Journal of the Taiwan Institute of Chemical Engineers最新文献

{"title":"S-doping promoting dual redox cycles in the ACM@S-Cu/Fe3O4/PMS system under visible light for chloroquine phosphate degradation","authors":"Huirong Zhang ,&nbsp;Yuning Chen ,&nbsp;Wenyue Wang ,&nbsp;Xiaotong Chang ,&nbsp;Kaiyu He ,&nbsp;Li-An Hou ,&nbsp;Bo Wang ,&nbsp;Yun Zhang","doi":"10.1016/j.jtice.2025.106217","DOIUrl":"10.1016/j.jtice.2025.106217","url":null,"abstract":"<div><h3>Background</h3><div>The activation of peroxymonosulfate (PMS) in metal-based systems is often limited by the slow redox cycle reactions of metal ions, hindering the efficient degradation of pollutants. These sluggish reactions can be enhanced through ion doping, which not only accelerates the redox cycles but also improves the stability of the reaction.</div></div><div><h3>Methods</h3><div>The S-doped Cu/Fe₃O₄@ACM photocatalyst was synthesized by dispersing a copper-iron bimetallic oxide doped with sulfur onto a ceramic film. Its performance was evaluated in the degradation of Chloroquine phosphate via photocatalysis and PMS activation. The comprehensive morphological, structure, and optical properties were thoroughly evaluated by SEM, TEM, XRD, BET, PL and DRS, and the degradation mechanism was analyzed using XPS, EIS, ESR, and LC-MS characterization of the catalysts.</div></div><div><h3>Signification Findings</h3><div>The resulting ACM@S-Cu/Fe₃O₄/PMS/visible light (VL) system achieved 98.7% CQ degradation within 30 min, with an apparent rate constant 2.9 times higher than the undoped counterpart. This enhanced performance is attributed to sulfur doping, which facilitated the dual redox cycles of Cu(II)/Cu(I) and Fe(III)/Fe(II), accelerating PMS activation. Quenching experiments and ESR spectra confirmed the involvement of ^•OH, <span><math><msubsup><mtext>SO</mtext><mrow><mn>4</mn></mrow><mrow><mo>•</mo><mo>−</mo></mrow></msubsup></math></span>, <span><math><msubsup><mi>O</mi><mrow><mn>2</mn></mrow><mrow><mo>•</mo><mo>−</mo></mrow></msubsup></math></span>, ¹O₂, and h⁺ in the degradation process. Notably, the system also demonstrated efficient removal of CQ in real water matrices and rapid degradation of other emerging pollutants. This research provides a promising strategy for developing highly efficient PMS activation systems for wastewater treatment through strategic heteroatom doping, offering mechanistic insights into the enhanced degradation of emerging pollutants.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106217"},"PeriodicalIF":5.5,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178244","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":"Study of crystal structure, morphological, optical and photocatalytic dye degradation properties of BiVO4-Bi2S3 nanocomposites synthesised in-situ using facile and cost-effective hydrothermal method","authors":"Deepika Yadav,&nbsp;Anjli Sharma,&nbsp;Anil Ohlan,&nbsp;Sajjan Dahiya,&nbsp;R. Punia,&nbsp;A.S. Maan","doi":"10.1016/j.jtice.2025.106199","DOIUrl":"10.1016/j.jtice.2025.106199","url":null,"abstract":"<div><h3>Background</h3><div>Heterostructure photo-catalysts are in high demand for efficient photocatalytic degradation of organic contaminants in wastewater generated from the pharmaceutical and textile industries.</div></div><div><h3>Methods</h3><div>In this work hydrothermal method was used for synthesis of two pure nanomaterials, BiVO₄(BVO) and Bi₂S₃(BS) and their three nanocomposites with BVO:BS ratio of (1:05), (1:1), (1:2). Characterization techniques such as XRD, UV-DRS, FESEM, EDX, PL, Zeta-potential, and photocatalytic dye degradation were used to assess their optical and structural features and dye degradation efficiency.</div></div><div><h3>Significant Findings</h3><div>The Rietveld refinement of XRD data is performed to confirm the monoclinic phase of BVO and orthorhombic phase of BS. FESEM images of nanocomposites showed that BS rods were attached to the surface of BVO broken walnut. The optical band gap of pristine(BS and BVO) and BVOBS nanocomposites were determined using UV-DRS and found in the range 1.42–2.51 eV, which makes these nanomaterials suitable photocatalysts under visible-light exposure. The photo-catalytic degradation efficiency was tested under visible-light exposure for Rhodamine-B(RhB) dye. 10 mg of BVOBS(1:1) nanocomposite demonstrated highest degradation efficiency(96 %) compared to other nanocomposites for 10 ppm RhB solution in 180 min and obeys first-order kinetic model. The energy consumption cost is ∼Rs.12 for optimizing BVOBS(1:1) nanocomposite for degradation of 10 ppm RhB dye.