N. Elavarasan , Gopal Venkatesh , Govindasami Periyasami , Kiky Corneliasari Sembiring , Jintae Lee , Govindasamy Palanisamy
{"title":"Ameliorative photocatalytic dye degradation performance of ternary Co3O4/MoS2/TiO2 nanocomposite under visible light illumination","authors":"N. Elavarasan , Gopal Venkatesh , Govindasami Periyasami , Kiky Corneliasari Sembiring , Jintae Lee , Govindasamy Palanisamy","doi":"10.1016/j.jtice.2025.106062","DOIUrl":"10.1016/j.jtice.2025.106062","url":null,"abstract":"<div><h3>Background</h3><div>This research aimed to synthesize a novel ternary nanohybrid material, Co<sub>3</sub>O<sub>4</sub>/MoS<sub>2</sub>/TiO<sub>2</sub> (CMT), to enhance photocatalytic degradation of methylene blue (MB) under light irradiation. Conventional photocatalysts often suffer from limited efficiency, so integrating Co<sub>3</sub>O<sub>4</sub>, MoS<sub>2</sub> and TiO<sub>2</sub> aimed to overcome these challenges by improving charge transfer and separation of electron-hole (e⁻/h⁺) pairs.</div></div><div><h3>Methods</h3><div>The CMT nanocomposites were synthesized using calcination and hydrothermal methods. Various spectroscopic and microscopic techniques were employed to characterize the CMT nanocomposites, and their photocatalytic activity was evaluated by testing MB degradation efficiency. Kinetic studies were also performed to assess the reaction rate, while the material's stability was tested over five degradation cycles.</div></div><div><h3>Significant findings</h3><div>The CMT nanocomposites demonstrated remarkable photocatalytic performance, achieving 94.77 % MB degradation, outperforming other materials. The kinetic rate constant was 0.0181 min⁻<sup>1</sup>, 4.02 times higher than alternative samples. Enhanced charge transfer between Co<sub>3</sub>O<sub>4</sub> and the other components contributed to efficient e⁻/h⁺ pair separation. The photocatalyst remained stable over repeated use, and superoxide radicals (•O<sub>2</sub>⁻) were identified as the dominant reactive species during MB degradation, highlighting the material's efficiency and durability.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106062"},"PeriodicalIF":5.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551828","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}
Mohd Imran , Ahmad Zuhairi Abdullah , Mohammad Ehtisham Khan , Young-Mog Kim , Fazlurrahman Khan
{"title":"Excellent successive photo-induced degradation of tetracycline using CuO/g-C3N4 nanocomposites: Synergistic effects of CuO integration and H2O2 in a photo-Fenton system","authors":"Mohd Imran , Ahmad Zuhairi Abdullah , Mohammad Ehtisham Khan , Young-Mog Kim , Fazlurrahman Khan","doi":"10.1016/j.jtice.2025.106068","DOIUrl":"10.1016/j.jtice.2025.106068","url":null,"abstract":"<div><h3>Background</h3><div>Sustainable and cost-effective approaches have not been fully explored. The photocatalysis process effectively removes toxic effluents and wastes, its efficiency is often hindered by suboptimal reaction parameter optimization, leading to excessive material degradation.</div></div><div><h3>Methods</h3><div>This research investigates the successful synthesis of g-C<sub>3</sub>N<sub>4</sub> (Graphitic carbon nitride), CuO (Copper oxide), and CuO/g-C<sub>3</sub>N<sub>4</sub> (Copper oxide/graphitic carbon nitride) nanocomposites by thermal decomposition, co-precipitation method, and ball milling process, respectively. The four distinct CuO/g-C<sub>3</sub>N<sub>4</sub> nanocomposites were synthesized, varying CuO amounts (300 mg, 600 mg, 900 mg, and 1200 mg) with a fixed amount of g-C<sub>3</sub>N<sub>4</sub> (1 g). The CuO/g-C<sub>3</sub>N<sub>4</sub> nanocomposite is utilized for a fast breakdown of tetracycline in wastewater samples in a photo Fenton process by adding H<sub>2</sub>O<sub>2</sub> under visible light irradiation.</div></div><div><h3>Significant findings</h3><div>Transmission electron microscopy analysis shows that CuO nanoflakes have successfully been deposited on g-C<sub>3</sub>N<sub>4</sub> nanosheets. Further characterization validated enhancing surface area, visible light activity, favourable charge transfer, efficient charge separation, and reduced charge recombination. The photo-induced degradation of tetracycline was optimized with parameters like CuO anchoring, H<sub>2</sub>O<sub>2</sub> addition, and pH, which were methodically examined using kinetic, scavenger tests, and reusability studies. The synergy of CuO and H<sub>2</sub>O<sub>2</sub> demonstrated exceptional tetracycline elimination following S-scheme mechanism, achieving 99 % degradation in 15 min. Kinetic studies revealed that the degradation of TC adheres to