Journal of the Taiwan Institute of Chemical Engineers最新文献_第9页

Corrigendum to “Chitosan-Coated Coconut Shell Composite: A Solution for Treatment of Cr(III)-Contaminated Tannery Wastewater” [Journal of Taiwan Institute of Chemical Engineers: J. Taiwan Institute Chem Eng. 164C, 105478. (April 2024)] “壳聚糖包覆椰壳复合材料：处理Cr（III）污染制革废水的解决方案”[j] .台湾化学工程学会学报，164C, 105478。(2024年4月)

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-05 DOI: 10.1016/j.jtice.2025.106312

Tonni Agustiono Kurniawan , Fatima Batool , Ayesha Mohyuddin , Hui Hwang Goh , Mohd Hafiz Dzarfan Othman , Faissal Aziz , Abdelkader Anouzla , Hussein El-Hazmi , Kit Wayne Chew

引用次数: 0

Combustion characteristics and pollutant emissions of coal and eucalyptus co-firing in a 1000 MW ultra-supercritical wall-fired boiler 1000mw超超临界壁式锅炉煤与桉树共烧燃烧特性及污染物排放

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-05 DOI: 10.1016/j.jtice.2025.106320

Chunxiang Chen , Xu Zhang , Lihui He , Ling Wang , Junfeng Lou , Zhaosheng Yu , Guangmin Peng , Xi Ma

{"title":"Combustion characteristics and pollutant emissions of coal and eucalyptus co-firing in a 1000 MW ultra-supercritical wall-fired boiler","authors":"Chunxiang Chen , Xu Zhang , Lihui He , Ling Wang , Junfeng Lou , Zhaosheng Yu , Guangmin Peng , Xi Ma","doi":"10.1016/j.jtice.2025.106320","DOIUrl":"10.1016/j.jtice.2025.106320","url":null,"abstract":"<div><h3>Background</h3><div>The rapid development of renewable energy has led to a decline in the market share of thermal power generation, conventional coal-fired plants now face intensified demands for flexible operation for boiler units. However, the effect of boiler load and over-fire air (OFA) ratios on co-combustion characteristics and pollutant emission characteristics of coal and biomass to be clarified.</div></div><div><h3>Methods</h3><div>This paper studied a 1000 MW ultra-supercritical wall-fired boiler blended with 10 % eucalyptus wood (calculated based on calorific value) under different loads (BMCR, THA, 75 % THA, 50 % THA, 40 % THA) by computational fluid dynamics (CFD) simulation. And the effect of different OFA ratios at 40 %THA was further analyzed.</div></div><div><h3>Significant Findings</h3><div>The results demonstrate that load reduction induces progressive flow field degradation, with average temperature dropping 121 K from BMCR to 40 %THA. NO<sub>x</sub> emission demonstrates non-monotonic variation, recording concentrations of 232, 226, 222, 245, and 251 ppm across loads. Increasing OFA ratio from 15 % to 25 % enhances combustion efficiency while reducing NO<sub>x</sub> concentration by 7.29 %. Further elevation to 30 % OFA ratio leads to a slight increase in gas temperature and the heat flux, but the NO<sub>x</sub> concentration increases from 234 to 271 ppm. 25 % OFA ratio is beneficial to heat transfer and low NO<sub>x</sub> emission.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"176 ","pages":"Article 106320"},"PeriodicalIF":6.3,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144772909","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}

引用次数: 0

Flow and mixing characteristics in a stirred tank equipped with a swirl-type impeller (SWINGSTIR®) 配备旋涡型叶轮（SWINGSTIR®）的搅拌槽内的流动和混合特性

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-04 DOI: 10.1016/j.jtice.2025.106309

Saya Yamada , Noriyuki Yamagami , Tomoho Kato , Tomohiro Ogawa , Masahiko Kikuchi , Yoshiyuki Komoda , Naoto Ohmura