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106199"},"PeriodicalIF":5.5,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144169237","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":"Improving dye-sensitized solar cell longevity: An aerogel encapsulation approach","authors":"Savisha Mahalingam ,&nbsp;Abreeza Manap ,&nbsp;Kam Sheng Lau ,&nbsp;Dita Floresyona ,&nbsp;Chin Hua Chia ,&nbsp;Nurfanizan Afandi ,&nbsp;Puvaneswaran Chelvanathan ,&nbsp;Faiz Arith ,&nbsp;Agung Nugroho","doi":"10.1016/j.jtice.2025.106207","DOIUrl":"10.1016/j.jtice.2025.106207","url":null,"abstract":"<div><div>The primary challenge in dye-sensitized solar cells (DSSCs) is electrolyte leakage, compromising long-term stability and performance. Alternative electrolytes and encapsulation strategies have been explored to address this. In this study, we propose using nitrogen, fluorine, and sulfur-doped reduced graphene oxide (NSF-rGO) aerogel as an electrolyte encapsulator within DSSCs. The NSF-rGO aerogel was synthesized using a one-pot hydrothermal technique and serves to trap the liquid electrolyte, enhancing cell stability while maintaining conductivity. Although the initial power conversion efficiency of the NSF-rGO-based DSSC was lower than that of the conventional DSSC, it demonstrated significantly improved long-term stability. After two years, the efficiency drop in the NSF-rGO encapsulated DSSC was notably less than in the conventional design, indicating effective electrolyte retention and resistance to degradation. These results suggest that NSF-rGO aerogel encapsulation is a promising strategy for extending the operational lifespan of DSSCs and contributing to more sustainable energy solutions.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106207"},"PeriodicalIF":5.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144146928","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":"Integrated photocatalytic Process for Lactic Acid synthesis from Sugarcane Leaf (Saccharum officinarum): Biomass delignification and photocatalytic Conversion with oxygen-doped graphitic carbon nitride","authors":"Alice Jasmine David ,&nbsp;Han Sen Soo ,&nbsp;Tamilarasan Krishnamurthi","doi":"10.1016/j.jtice.2025.106193","DOIUrl":"10.1016/j.jtice.2025.106193","url":null,"abstract":"<div><h3>Background</h3><div>Photocatalytic upcycling of agro-biomass represents an advanced approach for simultaneously producing high-value products and managing organic waste. However, its commercial viability remains suboptimal, primarily due to challenges in developing efficient photocatalysts. The regulation and optimization of photocatalyst performance play a crucial role in enhancing biomass conversion efficiency and improving platform chemical production.</div></div><div><h3>Methods</h3><div>This study investigates the efficiency of microwave-assisted seawater treatment for lignin fractionation from <em>Saccharum officinarum</em> leaf (SCL) biomass and its integration with high-value organic acid synthesis in a photobiorefinery framework. The treatment using seawater with sodium carbonate (SW-SC) exhibited superior fractionation performance, yielding 79.20 wt % cellulose in the treated SCL biomass (TSCL), which is enhancing its suitability for further conversion. Various oxygen-doped g-C₃N₄ photocatalysts were synthesized through oxygen coupling, among the g-C₃N₄-O_{50 %} exhibiting the highest photocatalytic activity. Under alkaline conditions, the photocatalytic conversion of TSCL resulted in a maximum lactic acid (LA) yield of 345.39 mg g⁻¹ TSCL and a formic acid (FA) yield of 30.45 mg g⁻¹ TSCL..</div></div><div><h3>Significant Findings</h3><div>The one-thousand-fold scale-up experiment demonstrated the feasibility of industrial lactic acid production using this reaction system, considering its favorable reaction conditions, economic viability, and environmental benefits. This study introduces a novel photocatalytic approach for the selective oxidation of biomass-derived monosaccharides into lactic acid.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106193"},"PeriodicalIF":5.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144146960","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":"Preparation of P-doped spherical bimetallic oxides by co-immobilization of acids for sustainable oxidative desulfurization","authors":"Jingxuan Xu,&nbsp;Chunfeng Mao,&nbsp;Qinyi Li,&nbsp;Haojie Sun,&nbsp;Hao Fan,&nbsp;Yixiao Lv","doi":"10.1016/j.jtice.2025.106211","DOIUrl":"10.1016/j.jtice.2025.106211","url":null,"abstract":"<div><h3>Background</h3><div>The catalytic oxidative desulfurization of sulfide from fuel oil is significant in producing clean energy. However, traditional catalysts face some bottleneck problems, such as improving accessible area, balancing electronic effects, and adjusting surface acidity.