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Magnesium-doped hydroxyapatite for application in the photocatalytic degradation of different dye mixtures simultaneously under sunlight irradiation
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-04 DOI: 10.1007/s10853-024-10512-y
Mário A. M. Castro, Tanara C. N. Nicácio, Antônio C. N. Santos, Marlyson C. Viegas, Ricardo P. Souza, Maurício R. D. Bomio, Fabiana V. Motta
{"title":"Magnesium-doped hydroxyapatite for application in the photocatalytic degradation of different dye mixtures simultaneously under sunlight irradiation","authors":"Mário A. M. Castro,&nbsp;Tanara C. N. Nicácio,&nbsp;Antônio C. N. Santos,&nbsp;Marlyson C. Viegas,&nbsp;Ricardo P. Souza,&nbsp;Maurício R. D. Bomio,&nbsp;Fabiana V. Motta","doi":"10.1007/s10853-024-10512-y","DOIUrl":"10.1007/s10853-024-10512-y","url":null,"abstract":"<div><p>The search for efficient materials for cleaning water is still being explored today. With this objective, pure hydroxyapatite (HAp) was prepared in this work as a ceramic matrix doped with 1, 3 and 5% magnesium by a microwave-assisted hydrothermal method (MAH) aimed at photocatalytic application under sunlight irradiation. XRD and FTIR analyses showed that only HAp was obtained from all the samples, and Rietveld refinement indicated a reduced crystallite size and increased microstrain after Mg doping. Nanorod-like morphologies were observed after analysis by SEM-FEG, with a decrease in the length and width of the particles after inserting the dopant. The UV‒Vis results revealed that the HAp bandgap decreased to 3.75 eV after doping. The photoluminescence spectra showed that oxygen vacancies were generated in the presence of Mg, which also caused an increase in the specific surface area of HAp. Photocatalytic tests were conducted with mixtures of methylene blue, crystal violet and malachite green dyes. After 120 min of sunlight irradiation, the sample with 3% Mg obtained the best results, achieving up to 94% degradation of the dyes. Furthermore, reusability tests showed that there was a small reduction in photocatalytic efficiency after five cycles, without structural changes in the photocatalyst. Inhibition tests showed that superoxides and holes are the active radicals, and tests with inorganic anions revealed that carbonates, nitrates and sulphates promote degradation, while phosphates reduce photocatalytic performance. This work highlights the promising alternative application of hydroxyapatite for simultaneous efficient photodegradation of different pollutants using sustainable energy.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"22053 - 22072"},"PeriodicalIF":3.5,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of moulding processing on poly (lactic acid) (PLA) semi-crystalline properties
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-04 DOI: 10.1007/s10853-024-10497-8
Giovanna Molinari, Laura Aliotta, Paola Parlanti, Mauro Gemmi, Andrea Lazzeri
{"title":"Influence of moulding processing on poly (lactic acid) (PLA) semi-crystalline properties","authors":"Giovanna Molinari,&nbsp;Laura Aliotta,&nbsp;Paola Parlanti,&nbsp;Mauro Gemmi,&nbsp;Andrea Lazzeri","doi":"10.1007/s10853-024-10497-8","DOIUrl":"10.1007/s10853-024-10497-8","url":null,"abstract":"<div><p>Poly (lactic acid) (PLA) is a bio-based and compostable polyester, widely employed in a variety of daily used products, being easily processed via the traditional manufacturing techniques, i.e., injection moulding (IM), compression moulding (CM), blow moulding (BM), etc. This study will be specifically focused on the impact of both IM and CM processing techniques on PLA characteristics, aiming to optimize these manufacturing procedures and ultimately improving its end-products features. By means of thermal, mechanical and microscopy analysis, the role of the different moulding techniques in influencing the PLA semi-crystalline development will be extensively investigated, also by correlating the related morphology with its macroscopical behavior. It will be observed that the polymer flow orientation during IM promotes the semi-crystalline development, as confirmed by Avrami analysis, XRD measurements, and TEM imaging. Moulded sample thickness, manufacturing pressure, and PLA granular consolidation that differ for the two moulding methodologies appear to be directly accountable for the detected faster crystallization kinetics during IM when compared to the CM one. Finally, by combining thermal information (Gibbs–Thomson equation), XRD data (Scherrer equation) and TEM imaging, the size of the crystalline lamellae during PLA crystallization will be sampled, also detecting the phenomenon of \"lamellar thickening\" as the crystalline content increases in both the injection and compression moulded samples.