Fan Feng, Dariusz Mitoraj, Ruihao Gong, Dandan Gao, Mohamed M. Elnagar, Rongji Liu, Radim Beranek and Carsten Streb
{"title":"Correction: High-performance BiVO4 photoanodes: elucidating the combined effects of Mo-doping and modification with cobalt polyoxometalate","authors":"Fan Feng, Dariusz Mitoraj, Ruihao Gong, Dandan Gao, Mohamed M. Elnagar, Rongji Liu, Radim Beranek and Carsten Streb","doi":"10.1039/D5MA90022K","DOIUrl":"https://doi.org/10.1039/D5MA90022K","url":null,"abstract":"<p >Correction for ‘High-performance BiVO<small><sub>4</sub></small> photoanodes: elucidating the combined effects of Mo-doping and modification with cobalt polyoxometalate’ by Fan Feng <em>et al.</em>, <em>Mater. Adv.</em>, 2024, <strong>5</strong>, 4932–4944, https://doi.org/10.1039/D4MA00089G.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 8","pages":" 2701-2701"},"PeriodicalIF":5.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma90022k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830650","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}
Basma A. Omran, M. O. Abdel-Salam, Hebatullah H. Farghal, Mayyada M. H. El-Sayed and Kwang-Hyun Baek
{"title":"Synthesis of TiO2–CuO@graphene oxide hybrid bionanocomposite with enhanced antibacterial and organic dye degradation activities†","authors":"Basma A. Omran, M. O. Abdel-Salam, Hebatullah H. Farghal, Mayyada M. H. El-Sayed and Kwang-Hyun Baek","doi":"10.1039/D5MA00031A","DOIUrl":"https://doi.org/10.1039/D5MA00031A","url":null,"abstract":"<p >The cumulative spread of infectious diseases and water pollution necessitates the development of innovative green materials. To address this challenge, titanium oxide (TiO<small><sub>2</sub></small>) and copper oxide (CuO) nanoparticles (NPs) were mycofabricated using <em>Trichoderma virens</em> filtrate, which was grafted with graphene oxide (GO) nanosheets prepared <em>via</em> the modified Tour's method, resulting in a TiO<small><sub>2</sub></small>–CuO@GO bionanocomposite. XRD revealed peaks corresponding to hexagonal carbon, rutile tetragonal TiO<small><sub>2</sub></small>, and tenorite monoclinic CuO in the TiO<small><sub>2</sub></small>–CuO@GO, having average crystallite sizes of 10.65 and 25.73 nm for GO and TiO<small><sub>2</sub></small>–CuO@GO, respectively. FTIR revealed distinct absorption bands corresponding to oxygen-containing functional groups such as –OH, C<img>O, C<img>C, and C–OH. EDX spectra confirmed homogenous elemental distributions of Ti 2p, Cu 2p, O 1s, and C 1s in the bionanocomposite. The zeta potential values and hydrodynamic sizes were −36.8 mV and 291.1 nm for GO and +25.6 mV and 603.2 nm for TiO<small><sub>2</sub></small>–CuO@GO, respectively. FE-SEM and HRTEM revealed that GO displayed a transparent, flaky structure with few wrinkles, whereas TiO<small><sub>2</sub></small>–CuO@GO displayed opaque, rounded TiO<small><sub>2</sub></small> NPs and elongated, rod-shaped CuO NPs loaded onto GO. The bionanocomposite exhibited potent antibacterial activity against various foodborne and phytobacterial pathogens. TiO<small><sub>2</sub></small>–CuO@GO was evaluated as a nanocatalyst for the degradation of Congo red at initial concentrations ranging from 10 to 50 mg L<small><sup>−1</sup></small>. Upon activation with peroxymonosulfate, the material demonstrated a degradation efficiency of 70% within 28 min. Enhanced dye removal under saline conditions indicated the improved efficiency of the nanocatalyst. This study highlights the multidisciplinary potential of TiO<small><sub>2</sub></small>–CuO@GO for applications in food packaging, agriculture, and wastewater treatment.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 8","pages":" 2654-2676"},"PeriodicalIF":5.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00031a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830647","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}
Nguyen Thi Huyen, Tran Ai Suong Suong, Cao Thi Thanh, Pham Van Trinh, Nguyen Van Tu, Bui Hung Thang, Tran Van Hau, Pham Thanh Binh, Vu Duc Chinh, Pham Van Hai, Vu Xuan Hoa, Tran Van Tan, Phan Ngoc Minh, Hiroya Abe and Nguyen Van Chuc
