Journal of the Taiwan Institute of Chemical Engineers最新文献_第8页

Application and mechanism of 1-thioglycerol in separation of chalcopyrite and molybdenite 1-硫甘油酯在黄铜矿和辉钼矿分离中的应用及其机理

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-26 DOI: 10.1016/j.jtice.2025.106365

Yunxiang Du , Zhuoyue Lan , Wanting Yang , Xiong Li , Yunchuan Li , Hang Li , Zhiyu Pu , Letian Hu

{"title":"Application and mechanism of 1-thioglycerol in separation of chalcopyrite and molybdenite","authors":"Yunxiang Du , Zhuoyue Lan , Wanting Yang , Xiong Li , Yunchuan Li , Hang Li , Zhiyu Pu , Letian Hu","doi":"10.1016/j.jtice.2025.106365","DOIUrl":"10.1016/j.jtice.2025.106365","url":null,"abstract":"<div><h3>Background</h3><div>Conventional chalcopyrite depressants face environmental and selectivity challenges in copper-molybdenum separation. This study introduces 1-thioglycerol (1-TG), an eco-friendly organic depressant, demonstrating exceptional selectivity for chalcopyrite.</div></div><div><h3>Methods</h3><div>The depression performance of 1-TG was evaluated through flotation experiments. Its selective adsorption mechanism was elucidated using surface characterization techniques, including contact angle, SEM-EDS, LEIS, FTIR, XPS and molecular dynamics simulations.</div></div><div><h3>Significant findings</h3><div>1-TG achieved efficient separation of molybdenite from chalcopyrite. For the synthetic mixed ore at pH 5 with 25 mg/L 1-TG, recoveries of Cu and Mo were 6.01% and 89.53%. Mechanistic studies demonstrated that 1-TG selectively chemisorbs on chalcopyrite surfaces through coordinating with metal sites, effectively masking adsorption sites and reducing surface hydrophobicity. The -SH groups in 1-TG promoted selective adsorption, as confirmed by surface analyses. This non-toxic depressant functions effectively at low dosages, offering a sustainable alternative to conventional toxic inhibitors like cyanides. The findings provide fundamental insights into green reagent design and advance eco-friendly strategies for sulfide mineral separation, addressing critical environmental and efficiency challenges in copper-molybdenum processing.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106365"},"PeriodicalIF":6.3,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904254","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

Activated carbon nanodots derived from date palm and oil palm trees for designing effective capacitive deionization electrodes 从枣椰树和油棕树中提取的活性炭纳米点用于设计有效的电容去离子电极

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-26 DOI: 10.1016/j.jtice.2025.106375

Numan Salah , Humair Hussain , Mohammad Omaish Ansari , Suriani Abu Bakar

{"title":"Activated carbon nanodots derived from date palm and oil palm trees for designing effective capacitive deionization electrodes","authors":"Numan Salah , Humair Hussain , Mohammad Omaish Ansari , Suriani Abu Bakar","doi":"10.1016/j.jtice.2025.106375","DOIUrl":"10.1016/j.jtice.2025.106375","url":null,"abstract":"<div><h3>Background</h3><div>Capacitive deionization (CDI) offers a promising solution for alleviating global water scarcity by desalinating brackish water. This study investigates the efficiency of activated carbon nanodots (CNDs) derived from date palm tree (DPT) and oil palm tree (OPT) biomass for designing CDI electrodes.</div></div><div><h3>Methods</h3><div>These CNDs were produced by the high energy ball milling technique and then chemically activated to achieve high surface area. Their attractive properties mainly their graphitic content, hierarchical pore structure, high crystalline nature and high surface area (945 and 750 m²/g for CNDs of DPT and OPT, respectively) are remarkable. Additionally, their high specific capacitances of 291 F/g for CNDs of DPT and 175 F/g for those of OPT are useful for CDI electrodes.</div></div><div><h3>Significant Findings</h3><div>The obtained results show that CNDs of DPT's have superior CDI performance than OPT, achieving salt adsorption capacities of 15–110 mg/g at various concentrations of NaCl within the range 500–5000 ppm with better chemical stability. The average salt adsorption rates and current efficiency of the CNDs of DPT also surpassed those of OPT. These findings underscore the potential of DPT activated CNDs as efficient and sustainable CDI electrodes for brackish water desalination.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106375"},"PeriodicalIF":6.3,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144896460","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