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"22344 - 22362"},"PeriodicalIF":3.5,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring citric acid cross-linking: achieving optimal properties in cellulose–gelatin films for antimicrobial biopolymer applications
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-03 DOI: 10.1007/s10853-024-10481-2
Sekar Tri Wulan Amelia, Shafira Nur Adiningsih, Tantular Nurtono, Heru Setyawan, Takashi Ogi, Eka Lutfi Septiani, W. Widiyastuti
{"title":"Exploring citric acid cross-linking: achieving optimal properties in cellulose–gelatin films for antimicrobial biopolymer applications","authors":"Sekar Tri Wulan Amelia,&nbsp;Shafira Nur Adiningsih,&nbsp;Tantular Nurtono,&nbsp;Heru Setyawan,&nbsp;Takashi Ogi,&nbsp;Eka Lutfi Septiani,&nbsp;W. Widiyastuti","doi":"10.1007/s10853-024-10481-2","DOIUrl":"10.1007/s10853-024-10481-2","url":null,"abstract":"<div><p>This study investigates the cross-linking mechanism’s ability to modify and enhance material properties, particularly in biopolymer applications. Although cross-linking offers numerous advantages, precise control over the cross-linking level is essential for achieving optimal properties and reducing undesirable effects. We explored the multifunctional effects of citric acid (CA) as a cross-linking agent in cellulose–gelatin films, assessing its impact at various concentrations. Our findings reveal that excessive cross-linking does not always improve film properties. Notably, cellulose–gelatin films containing 10% (wt) CA exhibited a smooth surface and favorable characteristics, achieving a percent elongation of 77.44%, tensile strength of 0.09 MPa, and Young modulus of 1.21. The films also exhibit a high swelling ratio, indicating their excellent swelling ability in aqueous environments. Furthermore, in vitro evaluations indicated that CA significantly enhances the antibacterial activity of films against <i>Escherichia coli</i> and <i>Staphylococcus aureus</i>. These results demonstrate the potential of CA cross-linked cellulose–gelatin films in medical and healthcare applications, particularly as wound dressings that deliver durable antimicrobial efficacy.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"22327 - 22343"},"PeriodicalIF":3.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Review on the application of density functional theory to predict the color, electronic, and optical properties of ceramic pigments along with experimental confirmation
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-03 DOI: 10.1007/s10853-024-10455-4
S. Y. Vaselnia, M. Khajeh Aminian
{"title":"Review on the application of density functional theory to predict the color, electronic, and optical properties of ceramic pigments along with experimental confirmation","authors":"S. Y. Vaselnia,&nbsp;M. Khajeh Aminian","doi":"10.1007/s10853-024-10455-4","DOIUrl":"10.1007/s10853-024-10455-4","url":null,"abstract":"<p>Ceramic pigments are inorganic materials that can be used in industrial applications. Here, we reviewed the works reported in the literature where first-principles calculations based on density functional theory (DFT) have been used to predict the color, electronic, and optical properties, along with experimental confirmation. Recently, theoretically predicting the color of ceramic pigments has been proposed as a new idea, and some studies have been conducted in this field. The research papers calculated the different properties of pigments using DFT and provided a solution to predict the color of ceramic pigments. Herein, it has been shown how methods such as Lanczos, Bethe-Salpeter equation (BSE), and many-body <span>(F_{xc})</span> kernel for long-range correction (LRC) model can be used to predict the absorption spectra of ceramic pigments. The absorption spectra data were imported into the Color Viewer software to calculate the color of the pigments. This review presents and discusses recent studies using DFT for ceramic pigments and explains how to complete this theory.</p>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"21987 - 22023"},"PeriodicalIF":3.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correlation between the multiferroic properties in (1-x)BaTiO3-xCoFe2O4 composites