{"title":"A new and facile preparation of 3D urchin-like TiO2@graphene core@shell SERS substrates for photocatalytic degradation of RhB†","authors":"Nguyen Thi Huyen, Tran Ai Suong Suong, Cao Thi Thanh, Pham Van Trinh, Nguyen Van Tu, Bui Hung Thang, Tran Van Hau, Pham Thanh Binh, Vu Duc Chinh, Pham Van Hai, Vu Xuan Hoa, Tran Van Tan, Phan Ngoc Minh, Hiroya Abe and Nguyen Van Chuc","doi":"10.1039/D5MA00040H","DOIUrl":"https://doi.org/10.1039/D5MA00040H","url":null,"abstract":"<p >Here, we present a new and facile method to grow a graphene (Gr) shell layer on the surface of a 3D urchin-like TiO<small><sub>2</sub></small> core layer (TiO<small><sub>2</sub></small>@Gr) on a silicon (Si/SiO<small><sub>2</sub></small>) substrate as a surface enhanced Raman scattering (SERS) substrate for detecting and degrading rhodamine B (RhB) under UV irradiation. The core layer of 3D urchin-like TiO<small><sub>2</sub></small> (UT) was fabricated by a hydrothermal method and a Gr shell layer was grown on the surface of the TiO<small><sub>2</sub></small> core layer by a thermal chemical vapor deposition (CVD) method with sodium deoxycholate (SDC) surfactant as a carbon source. The obtained results indicated that the minimum detectable concentration of RhB on the TiO<small><sub>2</sub></small>@Gr/SERS substrate-coated graphene (UTG) can reach 1 × 10<small><sup>−9</sup></small> M with an enhancement factor (EF) of 1.3 × 10<small><sup>5</sup></small>. The enhancement of the Raman signals of the UTG can be generated because the graphene acts as the electron acceptor of TiO<small><sub>2</sub></small> and prevents charge recombination, and provides indirect charge transfer from TiO<small><sub>2</sub></small> to RhB molecules. The UTG SERS substrate can almost completely decompose RhB with a degradation rate of 0.069 min<small><sup>−1</sup></small> under UV irradiation at 254 nm within 80 min. The photocatalytic degradation mechanism of UTGs towards RhB was also presented in detail. The results show that the UTG SERS substrate can be further employed for detecting substances and degrading hazardous pollutants.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 8","pages":" 2691-2700"},"PeriodicalIF":5.2,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00040h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830649","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}
Zeynep Pinar Haslak, Hasan Can Gulbalkan, Seda Keskin
{"title":"Rational design of lanthanide-based metal-organic frameworks for CO<sub>2</sub> capture using computational modeling.","authors":"Zeynep Pinar Haslak, Hasan Can Gulbalkan, Seda Keskin","doi":"10.1039/d5ma00017c","DOIUrl":"10.1039/d5ma00017c","url":null,"abstract":"<p><p>Metal organic frameworks (MOFs) have emerged as promising materials in the context of CO<sub>2</sub> capture and separation. Thanks to their tunable nature, various functionalities can be introduced to improve their separation performances. Lanthanide MOFs (Ln-MOFs) with high coordination numbers offer a promising space for the design of new high-performing and stable adsorbents for gas adsorption and separation. In this study, we combined molecular simulations with quantum mechanical (QM) calculations for designing new hypothetical materials offering superior CO<sub>2</sub>/N<sub>2</sub> separation performances. An Ln-MOF having high CO<sub>2</sub>/N<sub>2</sub> selectivity and working capacity was originally selected and its linkers were exchanged with five different types of linkers and its metal atom was exchanged with 12 different Ln<sup>3+</sup> metals to generate 77 different types of hypothetic Ln-MOFs. Following the initial geometry optimizations at the molecular mechanics (MM) level, these structures were studied for CO<sub>2</sub>/N<sub>2</sub> separation by performing grand canonical Monte Carlo (GCMC) simulations. Five MOFs were found to outperform the original Ln-MOF structure and they were optimized at the QM level to obtain geometries with minimized total energy, which finally led to two hypothetic Ln-MOFs offering superior CO<sub>2</sub>/N<sub>2</sub> separation performance. The computational work that we described in this study will be useful for the rational design of new Ln-based MOFs with improved CO<sub>2</sub> separation properties.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11955875/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772343","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}
