International Journal of Mechanical and Materials Engineering最新文献

{"title":"Antibacterial activity of TiO2, CuO, and CuO/TiO2 nanomaterials and their potential application on construction surfaces","authors":"Z. Martínez-Corona,&nbsp;D. S. García-Zaleta,&nbsp;R. López-González,&nbsp;C. García-Mendoza,&nbsp;M. A. Alvarez-Lemus,&nbsp;C. Encarnacion-Gomez,&nbsp;S. A. Gómez-Cornelio","doi":"10.1186/s40712-025-00288-7","DOIUrl":"10.1186/s40712-025-00288-7","url":null,"abstract":"<div><p>In the construction sector, diverse microorganisms have the ability to form biofilms on constructed surfaces affecting the health of the inhabitants. In this sense, diverse nanomaterials of titanium oxide (TiO₂), copper oxide (CuO), and CuO/TiO₂ were synthesized by the sol–gel method, Pechini method, and a mechanical synthesismethod. The influence of the thermal treatment (425–575 °C) on the formation of crystalline phases in the compounds, as well as their antibacterial activity on <i>Escherichia coli</i> and <i>Staphylococcus aureus</i> was investigated. X-ray diffraction technique(XRD) results displayed the formation of anatase, rutile, and tenorite phases on the as-synthesized samples. The Rietveld refinement analysis estimated the composition of phases, as well as the crystal size for each crystalline phase in the specimens (from ~ 16 up to ~ 165 nm). The Fourier Transform Infrared (FTIR) spectroscopy showed the characteristic M–O vibrations of the TiO₂ and CuO compounds. No relevant signals of the precursors were detected. RAMAN spectroscopy confirmed the formation of anatase and rutile phases in the TiO₂ nanomaterials. Scanning electron microscopy (SEM) micrographs revealed the morphology of the compounds and dynamic light scattering (DLS) and electrophoretic light scattering (ELS) analysis showed the particle sizes (from ~ 225 to ~ 750 nm) with Z-potentials between − 11 mV and − 21 mV. Nitrogen adsorption/desorption isotherms results revealed pore sizes between ~ 0.2 and ~ 12.4 nm as well as surface area values up to ~ 158 m²/g. Finally, the minimum inhibitory concentration (MIC) evaluation revealed that the compounds that CuO-based compounds exhibit good antibacterial activity, with MIC values starting at 0.625 mg/mL, and the CuO/TiO₂ sample at 475 °C showed the highest efficacy at 0.312 mg/mL. These results suggest that the as-synthesized compounds could be used as disinfection agents on construction surfaces and in sick buildings, as well as they could to reduce the health risks associated with exposure to bacteria.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00288-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cerium oxide nanoparticles: a promising nanotherapy approach for chronic degenerative diseases","authors":"Hugo Christian Monroy-Ramirez,&nbsp;Jorge Salto-Sevilla,&nbsp;Scarlet Arceo-Orozco,&nbsp;Fernando Caloca-Camarena,&nbsp;Roberto Flores-Peña,&nbsp;Edgar Lopez-Mena,&nbsp;Marina Galicia-Moreno,&nbsp;Juan Armendariz-Borunda","doi":"10.1186/s40712-025-00295-8","DOIUrl":"10.1186/s40712-025-00295-8","url":null,"abstract":"<div><p>Oxidative stress is a process caused by excess-free radicals and reactive oxygen species (ROS), which contribute to the onset and progression of various chronic degenerative diseases. Consequently, interest has grown in studying natural and synthetic antioxidant compounds that restore normal ROS metabolism, alleviating the damage in affected tissues. Despite the above, several preclinical and clinical studies evaluating these therapies have shown some contradictory results since sometimes the use of these molecules has not shown the desired therapeutic efficacy, or in some cases, the use of these antioxidants has been related to the appearance of harmful effects due to their lack of specificity, to the associated adverse effects, in addition to the fact that some ROS are essential for normal physiological functions. On the other hand, nanotechnology is one of the most widely used technological advances in the drug industry. Targeted delivery of active ingredients combines knowledge of pharmacology, pharmaceutical development, polymer sciences, conjugate chemistry, and molecular biology to improve the pharmacokinetics of active ingredients, decreasing their toxicity, immunogenicity, and biorecognition. Cerium oxide nanoparticles (CeO₂-NPs) have emerged as a novel therapeutic alternative with high antioxidant capacity, demonstrating beneficial effects in both in vivo and in vitro studies for treating chronic degenerative disorders. CeO₂-NPs are only activated when ROS levels reach a harmful threshold, which protects healthy cells from unwanted effects. Their therapeutic potential has been demonstrated in multiple fields of medicine, including oncology, neurology, ophthalmology, cardiology, and hepatology. Therefore, this review addresses the potential applications of CeO₂-NPs evaluated in animal and in vitro models of chronic degenerative diseases, which help visualize and position them as an effective and safe therapeutic alternative for treating this condition.