Journal of the Taiwan Institute of Chemical Engineers最新文献_第4页

Revisiting the softening and melting behavior of sinter under simulated blast furnace conditions: Part II – Characteristics of microstructure evolution and grain coarsening

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-12 DOI: 10.1016/j.jtice.2025.106066

Yu-ning Chiu , Kai-chun Chang , Wen-chien Tsai , Yu-jia Hu , Jia-shyan Shiau , Ke-miao Lu , Tsung-yen Huang , Shan-wen Du , Ping-chieh Cheng , Yi-chen Kuo , Ker-chang Hsieh , Hao-long Chen , Shih-kang Lin

{"title":"Revisiting the softening and melting behavior of sinter under simulated blast furnace conditions: Part II – Characteristics of microstructure evolution and grain coarsening","authors":"Yu-ning Chiu , Kai-chun Chang , Wen-chien Tsai , Yu-jia Hu , Jia-shyan Shiau , Ke-miao Lu , Tsung-yen Huang , Shan-wen Du , Ping-chieh Cheng , Yi-chen Kuo , Ker-chang Hsieh , Hao-long Chen , Shih-kang Lin","doi":"10.1016/j.jtice.2025.106066","DOIUrl":"10.1016/j.jtice.2025.106066","url":null,"abstract":"<div><h3>Background</h3><div>To enhance the mechanistic understanding of softening and melting (S&M) behaviors and their role in determining blast furnace (BF) permeability performance, studying macro- and microstructural evolution under high-fidelity yet not oversimplified BF environments is indispensable.</div></div><div><h3>Methods</h3><div>Building on Part I, this study establishes experimental conditions that faithfully reproduce BF environments. Leveraging these high-fidelity conditions, we investigate the macro- and microstructural evolution and grain size distribution of metallic Fe and FeO at five temperatures: 1150 °C, 1250 °C, 1330 °C, 1430 °C, and 1550 °C.</div></div><div><h3>Significant findings</h3><div>Key conclusions link microstructural evolution to softening, melting, and dripping behaviors. From 1150 °C to 1550 °C, Fe and FeO grains undergo significant coarsening, with Fe increasing from 0.5–6.0 µm to 3.5–15.0 µm and FeO from 0.7–6.17 µm to 2.1–9.7 µm by 1430 °C. A critical dripping threshold for FeO droplets (>9.5 µm) in sinter ore shows grain coarsening significantly affects dripping timing and behavior. Additionally, the high melting points of slag phases in sinter ore compared to pellets and lump ores limit FeO droplet formation, resulting in less pronounced dripping behavior. These findings emphasize the need to investigate grain coarsening to understand dripping mechanisms across various burden materials and the potential impact of grain size variations on permeability in conventional versus hydrogen-rich blast furnaces.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106066"},"PeriodicalIF":5.5,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143600940","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

Response surface methodology optimized co-pyrolysis of mixed date seeds and chicken bones for bio-oil production

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-12 DOI: 10.1016/j.jtice.2025.106070