{"title":"Flow and mixing characteristics in a stirred tank equipped with a swirl-type impeller (SWINGSTIR®)","authors":"Saya Yamada , Noriyuki Yamagami , Tomoho Kato , Tomohiro Ogawa , Masahiko Kikuchi , Yoshiyuki Komoda , Naoto Ohmura","doi":"10.1016/j.jtice.2025.106309","DOIUrl":"10.1016/j.jtice.2025.106309","url":null,"abstract":"<div><h3>Background</h3><div>The performance of mixing in stirred vessels is strongly influenced by impeller geometry. In particular, swirl-type impellers such as SWINGSTIR® exhibit unique flow behavior due to their non-rotational, oscillatory motion. However, the effects of impeller blade width (<em>d</em><sub>I</sub>) and rotation diameter (<em>d</em><sub>R</sub>) on mixing and flow characteristics remain insufficiently understood.</div></div><div><h3>Method</h3><div>This study investigates the influence of <em>d</em><sub>I</sub> and <em>d</em><sub>R</sub> on mixing performance through a combination of decolorization experiments, ultrasonic velocity profiler (UVP) measurements, and computational fluid dynamics (CFD) simulations using the moving particle semi-implicit (MPS) method. A series of configurations with varying geometries were tested to identify optimal mixing conditions.</div></div><div><h3>Significant findings</h3><div>Mixing performance decreased with increasing blade width <em>d</em><sub>I</sub>, likely due to enhanced recirculating flow near the vessel bottom that inhibited axial mixing. Conversely, increasing <em>d</em><sub>R</sub> improved turbulence intensity and enhanced mixing efficiency. The trajectory of the impeller tip—shaped by both <em>d</em><sub>I</sub> and <em>d</em><sub>R</sub>—played a critical role: larger <em>d</em><sub>I</sub> caused orbit distortion, while larger <em>d</em><sub>R</sub> created a cavity near the vessel center. Quantitative evaluation using orbit circularity and area balance parameters showed that mixing was most effective when the impeller orbit was nearly circular and the spatial distribution of flow regions was balanced. These results highlight the importance of geometric interaction in impeller design and provide guidance for optimizing mixing performance in swirl-type systems.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"176 ","pages":"Article 106309"},"PeriodicalIF":6.3,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144772907","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}

引用次数: 0

Photocatalytic degradation of formaldehyde by nitrogen-doped graphene quantum dots under various light conditions 不同光照条件下氮掺杂石墨烯量子点对甲醛的光催化降解

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-01 DOI: 10.1016/j.jtice.2025.106262

Yusen Lin , Cheng-Chen Chen , Chien-Te Hsieh , Jin-Ren Liou

{"title":"Photocatalytic degradation of formaldehyde by nitrogen-doped graphene quantum dots under various light conditions","authors":"Yusen Lin , Cheng-Chen Chen , Chien-Te Hsieh , Jin-Ren Liou","doi":"10.1016/j.jtice.2025.106262","DOIUrl":"10.1016/j.jtice.2025.106262","url":null,"abstract":"<div><div>This study investigates the photocatalytic degradation of formaldehyde by nitrogen-doped graphene quantum dots (N-doped GQDs) under simulated indoor lighting. Adhering to ASHRAE Standard 145.1 for indoor air quality, the research utilized a breakthrough capacity test system (BTCTS) to evaluate formaldehyde removal efficiency. N-doped GQDs, a novel nanomaterial, demonstrated exceptional formaldehyde decomposition efficacy under LED visible light. These N-GQDs were synthesized via a microwave-assisted method and characterized by XRD, HR-TEM, XPS, and UV–Vis spectroscopy.</div><div>Five formaldehyde concentrations, 8 to 30 times the Taiwanese EPA's 0.08 ppm standard, were used to assess N-doped GQDs' performance across varying exposure levels. The impact of light spectrum on degradation was analyzed using four common indoor light sources. Results consistently showed N-doped GQDs effectively reducing formaldehyde concentrations under all tested conditions. Blue light (400–500 nm) yielded the highest degradation efficiency due to its matching excitation wavelength with N-GQDs. The photocatalytic process followed a pseudo-second-order kinetic model, suggesting a favorable reaction pathway. These findings highlight N-doped GQDs' potential as promising photocatalysts for indoor air purification. Integrating N-doped GQDs into building materials can significantly improve indoor air quality, thereby protecting occupant health and well-being.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"176 ","pages":"Article 106262"},"PeriodicalIF":6.3,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145044606","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}

