Chemistry - An Asian Journal最新文献_第7页

Development of Binary Pd@PPyC-Bi2O3 Nanocomposite Sensor for Trace-Level Detection of 2,4-Dinitrophenol in Wastewater via Linear Sweep Voltammetry 线性扫描伏安法检测废水中痕量2,4-二硝基苯酚的二元Pd@PPyC-Bi2O3纳米复合传感器的研制

IF 3.2 3区化学

Chemistry - An Asian Journal Pub Date : 2026-08-20 DOI: 10.1002/asia.70951

M. Faisal, Md Mahmud Alam, Jahir Ahmed, Jehan Y. Al-Humaidi, Jari S. Algethami, Taghreed M. Fagieh, Syed Kashif Ali, Maha G. Batterjee, K. S. Alblawi, Farid A. Harraz, Mohammed Muzibur Rahman

{"title":"Development of Binary Pd@PPyC-Bi2O3 Nanocomposite Sensor for Trace-Level Detection of 2,4-Dinitrophenol in Wastewater via Linear Sweep Voltammetry","authors":"M. Faisal, Md Mahmud Alam, Jahir Ahmed, Jehan Y. Al-Humaidi, Jari S. Algethami, Taghreed M. Fagieh, Syed Kashif Ali, Maha G. Batterjee, K. S. Alblawi, Farid A. Harraz, Mohammed Muzibur Rahman","doi":"10.1002/asia.70951","DOIUrl":"https://doi.org/10.1002/asia.70951","url":null,"abstract":"<div>\u0000 \u0000 Here, an electrochemical sensor has been developed for the efficient determination of 2,4-dinitrophenol (2,4-DNP) in aqueous medium at neutral pH (7.0) phase. The chemical sensing probe was developed by modifying a flat glassy carbon electrode (GCE) with palladium-doped polypyrrole carbon–bismuth oxide nanocomposites (Pd@PPyC-Bi2O3 NCs), synthesized via a hydrothermal route. The electrochemical performance of the NCs fabricated with PEDOT:PSS conducting polymers modified electrode (Pd@PPyC-Bi2O3 NCs/PEDOT:PSS/GCE) was evaluated by using linear sweep voltammetry (LSV), which revealed a wide linear detection range (LDR) of 10.0 – 90.0 µM for 2,4-DNP. The calibration plot exhibited excellent linearity, with the sensor demonstrating a high sensitivity of 109.70 µA.µM−1.cm−2. The limit of detection (LOD) was obtained to be 0.92 ± 0.05 µM. In addition, the sensor exhibited good repeatability and stability under repeated measurements. Its practical applicability was further validated by successfully detecting 2,4-DNP in environmental collected waste water samples from different sources, with satisfactory recovery results. Overall, this study introduces a sensor Pd@PPyC-Bi2O3 NCs/PEDOT:PSS/GCE probe as a good electrochemical platform for efficient monitoring of 2,4-DNP by LSV, offering significant potential for environmental analysis and pollution control in a broad scales.\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 16","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148784656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Synergistic Tri-Metallic Heterogeneous Nanocatalyst for Ligand-Free Oxidative Homocoupling of Terminal Alkynes 末端炔无配体氧化均偶联的协同三金属非均相纳米催化剂

IF 3.2 3区化学

Chemistry - An Asian Journal Pub Date : 2026-08-20 DOI: 10.1002/asia.70943

Dibyashree Dolakasharia, Rashmi Chetry, Diksha J. Baruah, Manash R. Das, Pankaj Bharali, Utpal Bora

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Preface to the Special Issue on Polymeric Membranes for Advanced Applications 高分子膜先进应用特刊前言

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Chemistry - An Asian Journal Pub Date : 2026-08-20 DOI: 10.1002/asia.70959

Nadeem Baig, Md. Abdul Aziz

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Macromolecular Fluorimetric Probe With Naphthalimide Pendants for Selective Formaldehyde Detection 萘酰亚胺挂件大分子荧光探针选择性检测甲醛

