Journal of the Australian Ceramic Society最新文献

Probing higher valences of uranium in nuclear materials using diffuse reflectance spectroscopy 利用漫反射光谱探测核材料中的高价铀

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-09-18 DOI: 10.1007/s41779-024-01090-y

Kaito Callan, Maria K. Nicholas, Timothy A. Ablott, Jamie J. Kruzic, Yingjie Zhang

{"title":"Probing higher valences of uranium in nuclear materials using diffuse reflectance spectroscopy","authors":"Kaito Callan, Maria K. Nicholas, Timothy A. Ablott, Jamie J. Kruzic, Yingjie Zhang","doi":"10.1007/s41779-024-01090-y","DOIUrl":"https://doi.org/10.1007/s41779-024-01090-y","url":null,"abstract":"Understanding uranium valences in nuclear materials is critical as it is known to influence both their physical and chemical properties. As such, the synthesis of uranium-containing materials with varied uranium oxidation states was achieved and their uranium valences, as determined by diffuse reflectance spectroscopy (DRS), herein reported. It was revealed that DRS was well suited to differentiating between U(IV), U(V) and U(VI) in these materials. The U(IV), visible as broad vibronic absorptions in the UV-vis region, U(V), present as sharp peaks arising from f-f transitions and thus restricted to the near-infrared region and U(VI), featured by broad charge transfer bands in the ultra-violet range, were successfully identified in mono-valent and mixed-valence materials. A particular sensitivity to U(V) was revealed, even when present as a minor species. Of particular note was the capability for DRS to determine the coordination environment about the U(V) centres, with a shift of the diagnostic peak to higher wavelengths when the uranium coordination number was changed from 6-fold to 7- and 8-fold. Highlighted in this work is the potential for DRS to be applied to the analysis of nuclear materials across the entirety of the nuclear fuel cycle, towards better understanding and improving their applications.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"208 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142267874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Rapid tetracycline degradation by S-scheme Se/g-C3N4 heterostructure 利用 S 型 Se/g-C3N4 异质结构快速降解四环素

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-09-17 DOI: 10.1007/s41779-024-01088-6

Haoran Li, Zhijun Guo, Hassanali Azimi, Mehdi Ebadi, Abbas Shirmardi, Ramin Yousefi

{"title":"Rapid tetracycline degradation by S-scheme Se/g-C3N4 heterostructure","authors":"Haoran Li, Zhijun Guo, Hassanali Azimi, Mehdi Ebadi, Abbas Shirmardi, Ramin Yousefi","doi":"10.1007/s41779-024-01088-6","DOIUrl":"https://doi.org/10.1007/s41779-024-01088-6","url":null,"abstract":"This research presents an efficient and stable photocatalyst for the removal of hospital pollutants, characterized by a rapid reaction rate and a cost-effective, straightforward synthesis process. The study focuses on enhancing the photocatalytic performance of graphitic carbon nitride (g-C3N4, abbreviated as g-CN) through selenium (Se), leading to the formation of Se/g-CN nanocomposites. These nanocomposites were synthesized via a sintering method in a tube furnace, with varying selenium concentrations (5%, 10%, and 15% of Se/g-CN ratio). X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy confirmed the formation of a heterostructure between Se and g-CN. Field emission scanning electron microscopy (FESEM) images revealed that selenium incorporation altered the porous morphology of pristine g-CN, transforming it into a flake-like structure in the Se/g-CN nanocomposites. Tetracycline (TC) antibiotic was used as the target pollutant, with the Se(10%)/g-CN nanocomposites achieving 96% degradation under 60 min of commercial, low-power light-emitting diode (LED) irradiation. Additionally, the Se/g-CN heterostructures demonstrated stable photocatalytic activity, maintaining their performance after four cycles of reuse. Band structure calculations indicated that Se/g-CN forms an S-scheme heterostructure, where photogenerated electrons in g-CN act as reducing agents, and photogenerated holes in Se function as oxidizing agents.","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"20 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142267876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Evaluation of the in vitro cytotoxicity and drug delivery of ytterbium (III)-doped versatile bioactive glasses for cancer treatment 用于癌症治疗的掺镱 (III) 多功能生物活性玻璃的体外细胞毒性和药物输送评估

