Journal of the Taiwan Institute of Chemical Engineers最新文献

{"title":"Interfacial-engineered construction of heterostructured PZM@P-NiCoPS architectures: towards robust, wear-resistant and non-flammable epoxy composites","authors":"Weilong Chen ,&nbsp;Jinian Yang ,&nbsp;Bingyi Li ,&nbsp;Hanxing Yang ,&nbsp;Yufan Zhang ,&nbsp;Xia Xu ,&nbsp;Zhoufeng Wang ,&nbsp;Shibin Nie","doi":"10.1016/j.jtice.2026.106663","DOIUrl":"10.1016/j.jtice.2026.106663","url":null,"abstract":"<div><h3>Background</h3><div>Epoxy resin (EP) is extensively employed in high-end fields such as aerospace and naval engineering, but its inherent poor wear resistance and flame retardancy pose significant challenges for applications in harsh environments. To solve this problem, the incorporation of functional nanofillers into EP has emerged as one of the most promising solutions.</div></div><div><h3>Methods</h3><div>In present work, we have constructed heterostructured architectures of polyphosphazene microspheres supporting phosphorus-functionalized nickel/cobalt bimetallic phyllosilicate (PZM@P-NiCoPS) <em>via</em> interfacial engineering, featuring both excellent reinforcement and wear resistance of phyllosilicate and flame retardancy from phosphorus-containing groups. Following meticulous integration with the resin matrix, the structure-property relationships of EP/PZM@P-NiCoPS composites were comprehensively explored.</div></div><div><h3>Significant Findings</h3><div>Extensive measurements confirm the successful synthesis of target PZM@P-NiCoPS architectures, which are uniformly dispersed within the matrix resin with well-bonded interfaces and strengthens the mechanical performances remarkably. By adding 1% of PZM@P-NiCoPS, the tensile strength and elastic modulus are increased by 37.04% and 29.6%, respectively. Tribological investigation demonstrates that PZM@P-NiCoPS significantly enhances the abrasion resistance of EP composites, and the lowest wear rate of 0.84×10⁻⁵ mm³/Nm is achieved when the filler concentration reaches 3%, showing a considerable reduction of 91.3% relative to control sample. Finally, the great positive influence of added PZM@P-NiCoPS on the flame retardancy of EP composites is also discussed. Thus, this work demonstrates a facile yet promising strategy to design efficient multi-functional reinforcements, as well as high-performance polymeric composites.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"185 ","pages":"Article 106663"},"PeriodicalIF":6.3,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146090789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Near-infrared light to heat conversion to boost the antibacterial therapy with Cu2+ modified polydopamine hydrogel","authors":"Zhi Li ,&nbsp;Yayao Li ,&nbsp;Xiayun Liu ,&nbsp;Xiang Cui ,&nbsp;Lei Luo ,&nbsp;Li Chen ,&nbsp;Yu Meng ,&nbsp;Mingshan Zhu","doi":"10.1016/j.jtice.2026.106638","DOIUrl":"10.1016/j.jtice.2026.106638","url":null,"abstract":"<div><div><em>Background:</em> Bacterial infections pose a major health threat, driving the need for highly effective antimicrobial biomaterials. Near-infrared (NIR) light-responsive hydrogels are a promising strategy, offering spatially and temporally controllable antibacterial properties.</div><div><em>Methods:</em> A hydrogel of copper ion-doped polydopamine-lignin-chitosan (CLS) was constructed. Its morphology, chemical structure, and optical properties were characterized by Scanning electron microscopy, Fourier transform infrared spectroscopy, and UV–visible diffuse reflectance spectroscopy, while its photothermal conversion efficiency and reactive oxygen species (ROS) generation were assessed via Infrared imager and Electron paramagnetic resonance, respectively.</div><div><em>Significant Findings:</em> With chitosan as the backbone, the amino and hydroxyl groups on its surface confer biocompatibility and bacterial adsorption capacity. Lignin serves as the reinforcing phase, providing stable three-dimensional mechanical support and light-to-heat conversion capability. Under 808 nm near-infrared irradiation, the hydrogel exhibits outstanding photothermal conversion performance, reaching 50 °C within 5 min while achieving approximately 99.6 % inhibition of <em>Escherichia coli</em>. This high-efficiency antibacterial activity stems from the synergistic effects of photothermal effect and multiple ROS including •O₂^-, •OH and ¹O₂ produced by valence cycling of Cu²⁺ and photosensitization induced by photo-generated electrons in PDA, excited by near-infrared light. This study provides novel insights for designing novel antimicrobial materials and developing solar-driven antibacterial strategies.