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-03 DOI: 10.1007/s10853-024-10488-9
Layiq Zia, Ghulam Hassnain Jaffari, Jimenez Ricardo, Amorín Harvey, Ping Kwan Johnny Wong, Ismat Shah
{"title":"Correlation between the multiferroic properties in (1-x)BaTiO3-xCoFe2O4 composites","authors":"Layiq Zia,&nbsp;Ghulam Hassnain Jaffari,&nbsp;Jimenez Ricardo,&nbsp;Amorín Harvey,&nbsp;Ping Kwan Johnny Wong,&nbsp;Ismat Shah","doi":"10.1007/s10853-024-10488-9","DOIUrl":"10.1007/s10853-024-10488-9","url":null,"abstract":"<div><p>Multiferroic materials, which exhibit coupled ferroelectric and magnetic properties, hold immense promise for multifunctional device applications. Here, a multistep synthesis method, involving chemical synthesis, mechanical milling, and Spark Plasma Sintering, was utilized to fabricate (1-<i>x</i>)BaTiO<sub>3</sub>-<i>x</i>CoFe<sub>2</sub>O<sub>4</sub> (BTO-CFO) compacted ceramics composites with <i>x</i> = 0.1, 0.2, 0.3, and 0.4. Controlled high pressure and pulsed current facilitated rapid densification, yielding high-density fine microstructures. Structural analysis confirmed the coexistence of tetragonal BaTiO<sub>3</sub> (BTO) and cubic spinel CoFe<sub>2</sub>O<sub>4</sub> (CFO) phases, forming 0–3 type multiferroic composites. Microstructural analysis revealed CFO grain clustering within the BTO matrix. The temperature-dependent magnetization curve of CFO shows an increase in magnetization within the temperature range of BTO ferroelectric phase transition, suggesting a strain-mediated magnetoelectric coupling. Temperature and frequency dependence of dielectric permittivity highlighted significant CFO conductivity contribution. Ferroelectric hysteresis and magnetoelectric coupling were observed predominantly in low CFO content samples, with differences in magnetoelectric coefficient values attributed to preferential ferroelectric polarization alignment. Our findings suggest that achieving high interface coupling is very challenging due to high leakage current from the magnetic phase.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"22149 - 22165"},"PeriodicalIF":3.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tailoring vanadium pentoxide nanoparticles for humidity sensing: impact of microwave annealing
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-03 DOI: 10.1007/s10853-024-10485-y
Merlin R. Charlotte, Leema Rose Viannie
{"title":"Tailoring vanadium pentoxide nanoparticles for humidity sensing: impact of microwave annealing","authors":"Merlin R. Charlotte,&nbsp;Leema Rose Viannie","doi":"10.1007/s10853-024-10485-y","DOIUrl":"10.1007/s10853-024-10485-y","url":null,"abstract":"<div><p>Microwave annealing technology is gaining importance for processing metal oxides owing to its faster reaction time and volumetric heating. However, the utilization of this technique for producing vanadium oxide has not been explored. This study investigates the impact of both conventional annealing and microwave annealing on the crystal structure, light absorption, defect formation and humidity sensing performance of V<sub>2</sub>O<sub>5</sub> nanoparticles. V<sub>2</sub>O<sub>5</sub> was synthesized using the polyol method, involving the thermolysis of vanadyl ethylene glycol followed by annealing in oxygen atmosphere at 400 °C, 500 °C and 600 °C. The formation of layered, orthorhombic and stable phase of V<sub>2</sub>O<sub>5</sub> nanoparticles was confirmed using X-ray diffraction and Raman spectroscopy analyses. Field emission scanning microscopy showed the development of sheet-like morphology with average particle sizes of 99 ± 40 nm and 104 ± 51 nm for conventional annealing and microwave annealing, respectively. Annealing at elevated temperatures induced grain growth and facilitated oxygen diffusion, leading to the formation of oxygen vacancies. This was confirmed by optical studies, which revealed a reduction in the bandgap and the presence of defect states within the band. Relatively, microwave annealing resulted in fewer oxygen vacancies due to rapid heating, as evidenced by electron paramagnetic resonance studies and X-ray photoelectron spectroscopy. Moreover, the samples were evaluated for humidity sensing capabilities. The superior sensitivity of 48% at a higher relative humidity (97%) was observed for M5 sample that can be attributed to the smaller particle size facilitating more active sites, which makes it suitable for humidity sensing applications.