引用次数: 0

Machine learning-based prediction and optimization of effective removal of tetracycline from wastewater using magnetic MoS2/polyglucosamine/β-cyclodextrin nanocomposite 磁性二硫化钼/聚葡萄糖胺/β-环糊精纳米复合材料对废水中四环素有效去除的机器学习预测与优化

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-07-30 DOI: 10.1016/j.jtice.2025.106315

Amir Sheikhmohammadi , Alieh Rezagholizade-shirvan , Hossein Azarpira , Mahmood Yousefi , Fatemeh Rezaee

{"title":"Machine learning-based prediction and optimization of effective removal of tetracycline from wastewater using magnetic MoS2/polyglucosamine/β-cyclodextrin nanocomposite","authors":"Amir Sheikhmohammadi , Alieh Rezagholizade-shirvan , Hossein Azarpira , Mahmood Yousefi , Fatemeh Rezaee","doi":"10.1016/j.jtice.2025.106315","DOIUrl":"10.1016/j.jtice.2025.106315","url":null,"abstract":"<div><h3>Background</h3><div>The growing amount of tetracycline (TC) antibiotics in wastewater has given a warrant to major response due to the need of efficient removal strategies, which this research presents on the application of a magnetic MoS2 /polyglucosamine/ <strong>β</strong>_cyclodextrin (MPCN) composite nanocomposite as a quick and effective adsorption agent TC, and model the process via machine-learning sequence modelling.</div></div><div><h3>Methods</h3><div>It based the model formulation on two machine learning algorithms Lasso Regression (LR) and Polynomial Regression (PR) in predicting removal efficiency, using all essential key operational parameters to include pH (X<sub>1</sub>), initial TC concentration (X<sub>2</sub>), contact time (X<sub>3</sub>), and adsorbent dosage (X<sub>4</sub>). Particle Swarm Optimization (PSO) optimized work conditions (pH = 7, concentration = 1 mg <em>L</em><sup>−1</sup>, contact time = 90 min, dosage = 1 g <em>L</em><sup>−1</sup>) to improve model performance and accuracy.</div></div><div><h3>Significant Findings</h3><div>Maximum removal efficiency reached 94.7 %. The high performance of the multinomial regression model on the training data was clearly evident. Consequently, with regard to the training data, the model fitted very well and as a result R<sup>2</sup> and MAE were 0.91 and 2.85 % respectively. In addition, the high overfitting of the test data compared to the training data with an RMSE value of 6.23 % was a strong reason that the model performed much better on the training data. LR training accuracy was higher than PR in generalization (R<sup>2</sup> = 0.85, MAE = 3.42 %), and RMSE was lower by 18.3 % across the models. PSO had an improved accuracy (Average Error Reduction) when it came to modeling in practical application as compared to PR and LR.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"176 ","pages":"Article 106315"},"PeriodicalIF":6.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723014","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}

引用次数: 0

Developing ecological-zeolites from industrial waste glass and sandblasting waste for humidity control 利用工业玻璃废渣和喷砂废渣开发用于湿度控制的生态沸石

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-07-30 DOI: 10.1016/j.jtice.2025.106314