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-09-17 DOI: 10.1007/s41779-024-01089-5

Aylin M. Deliormanlı, Harika Atmaca

{"title":"Evaluation of the in vitro cytotoxicity and drug delivery of ytterbium (III)-doped versatile bioactive glasses for cancer treatment","authors":"Aylin M. Deliormanlı, Harika Atmaca","doi":"10.1007/s41779-024-01089-5","DOIUrl":"https://doi.org/10.1007/s41779-024-01089-5","url":null,"abstract":"In this study, the in vitro mineralization, as well as an antitumor drug (fluorouracil) delivery of sol-gel-derived bioactive glasses doped with a lanthanide (III) element (Yb3+), have been investigated. Additionally, the cytotoxicity of the related bioactive glasses was examined against osteosarcoma SaOS-2 and osteoblastic MC3T3-E1 cell lines under in vitro conditions. The results demonstrated that the bioactive glass samples containing rare earth element did not induce cytotoxic effects on the mentioned cell lines for up to 7 days. An increase in alkaline phosphatase enzyme activity was observed for all samples during the incubation period. Drug loading experiments showed that the anticancer drug amount adsorbed onto the bioactive glass powders at pH 7.4 ranged between 25% and 35%. Based on the drug delivery studies conducted in phosphate-buffered saline solution at pH 7.4 and 5.5, cumulative drug release from the bioactive glass powders after 500 h was between 60% and 70% at neutral pH. A higher drug delivery was observed at lower pH value. The drug release kinetics were found to be consistent with the Higuchi model. The findings of this study indicate that bioactive glasses containing trivalent ytterbium possess suitable biological properties for use in biomedical applications and they offer improved biocompatibility providing an ideal environment for bone regeneration.","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"49 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142267875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effect of addition of varying percentages of barium titanate on the properties of beta-tricalcium phosphate 添加不同比例的钛酸钡对β-磷酸三钙特性的影响

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-09-05 DOI: 10.1007/s41779-024-01086-8

Yagmur Hafizoglu, Suleyman Serdar Pazarlioglu

{"title":"Effect of addition of varying percentages of barium titanate on the properties of beta-tricalcium phosphate","authors":"Yagmur Hafizoglu, Suleyman Serdar Pazarlioglu","doi":"10.1007/s41779-024-01086-8","DOIUrl":"https://doi.org/10.1007/s41779-024-01086-8","url":null,"abstract":"This study examines the effect of barium titanate addition at 3 different rates (BaTiO3; 1wt%, 3 wt% and 5 wt%) on the mechanical performance, in vitro bioactivity and morphological structure of beta tricalcium phosphate (β-TCP). The best results for β-TCP were achieved after sintering at 1200oC and with an average grain size of 5.077 ± 0.571 µ. However, sintering at 1250oC caused a 45% increase in the grain size of β-TCP, micro cracking and decomposition of 3.2% into alpha tricalcium phosphate (α-TCP) resulting in a decrease in its properties. Depending on the BaTiO3 ratio, 9 different phases with general chemical compositions of Bax/Cay-Tim-On, as well as α-TCP, were detected in the composites. As the sintering temperature and BaTiO3 ratio increased, the α-TCP ratio in the composites increased to 49.7%. The highest mechanical performances in composites were achieved at the sintering temperature of 1200oC and with the addition of 3wt%-BaTiO3. In vitro studies showed that the surface of this composite was completely covered with apatite on the 28th day.","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"29 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Modeling of calcium phosphate based on an LCD 3D printer using brushite and calcium hydroxide 使用刷石和氢氧化钙在液晶 3D 打印机上制作磷酸钙模型

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-09-05 DOI: 10.1007/s41779-024-01076-w

Yuta Otsuka, Tomohiro Masuzaki, Masahiro Nishimura, Hiroshi Kono, Masafumi Kikuchi

引用次数: 0

Assessment of antioxidant activity, thrombogenicity and MTT assay of bioceramic phosphate as a biomaterial 评估作为生物材料的生物陶瓷磷酸盐的抗氧化活性、血栓形成性和 MTT 试验