</div></div><div><h3>Methods</h3><div>This study reveals a designed P-doped transition-metal-oxides (P-TMOs(Ce/Mo)). Its spherical structure and surface acidity are obtained under regulations of acetic acid and phosphate. Self-directional migration of phosphate is achieved through a temperature-programmed method.</div></div><div><h3>Significant findings</h3><div>These procedures alter oxygen bridge-bondings between Ce-Mo to improve the mobility of excited oxygen atoms. Phosphate migrated to the surface creates Mo-O-P electron channels, facilitating reversible metal valence switching. The intricate processes of mass and electron transfer enhance the functionality of the metal sites, resulting in a synergistic acid-metal capability. ODS rate of 99.67 % is achieved under the mild reaction conditions (V(ILs)/V(oil)=0.02; n(O)/n(S)=2.8; m(catalyst)/V(oil)=0.005/5 (g/mL); 50 °C). The low activation energy (46.4 kJ/mol) and the dual-pathway synergistic catalytic reaction mechanism involving •OH and •O₂⁻ were verified by experiments and analyses (UV–Vis, XPS, EPR, etc.). Catalysts maintain stable ODS performance after multiple recycling processes. A novel catalyst recovery pathway has been identified, thereby enhancing the application potential of P-TMOs(Ce/Mo) across various dimensions.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106211"},"PeriodicalIF":5.5,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138867","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":"Bio-inspired hexagonal MoO nano-pencil rods for agrarian-pest control","authors":"S. Sreevidya ,&nbsp;Sushma Yadav ,&nbsp;Sunita Sanwaria ,&nbsp;Yokraj Katre ,&nbsp;Anil Kotasthane ,&nbsp;Ajaya Kumar Singh ,&nbsp;Sónia A.C. Carabineiro","doi":"10.1016/j.jtice.2025.106195","DOIUrl":"10.1016/j.jtice.2025.106195","url":null,"abstract":"<div><h3>Background</h3><div>The overuse and misuse of agrochemical pesticides to control pests and prevent crop losses pose serious environmental threats. To address this issue, and safeguard our environment for future generations, we aimed to develop eco-friendly and sustainable nano-biopesticides for controlling agricultural pests, such as the <em>Bactrocera cucurbitae</em> insect and certain microbes.</div></div><div><h3>Method</h3><div>Molybdenum salt, when subjected to ultra-sonification with aqueous floral extracts of <em>Bauhinia monandra</em> (BM) or <em>Clitoria ternatea</em> (CT) species, resulted in the formation of bio-inspired hexa-MoO nano-pencil-rods. The ‘h-MoO’ nano-formulation was tested for its toxicity against botanical-pest pathogens, zoological-pests, human cells, and the Wistar-rat model, using both <em>in vitro</em> and <em>in vivo</em> models.</div></div><div><h3>Significant Findings</h3><div>The bio-nano-template MoO_CT(33.91)/MoO_BM(44.48) nm was characterized spectroscopically using ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and energy-dispersive X-ray spectroscopy (EDS). The ‘h-MoO’ formulation exhibited 100.00% efficacy against <em>Bactrocera cucurbitae</em>, with very low lethal concentrations, LC₅₀ and LC₉₀ values of 6.92 and 51.03 μg/mL, respectively, for 1st to 3rd instar larvae. FE-SEM images of the dead larvae revealed the presence of h-nanorods on the exterior and internal cell membrane damage. The antimicrobial capacity of ‘h-MoO’ was high, with a low EC₅₀ [1.92 to 20.21 (µg/mL)] and significant inhibition rates (14.28 to 99.28%) against agricultural pest pathogens. <em>In vitro</em> tests demonstrated notable oxidative stress and reactive oxygen species generation in the anti-microbials, as well as low toxicity to human cells (Hep G2, HeLa and HaCaT). <em>In vivo</em> trials on the Wistar-rat model showed low toxicity for the administered doses.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106195"},"PeriodicalIF":5.5,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144146961","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":"Carboxymethyl cellulose grafted with lithium acrylate as anode binder for improving performance of lithium-ion batteries at low temperatures","authors":"Kuan-Yi Liao ,&nbsp;Chia-Chin Chang ,&nbsp;Yuh-Lang Lee ,&nbsp;Ten-Chin Wen","doi":"10.1016/j.jtice.2025.106188","DOIUrl":"10.1016/j.jtice.2025.106188","url":null,"abstract":"<div><h3>Background</h3><div>Due to numerous hydrogen bonding from carboxymethyl cellulose (CMC), CMC as anode binder for Lithium-Ion Batteries (LIBs) performs poor at low temperature. This study designs the less hydrogen bonding forming of anode binder to improve performance of LIBs at low temperatures.