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00295-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of ZnSe thin films by solution-processed spin coating method for photonic integration applications","authors":"Tanzina Rahman,&nbsp;Md. Alamin Hossain Pappu,&nbsp;Bipanko Kumar Mondal,&nbsp;Syeda Samiha Nushin,&nbsp;Jaker Hossain","doi":"10.1186/s40712-025-00299-4","DOIUrl":"10.1186/s40712-025-00299-4","url":null,"abstract":"<div><p>This investigation introduces a novel method for the fabrication of ZnSe thin films on glass substrates through the spin coating technique which employs thiol-amine cosolvents. The thiol-amine co-solvent system efficiently dissolves several metal and metal chalcogenide precursors, facilitating cost-effective, and low-temperature solution-based deposition compatible with flexible substrates. The synthesized ZnSe thin films underwent air annealing at temperatures between 250 and 350 °C, thereby improving their structural and optical characteristics. The polycrystalline nature of ZnSe was elucidated via X-ray diffraction (XRD) analysis, while scanning electron microscopy (SEM) assured the rise of surface smoothness and uniformity with annealing temperature. Energy-dispersive spectroscopy (EDS) analysis indicated near-stoichiometric ZnSe composition, and Fourier-transform infrared (FTIR) spectroscopy identified Zn–Se stretching vibrations in the 960–1120 cm⁻¹ range. The optical data demonstrated high transmittance with an optical bandgap of 3.32–3.85 eV. Furthermore, optical data of ZnSe were embarked for computation of Ge-on-ZnSe waveguide with SiO₂ cladding for long-wave infrared (LWIR) light. The waveguide showed a remarkable power confinement factor (PCF) of ~ 0.99 with nearly 1 dB/cm loss at a laser wavelength of 8 μm. These outputs are highly optimistic for the fabrication of solution-processed ZnSe for LWIR photonic integration.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00299-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel white powder light tunable luminescence in dibarium magnesium disilicate phosphor with Tb3+Eu3+ based on energy transfer","authors":"Dipti Shukla,&nbsp;Pratiksha Pandey,&nbsp;M. Z. Khan","doi":"10.1186/s40712-025-00280-1","DOIUrl":"10.1186/s40712-025-00280-1","url":null,"abstract":"<div><p>The Di barium magnesium Di-silicate Ba2MgSi2O7 (BMSO) with single-doped Tb3 + , Eu3 + phosphors, and co-doped Tb3 + /Eu3 + phosphors were prepared by the combustion method. The structural characterisation was studied by X-ray diffraction (XRD) technique, and an optical property (PL, ML) and luminescence decay curves were utilised to describe each phosphor’s properties. Profound green emission due to the Tb3 + 5D4-7F5 transition was optically canvassed in the Tb3 + single-doped Ba2MgSi2O7 sample, and it was determined that the appropriate concentration quenching process involved a diople-diople interaction. A huge overlap between Tb3 + emission and Eu3 + excitation spectra has consequences for strength transfer from Tb3 + to Eu3 + . Based on the concentration quenching approach, it was found that the energy transfer mechanism is a quadrupole–quadrupole interaction, and the energy transfer critical distance from Tb3 + to Eu3 + ions is predicted to be (6.7). Additionally, by altering the ratio of Tb3 + and Eu3 + concentrations in Ba2MgSi2O7:Tb3 + Eu3 + phosphors, white light emission was produced. According to all the findings, the single-component white light-producing phosphor BMSO: Tb3 + Eu3 + is a promising one.\u0000</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00280-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144117648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fundamental development of the particulate percent packing efficiency combining both coating particulate and asphalt aggregate packing technology","authors":"Richard D. Sudduth","doi":"10.1186/s40712-025-00274-z","DOIUrl":"10.1186/s40712-025-00274-z","url":null,"abstract":"<div><p>A primary objective of this study was to evaluate how the more fundamental blending approach to optimize the packing of pigments in coatings can potentially be used to improve the packing of the asphalt-aggregate blends. In the course of this study, a new way to characterize the efficiency of the packing of particles was developed from the particle packing fraction analysis originally included as a component of a previously published suspension viscosity model. This new percent packing efficiency introduced in this study was found to be particularly useful in evaluating the packing efficiency for particle distributions of all sizes. The large scale of the aggregates in asphalt previously published in the Goode and Lufsey study along with the properties included in their report was very useful in developing the formulation for this new percent packing efficiency analysis. A property analysis of the Goode and Lufsey study data found that the minimums for the mineral voids and the air voids appear to correspond with the maximums for percent packing efficiency as well as the maximums of the bulk-specific density. These results appear to indicate that the percent packing efficiency can be a significant measure of the efficiency of particle packing for aggregate blends. These preliminary analysis results also suggest that the percent packing efficiency may also be able to detect unstable particle packing applications for particle distributions of all sizes as well as potentially unstable asphalt/aggregate applications. As anticipated, the Goode and Lufsey maximum density standard gradation did yield the maximum percent packing efficiency followed in order by other standard gradations including a stone matrix gradation, the superpave gradation, and finally, a Bailey gradation. Finally, several new gradations were identified in this study that could potentially offer significant property improvements over both gradation 3 from the Goode and Lufsey study as well as the other current aggregate gradation standards for the asphalt industry.