.9 times greater SMX degradation, and enhanced power output. Chitosan modification significantly boosted the hydrophilicity of CF, while the plentiful amino and hydroxyl groups on chitosan enabled the preferential uptake of UO22+, facilitating its effective reduction. Under simulated sunlight, CSPEC maintained 99.5% UO22+ removal and 97.8% SMX degradation efficiency, with a bit performance decline over 15 cycles. This study offers a new design concept for high-efficiency cathode materials, facilitating resource recovery from solar-powered treatment of organic uranium-bearing wastewater and promoting the synergy between wastewater remediation and energy production.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"725 ","pages":"141528"},"PeriodicalIF":9.6,"publicationDate":"2027-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148928849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel targeted high-throughput workflow for serum chemical mixture profiling in population exposome-wide association studies. 在人群暴露相关性研究中，一种新的靶向高通量血清化学混合物分析工作流程。

IF 6.7 1区化学

Talanta Pub Date : 2027-01-01 Epub Date: 2026-07-08 DOI: 10.1016/j.talanta.2026.130275

Yan Wu, Linlin Chen, Jie Zhang, Lisong Chen, Shanshan Du, Rui Ding, Weimin Ye

{"title":"A novel targeted high-throughput workflow for serum chemical mixture profiling in population exposome-wide association studies.","authors":"Yan Wu, Linlin Chen, Jie Zhang, Lisong Chen, Shanshan Du, Rui Ding, Weimin Ye","doi":"10.1016/j.talanta.2026.130275","DOIUrl":"10.1016/j.talanta.2026.130275","url":null,"abstract":"Simultaneous determination of environmental pollutants with complex compositions and wide-ranging acid dissociation constants in biological matrices presents a significant analytical challenge. This study developed a highly sensitive and broad-spectrum analytical method based on ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). By employing phospholipid removal purification (PRP) technology and optimizing mobile phase pH conditions, we achieved simultaneous quantification of 230 environmental pollutants in serum. Comparative evaluation of sample pretreatment techniques revealed that low-temperature concentration caused preservative loss, while liquid-liquid extraction showed poor recovery for multiple compound classes. The PRP method was selected as the optimal approach due to its superior performance in reducing matrix effects compared to direct protein precipitation. Method validation demonstrated accurate quantification of all target analytes (relative standard deviation, RSD <15.1%), with 98.3% of compounds exhibiting satisfactory recoveries (80-120%). Analysis of serum samples from the Fuqing cohort participants detected 22 contaminants with detection frequencies >30%, among which PFHpA and PFOA were identified as risk factors for hyperuricemia. Notably, we provide the first evidence of a dose-response relationship between dehydroacetic acid exposure and hyperuricemia prevalence in a human population. This study established a robust solution for simultaneous screening of exposome-scale pollutants in complex biological samples.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"311 ","pages":"130275"},"PeriodicalIF":6.7,"publicationDate":"2027-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148468178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Retraction notice to "Preparation and characterization of magnetic nanocomposite of Schiff base/silica/magnetite as a preconcentration phase for the trace determination of heavy metal ions in water, food and biological samples using atomic absorption spectrometry" [Talanta 97 (2012) 87-95]. “希夫碱/二氧化硅/磁铁矿磁性纳米复合材料作为原子吸收光谱法测定水、食品和生物样品中痕量重金属离子的预富集相的制备和表征”撤回通知[Talanta 97(2012) 87-95]。

IF 6.7 1区化学

Talanta Pub Date : 2027-01-01 Epub Date: 2026-08-18 DOI: 10.1016/j.talanta.2026.130437

Hasan Bagheri, Abbas Afkhami, Mohammad Saber-Tehrani, Hosein Khoshsafar

引用次数: 0

Polymeric microneedle patches for rapid DNA extraction and molecular diagnosis of foliar pathogens of mung bean. 高分子微针贴片用于绿豆叶面病原菌的快速DNA提取和分子诊断。

IF 6.7 1区化学

Talanta Pub Date : 2027-01-01 Epub Date: 2026-07-10 DOI: 10.1016/j.talanta.2026.130267

Asim Mushtaq, Barsha Poudel, Alina Karki, Pouria Azarikhah, Ahmed Saad, Adrian Dinsdale, Sonia Fiorito, Noel L Knight, Zahra Faraji Rad