Ya-Wen Lin , Wei-Hao Lee , Kae-Long Lin

{"title":"Developing ecological-zeolites from industrial waste glass and sandblasting waste for humidity control","authors":"Ya-Wen Lin , Wei-Hao Lee , Kae-Long Lin","doi":"10.1016/j.jtice.2025.106314","DOIUrl":"10.1016/j.jtice.2025.106314","url":null,"abstract":"<div><h3>Background</h3><div>Zeolite materials are widely used for humidity control in industrial settings; however, conventional synthesis methods often lack scalability, efficiency, and environmental sustainability. This study developed an eco-friendly approach to synthesizing high-performance zeolites by repurposing industrial waste materials—LCD waste glass and sandblasting waste—as sources of raw silica and alumina.</div></div><div><h3>Methods</h3><div>Response surface modeling (RSM) with central composite design (CCD) was employed to optimize SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio, reaction temperature, and reaction time to enhance crystallinity, surface morphology, and moisture adsorption. The resulting materials were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM), with moisture-adsorption performance evaluated under standard conditions.</div></div><div><h3>Significant Findings</h3><div>Zeolites synthesized under optimal conditions exhibited a uniform mesoporous network (average pore diameter 12.54 nm), a high specific surface area (81.87 m<sup>2</sup>/g), and excellent crystallinity (88.23 %). They yielding an impressive adsorption capacity of 79.27 cm<sup>3</sup>/g STP and moisture uptake of 59.08 g/m<sup>2—</sup>>50 times greater than conventional methods. Analysis of variance (ANOVA) confirmed the reliability of the model, identifying reaction temperature as the factor with the most pronounced influence on crystallinity and adsorption performance. This study established a sustainable pathway for converting industrial waste into value-added zeolites with superior humidity-control properties, laying the groundwork for green manufacturing of advanced adsorbents across diverse industrial application.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"176 ","pages":"Article 106314"},"PeriodicalIF":6.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723015","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}

引用次数: 0

Boosting tetracycline degradation via synergistic photo-self-Fenton/peroxymonosulfate activation using sea-urchin-like iron-doped nickel phosphonate catalysts 海胆样铁掺杂磷酸镍催化剂光自fenton /过氧单硫酸盐协同活化促进四环素降解

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-07-29 DOI: 10.1016/j.jtice.2025.106311

Huage Lin , Mingyang Wei , Haitong Li , Teng Liu , Weinan Xing

{"title":"Boosting tetracycline degradation via synergistic photo-self-Fenton/peroxymonosulfate activation using sea-urchin-like iron-doped nickel phosphonate catalysts","authors":"Huage Lin , Mingyang Wei , Haitong Li , Teng Liu , Weinan Xing","doi":"10.1016/j.jtice.2025.106311","DOIUrl":"10.1016/j.jtice.2025.106311","url":null,"abstract":"<div><h3>Background</h3><div>Transition metal phosphonates have demonstrated significant potential in catalysis due to their versatile coordination configurations and tunable structural frameworks. However, their direct application in photo-self-Fenton and peroxymonosulfate activation systems for organic pollutant degradation has rarely been explored.</div></div><div><h3>Methods</h3><div>In this study, a novel three-dimensional (3D) sea-urchin-like iron-doped nickel phosphonate (NiFeP2) was synthesized and employed as a catalyst in a photo-self-Fenton system for the efficient degradation of tetracycline (TC). Characterization revealed that the hierarchical architecture of NiFeP2 not only enhances light absorption and exposes abundant active sites but also facilitates synergistic peroxymonosulfate activation and photo-self-Fenton reactions, thereby improving catalytic performance.</div></div><div><h3>Significant findings</h3><div>Under optimized conditions, NiFeP2 achieved an apparent reaction rate constant (k<sub>obs</sub>) of 0.0589 min⁻¹ for TC degradation, demonstrating superior pollutant removal efficiency. The synthesized NiFeP2 photocatalyst exhibited excellent recyclability and maintained stable photocatalytic performance over multiple cycles, demonstrating its promising suitability for real-world wastewater purification applications. This work presents an effective photo-self-Fenton system based on NiFeP2, offering a promising strategy for the remediation of refractory organic pollutants in wastewater treatment.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"176 ","pages":"Article 106311"},"PeriodicalIF":6.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144720848","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}