Marwa H. Altamer , Amena F. Al-Omari , Duaa H. Altamer , Abdelrahman B. Fadhil

{"title":"Response surface methodology optimized co-pyrolysis of mixed date seeds and chicken bones for bio-oil production","authors":"Marwa H. Altamer , Amena F. Al-Omari , Duaa H. Altamer , Abdelrahman B. Fadhil","doi":"10.1016/j.jtice.2025.106070","DOIUrl":"10.1016/j.jtice.2025.106070","url":null,"abstract":"<div><h3>Background</h3><div>Co-pyrolysis of date seeds (DS) and chicken bone (CB) mixture in a fixed bed reactor to produce pyrolytic oil (PO). The process was adjusted using Central Composite Design (CCD) followed by Response surface methodology (RSM) to produce an optimal PO yield.</div></div><div><h3>Methods</h3><div>To evaluate the pattern and relation between the experimental responses and the process variables, the variables, including temperature (400 °C - 600 °C), feedstock particle size (0.15–0.35 mm), heating rate (10–50 °C/min), and time (40–80 min), were investigated.</div></div><div><h3>Significant Findings</h3><div>The extreme output of the PO was 65.11 % and was produced at 500 °C using a 0.25 mm particle size and a heating rate of 30 °C/min for 60 min. Quantifying the bio-oil (BO) by GC–MS analysis showed the BO consisted mostly of oxygenated hydrocarbons (73.16 %), including acids (64.16 %), aldehydes and ketone (4.45 %), esters (4.20 %), and alcohols (0.35 %). Other components included hydrocarbons (33.84 % (paraffin, 16.89 %; olefines, 16.3 %; and alkynes, 0.65 %)) and nitrogen compounds (5.79 %). In conclusion, the mixed DSCB can be used as a resource for pyrolysis and produce a complex mixture of acids, esters, and alkanes.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106070"},"PeriodicalIF":5.5,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143600937","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

Constructing asymmetric mixed matrix membrane with high permeance and antifouling performance by magnetic control of COF-coated Fe3O4 particles

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-11 DOI: 10.1016/j.jtice.2025.106080

Yuemin Guang, Ruochen Yuan, Bingjie Zhang, Dingqi Li, Ju Yang, Najun Liu, Yongheng Yin

{"title":"Constructing asymmetric mixed matrix membrane with high permeance and antifouling performance by magnetic control of COF-coated Fe3O4 particles","authors":"Yuemin Guang, Ruochen Yuan, Bingjie Zhang, Dingqi Li, Ju Yang, Najun Liu, Yongheng Yin","doi":"10.1016/j.jtice.2025.106080","DOIUrl":"10.1016/j.jtice.2025.106080","url":null,"abstract":"<div><h3>Background</h3><div>Nanofiltration membranes are widely used for treating dye wastewater, while two major challenges hinder their application: the trade-off between permeance and selectivity, and membrane fouling.</div></div><div><h3>Methods</h3><div>Covalent organic frameworks (COFs) can help membranes overcome the trade-off effect, and the combination of positively and negatively charged groups exhibit excellent antifouling properties. In this study, COF-coated Fe<sub>3</sub>O<sub>4</sub> particles are synthesized and functionalized with sulfonic acid groups, through magnetically induced surface segregation, a membrane with asymmetric structure is formed. The effects of modified particles on the membrane's structure are systematically investigated. Most importantly, the water permeance, dye rejection, and antifouling properties of as-prepared mixed matrix membranes are thoroughly evaluated.</div></div><div><h3>Significant Findings</h3><div>The magnetic-assisted method enriches more COFs containing both positively and negatively charged groups on the membrane surface, as a result, the prepared membranes exhibit outstanding performance in water permeance, dye removal and antifouling ability. For example, the P/Z-COF-5 membrane shows enhanced permeance from 65.2 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup> (polyethersulfone, PES) to 165.6 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup>, exhibits high rejection of 99.8 % for Eriochrome black T and 96.7 % for Congo red. In addition, the flux recovery ratio of P/Z-COF-5 membrane is 98.2 %, much higher than that of pristine PES (72.9 %).</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106080"},"PeriodicalIF":5.5,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594248","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

Sludge-derived biochar applied in peroxymonosulfate (PMS) activation: Regulation of active sites and synergistic production of reaction oxygen species

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-10 DOI: 10.1016/j.jtice.2025.106071

Jiawei Liu , Zilian Liu , Rongrong Miao , Yingjun Wang , Liang He , Huajing Zhou , Sheng Liang , Xin Lei , Xiaoyong Deng