Alfredo Blázquez Martínez, Andreas Ost, Goran Dražić, Maja Koblar, Andreja Benčan, Torsten Granzow, Yves Fleming, Alexander Ost, Emmanuel Defay, Mael Guennou and Sebastjan Glinšek
{"title":"Epitaxial PbZrO3 films from chemical solutions†","authors":"Alfredo Blázquez Martínez, Andreas Ost, Goran Dražić, Maja Koblar, Andreja Benčan, Torsten Granzow, Yves Fleming, Alexander Ost, Emmanuel Defay, Mael Guennou and Sebastjan Glinšek","doi":"10.1039/D4MA01155D","DOIUrl":"https://doi.org/10.1039/D4MA01155D","url":null,"abstract":"<p >Lead zirconate (PbZrO<small><sub>3</sub></small>) stands out as the prototypical antiferroelectric material, often studied for its applications in link capacitors and actuators. However, the conventional fabrication of single crystal films necessitates costly vacuum techniques and face scalability challenges. Exploiting scalable solution-based methods could unlock their full potential at reduced costs. Here, a chemical route for the preparation of high-quality single-crystal PbZrO<small><sub>3</sub></small> thin films on Nb-doped SrTiO<small><sub>3</sub></small> substrates is presented. Films with different thicknesses were grown and their structure was characterized by X-ray diffraction and transmission electron microscopy. Metal–insulator–metal capacitors were built to study their electrical switching characteristics. An unexpected ferroelectric-like switching is observed in 170 nm-thick film, while antiferroelectric-like switching is observed in 680 nm-thick films. The presence of ferroelectric-like switching is associated with the defect formation during the high-temperature annealing of the films.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 8","pages":" 2648-2653"},"PeriodicalIF":5.2,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01155d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830646","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}
Mohammad Tashakkori Masuleh, Masood Hasheminiasari and Rouholah Ashiri
{"title":"Enhanced photocatalytic efficiency of eco-friendly synthesized ZnO for rapid full degradation of methylene blue dye","authors":"Mohammad Tashakkori Masuleh, Masood Hasheminiasari and Rouholah Ashiri","doi":"10.1039/D5MA00026B","DOIUrl":"https://doi.org/10.1039/D5MA00026B","url":null,"abstract":"<p >The rapid advancement of industry and economic development have enhanced productivity, urbanization, and living standards; but uncontrolled emissions of pollutants from various industries have adversely affected the environment. Organic dyes in industrial wastewater represent a significant source of pollution, causing serious risks to aquatic environments and public health due to their high stability and resistance to breakdown. An effective strategy for eliminating these contaminants is the application of photocatalytic semiconductors like ZnO. In this study, ZnO nanoparticles were synthesized <em>via</em> a modified sol–gel method utilizing three different solvents (ethanol, 1-propanol and 1,4-butanediol), investigating the influence of solvent type on their structural and photocatalytic characters. The results indicate that the samples synthesized with ethanol exhibit superior photocatalytic efficacy in the degradation of methylene blue (MB), achieving a pollutant elimination efficiency of 98% within a brief duration. This study demonstrates that selecting an appropriate solvent substantially influences the final characteristics of ZnO leading to a marked enhancement in its photocatalytic efficacy.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 8","pages":" 2611-2621"},"PeriodicalIF":5.2,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00026b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830643","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}
Youssef Ettahiri, Abdessalam Bouddouch, Brahim Akhsassi, Anass Khali, Lahcen Bouna, Abdeljalil Benlhachemi and Luis Pérez-Villarejo