</div></div><div><h3>Methods</h3><div>CMC is grafted with LA via oxa-Michael addition to obtain the product, denoted as CMC-LA. Subsequently, LIBs are constructed by graphite-based anode with CMC-LA and CMC binders, respectively denoted as LIB-CMC-LA and LIB-CMC for coin cells with lithium metal. The data for capacities (<em>C</em>), charge transfer resistance (<em>R_ct</em>), and diffusion coefficients (<em>D</em>_Li+) are respectively calculated from galvanic charge-discharge cycles, electrochemical impedance spectroscopy, and cyclic voltammetry from 25 to -13 °C.</div></div><div><h3>Significant findings</h3><div>At 25 °C, the data for <em>C, R_ct</em>, and <em>D</em>_Li+ of LIBS-CMC-LA and LIBs-CMC are respectively calculated as 365 mAhg^-1, 15.9 Ω, and 9.84 × 10^–10 cm²s^-1, as well as, 323 mAhg^-1, 17.3Ω, and 2.7 × 10^–10 cm²s^-1. Noticeably, at -10 °C, the data for C, R_ct, and <em>D</em>_Li+ of LIBS-CMC-LA (163mAhg^-1, 613Ω, and 3.46 × 10^–11 cm²s^-1) significantly diverge from those of LIBS-CMC (76 mAhg^-1, 4000Ω, and 7.9 × 10^–13 cm²s^-1), being coincided with the results for the less exothermic area of CMC-LA than CMC from 0 to -20 °C by differential scanning calorimetry analysis.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106188"},"PeriodicalIF":5.5,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138866","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":"Upcycling waste lotus seed heads into iron oxide-impregnated activated carbon for CO2 adsorption and supercapacitor application","authors":"Arun Kumar Senthilkumar ,&nbsp;Mohanraj Kumar ,&nbsp;Jih-Hsing Chang","doi":"10.1016/j.jtice.2025.106198","DOIUrl":"10.1016/j.jtice.2025.106198","url":null,"abstract":"<div><h3>Background</h3><div>CO₂ emissions are a major concern due to their impact on global warming scenarios. The increased CO₂ level in the atmosphere demands the creation of effective, environmentally friendly methods to reduce its impact.</div></div><div><h3>Methods</h3><div>In this study, we investigated the use of iron oxide on carbon surfaces as a highly effective CO₂ adsorbent. Impregnating iron oxide on a carbon matrix generated from lotus seed heads increased the surface chemistry and active sites. The surface properties and chemical composition of the material were investigated using X-ray photoelectron spectroscopy, Fourier Transform infrared spectroscopy, and Brunauer-Emmett-Teller.</div></div><div><h3>Significant findings</h3><div>The activated carbon prepared from lotus seed heads at 800°C exhibits an enhanced surface area of 1179.657 m² g^-1, with a micropore volume of 0.461 cm³ g^-1. Following the impregnation process, the surface area decreased, indicating successful impregnation of iron oxide within the carbon matrix. The resulting sorbent material leverages the advantages of both physical and chemical adsorption, utilizing the micropores in the carbon matrix alongside the catalytic properties of iron compounds. Research findings indicate that the L-Fe material significantly improves the CO₂ adsorption rate to 62.16 mg/g, due to the stronger interaction between CO₂ molecules and the active surface sites. Furthermore, the adsorbent material exhibits notable durability and reusability across multiple adsorption-desorption cycles, underscoring its suitability for large-scale industrial applications. Concurrently, the carbon material enhanced with iron oxide exhibited outstanding capabilities as an electrode component, showcasing a charge storage capability of 153.5 F g^-1 and exceptional stability of 86.84% for 5000 charge-discharge cycles. The material shows remarkable reusability for CO₂ sequestration and durability in energy storage, highlighting its versatile capabilities. These findings underscore the potential of carbon infused with iron oxide as an eco-friendly and cost-effective solution for addressing global environmental challenges while promoting advancements in renewable energy.