{"title":"Sludge-derived biochar applied in peroxymonosulfate (PMS) activation: Regulation of active sites and synergistic production of reaction oxygen species","authors":"Jiawei Liu , Zilian Liu , Rongrong Miao , Yingjun Wang , Liang He , Huajing Zhou , Sheng Liang , Xin Lei , Xiaoyong Deng","doi":"10.1016/j.jtice.2025.106071","DOIUrl":"10.1016/j.jtice.2025.106071","url":null,"abstract":"<div><div>Sewage sludges and chlorophenols (e.g., 4-CP) generated from papermaking industries are polluting and hazardous. Nevertheless, the paper mill sludges possessed inherent iron and carbon components is expected to be converted into Fe/C-based peroxymonosulfate (PMS) activator for wastewater purification. In this study, the derived ferric-rich biochar materials paper sludge carbon (PSC) is synthesized via pyrolyzing paper mill sludge to activating PMS for 4-CP degradation in water matrix. The optimal PSC/PMS system exhibits about 100.00% 4-CP degradation efficiency and the kinetic constant reaches 0.1165 min<sup>-1</sup> while 66.82% of Cl<sup>-</sup> is shed owing to high mineralization efficiency. Species trapping experiments and electron paramagnetic resonance spectra analysis indicate that the <sup>1</sup>O<sub>2</sub> and O<sub>2</sub><sup>•−</sup> species dominate the 4-CP degradation. The high PMS decomposition and 4-CP degradation efficiency attribute to the Fe(II) and abundant defects. This study provides novel strategies for halogen removal and value-added utilization of paper mill sludge in environmental remediation.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106071"},"PeriodicalIF":5.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594273","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

Flower-like NiCo2S4 decorated by CdIn2S4 nanoparticles for enhanced photocatalytic hydrogen evolution activity

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-09 DOI: 10.1016/j.jtice.2025.106042

Yuan Liu , Mengchao Li , Kaiyue Sun, Xiaohui Ma, Liang Geng, Mei Dong, Hualei Zhou

{"title":"Flower-like NiCo2S4 decorated by CdIn2S4 nanoparticles for enhanced photocatalytic hydrogen evolution activity","authors":"Yuan Liu , Mengchao Li , Kaiyue Sun, Xiaohui Ma, Liang Geng, Mei Dong, Hualei Zhou","doi":"10.1016/j.jtice.2025.106042","DOIUrl":"10.1016/j.jtice.2025.106042","url":null,"abstract":"<div><h3>Background</h3><div>The rapid complexation of photogenerated carriers in sulphides has emerged as a significant challenge in optimizing photocatalytic hydrogen production.</div></div><div><h3>Methods</h3><div>Flower-like NiCo<sub>2</sub>S<sub>4</sub>/CdIn<sub>2</sub>S<sub>4</sub> (NCSCIS) microspheres were synthesized by hydrothermal treatment and in situ deposition method in this study. CdIn<sub>2</sub>S<sub>4</sub> nanoparticles were uniformly decorated on the surface of flower-like NiCo<sub>2</sub>S<sub>4</sub> microspheres assembled from nanotubes, forming multi-heterojunctions.</div></div><div><h3>Significant finding</h3><div>Benefited from the heterostructure, their visible-light photocatalytic activity for hydrogen evolution was notably enhanced compared with that of single CdIn<sub>2</sub>S<sub>4</sub>. Among them, the hydrogen evolution rate of optimal 15NCSCIS heterojunction composite is 43 times that of independent CdIn<sub>2</sub>S<sub>4</sub>. Demonstrated by various optical and electrochemical experiments, the heterojunction significantly promoted the separation of photoinduced electron-hole pairs, improved the hydrogen evolution activity, strengthened the visible-light absorption and reduced the electron transfer resistance, thus resulting in the enhancement of photocatalytic activity. The photocatalytic mechanism of Schottky junction was proposed based on their energy band potentials. This work would provide new insights into the design of inexpensive heterojunction photocatalysts with high photocatalytic activity.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106042"},"PeriodicalIF":5.5,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577543","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