pseudo-first-order kinetics, hence emphasizing the catalytic efficacy. The rate constant for optimized CuO/g-C<sub>3</sub>N<sub>4</sub> nanocomposite was obtained 0.12542 min<sup>−1</sup>, which is approximately 7 times greater than pure g-C<sub>3</sub>N<sub>4</sub> in photo Fenton system. Moreover, the degradation efficiency remained at 91.5 % even after the 4th cycle, which suggests higher reusability and stability. The liquid chromatography–mass spectrometry analysis explained the degradation pathway which identified various intermediates that leads to complete minerlization. The findings confirm that CuO/g-C<sub>3</sub>N<sub>4</sub> nanocomposites can be effective for high-efficiency antibiotic degradation, offering a scalable and sustainable choice for water treatment applications.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106068"},"PeriodicalIF":5.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551829","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}
Ramadhass Keerthika Devi , Muthusankar Ganesan , Shen-Ming Chen , Ying Li , Hsiung-Lin Tu , Chih-Min Wang , Yeh-Fang Duann , Gopalakrishnan Gopu
{"title":"Graphitic carbon nitride-embedded MXene tungsten carbide nanoflakes for sensitive detection of cytotoxic tinidazole in biological samples","authors":"Ramadhass Keerthika Devi , Muthusankar Ganesan , Shen-Ming Chen , Ying Li , Hsiung-Lin Tu , Chih-Min Wang , Yeh-Fang Duann , Gopalakrishnan Gopu","doi":"10.1016/j.jtice.2025.106072","DOIUrl":"10.1016/j.jtice.2025.106072","url":null,"abstract":"<div><h3>Background</h3><div>Nitroimidazole derivatives, extensively utilized as antibiotics in the pharmaceutical, healthcare, and animal industries, pose a significant environmental threat as potential pollutants. Industrial discharge can introduce these compounds into water sources, where even trace levels of residues, such as tinidazole (TNZ), can adversely affect human health and aquatic ecosystems. However, the electrochemical detection of TNZ remains challenging due to limited sensitivity.</div></div><div><h3>Methods</h3><div>To address this challenge, a novel nanocomposite comprising MXene tungsten carbide (WC) decorated with graphitic carbon nitride nanosheets (WC/gCN NSs) was developed for highly sensitive TNZ detection. The WC/gCN NSs were synthesized through a straightforward approach, yielding stable nanosheets. The WC/gCN NSs-modified electrode demonstrated superior TNZ detection performance compared to conventional methods. This enhancement is attributed to the synergistic interaction between the conductive gCN NSs and the catalytic MXene WC, which generated abundant active sites and facilitated efficient electron transfer.</div></div><div><h3>Significant findings</h3><div>The sensor exhibited exceptional performance, achieving a detection limit of 3.6 nM, high sensitivity (4.2 µA µM⁻¹ cm⁻²), and a recovery rate of 99.9 % (<em>n</em> = 3). It also demonstrated excellent repeatability (RSD 2.4 %), reproducibility, and stability over 30 days. This study provides a promising strategy for designing electrocatalysts with tuneable architectures, contributing to sustainable materials for environmental protection.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106072"},"PeriodicalIF":5.5,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551830","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":"Aspen Adsorption simulation breakthrough curve to determine adsorption time in CH4/N2 adsorption separation by activated carbon","authors":"Youhan Chen, Yunfeng Hu","doi":"10.1016/j.jtice.2025.106065","DOIUrl":"10.1016/j.jtice.2025.106065","url":null,"abstract":"<div><h3>Background</h3><div>Pressure swing adsorption (PSA) is a crucial technology for CH₄/N₂ gas separation. While Aspen Adsorption numerical simulation offers an efficient approach to studying this process, precise guidelines for parameter setting are lacking. This study aims to address this gap using activated carbon as an adsorbent.</div></div><div><h3>Methods</h3><div>Aspen Adsorption simulations were used to develop breakthrough curves and virtual tower models for CH₄/N₂ separation. The study analyzed the impact of adsorption time on product purity and recovery. Additionally, concentration curves were examined to determine their influence on adsorption time setting.</div></div><div><h3>Significant Findings</h3><div>The optimal adsorption time for CH₄/N₂ adsorption on activated carbon was determined to be 850 s, which corresponds to the initial change in slope of the concentration curve. At this point, the system achieves optimal performance, with a CH₄ purity of 82.3 % and a recovery rate of 95.4 %. Furthermore, near the initial slope change (850 s), the concentration curve stabilizes, and the bed utilization rate reaches a higher level. To prevent output gas contamination, the step conversion process should be initiated before the breakthrough point (1450 s). This study provides valuable guidelines for optimizing pressure swing adsorption operations in CH₄/N₂ separation using activated carbon.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106065"},"PeriodicalIF":5.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143528861","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}