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00274-z","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144100427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stimuli-responsive hydrogels, their mass transfer, intermolecular interactions, and applications in biomedical devices","authors":"Parker M. Toews,&nbsp;Ashwin Velraj,&nbsp;Jeffrey S. Bates","doi":"10.1186/s40712-025-00283-y","DOIUrl":"10.1186/s40712-025-00283-y","url":null,"abstract":"<div><p>Hydrogels are versatile materials that can be used in biomedical applications, where their multifunctional capabilities can be leveraged as sensors, actuators, drug delivery devices, and chemomechanically responsive materials. This review article explores the diverse applications of hydrogels and their chemomechanical response. The foundations of hydrogels, encompassing their physics, chemistry, and diffusion properties, are presented, providing a comprehensive understanding of their behavior. Synthesis and fabrication challenges, such as batch consistency, storage stability, degradation, and inconsistent mechanical swelling behavior, are addressed. Hydrogels are often characterized by using a variety of methods to define the full scope of their material properties, including structural analysis, UV–visible spectroscopy, dynamic mechanical analysis, scanning electron microscopy, rheology, optical microscopy, pressure sensing, and nuclear magnetic resonance. The current state of the art of hydrogels is explored, focusing on the physical and chemical properties and some theories and mathematical models that describe their behavior. We discuss drug delivery, diffusion studies, controlled release, sustained drug interactions, and various drug delivery methods, ranging from transdermal to ocular to mucous membranes. We further present hydrogels as viable candidates for 3D-printed devices, including sensors and actuators, where we examine specificity, selectivity, biomarker interactions, and molecularly imprinted polymers. The emerging areas of 3D-printed hydrogel devices, microfluidics, and soft robotics and their potential uses are highlighted. Finally, limitations, opportunities, and future research directions are proposed to enhance commercial viability and define potentially valuable insights for future advancements in the field. </p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00283-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of mono and hetero-bi nuclear lanthanum (III) and europium (III) complexes of 2-hydroxy-5-sulfobenzoic acid and 1,10-phenanthroline: luminescence and magnetic studies","authors":"Rukhsana J. Wani,&nbsp;Arshad Hussain,&nbsp;Mehraj Ud Din Sheikh,&nbsp;Mohd Nadeem Bukhari,&nbsp;Maryam Fatima,&nbsp;Gazunfor Ali","doi":"10.1186/s40712-025-00226-7","DOIUrl":"10.1186/s40712-025-00226-7","url":null,"abstract":"<div><p>The resurgence of interest in lanthanide coordination complexes due to their diverse applications has been increasing for past decade. These lanthanide complexes have found applications such as catalysts, sensors, optoelectronics, light sources, and modified semiconductors. The modifications in the lanthanide complex chemistry due to the use of different complexation agents enhanced the luminescence properties by varying the emission bands, stoke shifts, and lifetimes accordingly. This versatile nature of lanthanide complexes increased our interest to make a good contribution to the field. The complexes of lanthanum, europium, and novel binary complex of La and Eu metals with 1,10-phenanthroline (Phen) and 5-sulfosalicylic acid (SSA) were synthesized by co-precipitation method. Different physicochemical techniques like analytical and spectroscopic were used to characterize the ligands and complexes. The coordination of ligands with metals in complexes was confirmed by FTIR and UV spectroscopy. The surface morphology of nine coordinated La-complexes and seven coordinated Eu complexes was investigated by SEM micrographs. The X-ray crystallographic analysis revealed that all the complexes exhibit a triclinic crystal system. All the complexes were found to exhibit self-reversed magnetic hysteresis (SRMH). The luminescence and magnetic properties of mixed metal complexes are enhanced as compared to their mononuclear analogs.