High-performance electrochemical sensors with SnBi2O3/Graphene oxide nanocomposite for selective antibiotic detection

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-09 DOI: 10.1016/j.jtice.2025.106033

Krishnanpandi Alagumalai , Nandhini Munusamy , Shen Ming Chen , Alangadu Kothandan Vivekanandan , Shih-Hsun Chen , Mani Sivakumar , Seong-Cheol Kim , B. Prakash

{"title":"High-performance electrochemical sensors with SnBi2O3/Graphene oxide nanocomposite for selective antibiotic detection","authors":"Krishnanpandi Alagumalai , Nandhini Munusamy , Shen Ming Chen , Alangadu Kothandan Vivekanandan , Shih-Hsun Chen , Mani Sivakumar , Seong-Cheol Kim , B. Prakash","doi":"10.1016/j.jtice.2025.106033","DOIUrl":"10.1016/j.jtice.2025.106033","url":null,"abstract":"<div><h3>Background</h3><div>Environmental contaminants like nitrofurans (NF) can be detected using rapid, sensitive, and efficient monitoring techniques. However, ineffective detection systems delay responses, allowing contaminants to persist in the environment, increasing their toxicity, and causing long-term harm to ecosystems and human health. An alternative is the electrochemical method for NF detection, which is fast, cost-effective, and reliable.</div></div><div><h3>Methods</h3><div>We developed a low-cost, portable nanocomposite material, Sn-Bi₂O₃/GO, for the detection of NF, marking its first reported use. The crystallinity, functional groups, surface structure, and oxidation states of the materials were analyzed through various analytical and spectroscopic techniques.</div></div><div><h3>Significant findings</h3><div>SnBi₂O₃/GO composites modified glassy carbon electrode (GCE) surface was employed to detect NF using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Then, the SnBi₂O₃/GO/GCE showed outstanding selectivity, even in the presence of interfering substances, with a wide linear detection range from 0.023 µM to 814.36 µM, a detection limit (LOD) of 0.0124 µM (S/N = 3), and an ultra-sensitivity of 2.857 μA μM<sup>−1</sup> cm<sup>−2</sup>. Additionally, the SnBi₂O₃/GO/GCE successfully detected NF in biofluids and water samples, demonstrating satisfactory accuracy and recovery.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106033"},"PeriodicalIF":5.5,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578248","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

Adsorption-degradation properties of magnetic porous biochar (FeXZn@BC) in the removal of TC and Cu2+

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-08 DOI: 10.1016/j.jtice.2025.106063

Song Xia , Akun Liu , Yongjun Hu , Wenxuan Li , Xuede Li , Jifei Hou

{"title":"Adsorption-degradation properties of magnetic porous biochar (FeXZn@BC) in the removal of TC and Cu2+","authors":"Song Xia , Akun Liu , Yongjun Hu , Wenxuan Li , Xuede Li , Jifei Hou","doi":"10.1016/j.jtice.2025.106063","DOIUrl":"10.1016/j.jtice.2025.106063","url":null,"abstract":"<div><h3>Background</h3><div>Copper (Cu<sup>2+</sup>) and antibiotics are common and co-existing pollutants in wastewater from livestock and poultry farms.</div></div><div><h3>Methods</h3><div>Magnetic porous carbon (Fe<sub>X</sub>Zn@BC) with different iron contents was prepared by one-step using zinc chloride and ferric chloride as modifiers. Tetracycline (TC) and Cu<sup>2+</sup> as target pollutants were used to investigate the adsorption properties of Fe<sub>X</sub>Zn@BC. Additionlly, the degradation performances of Fe<sub>X</sub>Zn@BC activating peroxymonosulfate (PMS) and iodide (IO<sub>4</sub><sup>−</sup>) on TC degradation were further investigated.</div></div><div><h3>Significant Findings</h3><div>The order of the adsorption capacities of the adsorbents for TC was (mmol·g<sup>−1</sup>): Fe<sub>2</sub>Zn@BC (1.39) > Fe<sub>5</sub>Zn@BC (1.09) > Fe<sub>10</sub>Zn@BC (1.03) > BC (0.03), and for Cu<sup>2+</sup> was (mmol·g<sup>−1</sup>): Fe<sub>2</sub>Zn@BC (1.93) > Zn@BC (1.39) > Fe<sub>5</sub>Zn@BC (1.29) > Fe<sub>10</sub>Zn@BC (1.00) > BC (0.28). The Fe<sub>X</sub>Zn@BC also could catalyze PMS for TC degradation, and the removal of TC by PMS could be strengthened in the presence of Cu<sup>2+</sup>. Dynamic experiments on the removal of TC in water using Fe<sub>2</sub>Zn@BC were conducted, and the effects of PMS and Cu<sup>2+</sup> on the dynamic experiments of TC removal were investigated. This study provides a new perspective on the co-removal of antibiotics and heavy metals Cu<sup>2+</sup>.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106063"},"PeriodicalIF":5.5,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577545","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