Heterointerface engineering of Cr2AlC@SiO2 composites for synergistically enhanced microwave absorption and high-temperature oxidation resistance 协同增强微波吸收和高温抗氧化Cr2AlC@SiO2复合材料的异质界面工程

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-26 DOI: 10.1016/j.jtice.2025.106372

Mingxuan Wang, Jingyu Gao, Yang Guo

{"title":"Heterointerface engineering of Cr2AlC@SiO2 composites for synergistically enhanced microwave absorption and high-temperature oxidation resistance","authors":"Mingxuan Wang, Jingyu Gao, Yang Guo","doi":"10.1016/j.jtice.2025.106372","DOIUrl":"10.1016/j.jtice.2025.106372","url":null,"abstract":"<div><h3>Background</h3><div>To meet the demand for electromagnetic stealth and reliable service in high-temperature components, developing materials integrating excellent microwave absorption performance (MAP) with high-temperature stability is crucial. Heterointerface engineering serves as a significant approach for enhancing such materials.</div></div><div><h3>Methods</h3><div>Herein, core-shell structured Cr<sub>2</sub>AlC@SiO<sub>2</sub> composites were constructed via the Stöber process, showing enhanced high-temperature durability and electromagnetic wave attenuation capabilities. The introduced SiO<sub>2</sub> coating elevated the oxidation onset temperature of Cr<sub>2</sub>AlC by 30.8 % and reduced the high-temperature oxidation activation energy (<em>E<sub>a</sub></em>) by up to 48.4 % by suppressing substrate <em>E<sub>a</sub></em> and reducing the oxygen-exposed surface area. At a thickness of 2.0 mm, the Cr<sub>2</sub>AlC@SiO<sub>2</sub> composite exhibited superior MAP with a minimum reflection loss (<em>RL<sub>min</sub></em>) of -15.11 dB and an effective absorption bandwidth (<em>EAB, RL</em> < -10 dB) of 2.73 GHz. Compared with pristine Cr<sub>2</sub>AlC, these values represent a 23.0 % reduction in <em>RL<sub>min</sub></em> and a 99.3 % expansion in <em>EAB</em>.</div></div><div><h3>Significant findings</h3><div>The performance improvement stems primarily from the synergistic effects of dielectric-regulated impedance matching mediated by the SiO<sub>2</sub> layer, coupled with the heterointerface establishing a multi-scale scattering network that collectively enhances electromagnetic energy dissipation. This research provides a novel design paradigm for developing advanced microwave absorbers integrating exceptional thermal stability and broadband absorption performance.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106372"},"PeriodicalIF":6.3,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144904239","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

Sustainable synthesis of V2O5:Sm3+ nanoparticles for malachite green photodegradation and high-efficiency supercapacitors 孔雀石绿光降解高效超级电容器用V2O5:Sm3+纳米粒子的可持续合成

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-25 DOI: 10.1016/j.jtice.2025.106341

C.U. Charitha Ganesh , B.R. Radha Krushna , N. Navya , S.C. Sharma , V. Vickneshwaran , K. Thangamani , S.S. Mohapatra , Subhashree Ray , K. Manjunatha , Sheng Yun Wu , Shih-Lung Yu , Jagadish Kumar Galivarapu , G. Ramakrishna , R. Arunakumar , H. Nagabhushana , Bandar Ali Al-Asbahi