Wenyuan Fan , Shuaichao Li , Lixiang Li , Rujie Wang , Shiyang Liu , Taotao Fu
{"title":"Hydrodynamics of gas/shear-thinning fluid flowing in a co-flow microchannel","authors":"Wenyuan Fan , Shuaichao Li , Lixiang Li , Rujie Wang , Shiyang Liu , Taotao Fu","doi":"10.1016/j.jtice.2025.106036","DOIUrl":"10.1016/j.jtice.2025.106036","url":null,"abstract":"<div><h3>Background</h3><div>Gas-liquid flow hydrodynamics are one of crucial roles in enhancing the interphase transport and reaction properties in microchannel reactors.</div></div><div><h3>Methods</h3><div>The hydrodynamics of gas-liquid flow in a co-flow microchannel with shear-thinning fluid were numerically investigated using a coupled level-set and volume-of-fluid method by considering the rheological characteristics of the fluid. The reliability of the numerical approach is validated through comparing the calculated liquid film thickness with film thickness in previous work quantitatively. The influences of liquid phase type, carboxymethylcellulose (CMC) solution and surfactant (SDS) concentrations on flow pattern and film thickness are elucidated respectively.</div></div><div><h3>Significant findings</h3><div>Five flow patterns, i.e., bubbly flow, Taylor flow, Taylor annular flow, annular flow, and churn flow, were intuitively identified in a broad range of liquid phases including water, CMC solution, and polyacrylamide (PAM) solution, and a fundamental flow pattern map has been constructed using the Weber numbers for two phases. The results indicate that the proportions occupied by bubbly flow and churn flow expand significantly whereas the areas associated with other patterns shrink in both non-Newtonian fluids compared to water. The similar transitions in flow pattern are enhanced overall by increasing CMC and SDS concentrations. The film thickness always increases linearly with capillary number in all fluids. The maximum film thickness exists in the most contaminated CMC solutions by SDS, whereas the minimum one in water. Finally, a novel scaling law of film thickness in a co-flow microchannel with shear-thinning liquids is developed and has satisfactory accuracy by comparing with the literature predictions.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106036"},"PeriodicalIF":5.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534798","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}
Chenpeng Ji , Liping Jin , Shuhan Ye , Lei Liu , Yubo Chen , Lingxing He , Wei Wang , Kun Qian , Wenwen Guo
{"title":"Synthesis of novel N-phosphorylated iminophosphoranes and their application in flame-retardant epoxy resin","authors":"Chenpeng Ji , Liping Jin , Shuhan Ye , Lei Liu , Yubo Chen , Lingxing He , Wei Wang , Kun Qian , Wenwen Guo","doi":"10.1016/j.jtice.2025.106064","DOIUrl":"10.1016/j.jtice.2025.106064","url":null,"abstract":"<div><h3>Background</h3><div>Epoxy resin, one of the most commonly used thermosetting materials, suffers from the more obvious defect of being flammable.</div></div><div><h3>Methods</h3><div>In this work, three new types of N-phosphorylated iminophosphorane based on phosphorous compounds containing different phosphorus oxidation states (DPP-N-TMP, DOPO-N-TMP and DPPO-N-TMP) was successfully synthesized via the one-pot “Atherton-Todd and Staudinger reactions” approachs, and then introduced separately into EP matrix.</div></div><div><h3>Significant findings</h3><div>TGA results indicated that the incorporation of these three N-phosphorylated iminophosphoranes can prominently enhance the thermal stability at high temperature. Especially the char yield of EP/2.5 %DPP-N-TMP, EP/5 %DPP-N-TMP and EP/10 %DPP-N-TMP was gradually enhanced from 7.6 % of pure EP to 17.6 %, 22.7 % and 25.2 %, respectively. Notably, EP/10 %DPP-N-TMP possessed a relatively high LOI value of 29.0 % and passed V0 rating in UL-94 test, while EP/10 %DOPO-N-TMP (LOI∼27.5 %) and EP/10 %DPPO-N-TMP (LOI∼24.0 %) only displayed V1 and NR rating respectively. As for cone test results, EP/10 %DPP-N-TMP exhibited the most significant reduction of 63.8 % in PHRR and its THR was also remarkably reduced by 54.5 % compared to the neat EP. The analysis implied that EP/10 %DPP-N-TMP possessed the best flame retardant performance due to its higher phosphorus oxidation state, conducive to forming char layers, which improved fire retardancy.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106064"},"PeriodicalIF":5.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534800","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}