IF 3.2 3区化学

Chemistry - An Asian Journal Pub Date : 2026-08-18 DOI: 10.1002/asia.70954

Swagata Pan, Subhadip Roy, Satendra Kumar, Priyadarsi De

{"title":"Macromolecular Fluorimetric Probe With Naphthalimide Pendants for Selective Formaldehyde Detection","authors":"Swagata Pan, Subhadip Roy, Satendra Kumar, Priyadarsi De","doi":"10.1002/asia.70954","DOIUrl":"https://doi.org/10.1002/asia.70954","url":null,"abstract":"<div>\u0000 \u0000 Formaldehyde (FA), a toxic and carcinogenic compound used extensively in industrial and preservation processes, requires reliable and selective detection methods, particularly in environmental, food, and biomedical samples. Herein, we report the development of a water-soluble, naphthalimide-based fluorescent polymeric probe, DCP-1, for the selective and rapid sensing of FA in aqueous solutions at physiological pH. The polymer has aromatic amine functional groups in its side chains, which specifically react with FA to form a stable imine. This transformation inhibits the native photoinduced electron transfer (PET), resulting in a distinct “turn-on” fluorescence response in an aqueous medium. The generation of the imine adduct was confirmed by mass spectrometry (MS) and 1H NMR spectroscopy for the representative reaction between a small molecule analogue and FA. DCP-1 exhibits excellent sensitivity, detecting FA at concentrations as low as 1.28 nM and displaying a strong fluorescence response within minutes at 100 nM FA. The probe exhibited reversible behavior upon bisulfite addition, demonstrating its ability to be reused efficiently for multiple FA detection cycles with consistent performance. Density functional theory (DFT) calculations further validated the proposed PET-based sensing mechanism.\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 16","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Construction of Interlayer 2D Conductive Channels in a Ti3C2Tx/Metal-Organic Framework Composite Toward Enhanced Flexible Supercapacitor Performance Ti3C2Tx/金属-有机框架复合材料层间二维导电通道的构建及其对柔性超级电容器性能的增强

IF 3.2 3区化学

Chemistry - An Asian Journal Pub Date : 2026-08-18 DOI: 10.1002/asia.70955

Hanlin Li, Wei Shan, Jiang Liu, Jiayi Zhang, Shibo Meng, Dongshu Liu, Wenxian Liu, Fangfang Wu, Wenhui Shi, Zhiyuan Zeng, Xiehong Cao

{"title":"Construction of Interlayer 2D Conductive Channels in a Ti3C2Tx/Metal-Organic Framework Composite Toward Enhanced Flexible Supercapacitor Performance","authors":"Hanlin Li, Wei Shan, Jiang Liu, Jiayi Zhang, Shibo Meng, Dongshu Liu, Wenxian Liu, Fangfang Wu, Wenhui Shi, Zhiyuan Zeng, Xiehong Cao","doi":"10.1002/asia.70955","DOIUrl":"https://doi.org/10.1002/asia.70955","url":null,"abstract":"<div>\u0000 \u0000 MXenes and their composites have been extensively investigated as electrode materials for supercapacitors, benefiting from the excellent electrical conductivity, abundant surface-active groups, and high flexibility of two-dimensional (2D) MXene nanosheets. However, from the severe self-stacking of MXene sheets and the presence of inactive surface terminations impede their further development in this field. Moreover, conventional MXene composites generally suffer from inefficient charge transport because traditional conductive particulate spacers create only point-contact pathways rather than continuous conductive channels. To address these issues, a strategy is proposed to construct continuous interlayer 2D conductive channels integrated with a gel-state long-range conductive network in a Ti3C2Tx/π-d conjugated metal-organic framework (MOF) composite. In this architecture, spontaneous interactions between surface functional groups form a gel-state conductive network with abundant voids, enabling efficient electron and ion transport through continuous interlayer 2D channels. Subsequent thermal treatment induces nitrogen doping from the MOF into the composite, creating additional electrochemically active sites, thereby realizing secondary electrochemical enhancement. As a result, the composite electrode exhibits markedly improved power and energy densities compared with bare Ti3C2Tx electrode. This work provides an effective interfacial engineering strategy for the design of high-performance pseudocapacitive electrode materials.\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 16","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Palladium-Catalyzed Fluoroallylation of Aldimine Esters With gem-Difluorocyclopropanes: Synthesis of Fluorinated α-Amino Acid Derivatives 钯催化醛二胺酯与宝石-二氟环丙烷的氟烯丙化：氟化α-氨基酸衍生物的合成

IF 3.2 3区化学

Chemistry - An Asian Journal Pub Date : 2026-08-18 DOI: 10.1002/asia.70960

Jia-Wei Tang, Kaiyang Xu, Junqi Su, Zili Chen, Leiyang Lv

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Crosslinked CO2-Based Polycarbonate: Biobased Pressure-Sensitive Adhesives Combining Wettability and Cohesive Strength 交联二氧化碳基聚碳酸酯：结合润湿性和内聚强度的生物基压敏粘合剂

IF 3.2 3区化学

Chemistry - An Asian Journal Pub Date : 2026-08-18 DOI: 10.1002/asia.70944

Mengsen Xian, Ruoyu Zhang, Guangzhen Shao, Chunwei Zhuo, Shunjie Liu, Xianhong Wang