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106198"},"PeriodicalIF":5.5,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125140","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":"Improved performance of highly sensitive room-temperature ammonia gas sensor with P-type doping carbazole-triazine derivative","authors":"Yu-Hsiang Cheng ,&nbsp;Chien-Chih Chen ,&nbsp;Li-Yin Chen ,&nbsp;Yi-Jyun Ma ,&nbsp;Hsuang-Kai Hsiao ,&nbsp;Ying-Chang Lu ,&nbsp;Jung-Kang Tu ,&nbsp;Hsiao-Wen Zan ,&nbsp;Hsin-Fei Meng ,&nbsp;Hao-Wu Lin ,&nbsp;Yung-Hsu Tai ,&nbsp;Mei-Hsin Chen","doi":"10.1016/j.jtice.2025.106197","DOIUrl":"10.1016/j.jtice.2025.106197","url":null,"abstract":"<div><h3>Background</h3><div>The detection and monitoring of ammonia (NH₃) gas are critical for various applications, including environmental monitoring, industrial safety, and medical diagnostics. NH₃ is a significant biomarker for chronic kidney disease and the effectiveness of hemodialysis, requiring sensors capable of detecting ppb-level concentrations. While advanced analytical techniques meet the sensitivity requirements, their high cost and complex instrumentation limit practical applications. Developing cost-effective, highly sensitive, and user-friendly ammonia sensors remains a priority.</div></div><div><h3>Methods</h3><div>This study presents a room-temperature NH₃ gas sensor based on 2,4-diphenyl-6-bis(12-phenylindolo)[2,3-a]carbazole-11-yl)-1,3,5-triazine (DIC-TRZ), a material known for its high carrier mobility and stable electrical properties. The sensor was integrated into a vertical nano-junction device structure, and its performance was enhanced using a p-type doping strategy with 1 wt % F4-TCNQ. The operational current, sensitivity, limit of detection (LOD), stability, and selectivity were systematically evaluated.</div></div><div><h3>Key Findings</h3><div>The DIC-TRZ-based sensor demonstrated excellent ammonia detection performance, with a sensitivity of 0.0467 %/ppb and an LOD of 20.7 ppb for the non-doped device, and a sensitivity of 0.0391 %/ppb and an LOD of 16.0 ppb for the doped device. The sensor exhibited rapid response and recovery times and a stable operational current. The doping strategy increased the current by nearly two orders of magnitude, reaching ∼10⁻⁵ A, significantly improving the signal-to-noise ratio. This enhancement enabled real-time current measurement using a low-cost multimeter, broadening the applicability for environmental monitoring, medical diagnostics, and portable applications.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106197"},"PeriodicalIF":5.5,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125141","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":"Fabrication of compact self-standing covalent organic framework membranes with ultrahigh flux and superior performance for dye separation","authors":"Sara Hameed ,&nbsp;Farhat Jubeen ,&nbsp;Munawar Iqbal ,&nbsp;Nargis Bano ,&nbsp;Misbah Sultan ,&nbsp;Atif Islam ,&nbsp;Ayyar Manikandan ,&nbsp;Arif Nazir","doi":"10.1016/j.jtice.2025.106186","DOIUrl":"10.1016/j.jtice.2025.106186","url":null,"abstract":"<div><h3>Background</h3><div>Covalent organic frameworks (COFs) have become a promising candidate for advanced water treatment membranes due to their adjustable pore sizes, high surface area, remarkable thermal and chemical stability. Typically, COFs are separated as unrefined and insoluble powders, due to which their extensive use as nano-filtration membranes is greatly limited.</div></div><div><h3>Method</h3><div>In this work, we report a facile method of evaporation casting of homogeneous polymerized COF solutions on cellulose support (CS). The homogeneous polymerization method eliminates the need for prior modification of the CS surface, making it a groundbreaking achievement in our study. BZTP-COF solution was prepared by using benzidine (BZ) and terephthalaldehyde (TP). While BZ, melamine (ME) and 2,4,6-triformylphloroglucinol (TFP) were used to prepare the BZMETFP-COF solution.</div></div><div><h3>Significant Findings</h3><div>As expected, the anionic COF membranes exhibited an excellent permeation flux of up to 9479 Lm⁻²h⁻¹MPa⁻¹ with different protic and aprotic solvents. Overall, the BZTP-CS-COF membrane exhibited excellent water permeability (5420 Lm⁻²h⁻¹MPa⁻¹) and high selectivity with 98% rejection against aqueous MB dye solution. This work provides a pivotal concept and strategies for facile preparation of COF membrane under mild conditions for the treatment of dyeing process effluents.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"173 ","pages":"Article 106186"},"PeriodicalIF":5.5,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070541","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}