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00226-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anodic oxidation of additively manufactured Sc-doped Al–Mg alloy in aqueous cerium (III) nitrate for corrosion protection","authors":"Denise Yin,&nbsp;Plamen A. Demirev,&nbsp;Tanner R. Hamann,&nbsp;David M. Lee,&nbsp;Maddison R. Harman,&nbsp;Michael V. Cyrana,&nbsp;Steven. M. Storck,&nbsp;Charles W. Kerechanin II,&nbsp;Rengaswamy Srinivasan","doi":"10.1186/s40712-025-00284-x","DOIUrl":"10.1186/s40712-025-00284-x","url":null,"abstract":"<div><p>Additively manufactured scandium-doped AA5083 aluminum-magnesium alloy (AA5083-Sc) has a higher yield strength compared to the undoped version. However, AA5083-Sc is prone to pitting and microbiologically induced corrosion in seawater. Chemical conversion coating using aqueous cerium (III) nitrate, Ce(NO₃)₃, provides only a moderate improvement in corrosion resistance. Electrochemical anodic oxidation of the alloy’s surface in a 0.2-M Ce(NO₃)₃ solution at pH 4, conducted over an extended period at low current density, significantly enhances its corrosion resistance. After undergoing surface oxidation, the alloy demonstrates corrosion resistance for more than a year when submerged in aerated water containing 3.5% sodium chloride and two types of corrosion-inducing bacteria: <i>Vibrio penaeicida</i> and <i>Thalassospira profundimaris</i>. Electrochemical oxidation transforms the alloy surface oxide from an insulator to a p-type semiconductor, effectively slowing down the cathodic reduction reaction without hindering anodic oxidation. Since the rate of electrochemical corrosion is determined by the slower of two reactions—metal oxidation and the accompanying cathodic reaction—our findings suggest that cathodic reaction slowing is sufficient to reduce the corrosion rate. Additionally, cerium is known for its antifouling properties, and treating the surface with cerium also helps to minimize biofouling and microbial colonies.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00284-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of MgO-ZrO2 mixed oxides prepared by the sol–gel method","authors":"José Armando Olmos López,&nbsp;Alida Elizabeth Cruz Pérez,&nbsp;María Guadalupe Hernández Cruz,&nbsp;Marcía Eugenia Ojeda Morales,&nbsp;Ebelia del Ángel Meraz,&nbsp;Cecilia Encarnación Gómez","doi":"10.1186/s40712-025-00275-y","DOIUrl":"10.1186/s40712-025-00275-y","url":null,"abstract":"<div><p>Combining ceramic materials such as MgO and ZrO₂ can have a wide chemical and technological application. In this context, the sol–gel method is a very noble method for preparing mixed oxides, as it allows the control of their textural and surface properties. This paper aims to evaluate the structural and morphological properties of MgO-ZrO₂ mixed oxides as a function of their composition, for which solids of 10, 25, 50, 75, and 90% mol of ZrO₂ were synthesized by the sol–gel method. The obtained materials were characterized by N₂ physisorption, X-ray diffraction, scanning electron microscopy and diffuse reflectance, Fourier transform infrared, and Raman spectroscopy. The results showed that the textural properties of MgO improved by adding 25% ZrO₂, such that this solid showed the highest surface area (124 m²/g) and pore diameter of 12 nm. FTIR, RD-UV–Vis, and Raman spectra showed the presence of O–H chemical bonds due to the hygroscopic character of the materials. In contrast, XRD results showed MgO in the periclase phase and ZrO₂ mostly in the tetragonal phase. It was also observed that the bandgap energy increases slightly as a function of ZrO₂ content. On the other hand, SEM micrographs showed that the increase of ZrO₂ changes the morphology of the particles, size and shape.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00275-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lithium Manganese Oxide (Li2MnO3) as a promising photocatalyst for the degradation of Eriochrome Black T","authors":"Aderemi Babatunde Alabi,&nbsp;Marco Villani,&nbsp;Valentina Sinisi,&nbsp;Stefano Rampino,&nbsp;Nicola Coppede,&nbsp;Samuel Adebayo,&nbsp;Haleemat Iyabode Adegoke,&nbsp;Samson Ibukun Akinsola","doi":"10.1186/s40712-025-00247-2","DOIUrl":"10.1186/s40712-025-00247-2","url":null,"abstract":"<div><p>Wastewater pollution caused by toxic dyes from the textile industry is a global challenge, threatening agricultural productivity, food security, and access to clean water for livestock. In recent years, photocatalytic degradation of organic pollutants using semiconducting materials has emerged as a promising approach for sustainable wastewater treatment. We present a cost-effective synthesis method for lithium manganese oxide (Li₂MnO₃), which aggregate to form a densely packed microcrystalline powder, with smooth-stone morphology, and monoclinic crystal structure. Optical characterization reveals broad visible light absorption, strong infrared reflectance and an optical bandgap of 2.1 eV, suggesting potential applications in radiation-resistant coatings. Moreover, the obtained Li₂MnO₃ material effectively degraded Eriochrome Black T, a common textile dye, with efficiencies up to 73% for 5 × 10⁻⁵ M solutions, under illumination at 625 nm, within 60 min. These findings underscore the potential of Li₂MnO₃ nanostructured microcrystals for wastewater treatment applications.\u0000</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00247-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143888711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}