{"title":"Sustainable synthesis of V2O5:Sm3+ nanoparticles for malachite green photodegradation and high-efficiency supercapacitors","authors":"C.U. Charitha Ganesh , B.R. Radha Krushna , N. Navya , S.C. Sharma , V. Vickneshwaran , K. Thangamani , S.S. Mohapatra , Subhashree Ray , K. Manjunatha , Sheng Yun Wu , Shih-Lung Yu , Jagadish Kumar Galivarapu , G. Ramakrishna , R. Arunakumar , H. Nagabhushana , Bandar Ali Al-Asbahi","doi":"10.1016/j.jtice.2025.106341","DOIUrl":"10.1016/j.jtice.2025.106341","url":null,"abstract":"<div><h3>Background</h3><div>The development of eco-friendly and efficient nanomaterials for environmental remediation and energy storage is crucial for sustainable technology. Vanadium pentoxide (V₂O₅) is a promising material due to its excellent optical, photocatalytic, and electrochemical properties. However, its performance can be further enhanced through strategic doping and green synthesis approaches.</div></div><div><h3>Methods</h3><div>A bio-fueled solution combustion method was used to synthesize undoped and samarium-doped V₂O₅ (V₂O₅:Sm³⁺) nanoparticles (NPs) utilizing <em>Ocimum tenuiflorum</em> leaf extract as a sustainable fuel. Structural, morphological, and optical properties were analyzed using XRD, FE-SEM, TEM, EDAX, XPS, and UV–Vis spectroscopy.</div></div><div><h3>Significant findings</h3><div>XRD confirmed orthorhombic V₂O₅ with Sm³⁺ substitution. FE-SEM and TEM showed a transition from nanosheets to hierarchical flower-like structures at higher doping levels. The bandgap narrowed from 2.72 eV to 2.16 eV, enhancing visible-light absorption. V₂O₅:9Sm³⁺ NPs exhibited 96.51 % photocatalytic degradation of Malachite Green within 100 min under sunlight and excellent recyclability. Phytotoxicity tests confirmed environmental safety, while electrochemical studies revealed superior supercapacitor performance with a high specific capacitance of 332.28 F/g and 93 % retention after 5000 cycles. The enhanced properties are attributed to Sm³⁺ induced structural and electronic modifications, demonstrating the potential of bio-synthesized V₂O₅:Sm³⁺ for sustainable applications.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106341"},"PeriodicalIF":6.3,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144896459","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

Removal of Mn(VII) and total Mn from Mn(VII)-containing aqueous solution by multifunctional flocculant modified polyacrylamide 多功能絮凝剂改性聚丙烯酰胺对含锰水溶液中锰（VII）和总锰的去除

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-25 DOI: 10.1016/j.jtice.2025.106370

Xin Wang, Gang Wang, Yapin Yan, Meng Duan, Lingling Li, Jinling Ma

{"title":"Removal of Mn(VII) and total Mn from Mn(VII)-containing aqueous solution by multifunctional flocculant modified polyacrylamide","authors":"Xin Wang, Gang Wang, Yapin Yan, Meng Duan, Lingling Li, Jinling Ma","doi":"10.1016/j.jtice.2025.106370","DOIUrl":"10.1016/j.jtice.2025.106370","url":null,"abstract":"<div><h3>Background</h3><div>Mn(VII) wastewater is a serious hazard to the environment; however, few existing methods can remove Mn(VII) from wastewater. In addition, unreasonable treatment methods can have a negative impact on the environment.</div></div><div><h3>Method</h3><div>The use of mercaptoacetyl aminomethy-polyacrylamide (MAAPAM) as a multifunctional flocculant for removing Mn(VII) and total Mn from water samples was investigated in this study. The effects of various factors, including pH, initial Mn(VII) concentration, turbidity, and coexisting ions including K<sup>+</sup>, Na<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup>, Fe<sup>2+</sup>, Cl<sup>-</sup>, and SO<sub>4</sub><sup>2-</sup>, on removal efficiency was evaluated. The flocculation mechanism was elucidated through SEM and XPS analyses.</div></div><div><h3>Significant Findings</h3><div>Systematic testing revealed optimal removal efficiencies at pH levels of 3 and 9, achieving 100% removal efficiency for Mn(VII) and 97.93% for total Mn at an initial concentration of 25 mg/L. Other factors, such as initial Mn(VII) concentration, turbidity, and most coexisting ions, had negligible effects on removal efficiency, with the exception of Fe<sup>2+</sup>. Specifically, Fe<sup>2+</sup> enhanced Mn(VII) removal but decreased total Mn removal due to redox interactions. Mn(VII) removal involves redox reactions, chelation, flocculation, and precipitation processes. Stable complexes with Mn(IV) were formed by the sulfydryl and amino groups on MAAPAM, while adsorption bridging facilitated the aggregation of MAAPAM-Mn flocs.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106370"},"PeriodicalIF":6.3,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144893366","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