引用次数: 0

Electrodeposition of stacked CFZN metallic oxide nanosheets as high-performance bifunctional electrocatalyst for HER and supercapacitor 电沉积叠层CFZN金属氧化物纳米片作为HER和超级电容器的高性能双功能电催化剂

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-07-27 DOI: 10.1016/j.jtice.2025.106299

Chou-Yi Hsu , Karrar Hassan Thamir , Zainab Ahmed Rejab , Hayder A. Abbood , Amit Ved , Shaxnoza Saydaxmetova , Uday Raheja , A.M.A. Mohamed , Hamad M. Alkahtani , Devendra Pratap Rao

{"title":"Electrodeposition of stacked CFZN metallic oxide nanosheets as high-performance bifunctional electrocatalyst for HER and supercapacitor","authors":"Chou-Yi Hsu , Karrar Hassan Thamir , Zainab Ahmed Rejab , Hayder A. Abbood , Amit Ved , Shaxnoza Saydaxmetova , Uday Raheja , A.M.A. Mohamed , Hamad M. Alkahtani , Devendra Pratap Rao","doi":"10.1016/j.jtice.2025.106299","DOIUrl":"10.1016/j.jtice.2025.106299","url":null,"abstract":"<div><h3>Background</h3><div>Electrocatalytic water splitting and supercapacitor technologies are vital for sustainable energy storage and conversion, providing effective alternatives to fossil fuels in addressing global warming. To advance eco-friendly electrochemical devices, it is essential to develop highly efficient and durable electrocatalysts, focusing on simple and controllable fabrication methods.</div></div><div><h3>Methods</h3><div>In this study, we synthesized stacked CuO/CuFe₂O₄/Zn catalysts on a 3D-Ni substrate, termed CFZN, using a simple electrodeposition and trapping strategy. These electrodes aim to improve the activity and long-term stability of supercapacitors (SCs) and the hydrogen evolution reaction (HER). The CFZN nanosheets electrode achieved a remarkable capacitance of 258 F g⁻¹ at 0.5 A g⁻¹ in a two-electrode system.</div></div><div><h3>Significant Findings</h3><div>The SC fabricated with these nanosheets presented an energy density of 14.52 Wh kg⁻¹ and a capacitance retention of 87.11 %. The CFZN electrocatalyst exhibited impressive performance with overpotentials of just 40 mV and Tafel slope values of 53 mV dec⁻¹ for HER in an alkaline environment. Additionally, density functional theory (DFT) calculations provided insights into the electronic structure through density of states (DOS) analysis and evaluated the Gibbs free energy of intermediate hydrogen adsorption. This theoretical analysis reinforces the material's potential for high-performance electrochemical applications.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"176 ","pages":"Article 106299"},"PeriodicalIF":5.5,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713393","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}

引用次数: 0

A multirate gated variational triple-latent-variable model for monitoring industrial data with heterogeneous sampling rates 一种多速率门控变分三潜变量模型，用于监测具有异质采样率的工业数据

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-07-26 DOI: 10.1016/j.jtice.2025.106289