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"22034 - 22052"},"PeriodicalIF":3.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of the increased strain per pass during the hot-rolling and its effect on the tensile properties of V-Mo and Cr-V-Mo microalloyed dual-phase steels
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-03 DOI: 10.1007/s10853-024-10373-5
Karol F. Rodriguez-Galeano, John Nutter, Yunus Azakli, Carl Slater, W. Mark Rainforth
{"title":"The effect of the increased strain per pass during the hot-rolling and its effect on the tensile properties of V-Mo and Cr-V-Mo microalloyed dual-phase steels","authors":"Karol F. Rodriguez-Galeano,&nbsp;John Nutter,&nbsp;Yunus Azakli,&nbsp;Carl Slater,&nbsp;W. Mark Rainforth","doi":"10.1007/s10853-024-10373-5","DOIUrl":"10.1007/s10853-024-10373-5","url":null,"abstract":"<div><p>It is well known that the thermomechanical processing parameters affect the mechanical properties of dual-phase (DP) steels, but optimization still remains a key challenge. This work studied two interphase precipitation-strengthened DP steels based on V, Mo, and V, Mo, Cr microalloy additions. Hot-rolling was performed with a strain per pass of 0.2 and 0.4 before isothermal transformation at temperatures between 600 and 690 °C to determine the effect of these process parameters on microstructure, particularly interphase precipitation. The microstructure was carefully correlated with the mechanical properties. It was found that a higher strain during hot rolling increases the transformation kinetics of austenite to ferrite and also increases the volume fraction of the interphase precipitation within it, leading to higher strength values. The reaustenitization temperature before the isothermal transformation also plays an important role, with increased temperature reducing the segregation banding effect and increasing the amount of ferrite. The optimal reaustenitization temperature depends on the composition, being 1250 °C for the microalloyed steel with Cr additions and 1150 °C for the Cr-free microalloyed steel. A new method was used to calculate the yield strength of these DP microalloyed steels, including the strengthening contributors of each phase and the banding effect brought into one single expression that matches the experimental results.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"22228 - 22249"},"PeriodicalIF":3.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-024-10373-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Formation of icosahedral quasicrystals embedded in an Al-FCC matrix, in a novel Al–Cu–Fe–Cr alloy, after laser remelting
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-03 DOI: 10.1007/s10853-024-10495-w
A. V. Rodrigues, A. F. Ramirez, G. Zepon, J. B. Fogagnolo, W. Wolf
{"title":"Formation of icosahedral quasicrystals embedded in an Al-FCC matrix, in a novel Al–Cu–Fe–Cr alloy, after laser remelting","authors":"A. V. Rodrigues,&nbsp;A. F. Ramirez,&nbsp;G. Zepon,&nbsp;J. B. Fogagnolo,&nbsp;W. Wolf","doi":"10.1007/s10853-024-10495-w","DOIUrl":"10.1007/s10853-024-10495-w","url":null,"abstract":"<div><p>In this work an Al<sub>90</sub>Cu<sub>4</sub>Fe<sub>2</sub>Cr<sub>4</sub> spray-formed alloy, originally consisting of an α-Al matrix with two crystalline intermetallic phases, Al<sub>13</sub>Cr<sub>2</sub> and λ-Al<sub>13</sub>Fe<sub>4</sub>, was subjected to laser surface remelting. Different sets of parameters, including combinations of laser power, table displacement speed and laser beam diameter, were used. The laser track with the best combination of track geometry and microstructural refinement was selected for a detailed microstructural characterization, using transmission electron microscopy coupled with diffraction analysis. The mechanical properties were assessed by dynamic indentation tests. The surface remelted sample showed a microstructure consisting of refined icosahedral quasicrystals, with average dispersoid size below 1 μm, embedded in an Al-FCC matrix. This is the first time quasicrystal formation is reported for this composition. Additionally, the laser remelted material presented a substantial increase in the microhardness value compared to the substrate, from 167 to 205 kgf/mm<sup>2</sup>.