Journal of the Taiwan Institute of Chemical Engineers最新文献

{"title":"Studies on the inhibitive effect of ferrozine on the corrosion of mild steel in hydrochloric acid","authors":"Anil Kumar ,&nbsp;Brohmani Bhattacharya ,&nbsp;Chandan Das","doi":"10.1016/j.jtice.2025.106221","DOIUrl":"10.1016/j.jtice.2025.106221","url":null,"abstract":"<div><h3>Background</h3><div>Corrosion poses a great danger to the safety of multiphase oil and gas facilities, leading to high maintenance costs, loss of life, and property loss. Recently, corrosion inhibitors have been most commonly used for metal protection applications.</div></div><div><h3>Methods</h3><div>In this work, ferrozine was utilized as a novel inhibitor for mitigating the mild steel (MS) corrosion in 1 M HCl, and its corrosion-inhibiting effect was investigated using electrochemical (potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS)) and mass loss methods.</div></div><div><h3>Significant Findings</h3><div>Tafel polarization results revealed that the corrosion current density (<em>i_corr</em>) significantly decreased and the polarization resistance increased in the presence of the inhibitor, indicating enhanced corrosion inhibition by ferrozine. The maximum inhibition efficiency of 88.85 % was achieved at a concentration of 1 × 10⁻³ M. The adsorption of ferrozine on the MS surface followed the Langmuir adsorption isotherm. The obtained value of <em>ΔG°_ads</em> (−9.83 kJ mol⁻¹) confirms the physical and self-adsorption of ferrozine molecules on the MS surface. Moreover, field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM) analysis, and X-ray diffraction (XRD) analyses indicated that ferrozine molecules form a protective layer on the surface of MS, which significantly reduces the MS degradation in acid medium.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106221"},"PeriodicalIF":5.5,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144231481","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":"Photocatalytic degradation of fluoxetine mediated by CuO/CuWO4 nanostructures","authors":"Laura Cristina Isabel Fonseca Becerra ,&nbsp;João Otávio Donizette Malafatti ,&nbsp;Elaine Cristina Paris ,&nbsp;Miryam Rincón Joya ,&nbsp;Ailton Jose Moreira ,&nbsp;Roberta Yonara Nascimento Reis ,&nbsp;Juliana B. Lima ,&nbsp;Carlos Arturo Parra Vargas ,&nbsp;Angela Mercedes Raba Páez","doi":"10.1016/j.jtice.2025.106215","DOIUrl":"10.1016/j.jtice.2025.106215","url":null,"abstract":"<div><h3>Background</h3><div>Photocatalytic activity of the CuO and CuWO₄, and heterostructured based in these has been thoroughly investigated however, the Fluoxetine (FLX) degradation has not been widely explored for CuO/CuWO₄ with the novel and economical synthesis method proposed in this work.</div></div><div><h3>Methods</h3><div>Four materials were produced by the co-precipitation method CuO, 100Cu/2W, 100Cu/6W, and CuWO₄; 100Cu/2W and 100Cu/6W corresponding to the CuO/CuWO₄ heterostructure according morphological and optical results.</div></div><div><h3>Significant Findings</h3><div>Degradation profile of FLX of 100Cu/6W and CuWO₄ samples showed the lowest removal over time, while the CuO and 100Cu/2W samples showed the best performances up to 30 min under UV-C light. For the 100Cu/2W sample (CuO/CuWO₄ heterostructure), the kinetic constant value was 82.3×10⁻² min⁻¹, which confirms its superiority for FLX degradation. CuWO₄ (<em>E_g</em> = 2.70 eV) can retain the lower energy photons and after new photon absorption, transfer the <em>e⁻</em> to CuO (<em>E_g</em> = 3.71 eV). Furthermore, the characterization results show that the 100Cu/2W heterostructure has <em>E_g, S_BET</em>_, and particle size values intermediate between CuO and CuWO₄, contributing to its better performance. Additionally, for all the materials TFMP, PPMA, and TP formation was confirmed in the first minutes of degradation. These new compounds can interact with the photocatalyst and block photocatalytic sites however, the performance of 100Cu/2W was maintained throughout the degradation time, confirming its photoactivity even in a more complex mixture containing FLX and its transformation products. The recyclability of 100Cu/2W for FLX degradation at 30 min was investigated; FLX removal increases to over 95% and is maintained until the last degradation cycle, confirming the potential of CuO/CuWO₄ for application in water treatment processes. Additionally, mass spectrometry analyses were carried out for the sample subjected to photocatalytic degradation in 30 min in the presence of 100Cu/2W. There, six transformation products (TP) were identified in the sample, confirming that the degradation mechanisms of FLX involve different routes.