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106638"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A MOF-derived hierarchical Mn–Co3O4 catalyst for superior low-temperature NH3-SCR of NOx","authors":"Pei-Cheng Cheng ,&nbsp;Shang-Cyuan Chen ,&nbsp;Shu-Fen Cheng ,&nbsp;Tzi-Yi Wu ,&nbsp;Feng-Chih Chou ,&nbsp;Yuan-Chung Lin","doi":"10.1016/j.jtice.2026.106625","DOIUrl":"10.1016/j.jtice.2026.106625","url":null,"abstract":"<div><div>Conventional V₂O₅-WO₃/TiO₂ catalysts for the selective catalytic reduction of NOx with NH₃ (NH₃-SCR) suffer from poor activity at low temperatures (&lt;300°C). To address this, we report a high-performance, vanadium-free catalyst engineered from a ZIF-67 metal-organic framework (MOF) precursor. By controllably doping ZIF-67 with manganese via ion exchange followed by thermal decomposition, we synthesized a series of MnOx@Co₃O₄ catalysts with a hierarchical porous structure and highly exposed bimetallic active sites. The optimized catalyst, containing 0.05M Mn, exhibited exceptionally low-temperature activity, achieving 95.7% NO conversion at just 175°C with an outstanding N₂ selectivity of 95–98%. This performance is attributed to a strong synergistic effect between Mn and Co, which enhances the catalyst's redox properties. The catalyst also demonstrated excellent operational durability, maintaining over 95% conversion during an 80-h stability test and showing good resistance to water vapor. This MOF-derived synthesis strategy offers a new paradigm for designing highly efficient catalysts, presenting a promising pathway toward next-generation systems for low-temperature environmental catalysis.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106625"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quaternary ammonium salt corrosion inhibitors: a QSAR-based strategy for targeted molecular design","authors":"Le Gao ,&nbsp;Biyun Su ,&nbsp;Yuzhen Bai ,&nbsp;Shaowei Wu ,&nbsp;Yu Zhao ,&nbsp;Zhuchao Meng ,&nbsp;Boli Hou","doi":"10.1016/j.jtice.2026.106623","DOIUrl":"10.1016/j.jtice.2026.106623","url":null,"abstract":"<div><h3>Background</h3><div>Quaternary ammonium salt (QAS) corrosion inhibitors hold significant application value in the field of metal anticorrosion. However, traditional screening methods are inefficient and lack precise guidance for design at the molecular structure level. This study aims to overcome the limitations of existing design and evaluation methods for corrosion inhibitors by proposing a novel directed molecular design strategy for quaternary ammonium QAS inhibitors based on a Quantitative Structure-Activity Relationship (QSAR) model.</div></div><div><h3>Methods</h3><div>The molecular structures of T1-T5 and their inhibition efficiencies were determined. Various molecular descriptors were calculated. Pearson correlation analysis identified the electron transfer number (<em>ΔN</em>) as a key descriptor. A linear regression model was established and validated. Subsequently, the energy gap (<em>ΔE</em>) was incorporated to construct a multi-descriptor QSAR model using multiple linear regression.</div></div><div><h3>Significant Findings</h3><div>A robust QSAR model (<em>η_w</em> = 28.733 + 32.542<em>ΔN</em> - 2.874<em>ΔE</em>) was developed. Guided by the model, novel quaternary ammonium salt (Q molecules were designed by selecting advantageous functional groups and optimizing the molecular skeleton. Theoretical calculations confirmed that the newly designed molecules (FZ1-FZ3) exhibited significantly improved corrosion inhibition efficiency for N80 steel, exceeding 75%. This study provides an efficient strategy for the rational design of high-performance corrosion inhibitors.