Pavitra Singh , E. Hemachandran , Umesh Prasad , Kamlesh Kumar Singh , B. Mallik
{"title":"Numerical analysis of a gas-solid vortex dryer integrated with a waste heat recovery system","authors":"Pavitra Singh , E. Hemachandran , Umesh Prasad , Kamlesh Kumar Singh , B. Mallik","doi":"10.1016/j.jtice.2025.106037","DOIUrl":"10.1016/j.jtice.2025.106037","url":null,"abstract":"<div><div>The gas-solid vortex (GSV) dryer is considered to be very ideal for grain drying since it is characterized by a better transfer of heat and mass transfer capabilities. To improve this dryer for grain drying application, an enhanced version is proposed, which was the integration of a GSV dryer with a waste heat recovery (WHR) system. This would recycle waste heat during the initial drying phase and improve the overall efficiency of drying. Both numerical simulation and experimental validation were conducted on the enhanced dryer. The Eulerian-Eulerian approach was used to analyze numerically by ANSYS FLUENT 14.5. Dryer performance was assessed at different conditions, including temperatures of 328 K, 333 K, and 338 K; air velocities between 25 and 35 m/s; and solid feed amounts ranging from 500 to 1500 g. Waste heat recovery in the GSV dryer improved the efficiency of drying considerably by an increase of 29.7 %. This enhancement optimizes energy use and reduces operational costs, making the GSV dryer with the WHR system a more sustainable and cost-effective solution for grain drying.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106037"},"PeriodicalIF":5.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534799","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}
Sing-Mei Tan , Subash C.B. Gopinath , Mohd Luqman Hakim Abdul Ghani , Hemavathi Krishnan , Jia-Chun Lim , Emily M.Y. Chow , Pachaiappan Raman
{"title":"Integration of bacteria-imprinted polymer with aluminium transducers: Polymeric electrical behaviour to ionic species","authors":"Sing-Mei Tan , Subash C.B. Gopinath , Mohd Luqman Hakim Abdul Ghani , Hemavathi Krishnan , Jia-Chun Lim , Emily M.Y. Chow , Pachaiappan Raman","doi":"10.1016/j.jtice.2025.106061","DOIUrl":"10.1016/j.jtice.2025.106061","url":null,"abstract":"<div><h3>Background</h3><div>Confronted with escalating public health issues exacerbated by bacterial infections, introducing a cost-effective and reliable approach for rapid bacteria detection is imperative.</div></div><div><h3>Methods</h3><div>In this research, bacteria-imprinted polymers (BIPs) technology targeting <em>Bacillus subtilis</em> was developed and characterised with Raman Spectroscopy and Fourier Transform Infrared Spectroscopy (FTIR). The BIPs were then incorporated into our newly designed capsula capacitive proximity electrode (CapCPE) sensor. Successful deposition of BIPs was validated by scanning electron microscopy (SEM), while the average thickness of the BIP coating was recorded as ∼ 3.0 µm. The current responses of both the bare device and BIP-CapCPE to different pH levels were examined.</div></div><div><h3>Significant Findings</h3><div>The results revealed that the bare device generated a maximum current of 7.55×10<sup>−4</sup> A in a highly acidic medium. In contrast, the BIP-coated device exhibited a maximum current of 1.0 × 10<sup>−4</sup> A in a highly alkaline medium, attributed to increased charge carrier density from the carboxyl group deprotonation in recognition cavities. Moreover, the mechanistic insights into the impact of strong electrolytes on BIP-coated electronic sensors were further proposed and elucidated. Electrochemical impedance spectroscopy (EIS) was additionally employed to reveal the impedimetric and capacitive behaviours of the devices in varied pH media.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106061"},"PeriodicalIF":5.5,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526982","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}
S. Sudheer Khan , J.P. Steffy , M. Swedha , Asad Syed , Abdallah M. Elgorban , Islem Abid , Ling Shing Wong