Investigation on the urea deposits formation in the selective catalyst reduction system of a marine high-power engine

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-08 DOI: 10.1016/j.jtice.2025.106075

Chong Xia , Yuanqing Zhu , Diantao Liu , Song Zhou , Yongming Feng , Jie Shi , Ang Sun , Kai Zhu

{"title":"Investigation on the urea deposits formation in the selective catalyst reduction system of a marine high-power engine","authors":"Chong Xia , Yuanqing Zhu , Diantao Liu , Song Zhou , Yongming Feng , Jie Shi , Ang Sun , Kai Zhu","doi":"10.1016/j.jtice.2025.106075","DOIUrl":"10.1016/j.jtice.2025.106075","url":null,"abstract":"<div><h3>Background</h3><div>The incomplete decomposition of urea to form urea deposits is a major problem in the application of engine selective catalytic reduction (SCR) technology. To improve the NOx reduction rate of the SCR system, it is necessary to suppress the formation of urea deposits.</div></div><div><h3>Methods</h3><div>The high-pressure SCR system of a 20 MW marine low-speed two-stroke diesel engine was taken as a research object. The positions and shapes of urea deposits formed within the SCR system were investigated through sea navigation experiments. Then, various characterization techniques were used to detect the chemical composition of urea deposits in different regions. Finally, a comprehensive computational fluid dynamics (CFD) simulation method was introduced to model the injection of urea-water solution (UWS), droplet collision, and the formation of urea deposits.</div></div><div><h3>Significant findings</h3><div>The main chemical composition of urea deposits was cyanuric acid (cya, C<sub>3</sub>H<sub>3</sub>N<sub>3</sub>O<sub>3</sub>) and ammelide (C<sub>3</sub>H<sub>4</sub>N<sub>4</sub>O<sub>2</sub>). The simulation results indicated a high level of consistency between the predicted shape, location, and chemical composition of urea deposits and the experimental findings. After adjusting the installation direction of the static mixer, the deposition rate of the liquid film was reduced by about 50%, and the formation of cya and ammelide was effectively suppressed.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106075"},"PeriodicalIF":5.5,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577544","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

Synthesis of n-eicosane with SiO2 through interfacial hydrolysis and polycondensation for thermoregulated leather fabrication

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-07 DOI: 10.1016/j.jtice.2025.106060