{"title":"Polymeric microneedle patches for rapid DNA extraction and molecular diagnosis of foliar pathogens of mung bean.","authors":"Asim Mushtaq, Barsha Poudel, Alina Karki, Pouria Azarikhah, Ahmed Saad, Adrian Dinsdale, Sonia Fiorito, Noel L Knight, Zahra Faraji Rad","doi":"10.1016/j.talanta.2026.130267","DOIUrl":"10.1016/j.talanta.2026.130267","url":null,"abstract":"Global food security is threatened by crop losses due to plant diseases. Early detection of pathogens is essential for implementing effective management practices to mitigate the negative impacts of disease. On-site molecular diagnostic techniques have significantly advanced for rapid and accurate identification of pathogens, but DNA extraction remains a labour-intensive and time-consuming bottleneck. This study demonstrates the ability of polyvinyl alcohol/polyvinylpyrrolidone (PVA/PVP) microneedle patches to extract detectable amounts of bacterial and plant DNA from diseased leaves within 1 min. This included DNA of a gram-negative Pseudomonas savastanoi pv. phaseolicola (Psp) and a gram-positive Curtobacterium flaccumfaciens pv. flaccumfaciens (Cff) bacteria, as well as mung bean (Vigna radiata). These bacteria cause halo blight and tan spot of mung bean, respectively. The DNA extracted using microneedle patches was of adequate quality and quantity to identify pathogens using real-time quantitative and droplet digital PCR (ddPCR). For leaves expressing halo blight symptoms, Psp DNA was detected in all DNA templates from microneedle (n = 5) and conventional extractions (n = 5). Similarly, in a time course study, Psp inoculated samples at day 6 showed the same detection in templates collected with microneedles and conventionally extracted samples. Detection of Cff DNA was less frequent, suggesting an impact of the sampling or inoculation technique. This study supports ongoing development of microneedle-based extraction as a simple and cost-effective method that could be used to support diagnosis of plant diseases, facilitate rapid decision-making for disease management, enhance biosecurity responses and area-freedom datasets, and prevent crop losses.","PeriodicalId":435,"journal":{"name":"Talanta","volume":"311 ","pages":"130267"},"PeriodicalIF":6.7,"publicationDate":"2027-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148454247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Constructing a mechanically robust and polysulfide-trapping aloe-based binder via molecular crosslinking for high-loading lithium-sulfur batteries. 通过分子交联构建高负载锂硫电池的机械坚固和多硫化物捕获芦荟基粘合剂。

IF 9.6 1区化学

Journal of Colloid and Interface Science Pub Date : 2027-01-01 Epub Date: 2026-09-05 DOI: 10.1016/j.jcis.2026.141534

Yuhao Qu, Shasha Liu, Bingbo Ni, Guangyin Li, Jia Zeng, Ruiqi Wang, Xingxing Gu, Li Xu

{"title":"Constructing a mechanically robust and polysulfide-trapping aloe-based binder via molecular crosslinking for high-loading lithium-sulfur batteries.","authors":"Yuhao Qu, Shasha Liu, Bingbo Ni, Guangyin Li, Jia Zeng, Ruiqi Wang, Xingxing Gu, Li Xu","doi":"10.1016/j.jcis.2026.141534","DOIUrl":"10.1016/j.jcis.2026.141534","url":null,"abstract":"Lithium‑sulfur batteries (LSBs) are promising for high-energy storage but are fundamentally limited by the poorly regulated multistep conversion of lithium polysulfides (LiPSs), leading to sluggish kinetics, severe shuttle effects, and safety concerns. Here, we report a multifunctional binder by constructing a cross-linked network between aloe gel (AG) and N-(phosphoryl-methyl) glycine (Glyp) with abundant N- and P-containing polar groups. Distinct from conventional inert binders, the AG-Glyp binder not only enhables strong chemical anchoring of LiPSs but also actively modulates their redox conversion behaviour. The synergistic interactions enable suppressed polysulfide diffusion, accelerated reaction kinetics, and uniform Li₂S nucleation, thereby transforming the intrinsically heterogeneous conversion into a spatially and kinetically controlled process. In addition, the incorporation of P-containing functional groups endows the electrode with enhanced flame-retardant characteristics, improving the intrinsic safety of the battery system. As a result, the cell delivers a high reversible capacity of 1236.1 mAh g-1 at 0.5C over 500 cycles, with a capacity decay of only 0.08% per cycle, and robust performance under high sulfur loading (5.0 mg cm-2) and lean electrolyte conditions (E/S = 11.2 μL mg-1). This work demonstrates that functional binders can serve as active regulators of electrochemical reactions while simultaneously enhancing safety, offering a new paradigm for advanced LiS batteries.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"725 ","pages":"141534"},"PeriodicalIF":9.6,"publicationDate":"2027-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The direct growth of SnO₂ on vertically aligned carbon nanotube arrays as high-performance anode for lithium ion batteries. 在垂直排列的碳纳米管阵列上直接生长SnO2作为锂离子电池的高性能阳极。

IF 9.6 1区化学

Journal of Colloid and Interface Science Pub Date : 2026-12-15 Epub Date: 2026-07-13 DOI: 10.1016/j.jcis.2026.141124