Direct reduction of copper slag with H2 and CO: Effects of CaCO₃ on reduction kinetics H2和CO直接还原铜渣：CaCO₃对还原动力学的影响

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-23 DOI: 10.1016/j.jtice.2025.106371

Shikang Li, Zehao Wu, Lizhou Yang, Xiaolei Zhou

{"title":"Direct reduction of copper slag with H2 and CO: Effects of CaCO₃ on reduction kinetics","authors":"Shikang Li, Zehao Wu, Lizhou Yang, Xiaolei Zhou","doi":"10.1016/j.jtice.2025.106371","DOIUrl":"10.1016/j.jtice.2025.106371","url":null,"abstract":"<div><h3>Background</h3><div>The choice of reductants and additives as well as the reduction process is critical to reduce energy consumption, improve quality and reduce costs. As the production capacity of copper slag has surged in modern industry, the efficient utilization of iron resources contained within it has emerged as a prominent research focus.</div></div><div><h3>Methods</h3><div>In this study, copper slag was used as the object and carbon monoxide and hydrogen as the reducing agents, combined with kinetic mathematical modeling, focusing on the advantages of hydrogen reduction of copper slag and the improvement of reduction kinetic conditions by CaCO<sub>3</sub>.</div></div><div><h3>Significant Findings</h3><div>The results of the study show that hydrogen reduction is more efficient when copper slag briquettes are directly reduced with H<sub>2</sub> and CO; Temperature and CaCO<sub>3</sub> had a significant effect on the reduction rate and degree of reduction of copper slag briquettes; In addition, the phase kinetic analysis of copper slag briquettes reveals that the apparent activation energy change rule is E<sub>phase 1</sub> < E<sub>phase 2</sub> > E<sub>phase 3</sub> when CO reduces copper slag; And when H<sub>2</sub> reduces the copper slag, the apparent activation energy change rule is E<sub>phase 1</sub> < E<sub>phase 2</sub> < E<sub>phase 3</sub>. This indicates that as the reaction proceeds, the product layer inside the copper slag becomes dense, and the product layer is even denser due to the higher reduction of the endpoint in the H<sub>2</sub> atmosphere, resulting in an increase in the internal diffusion of the gas and a continuous increase in the apparent activation energy. The apparent activation energy of gas-reduced copper slag increased significantly with the addition of CaCO<sub>3</sub>.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106371"},"PeriodicalIF":6.3,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144892332","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

N-doping biochar supported zero-valent iron for the activation of peroxymonosulfate to remove trichloroethylene in groundwater: Surface confinement effects and application efficiency n掺杂生物炭负载零价铁活化过氧单硫酸盐去除地下水中的三氯乙烯：表面约束效果和应用效率

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-23 DOI: 10.1016/j.jtice.2025.106362

Chen Zhang , Si-qi Gu , Yang Zhang , Ya-nan Shang , Tian-tian Bai , Yong-wei Zhang , Zheng Yu , Meng-lin Zhang , Xiao-qiang Cao