{"title":"Designing of ternary double Z-scheme Ni3(VO4)2/Cu2O/CoMoS2 nano-heterojunction for visible light-induced photocatalytic degradation of levofloxacin: Kinetics, degradation pathway and toxicity assessment","authors":"S. Sudheer Khan , J.P. Steffy , M. Swedha , Asad Syed , Abdallah M. Elgorban , Islem Abid , Ling Shing Wong","doi":"10.1016/j.jtice.2025.106017","DOIUrl":"10.1016/j.jtice.2025.106017","url":null,"abstract":"<div><h3>Background</h3><div>The extended presence of antibiotics in the environment is a significant concern due to its potential impact on ecological systems and human health. Unlike many other environmental pollutants, antibiotics are intentionally designed for stability and effectiveness within the human body. However, this advantageous characteristic can lead to their prolonged existence and resistance to breakdown in environmental settings.</div></div><div><h3>Methods</h3><div>In this investigation, we utilize nanomaterials such as CoMoS<sub>2</sub>, Cu<sub>2</sub>O, and Ni<sub>3</sub>(VO<sub>4</sub>)<sub>2</sub> to intricately engineer a double Z-scheme nano-heterojunction Ni<sub>3</sub>(VO<sub>4</sub>)<sub>2</sub>/Cu<sub>2</sub>O/CoMoS<sub>2</sub>, aiming to enhance the photocatalytic degradation efficiency of levofloxacin (LVF). The materials were synthesized by chemical co-precipitation and solvothermal method.</div></div><div><h3>Significant findings</h3><div>Scanning electron microscopy and elemental mapping reveals the nanocluster morphology, amorphous nature, and successful formation of heterojunctions. X-ray diffraction studies confirm the purity of the synthesized materials, while X-ray photoelectron spectroscopy validates their chemical states and bonding nature. Brunauer–Emmett–Teller analyses demonstrate an increased surface area and mesoporous nature of the NCs. UV–visible DRS illustrates the successful sensitization of NCs to visible light, exhibiting a bandgap of 2.30 eV. Furthermore, PL studies indicate reduced charge carrier recombination in the NCs, and ESR validates enhanced reactive oxygen species (ROS) production during photocatalysis, including O<sub>2</sub><strong><sup>.-</sup></strong> and <strong><sup>.</sup></strong>OH. The photocatalyst achieved a remarkable 99.07 % photocatalytic elimination of LVF. Interestingly, these NCs show good stability over several cycles and prolonged activity in the presence of ions. Furthermore, gas chromatography-mass spectrometry study reveals possible LVF degradation pathway and formation of non-hazardous end products.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"170 ","pages":"Article 106017"},"PeriodicalIF":5.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520950","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":"The physicochemical characterization of diesel-like fuels derived from plastic waste pyrolysis","authors":"Preecha Moonsin , Wuttichai Roschat , Sunti Phewphong , Sittichai Watthanalao , Phiriyakorn Chaona , Bunterm Maneerat , Supakorn Arthan , Aekkaphon Thammayod , Tappagorn Leelatam , Keyoon Duanguppama , Boonyawan Yoosuk , Pathompong Janetaisong , Vinich Promarak","doi":"10.1016/j.jtice.2025.106040","DOIUrl":"10.1016/j.jtice.2025.106040","url":null,"abstract":"<div><h3>Background</h3><div>This research investigates liquid fuel derived from the pyrolysis of plastic waste as a renewable biofuel for diesel engines, particularly in agricultural machinery. The study addresses waste management challenges while exploring sustainable energy solutions.</div></div><div><h3>Methods</h3><div>Pyrolysis at 500 °C in a non-catalytic process produced over 63 ± 2 wt% liquid fuel. Activated carbon treatment enhanced fuel quality by removing particles, yielding activated carbon-treated waste plastic pyrolysis oil (P-WPPO) with a slightly reduced yield of 85 ± 3 wt%. Advanced techniques, including ¹H-NMR, ¹³C-NMR, FT-IR, and GC–MS, were employed for chemical analysis, while fuel properties were assessed against EN-14214 and ASTM-D6751 standards. Thermal degradation behavior was evaluated using TGA.</div></div><div><h3>Significant findings</h3><div>Both crude and treated P-WPPO contained approximately 99 % hydrocarbons, predominantly unsaturated compounds, with a heating value of 10,907 ± 67 kcal/kg, only 1.60 % lower than B10 diesel. Thermal decomposition occurred between 40 and 250 °C, completing at 550 °C. P-WPPO demonstrated excellent potential as a renewable and energy-dense diesel substitute. This research underscores the dual benefits of mitigating plastic waste pollution and producing sustainable fuels, advancing innovative waste-to-energy strategies.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"171 ","pages":"Article 106040"},"PeriodicalIF":5.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512077","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}