Qiankun Xiang, Qi Zhang, Henglong Ren, Yin Yang, Changbo Lu, Guofa Gao, Xinlong Ma, Xiaoqiao Huang

{"title":"The direct growth of SnO2 on vertically aligned carbon nanotube arrays as high-performance anode for lithium ion batteries.","authors":"Qiankun Xiang, Qi Zhang, Henglong Ren, Yin Yang, Changbo Lu, Guofa Gao, Xinlong Ma, Xiaoqiao Huang","doi":"10.1016/j.jcis.2026.141124","DOIUrl":"10.1016/j.jcis.2026.141124","url":null,"abstract":"SnO2-based anodes offer a higher theoretical capacity than conventional graphite, positioning them as a promising alternative for lithium-ion batteries. Nevertheless, poor conductivity and substantial volume changes during cycling restrict their widespread implementation. We hypothesize that combining vertically aligned carbon nanotube arrays (VACNTs), which serve as a conductive scaffold, with a citric-acid-derived carbon coating creates a dual‑carbon architecture that improves the cycling stability and charge transport of SnO2, thereby enhancing lithium storage performance. To verify this hypothesis, we employ a single-step interfacial functionalization strategy. This approach involves the in situ growth of SnO2 from a SnCl4·5H2O precursor on VACNTs, followed by in situ carbon coating using citric acid as the carbon source, ultimately constructing a dual‑carbon-structured SnO2/VACNTs@C composite. Within this structure, SnO2 nanoparticles are uniformly embedded in the VACNTs scaffold. This confined geometry effectively accommodates volume changes during lithiation/ delithiation, and the strong SnO2/VACNTs interfacial bonding enhances mechanical integrity and electrical conductivity. As a result, the SnO2/VACNTs@C anode demonstrates superior reversible capacity and rate performance compared to both pure SnO2 and uncoated SnO2/VACNTs electrodes. Compared with pristine SnO2, the material achieves a substantial improvement in lithium-ion diffusion coefficient. Paired with a LiFePO4 cathode in a full-cell configuration, it further delivers robust cycling stability, notable capacity retention, and competitive energy and power densities. This synthesis route offers a scalable method for the mass production of this high-performance composite.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"724 Pt 1","pages":"141124"},"PeriodicalIF":9.6,"publicationDate":"2026-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148454144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient Fenton-like degradation of tetracycline by superoxide radical-dominated metallized Salen-covalent organic framework in high-salt environments. 高盐环境下超氧化物自由基主导的金属化萨伦共价有机骨架高效fenton降解四环素的研究。

IF 9.6 1区化学

Journal of Colloid and Interface Science Pub Date : 2026-12-15 Epub Date: 2026-07-07 DOI: 10.1016/j.jcis.2026.141081

Yan Xu, Yuxin Wang, Yue Zhou, Yunchao Ma, Bo Hu, Chunbo Liu

{"title":"Efficient Fenton-like degradation of tetracycline by superoxide radical-dominated metallized Salen-covalent organic framework in high-salt environments.","authors":"Yan Xu, Yuxin Wang, Yue Zhou, Yunchao Ma, Bo Hu, Chunbo Liu","doi":"10.1016/j.jcis.2026.141081","DOIUrl":"10.1016/j.jcis.2026.141081","url":null,"abstract":"Tetracycline (TC) is an antibiotic contaminant widely present in the environment that is typically difficult to remove effectively using conventional treatment methods due to its stable polycyclic structure and high water-solubility. In this study, the Salen unit is incorporated into a covalent organic framework (Salen-COF), wherein Co2+ is anchored within the Salen cavity (Co-Salen-COF). Consequently, the Co-Salen-COF/peroxymonosulfate (PMS) system achieves complete degradation of 10 mg/L TC within 30 min, with a degradation rate constant of 0.1176 min-1. Furthermore, such system exhibits excellent degradation performance under various temperature conditions, in different types of actual water bodies, and in the presence of high concentrations of inorganic anions (200 mM). Electron spin resonance (ESR) and quenching experiments indicate that •O- 2 is the primary active species in this reaction, while 1O2 plays a secondary role. Density Functional Theory (DFT) calculations further reveal that the introduction of Co2+ significantly improves the charge separation properties of COFs, thereby enhancing their adsorption energy for PMS. Additionally, the cycling experiments demonstrate that Co-Salen-COF possesses satisfactory stability and reusability. Overall, this study proposes a novel •O- 2-based Fenton-like catalytic strategy for the efficient and stable degradation of organic pollutants in complex and high-salinity water bodies.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"724 Pt 1","pages":"141081"},"PeriodicalIF":9.6,"publicationDate":"2026-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148417527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0