{"title":"N-doping biochar supported zero-valent iron for the activation of peroxymonosulfate to remove trichloroethylene in groundwater: Surface confinement effects and application efficiency","authors":"Chen Zhang , Si-qi Gu , Yang Zhang , Ya-nan Shang , Tian-tian Bai , Yong-wei Zhang , Zheng Yu , Meng-lin Zhang , Xiao-qiang Cao","doi":"10.1016/j.jtice.2025.106362","DOIUrl":"10.1016/j.jtice.2025.106362","url":null,"abstract":"<div><h3>Background</h3><div>The application of TCE posed significant challenges for groundwater remediation. Current remediation strategies, including advanced oxidation processes (AOPs), face challenges such as low catalytic efficiency, interference from natural organic matter (NOM), and scalability limitations.</div></div><div><h3>Methods</h3><div>This study systematically investigated the innovative application of an N-doped biochar-supported zero-valent iron (BC-nZVI) composite for the activation of peroxymonosulfate (PMS) to remove trichloroethylene (TCE). The BC-nZVI/PMS system provided an understanding of the synergistic adsorption and catalytic mechanisms.</div></div><div><h3>Significant</h3><div>It achieved complete TCE degradation within 60 min, exhibiting enhanced catalytic efficiency and remarkable stability over five consecutive cycles. Molecular electrostatic potential (ESP) analysis and adsorption energy calculations indicated that N-doping sites and nZVI sites significantly enhanced PMS and TCE adsorption, creating surface confinement effects that facilitated the catalytic process. Moreover, the system effectively mitigated the impact of natural organic matter (NOM) on TCE removal. Further analysis confirmed the efficient generation of reactive oxygen species responsible for TCE degradation. The bench-scale experiment and multiphase numerical simulation model highlighted the potential for large-scale application of the system in groundwater treatment.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106362"},"PeriodicalIF":6.3,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144891895","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

Green corrosion inhibition: Tobacco stem extract and KI on steel in H₃PO₄ – experimental, modeling, and theoretical insights 绿色缓蚀：烟草茎提取物和KI对H₃PO₄钢的缓蚀作用——实验、建模和理论见解

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-23 DOI: 10.1016/j.jtice.2025.106366

Pengfei Du , Xianghong Li , Yujie Qiang , Yikun Xie , Shuduan Deng

{"title":"Green corrosion inhibition: Tobacco stem extract and KI on steel in H₃PO₄ – experimental, modeling, and theoretical insights","authors":"Pengfei Du , Xianghong Li , Yujie Qiang , Yikun Xie , Shuduan Deng","doi":"10.1016/j.jtice.2025.106366","DOIUrl":"10.1016/j.jtice.2025.106366","url":null,"abstract":"<div><h3>Background</h3><div>Tobacco stem extract (TSE) has shown promise as a corrosion inhibitor, but its time-dependent behavior and synergistic effects with potassium iodide (KI) in phosphoric acid remain underexplored. Given the tobacco stem waste in China, further research on the corrosion inhibition performance of TSE is crucial. This is particularly important for phosphoric acid systems, where the complex dissociation behavior and film instability pose distinct challenges for corrosion control.</div></div><div><h3>Methods</h3><div>The corrosion inhibition of TSE in combination with KI on cold rolled steel (CRS) in 5.0 M H₃PO₄ was evaluated using weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). Surface morphology was analyzed using SEM and AFM, while TOF-SIMS and XPS were used to examine the chemical composition. LC-MS identified the active components in TSE, and quantum calculations, along with molecular dynamics simulations, provided insight into the adsorption mechanisms.</div></div><div><h3>Significant Findings</h3><div>Weight loss analysis demonstrated 92.9 % inhibition efficiency for TSE/KI at 20 °C. Electrochemical tests indicated that TSE/KI suppresses both anodic and cathodic reactions, forming a stable protective film. Surface characterization confirmed the inhibition effects. Key adsorption sites on TSE include nitrogen atoms and conjugated double bonds. These findings offer a deeper understanding of the synergistic mechanism between TSE and KI, providing valuable guidance for the development of eco-friendly, plant-based corrosion inhibitors. A novel mathematical model based on capacitance evolution was constructed using MATLAB to assess time-dependent electrochemical behavior. These findings provide mechanistic and predictive insights into the use of TSE/KI as a sustainable corrosion inhibitor in phosphoric acid environments.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106366"},"PeriodicalIF":6.3,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144889618","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