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"22283 - 22291"},"PeriodicalIF":3.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mn-MOFs derived manganese-based oxide by regulating atmosphere as zinc-ion battery cathode
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-03 DOI: 10.1007/s10853-024-10483-0
Sikai Wang, Youfeng Zhang, Yaping Feng, Bingzhe Ma, Yinling Wang, Wenzhu Zhang
{"title":"Mn-MOFs derived manganese-based oxide by regulating atmosphere as zinc-ion battery cathode","authors":"Sikai Wang,&nbsp;Youfeng Zhang,&nbsp;Yaping Feng,&nbsp;Bingzhe Ma,&nbsp;Yinling Wang,&nbsp;Wenzhu Zhang","doi":"10.1007/s10853-024-10483-0","DOIUrl":"10.1007/s10853-024-10483-0","url":null,"abstract":"<div><p>Manganese-based cathode materials have been widely developed and applied in aqueous zinc-ion batteries (ZIBs). Metal–organic frameworks exhibit remarkable advantages and promising application prospects in the realm of energy conversion and storage applications. Generating oxygen vacancies and nitrogen doping by calcining MOFs is an efficient approach to enhance the zinc storage capabilities of manganese oxides. Herein, δ-MnO<sub>2</sub> as the manganese source reacts with H<sub>3</sub>BTC at room temperature to form Mn-MOF, and calcined in air and nitrogen atmospheres to create Mn<sub>2</sub>O<sub>3</sub>/CC-A and MnO/CC-N, respectively. At a current density of 0.2 A/g, MnO/CC-N has an average discharge specific capacity of 211 mAh/g, which capacity retention rate is 88.5%. Additionally, Mn<sub>2</sub>O<sub>3</sub>/CC-A and MnO/CC-N have good rate performance, as their specific capacity is higher than the initial specific capacity when the current density is restored to 0.2 A/g. This work provides an effective strategy for developing water-based zinc-ion batteries with high specific capacity and good stability.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"22166 - 22180"},"PeriodicalIF":3.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Eu3+ ion incorporation characteristics and impact on defects in monoclinic HfO2
IF 3.5 3区 材料科学
Journal of Materials Science Pub Date : 2024-12-03 DOI: 10.1007/s10853-024-10474-1
Katrina Laganovska, Ivita Bite, Aleksejs Zolotarjovs, Virginija Vitola, Milena Dile, Ernests Einbergs, Madara Leimane, Gatis Tunens
{"title":"Eu3+ ion incorporation characteristics and impact on defects in monoclinic HfO2","authors":"Katrina Laganovska,&nbsp;Ivita Bite,&nbsp;Aleksejs Zolotarjovs,&nbsp;Virginija Vitola,&nbsp;Milena Dile,&nbsp;Ernests Einbergs,&nbsp;Madara Leimane,&nbsp;Gatis Tunens","doi":"10.1007/s10853-024-10474-1","DOIUrl":"10.1007/s10853-024-10474-1","url":null,"abstract":"<div><p>Lanthanide ions possess unique optical characteristics and can be used as luminescent probes; however, the characteristics and effect of lanthanide ion incorporation into metal-oxide host matrices have not been thoroughly researched up until now. In this study, we investigate the incorporation characteristics of <span>(hbox {Eu}^{3+})</span> such as whether threefold or fourfold-coordinated oxygen vacancies are created, the charge of the created oxygen vacancies, and whether the lanthanide ions incorporate in pairs or as single ions. Undoped, 5 at.% Eu and 5 at.% Eu, 5 at.% Nb-doped <span>(hbox {HfO}_2)</span> were synthesized by sol–gel and combustion methods. All samples were of monoclinic phase. Photoluminescence, thermoluminescence, XRD, and luminescence decay kinetics were used to determine the impact of dopants on the <span>(hbox {HfO}_2)</span> matrix. A mechanism for <span>(hbox {Eu}^{3+})</span> ion incorporation in pairs or individually is considered.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 48","pages":"22024 - 22033"},"PeriodicalIF":3.5,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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