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-09-05 DOI: 10.1007/s41779-024-01083-x

Ranbir Kumar, Deep Shikha, Sanjay Kumar Sinha, José R. Guerra-López, Neda Aboudzadeh

{"title":"Assessment of antioxidant activity, thrombogenicity and MTT assay of bioceramic phosphate as a biomaterial","authors":"Ranbir Kumar, Deep Shikha, Sanjay Kumar Sinha, José R. Guerra-López, Neda Aboudzadeh","doi":"10.1007/s41779-024-01083-x","DOIUrl":"https://doi.org/10.1007/s41779-024-01083-x","url":null,"abstract":"Hydroxyapatite (HAP), a cornerstone of bone and teeth, has ignited interest due to its potential bioactivity and therapeutic implications. This study comprehensively assesses the multifaceted nature of HAP, delving into its antioxidant, thrombogenic, and cytocompatibility properties. HAP was synthesized via the sol-gel method, achieving a Ca/P ratio 1.66, confirmed by energy-dispersive X-ray spectroscopy (EDS). X-ray diffraction (XRD) verified compound formation, while Fourier transform infrared spectroscopy (FTIR) identified functional groups. Field emission electron microscopy revealed the surface morphology of HAP. Its structural characterization delves into HAP’s functional potential. Utilizing the DPPH (2,2-diphenyl-1-picrylhydrazyl) assay, pure HAP’s ability to neutralize free radicals, a symbol of antioxidant activity, was evaluated. Additionally, thrombogenic studies using the whole blood clotting assay explored HAP’s influence on blood clotting, a crucial factor for biocompatibility. The MTT (3-(4, 5-dimethythiazol-2-yl)-2, 5-diphenyl tetrazolium bromide) assay was employed in the L929 cell line to assess its interaction with living cells further, shedding light on HAP’s cytotoxicity or potential cell viability enhancement.","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"43 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Microstructure and Mechanistic analysis of high-calcium fused magnesia molten heap 高钙熔融氧化镁熔堆的微观结构和机理分析

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-09-04 DOI: 10.1007/s41779-024-01061-3

Xin Zhao, Jiegang You, Jingjing Yue, Xudong Luo, Beiyue Ma

引用次数: 0

Enhancing energy storage performance in barium titanate ceramics through mg-doping via creation of defect dipoles engineering 通过创建缺陷偶极子工程掺杂毫克，提高钛酸钡陶瓷的储能性能

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-09-04 DOI: 10.1007/s41779-024-01087-7

Mahmoud S. Alkathy, Yalambaku Rajesh, H. A. Kassim, Mansour K. Gatasheh, Fabio L. Zabotto, K. C. James Raju, Jose A. Eiras

{"title":"Enhancing energy storage performance in barium titanate ceramics through mg-doping via creation of defect dipoles engineering","authors":"Mahmoud S. Alkathy, Yalambaku Rajesh, H. A. Kassim, Mansour K. Gatasheh, Fabio L. Zabotto, K. C. James Raju, Jose A. Eiras","doi":"10.1007/s41779-024-01087-7","DOIUrl":"https://doi.org/10.1007/s41779-024-01087-7","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Enhancing the efficacy of energy storage materials is crucial for advancing contemporary electronic devices and energy storage technologies. This research focuses on boosting the energy storage capabilities of BaTiO3 ceramics through Mg2+ doping. Introducing Mg2+ ions into the BaTiO3 lattice induces defects and grain boundary effects, significantly influencing ferroelectric properties. Rietveld refinements of X-ray diffraction confirmed that both pure and Mg-doped samples show the same tetragonal phase. SEM analysis revealed a refined grain microstructure in the Mg2+ doped BT sample, which resulted in improved thermal stability and pinched ferroelectric hysteresis loops. Incorporating Mg2+ ions into the BT host lattice significantly enhanced energy storage density from 0.204 J/cm3 to 1.42 J/cm3 and efficiency rising from 21 to 89%. This enhancement is attributed to defect dipole engineering and the attainment of fine grain size. Furthermore, an examination of the electronic structure, overall density of states (DOS), and electronic density of both samples is undertaken. The defect dipole mechanism proposed in this study introduces a novel and promising strategy for developing high-performance energy storage in ferroelectric ceramics, holding great promise for next-generation applications.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"26 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Synthesis of BaAl2O4: Eu2+/Li+ co-doped spinel: study of crystal structure, microstructure, and photoluminescence characteristics 合成 BaAl2O4：Eu2+/Li+ 共掺尖晶石：晶体结构、微观结构和光致发光特性研究