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106623"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A nitrogen-sulfur co-doped porous carbon Zinc-based catalyst for the acetylene hydration","authors":"Yufan Ma,&nbsp;Qianran Sun,&nbsp;Qingle Wang,&nbsp;Bin Dai,&nbsp;Zongyuan Wang,&nbsp;Qinqin Wang","doi":"10.1016/j.jtice.2026.106655","DOIUrl":"10.1016/j.jtice.2026.106655","url":null,"abstract":"<div><h3>Background</h3><div>The acetylene hydration process for acetaldehyde production represents a well-established and strategically significant pathway in coal chemistry. Nevertheless, this reaction encounters several challenges, such as the high reactivity of acetylene, competitive adsorption among reactants, and intricate reaction networks that lead to by-product formation. The remarkable porosity and exceptional chemical stability of metal-organic frameworks endow them with immense potential for the preparation of porous carbon materials.</div></div><div><h3>Methods</h3><div>Herein, the sulfur-modified ZIF-8 materials <em>in situ</em> were synthesized through a one-pot method and further prepared a N, S co-doped porous carbon Zn-based catalyst by thermal decomposition. The catalytic performance of N, S co-doped porous carbon Zn-based materials results showed that the Zn-NSC-600 exhibited excellent catalytic performance.</div></div><div><h3>Significant Findings</h3><div>The X-ray absorption fine structure (XAFS) and X-ray photoelectron spectroscopy (XPS) results revealed the presence of zinc species in N, S co-doped porous carbon Zn-based materials as Zn-N₃ structure, while sulfur atoms were embedded into the carbon support via C-S-C bonds. The TEM and EDS results revealed an evident carbon shell on the surface of the Zn-NSC-600 material, with the active metal Zn exhibiting excellent dispersibility. Additionally, the addition of S-atoms could effectively stabilize the material structure and suppress the loss of active Zn species. Meanwhile, the DFT calculations indicated that the activation of acetylene was the rate-determining step for the Zn-NSC materials. The introduction of sulfur atoms could significantly decrease the activation energy of acetylene, which is more favorable for the reaction. This study not only presented a novel N, S co-doped porous carbon Zn-based catalysts with superb catalytic efficiency but also proposed a strategy to enhance and control the heteroatom doping of Zn-based catalysts for acetylene hydration.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106655"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146073874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Ce doping on the magnetic properties of LaFeO3 nanofibers","authors":"Hanqiong Luo ,&nbsp;Chao Song ,&nbsp;Jiayue Xu,&nbsp;Yuhao Gan,&nbsp;Jiaqi Yu,&nbsp;Yin Wang,&nbsp;Yajiao Song,&nbsp;Jinghai Liu,&nbsp;Quanli Hu","doi":"10.1016/j.jtice.2025.106615","DOIUrl":"10.1016/j.jtice.2025.106615","url":null,"abstract":"<div><h3>Background</h3><div>LaFeO₃ has unique physicochemical properties and exhibits great application potential in fields such as catalysis, sensors, energy conversion and storage, as well as magnetic storage. LaFeO₃ possesses fascinating magnetic characteristics. Ce doping in LaFeO₃ can bring about changes in the physicochemical properties.</div></div><div><h3>Method</h3><div>A simple electrospinning and annealing way were used to fabricate Ce-doped LaFeO₃ nanofibers, such as La_{0.9Ce_0.1}FeO₃, La_0.8Ce_0.2FeO₃, and La_0.7Ce_0.3FeO₃. The perovskite orthorhombic structures of the fabricated samples were revealed by Rietveld refined XRD patterns. The magnetic characteristics of these fabricated nanofibers were clarified by a Quantum Design SQUID vibrating sample magnetometer.</div></div><div><h3>Significant finding</h3><div>Magnetic properties indicated that LaFeO₃ nanofibers featured the coexistence of weak ferromagnetism and antiferromagnetism. An appropriate amount of Ce doping can notably enhance the ferromagnetism, with the magnetization increasing significantly. The internal mechanism through which Ce doping influenced the magnetism of LaFeO₃ nanofibers was thoroughly explored, providing a crucial theoretical basis and experimental reference for the optimal design and extensive application of LaFeO₃-based magnetic materials. These findings are expected to inspire the advancement of lanthanum ferrite nanomaterials for applications in storage devices and sensors.