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106215"},"PeriodicalIF":5.5,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213218","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":"In-situ synchrotron X-ray study on microstructure and stress evolutions of electroplated copper upon self-annealing","authors":"Wan-Zhen Hsieh ,&nbsp;Pei-Tzu Lee ,&nbsp;Cheng-Yu Lee ,&nbsp;Yu-Hsuan Huang ,&nbsp;Ching-Yu Chiang ,&nbsp;Cheng-En Ho","doi":"10.1016/j.jtice.2025.106194","DOIUrl":"10.1016/j.jtice.2025.106194","url":null,"abstract":"<div><h3>Background</h3><div>The self-annealing behavior of electroplated copper (Cu) at room temperature is gaining attention in the microelectronics industry due to its significant impact on reliability issues such as substrate warpage and electrical resistivity.</div></div><div><h3>Methods</h3><div>In this study, in-situ analysis of the microstructure transition and stress relaxation of the electroplated copper upon self-annealing was conducted via synchrotron white X-ray nanodiffraction (beamline 21A, Taiwan Photon Source) and grazing-incidence X-ray diffraction (beamline 17B1, Taiwan Light Source).</div></div><div><h3>Significant Findings</h3><div>Remarkable relaxations of deviatoric stress and absolute strain component along the [002] direction were closely related to the Cu grain growth and crystallographic reorientation at the early stage of self-annealing, and a complete stress/strain relaxation can be achieved with the cessation of microstructure transition. The in-situ synchrotron X-ray studies provided an insight into Cu self-annealing mechanism, offering valuable information for improving Cu interconnect reliability.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106194"},"PeriodicalIF":5.5,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189753","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":"Cobalt-doped ferrihydrite with silicon content for efficient decomposition of ozone under dry and humid conditions","authors":"Qi Shao ,&nbsp;Mengyun Yang ,&nbsp;Xu Chu ,&nbsp;Jiang Zhang ,&nbsp;Chao Long","doi":"10.1016/j.jtice.2025.106218","DOIUrl":"10.1016/j.jtice.2025.106218","url":null,"abstract":"<div><h3>Background</h3><div>Recently, the problem of ground-level ozone (O₃) pollution seriously endangers the health of human. The development of an effective catalyst for the catalytic decomposition of ozone at low temperatures is urgent but challenging.</div></div><div><h3>Methods</h3><div>This research aimed to develop a cobalt-doped silicon-containing ferrihydrite (Fh) catalyst (Co-SiFh) by a simple coprecipitation method. As comparisons, the single cobalt-doped and silicone-stabilized Fh were also prepared. ICP-OES, XRD, FT-IR, XPS, H₂-TPR, O₂-TPD were used to characterize the chemical structure of the different catalysts. Besides the catalytic performance test, <em>in situ</em> reaction experiments were used to explore the catalytic reaction mechanism.</div></div><div><h3>Significant findings</h3><div>Compared with the original Fh catalyst, the ozone conversion of Co-Sifh increased from <em>ca.</em> 95 % to ca. 100 % and from ca. 3 % to ca. 80 % under dry and humid conditions, respectively. Moreover, the Co-SiFh catalyst also maintained stable catalytic ozone degradation effect in a long-term reaction progress of 30 h. The excellent catalytic performance of the catalyst in humid airflow is attributed to the newly formed hydroxyl active sites around Co-O-Fe through the strong interaction between Fe and Co. In addition, the specific active site (O*-H₂O) in the modified catalyst is also a key factor to improve the moisture resistance of Fh.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"174 ","pages":"Article 106218"},"PeriodicalIF":5.5,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144178242","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":"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}