Venkatesan Natesan, Nithyashree MK, Nishad Fathima

{"title":"Synthesis of n-eicosane with SiO2 through interfacial hydrolysis and polycondensation for thermoregulated leather fabrication","authors":"Venkatesan Natesan, Nithyashree MK, Nishad Fathima","doi":"10.1016/j.jtice.2025.106060","DOIUrl":"10.1016/j.jtice.2025.106060","url":null,"abstract":"<div><h3>Background</h3><div>In the last few years, there has been increased interest in technical processing for better thermoregulation of leather. Phase Change Materials (PCMs) are good for thermal energy storage (TES) due to their low cost and excellent thermal stability. These materials are used for various applications such as energy storage, textiles, thermal conditioning of buildings, and solar power storage.</div></div><div><h3>Methods</h3><div>Herein, simple and cost-effective microencapsulation of phase change materials (MEPCMs) is reported for TES through interfacial hydrolysis and polycondensation of tetraethyl orthosilicate. Microencapsulation enhances the thermal and mechanical properties and prevents leakage of PCM. The synthesized MEPCMs have been characterized by XRD, ATR-FTIR, TGA, DSC, DLS, leakage test, and FE-SEM analysis.</div></div><div><h3>Significant findings</h3><div>The MEPCM-6 shows the phase change enthalpy as 70.3 J g<sup>-1</sup> and 60.7 J g<sup>-1</sup>, for the melting and freezing process, respectively. The optimized MEPCM has been applied to leather for developing thermoregulation properties on leather. MEPCMs-coated leathers show up to 2.6 °C lower and 2.2 °C higher temperature difference than control leather in hot and in cold conditions, respectively.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106060"},"PeriodicalIF":5.5,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562427","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

An innovative composite Mn/Ti photocatalysts developed for the removal of elemental mercury and nitric oxide

IF 5.5 3区工程技术

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2025-03-07 DOI: 10.1016/j.jtice.2025.106055

Ting-Yu Chen, Ji-Ren Zheng, Chung-Shin Yuan, Ching-Ching Hsu

{"title":"An innovative composite Mn/Ti photocatalysts developed for the removal of elemental mercury and nitric oxide","authors":"Ting-Yu Chen, Ji-Ren Zheng, Chung-Shin Yuan, Ching-Ching Hsu","doi":"10.1016/j.jtice.2025.106055","DOIUrl":"10.1016/j.jtice.2025.106055","url":null,"abstract":"<div><h3>Background</h3><div>The simultaneous removal of elemental mercury (Hg<sup>0</sup>) and nitric oxide (NO) from flue gas emissions is crucial for reducing air pollutant emissions from coal-fired power plants. MnO₂ and TiO<sub>2</sub> photocatalysts have attracted attention due to their ability to facilitate in oxidation at low temperatures. However, the effects of catalyst composition, flue gas components, and operating conditions on photocatalytic performance remains insufficiently understood, limiting their optimization for industrial applications.</div></div><div><h3>Methods</h3><div>MnO<sub>2</sub>/TiO<sub>2</sub> photocatalysts with varying Mn/Ti ratios were synthesized, and their surface characteristics were used to assess structural and optical properties. Catalytic oxidation tests for Hg<sup>0</sup> and NO were performed under near-UV light at 100–200°C, considering the effects of SO<sub>2</sub> and NO concentrations.</div></div><div><h3>Significant findings</h3><div>Catalysts with optimal Ti/Mn ratios demonstrated high removal efficiencies, with Hg<sup>0</sup> and NO removal reaching up to 98.7%. Outperforming TiO<sub>2</sub>, MnO<sub>2</sub> inhibited electron-hole recombination, enhanced light absorption, and exhibited high sulfur resistance capability. It demonstrated that MnO<sub>2</sub> outperformed various Mn/Ti dual composites for removing Hg<sup>0</sup> and NO. For impurity gases, SO<sub>2</sub> inhibited Hg<sup>0</sup> oxidation, while NO showed a beneficial effect. The highest NO removal was observed at an [NH<sub>3</sub>]/[NO] molar ratio of 1.25. These findings highlight the potential of Ti/Mn dual composite catalysts’ potential for simultaneous Hg<sup>0</sup> and NO removal in industrial flue gas treatment.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106055"},"PeriodicalIF":5.5,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562428","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