{"title":"Crosslinked CO2-Based Polycarbonate: Biobased Pressure-Sensitive Adhesives Combining Wettability and Cohesive Strength","authors":"Mengsen Xian, Ruoyu Zhang, Guangzhen Shao, Chunwei Zhuo, Shunjie Liu, Xianhong Wang","doi":"10.1002/asia.70944","DOIUrl":"https://doi.org/10.1002/asia.70944","url":null,"abstract":"<div>\u0000 \u0000 CO2-based polycarbonates show great potential for application as biodegradable pressure-sensitive adhesives (PSAs). However, it remains challenging for polycarbonate-based PSAs to achieve rapid surface wetting while simultaneously maintaining sufficient cohesive strength. To address this issue and improve adhesive performance, we propose a strategy for preparing crosslinked polycarbonate PSAs. As a proof of concept, bio-derived epoxides, including furfuryl glycidyl ether and n-butyl glycidyl ether, were introduced as key monomers to synthesize functionalized CO2-based polycarbonates (PBFCs). The crosslinked PSAs were subsequently constructed through a Diels–Alder reaction, while the flexible side chains enabled rapid wetting of the adhesive on the substrate surface. As a result, the static shear adhesion was significantly improved from approximately 0.1 h to over 24 h, accompanied by a tack grade of #2. Notably, the prepared PSAs could be reused for three cycles while maintaining a peel strength of approximately 2 N cm−1, and no visible residue was observed on the substrate after peeling. This study develops a series of crosslinked CO2-based PSAs from bio-based epoxides, providing a promising platform for the design of high-performance biodegradable PSAs.\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 16","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148784379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Synthesis of Composite Molecules of a Co4O4 Cubane Complex and Perylenediimide Moieties Co4O4立方烷配合物与苝酰亚胺基团复合分子的合成

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Chemistry - An Asian Journal Pub Date : 2026-08-16 DOI: 10.1002/asia.70909

Toshi Nagata, Wataru Ishikawa

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Green and Sustainable Catalytic Reduction of Nitroarenes Using Chitosan- and Oxidized Chitosan-Stabilized NiO Nanoparticles: A Comparative Study 壳聚糖和氧化壳聚糖稳定的NiO纳米颗粒绿色可持续催化还原硝基芳烃的比较研究

IF 3.2 3区化学

Chemistry - An Asian Journal Pub Date : 2026-08-16 DOI: 10.1002/asia.70947

Puneet Tiwari, Devendra Narayan Tripathi, Manisha D. Pal, Mani Prabha, Anshu Sharma, Neha Sharma, Vandana Singh, Tulika Malviya

{"title":"Green and Sustainable Catalytic Reduction of Nitroarenes Using Chitosan- and Oxidized Chitosan-Stabilized NiO Nanoparticles: A Comparative Study","authors":"Puneet Tiwari, Devendra Narayan Tripathi, Manisha D. Pal, Mani Prabha, Anshu Sharma, Neha Sharma, Vandana Singh, Tulika Malviya","doi":"10.1002/asia.70947","DOIUrl":"https://doi.org/10.1002/asia.70947","url":null,"abstract":"<div>\u0000 \u0000 The design of sustainable nanocatalysts for the efficient reduction of toxic nitroarenes is critical for sustainable environmental remediation. In this study, nickel oxide (NiO) nanoparticles were prepared and stabilized with biopolymer-based ligands (chitosan and oxidized chitosan) to produce green nanocatalysts. The oxidized chitosan was prepared via selective oxidation of chitosan's primary hydroxyl groups to carboxylic acids, introducing additional surface functional groups that enhance metal-ligand interactions. Both nanocatalyst systems were comprehensively characterized using FTIR, XRD, SEM, TEM, UV–Vis, TGA, and BET analysis.\u0000 The catalytic efficiency of these biopolymer-stabilized NiO nanoparticles was assessed through the reduction of nitroarenes under the influence of NaBH4. Remarkably, the oxidized chitosan-stabilized NiO nanoparticles reduced p-nitrophenol within 2 min, significantly faster than their native chitosan counterparts, which required 20 min under identical conditions, due to the enhanced electron transfer capacity and increased hydrophilicity of the oxidized chitosan matrix. Furthermore, the oxidized catalyst exhibited excellent reusability over fifteen cycles with minimal loss in activity.\u0000 This comparative investigation demonstrates the enhanced effectiveness of oxidized chitosan in biopolymer-based nanocatalysis systems and offers a sustainable approach for the remediation of nitroarene pollutants. The findings underscore the potential of oxidized chitosan functionalized nanomaterials in green chemistry and environmental applications.\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 16","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Design and Optimization of Carbon-Based Bimetallic Catalysts for Catalytic Cracking of Tar Model Compounds 焦油模型化合物催化裂化碳基双金属催化剂的设计与优化

IF 3.2 3区化学

Chemistry - An Asian Journal Pub Date : 2026-08-16 DOI: 10.1002/asia.70953

Peng He, Niyu Yao, Xiang Xu, Zheng Zeng, Liqing Li

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