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106615"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A soft sensor regression modeling method for complex chemical processes based on Variational Autoencoders and vine copula","authors":"Guangsheng Huang,&nbsp;Shaojun Li","doi":"10.1016/j.jtice.2026.106646","DOIUrl":"10.1016/j.jtice.2026.106646","url":null,"abstract":"<div><div>Background: In contemporary chemical production processes, the limitations in sensor deployment and high detection costs hinder the real-time measurement of certain critical variables, significantly impeding process control and optimization efforts. Soft sensor technology addresses this challenge by facilitating the indirect prediction of unmeasurable variables through the establishment of a mapping relationship between inputs and outputs, marking it as a crucial tool in this context. However, in practical industrial settings, the scarcity of labeled samples, combined with the non-linear and non-Gaussian characteristics of the data, poses significant challenges for soft sensor modeling.</div><div>Methods: To tackle these issues, this paper proposes a novel soft sensor modeling method that integrates Variational Autoencoders (VAEs) with Vine Copula regression (VAE-VCR). This approach begins by utilizing a VAE to learn the latent distribution from the limited labeled samples and generate virtual samples. Following this, a sample selection strategy based on generalized local probability (GLP) and Mahalanobis distance is employed to identify suitable augmented samples, thereby enhancing the training dataset. Subsequently, a Vine Copula regression model is constructed using this augmented dataset, allowing for the prediction of the target variable based on conditional expectation.</div><div>Significant Findings: Both a numerical example and an industrial case study illustrate that this method achieves high predictive accuracy and robust generalization capabilities in addressing non-Gaussian, nonlinear small-sample modeling challenges.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106646"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146184957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conversion of waste biomass to highly porous biochar for tricresyl phosphate removal: Adsorption performance study and exhausted adsorbent re-utilization","authors":"Yi Xie ,&nbsp;Jiali Yu ,&nbsp;Mingjin Cai ,&nbsp;Lefang Chen ,&nbsp;Yongkui Zhang ,&nbsp;Yabo Wang ,&nbsp;Bi Chen","doi":"10.1016/j.jtice.2025.106616","DOIUrl":"10.1016/j.jtice.2025.106616","url":null,"abstract":"<div><h3>Background</h3><div>Organophosphorus esters (OPEs) are hazardous pollutants frequently detected in aquatic environments at concentrations ranging from ng L^‒1 to μg L^‒1. It has been widely detected in samples from wastewater treatment plants and in surface waters of lakes and rivers, exhibiting reproductive toxicity, neurotoxicity, cardiotoxicity, and hepatotoxicity to organisms. Adsorption is regarded as a promising technology to treat low concentration pollutants in water, which requires highly efficient and cost-effective adsorbents. Adsorbents prepared from waste biomass are attracting increasing attention from researchers.</div></div><div><h3>Methods</h3><div>Waste biomass of baijiu distillers’ grains (BDGs) was applied as the precursor to prepare biochar in the presence of potassium salt as activator. The biochar materials were evaluated as adsorbents for tricresyl phosphate (TCP) removal from water. Both batch and continuous adsorption performances were investigated.</div></div><div><h3>Significant findings</h3><div>Superior adsorption performances towards TCP were achieved, including a large adsorption capacity (653.6 mg g^‒1), good adaptability to solution pH and background water quality, and 5% and 95% breakthrough time of 3.67 h and 17.53 h in column adsorption process. The exhausted adsorbent could be converted to metal phosphide loaded carbon catalyst for advanced oxidation reaction, providing another choice for waste adsorbent disposal and re-utilization of P resource in OPEs.