{"title":"Optimized porous alkali-activated material for superior dye removal: synthesis and performance analysis","authors":"Youssef Ettahiri, Abdessalam Bouddouch, Brahim Akhsassi, Anass Khali, Lahcen Bouna, Abdeljalil Benlhachemi and Luis Pérez-Villarejo","doi":"10.1039/D4MA01065E","DOIUrl":"https://doi.org/10.1039/D4MA01065E","url":null,"abstract":"<p >In this study, a porous alkali-activated material was employed as an efficient adsorbent for the removal of methylene blue (MB). The material, referred to as GP-NC, was synthesized through geopolymerization by activating natural clay (NC) with an alkaline activator solution and incorporating H<small><sub>2</sub></small>O<small><sub>2</sub></small> to induce pore formation within the matrix. The structure, microstructure, and morphology of the samples were extensively characterized using a variety of techniques, including XRD, <small><sup>29</sup></small>Si and <small><sup>27</sup></small>Al MAS NMR, FTIR, DTA/TGA, BET, SEM, and TEM. The formation of alkali-activated material was confirmed through XRD, <small><sup>29</sup></small>Si, and <small><sup>27</sup></small>Al MAS NMR analyses. The GP-NC exhibited a significantly higher surface area (30.23 m<small><sup>2</sup></small> g<small><sup>−1</sup></small>) compared to NC (15.28 m<small><sup>2</sup></small> g<small><sup>−1</sup></small>). Additionally, FTIR and SEM analyses validated the successful adsorption of methylene blue (MB) onto the alkali-activated material. These findings offer valuable insights into the structural properties and adsorption performance of GP-NC, emphasizing its potential as an effective adsorbent for methylene blue removal from aqueous solutions. The sorption process was best described by the pseudo second order kinetic model and the Langmuir isotherm model, with a maximum adsorption capacity of 98.95 mg g<small><sup>−1</sup></small> at 25 °C. Furthermore, the calculated mean free energy (<em>E</em>) using the Dubinin-Radushkevich model suggests that the adsorption of MB onto GP-NC follows a physisorption mechanism.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 7","pages":" 2435-2447"},"PeriodicalIF":5.2,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d4ma01065e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740475","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}
Paula Zwicker, Melanie Hornschuh, Thomas Schmidt, Jan Schäfer, Carsten Becker-Willinger, Marlon Jochum, Axel Kramer and Gerald Müller
{"title":"A biocompatible polylactide-ε-caprolactone polymer coated with poly(hexamethylene biguanide) displays antibacterial properties against slime-producing S. epidermidis†","authors":"Paula Zwicker, Melanie Hornschuh, Thomas Schmidt, Jan Schäfer, Carsten Becker-Willinger, Marlon Jochum, Axel Kramer and Gerald Müller","doi":"10.1039/D5MA00013K","DOIUrl":"https://doi.org/10.1039/D5MA00013K","url":null,"abstract":"<p > <em>Introduction</em>: produced by renewable resources, biodegradable polymers with their competitive mechanical properties, thermal stability and biocompatibility are important alternatives to other synthetic materials for use in medical devices, <em>i.e.</em> endotracheal suction catheters. However, infected catheters may lead to nosocomial infections, such as lower respiratory tract infections, with mechanical ventilation being a major risk for these. Antimicrobially coated endotracheal suction catheters may be one measure to reduce this risk. <em>Methods</em>: two procedures using ethanol and sodium hydroxide were tested to immobilize poly(hexamethylene biguanide) (PHMB) to polylactide-ε-caprolactone (PLA-ε-CL). The cytocompatibility of the coating was verified <em>via</em> the MTT assay and cytokine analysis in a cell monolayer and in a 3D mucosa model. The antimicrobial efficacy was tested using <em>S. epidermidis</em>; after this bacterial contamination and the adherence and viability of cells were tested. Chemical surface analysis has been performed with pristine and PHMB-coated specimens by means of infrared spectroscopy (ATR-FTIR). <em>Results</em>: with both applied coating procedures, PHMB could be immobilized onto the PLA-ε-CL surface. The biocompatibility of PLA-ε-CL was not impaired by the PHMB coating. IL-1α was slightly but significantly increased. Reduction of <em>S. epidermidis</em> was about 4 lg-levels after 6 h of incubation. Contamination of the surface prior to cell culture did not impair the adherence of the cells. <em>Conclusion</em>: we demonstrated that PLA-ε-CL coated with PHMB has good biocompatible properties with antimicrobial activity thus revealing the polymer to be a suitable material for the development of medical devices that are able to prevent bacterial contaminations and infections.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 7","pages":" 2423-2434"},"PeriodicalIF":5.2,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00013k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740474","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}