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-09-02 DOI: 10.1007/s41779-024-01085-9

Seyed Mahdi Rafiaei, Mehrdad Ahmadi, Davoud Nikooghadam

{"title":"Synthesis of BaAl2O4: Eu2+/Li+ co-doped spinel: study of crystal structure, microstructure, and photoluminescence characteristics","authors":"Seyed Mahdi Rafiaei, Mehrdad Ahmadi, Davoud Nikooghadam","doi":"10.1007/s41779-024-01085-9","DOIUrl":"https://doi.org/10.1007/s41779-024-01085-9","url":null,"abstract":"In this research BaAl2O4: Eu2+/Li+ luminescent materials were synthesized through a facile solid-state approach at 1100 °C. To study the effect of Li+ ions, different amounts of LiCl were used within the synthesis of BaAl2O4-based compounds. The crystal structural, microstructure, surface characteristics, and photoluminescence properties were scrutinized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL), Fourier transform infrared (FTIR) analyses. It was shown that the addition of LiCl flux material results in very slight changes in the crystallographic properties of BaAl2O4 crystal structure while the use of LiCl has severely reduced the average particle size from about 225 nm to 120 nm. Upon the excitation procedure at the wavelength of 343 nm, BaAl2O4: Eu2+ shows a strong and wide emission in the range of 435–610 nm that is attributed to the 4f65d1-4f7 transition of Eu2+. The highest emission occurs when 2.5 wt% LiCl was utilized as flux material. Moreover, through the employment of XPS characterization, it was proved that the addition of Li+ ions causes higher binding energies of elements and improvement of crystallization.","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"132 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Development of CoFe2O4 decorated on polyaniline for optimizing oxygen evolution process in alkaline medium 开发聚苯胺上的 CoFe2O4 饰面，优化碱性介质中的氧气进化过程

IF 1.9 4区材料科学

Journal of the Australian Ceramic Society Pub Date : 2024-08-30 DOI: 10.1007/s41779-024-01082-y

Asma A. Alothman, Shafqat Manzoor, Jafar Hussain Shah, Saikh Mohammad, Abdul Ghafoor Abid, Shahroz Saleem

{"title":"Development of CoFe2O4 decorated on polyaniline for optimizing oxygen evolution process in alkaline medium","authors":"Asma A. Alothman, Shafqat Manzoor, Jafar Hussain Shah, Saikh Mohammad, Abdul Ghafoor Abid, Shahroz Saleem","doi":"10.1007/s41779-024-01082-y","DOIUrl":"https://doi.org/10.1007/s41779-024-01082-y","url":null,"abstract":"The development of inexpensive catalysts that perform extraordinarily well in the electrochemical oxygen evolution process (OER) is necessary for the quick development of renewable energy sources. To obtain a great effect of intrinsic activity and the exposure of interfacial active sites at a greater density is often recommended when designing active and effective catalysts for OER via water splitting to attain clean energy in the form of hydrogen. In present work, cobalt ferrite (CoFe2O4) and polyaniline (PANI) are combined to design cluster-based catalysts with robust efficiency. The CoFe2O4 nanoflakes in this instance are uniformly adorned with PANI to provide an electronic effect on the CoFe2O4 nanoflakes. Thus, the designed interface needs an overpotential of 151 mV for OER, which is steady for up to 80 h of testing. The exceptional activity and longstanding durability are a result of the higher revelation of active sites, and faster kinetic reactions. Furthermore, the resultant material shows a small 105 mV/dec Tafel slope, offering the outstanding performance. Hence, this work proposes a novel method for designing nanostructures and for quickly producing oxide heterostructures based on transition metals, which are useful for future electrochemical applications.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"16 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142177461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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