Ze Ying , Yuqing Chang , Jie Zhang , Fuli Wang

{"title":"A multirate gated variational triple-latent-variable model for monitoring industrial data with heterogeneous sampling rates","authors":"Ze Ying , Yuqing Chang , Jie Zhang , Fuli Wang","doi":"10.1016/j.jtice.2025.106289","DOIUrl":"10.1016/j.jtice.2025.106289","url":null,"abstract":"<div><h3>Background</h3><div>Industrial process monitoring frequently involves the analysis of multivariate time-series data collected at heterogeneous sampling rates, presenting substantial challenges for accurate fault detection and feature extraction.</div></div><div><h3>Methods</h3><div>To address these issues, we propose a multirate gated variational triple-latent-variable (MG-VTLV) model that effectively captures nonlinear dynamic dependencies among variables sampled at various rates. The MG-VTLV model is built upon the variational autoencoder framework and incorporates three mutually independent latent variables—quality-relevant, quality-irrelevant, and process-irrelevant—to characterize and disentangle multi-level correlations. A multirate gating unit (MRGU) is embedded in both the encoder and decoder, allowing the model to adaptively adjust its parameters based on real-time data availability and enabling robust dynamic feature extraction under asynchronous sampling conditions.</div></div><div><h3>Results</h3><div>Experimental evaluations using both the simulated Tennessee Eastman platform and a real-world coal-fired power plant demonstrate that MG-VTLV outperforms existing methods in terms of fault detection accuracy and robustness, particularly under conditions of limited or imbalanced sampling.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"176 ","pages":"Article 106289"},"PeriodicalIF":5.5,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711090","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}

引用次数: 0

Synergistic adsorption-reduction mechanism of magnetic Fe3O4@Ti3AlC2 composites for high-efficiency uranium (VI) remediation in aqueous systems 磁性Fe3O4@Ti3AlC2复合材料对水中铀（VI）高效修复的协同吸附-还原机理

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-07-26 DOI: 10.1016/j.jtice.2025.106316

Yinhua Wang , Rui Huang , Yixing Wang , Yixin Pan

{"title":"Synergistic adsorption-reduction mechanism of magnetic Fe3O4@Ti3AlC2 composites for high-efficiency uranium (VI) remediation in aqueous systems","authors":"Yinhua Wang , Rui Huang , Yixing Wang , Yixin Pan","doi":"10.1016/j.jtice.2025.106316","DOIUrl":"10.1016/j.jtice.2025.106316","url":null,"abstract":"<div><h3>Background</h3><div>Uranium(VI) contamination poses severe environmental and health risks due to its high mobility and toxicity. Existing remediation strategies face challenges in efficiency and scalability. This study addresses these limitations by developing a magnetic Fe<sub>3</sub>O<sub>4</sub>@Ti<sub>3</sub>AlC<sub>2</sub> composite, leveraging synergistic adsorption-reduction mechanisms for effective U(VI) removal.</div></div><div><h3>Methods</h3><div>The composite was synthesized via co-precipitation, integrating Fe<sub>3</sub>O<sub>4</sub> nanoparticles onto Ti<sub>3</sub>AlC<sub>2</sub> substrates. Batch adsorption experiments evaluated U(VI) removal efficiency under varied pH, temperature, and coexisting ion conditions. Material characterization employed SEM, TEM, XRD, FTIR, XPS, and BET analysis to elucidate structural and mechanistic properties.</div></div><div><h3>Significant Findings</h3><div>Optimal adsorption occurred at pH 7 with a maximum capacity of 151.70 mg/g, driven by chemisorption and multilayer adsorption on heterogeneous surfaces, as confirmed by pseudo-second-order kinetics and Freundlich isotherm models. Mechanistic analyses revealed U(VI) immobilization through redox reactions (partial reduction to U(IV)) and complexation with surface functional groups (e.g., Ti–O, <em>C</em> = <em>O</em>). The composite demonstrated rapid magnetic separation, recyclability, and compatibility with natural groundwater pH, eliminating the need for rigorous pH adjustment. Notably, coexisting Cu<sup>2+</sup> enhanced adsorption, while Pb<sup>2+</sup> and organic macromolecules inhibited performance. These findings establish Fe<sub>3</sub>O<sub>4</sub>@Ti<sub>3</sub>AlC<sub>2</sub> as a sustainable, high-efficiency adsorbent for uranium remediation, offering scalable applications in wastewater treatment and environmental restoration.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"176 ","pages":"Article 106316"},"PeriodicalIF":5.5,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711092","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}

引用次数: 0