Efficient degradation of methylene blue using hydrothermally synthesized V2O5 nanosheets: An innovative approach for sustainable wastewater treatment 水热合成V2O5纳米片高效降解亚甲基蓝：一种可持续废水处理的创新方法

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-22 DOI: 10.1016/j.jtice.2025.106324

Duc La , Matteo Tonezzer , Nguyet Thi To , Duy Van Lai , D. Nguyen , Sung Su Kim , D. Duc Nguyen

{"title":"Efficient degradation of methylene blue using hydrothermally synthesized V2O5 nanosheets: An innovative approach for sustainable wastewater treatment","authors":"Duc La , Matteo Tonezzer , Nguyet Thi To , Duy Van Lai , D. Nguyen , Sung Su Kim , D. Duc Nguyen","doi":"10.1016/j.jtice.2025.106324","DOIUrl":"10.1016/j.jtice.2025.106324","url":null,"abstract":"<div><h3>Background</h3><div>The widespread use of methylene blue (MB) dye in industrial applications has resulted in severe water pollution, posing environmental and public health challenges. Conventional wastewater treatment methods often fall short in effectively removing organic dyes, necessitating the development of advanced photocatalytic solutions.</div></div><div><h3>Methods</h3><div>Vanadium pentoxide (V<sub>2</sub>O<sub>5</sub>) nanosheets were synthesized via a hydrothermal method using the surfactant Pluronic P123 to minimize agglomeration. The nanosheets demonstrated enhanced photocatalytic properties due to their increased surface area and reduced electron-hole recombination. Under compact fluorescent lamp illumination, their ability to degrade MB dye was systematically evaluated, achieving a degradation efficiency of 97.96 % within 150 min.</div></div><div><h3>Significant findings</h3><div>The superior catalytic activity of V<sub>2</sub>O<sub>5</sub> nanosheets was attributed to their porous structure and oxalic acid-induced thinner morphology, which facilitated enhanced H⁺ ion interaction. These nanosheets offer a promising approach for visible-light-driven dye degradation, providing a sustainable and efficient solution for wastewater treatment and environmental remediation.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106324"},"PeriodicalIF":6.3,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886928","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

Evaluation of the improvement of the MMLM2550 vertical roller mill performance brought by multi-objective optimization and CFD-DEM simulation 多目标优化与CFD-DEM仿真对MMLM2550立辊磨性能改善的评价

IF 6.3 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-08-22 DOI: 10.1016/j.jtice.2025.106359

Hailiang Hu, Yiming Li, Guiqiu Song

{"title":"Evaluation of the improvement of the MMLM2550 vertical roller mill performance brought by multi-objective optimization and CFD-DEM simulation","authors":"Hailiang Hu, Yiming Li, Guiqiu Song","doi":"10.1016/j.jtice.2025.106359","DOIUrl":"10.1016/j.jtice.2025.106359","url":null,"abstract":"<div><h3>Background</h3><div>The structure of a vertical roller mill (VRM) significantly affects the distribution of the flow field and the separation performance. However, a few studies on the middle shell body structure and outlet size exist.</div></div><div><h3>Method</h3><div>This paper studies the MMLM2550 VRM. It employs the Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) bidirectional coupling numerical simulation to optimize the geometric structure of the mill, in order to evaluate the impacts of the height, diameter, and outlet diameter of the middle shell body on its performance, which allows to identify critical design variables. The Back Propagation-Non-Dominated Sorting Genetic Algorithm-II (BP-NSGA-II) is used for multi-objective optimization, so as to develop a model for the prediction of the separation efficiency and the fineness of coal powder, yielding the Pareto solution. The obtained results demonstrate that the adjustment of the mill structure allows to optimize its internal flow field distribution.</div></div><div><h3>Significant findings</h3><div>By prioritizing the efficiency of the collected coal powder output from the mill, its quality is significantly improved, which results in increasing its fineness by 12.19 %. The results obtained in this study provide valuable insights into the structures of VRM and serve as a reference for enhancing its flow field and increasing its separation performance.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"178 ","pages":"Article 106359"},"PeriodicalIF":6.3,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144886929","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}

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