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106616"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing low-temperature CO2 methanation via a dual anchoring impregnation strategy for highly dispersed Ni-Ce/SBA-15 catalysts","authors":"Chen Feng ,&nbsp;Haoxi Jiang ,&nbsp;Hao Gong ,&nbsp;Lingtao Wang ,&nbsp;Guochao Yang","doi":"10.1016/j.jtice.2026.106640","DOIUrl":"10.1016/j.jtice.2026.106640","url":null,"abstract":"<div><h3>Background</h3><div>CO₂ methanation plays a critical role in reducing carbon emissions. The development of Ni-based catalysts with simple synthesis processes and low costs for low-temperature methanation demonstrates promising industrial application prospects, yet it also faces significant challenges. Ni-based catalysts generally require higher metal loadings, which in turn makes it difficult to achieve high metal dispersion, severely limiting their low-temperature catalytic activity.</div></div><div><h3>Methods</h3><div>In this study, a simple co-impregnation method was employed in combination with a dual-strategy approach: hydrogen peroxide pretreatment to increase the concentration of silanol groups on the SBA-15 silica support surface and the assistance of ethylene glycol (EG) during the impregnation process.</div></div><div><h3>Significant findings</h3><div>The significant finding of this work lies in the demonstrated synergy of a dual strategies to stabilize highly dispersed Ni catalysts for CO₂ methanation. While high dispersion and good low-temperature activity have been reported elsewhere, this study specifically shows that combining (1) ethylene glycol-assisted impregnation to improve initial dispersion with (2) the utilization of SBA-15 silanol groups as anchoring sites effectively mitigates sintering. This combined approach resulted in a catalyst achieving 77% CO₂ conversion and 100% CH₄ selectivity at 250 °C, with characterization confirming the enhanced stability afforded by the synergy.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106640"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eco-friendly synthesis of bio-supported silver nanoparticles over magnetic chitosan: An efficient recyclable catalyst for N-substituted tetrazoles synthesis","authors":"Yahao Dong ,&nbsp;Ahmad Parandoust ,&nbsp;Reza Sheibani","doi":"10.1016/j.jtice.2025.106605","DOIUrl":"10.1016/j.jtice.2025.106605","url":null,"abstract":"<div><h3>Background</h3><div>Tetrazoles are significant <em>N</em>-containing heterocycles with broad applications in pharmaceuticals, coordination chemistry, and materials science. Conventional nanomaterial-based synthetic approaches often rely on hazardous reagents and non-recyclable catalysts, limiting their sustainability. Thus, the development of eco-friendly, recyclable, and biosynthesized nanocatalysts for the efficient synthesis of these heterocycles remains a significant challenge.</div></div><div><h3>Methods</h3><div>In this study, a novel and eco-friendly approach for synthesizing magnetic chitosan-supported silver nanoparticles (Ag NPs@MCS) has been developed utilizing the aqueous extract of <em>Adinandra nitida</em> leaves as a bioreducing/capping agent. The spherical Ag NPs were immobilized on modified chitosan-coated magnetic NPs. The nanocatalyst was extensively characterized by X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), vibrating sample magnetometer (VSM), thermogravimetry/derivative thermogravimetry (TG-DTG), energy dispersive spectroscopy (EDS), elemental mapping, and fast Fourier transform (FFT) analyses. The as-prepared Ag NPs@MCS nanocomposite demonstrated excellent catalytic activity in the (2 + 3)-cycloaddition reaction involving various secondary/tertiary cyanamides with sodium azide (NaN₃), leading to high-yield production of amino- and <em>N</em>-sulfonyl tetrazoles.</div></div><div><h3>Significant Findings</h3><div>The biosynthesized Ag NPs@MCS nanocomposite exhibited remarkable catalytic activity, affording high yields of <em>N</em>-substituted tetrazole derivatives under thermal conditions. Remarkably, this green synthesis approach avoids harmful reagents for Ag NPs synthesis and provides a highly efficient, recyclable, and reusable catalyst. The catalyst retained its structural integrity and catalytic performance over seven consecutive cycles, highlighting its stability and potential for sustainable organic synthesis.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"183 ","pages":"Article 106605"},"PeriodicalIF":6.3,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146073963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}