Chiara Biribicchi, Michael Doutre and Gabriele Favero
{"title":"Correction: Characterization and assessment of cleaning systems based on fatty acid methyl esters (FAMEs) for the removal of wax-based coatings from cultural heritage objects","authors":"Chiara Biribicchi, Michael Doutre and Gabriele Favero","doi":"10.1039/D5MA90018B","DOIUrl":"https://doi.org/10.1039/D5MA90018B","url":null,"abstract":"<p >Correction for ‘Characterization and assessment of cleaning systems based on fatty acid methyl esters (FAMEs) for the removal of wax-based coatings from cultural heritage objects’ by Chiara Biribicchi <em>et al.</em>, <em>Mater. Adv.</em>, 2024, <strong>5</strong>, 9359–9375, https://doi.org/10.1039/D4MA00781F.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 7","pages":" 2448-2448"},"PeriodicalIF":5.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma90018b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740476","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}
Zein El Abidine Aly Taleb, Ikhlas Kachou, Kamel Saidi, Mohamed Dammak, Irene Mediavilla and Juan Jiménez
{"title":"Advanced dual-mode Er3+/Yb3+ phosphors for high-precision optical thermometry across broad temperature ranges†","authors":"Zein El Abidine Aly Taleb, Ikhlas Kachou, Kamel Saidi, Mohamed Dammak, Irene Mediavilla and Juan Jiménez","doi":"10.1039/D5MA00108K","DOIUrl":"https://doi.org/10.1039/D5MA00108K","url":null,"abstract":"<p >Dual-mode light-emitting phosphors play a vital role in advanced technologies and functions as they constitute optical thermometers for a wide range of temperature environments. This study presents a novel Er<small><sup>3+</sup></small>/Yb<small><sup>3+</sup></small> co-doped NaCaY(MoO<small><sub>4</sub></small>)<small><sub>3</sub></small> (NCYM) phosphor synthesized <em>via</em> the sol–gel method for precise optical thermometry across a broad temperature range (300–510 K). The research includes an in-depth analysis of the crystal structure, morphology, optical properties, and decay kinetics. The luminescence mechanism and energy transfer processes were elucidated, with NCYM:Er<small><sup>3+</sup></small>/Yb<small><sup>3+</sup></small> phosphors efficiently activated under 980 nm and 325 nm laser excitation. These excitations produced <small><sup>2</sup></small>H<small><sub>11/2</sub></small>/<small><sup>4</sup></small>S<small><sub>3/2</sub></small> → <small><sup>4</sup></small>I<small><sub>15/2</sub></small> transitions <em>via</em> up-conversion (UC) and down-conversion (DC) mechanisms, respectively. A dual-mode optical thermometry system was developed, combining DC and UC approaches for simultaneous evaluation. At 300 K, the maximum relative sensitivities (<em>S</em><small><sub>r-max</sub></small>) were 1.2% K<small><sup>−1</sup></small> (DC) and 1.045% K<small><sup>−1</sup></small> (UC), while at 510 K, the maximum absolute sensitivities (<em>S</em><small><sub>a-max</sub></small>) reached 15.17 × 10<small><sup>−3</sup></small> K (DC) and 12.15 × 10<small><sup>−3</sup></small> K (UC). The system demonstrated exceptional temperature resolution, with uncertainties (δ<em>T</em>) below 0.313 K, covering the full range of 300 to 510 K. This work positions NCYM:Er<small><sup>3+</sup></small>/Yb<small><sup>3+</sup></small> phosphors as highly promising materials for precise optical temperature sensing in a variety of advanced applications.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 7","pages":" 2385-2396"},"PeriodicalIF":5.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00108k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740444","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}