Next Materials最新文献

{"title":"Nitrogen-doped graphene quantum dots for ultrasensitive electrochemical detection of Cu²⁺ ions","authors":"Ahmad Dehghanzadeh ,&nbsp;Fatemeh Ahour ,&nbsp;Esmaeil Habibi","doi":"10.1016/j.nxmate.2026.101686","DOIUrl":"10.1016/j.nxmate.2026.101686","url":null,"abstract":"<div><div>The rational design of highly active and sustainable electrode materials is crucial for next-generation electrochemical monitoring systems. Herein, nitrogen-doped graphene quantum dots (N-GQDs) are introduced as an efficient sensing nanointerface for ultrasensitive Cu²⁺ detection. The N-GQDs were synthesized via a green, one-pot hydrothermal method and electrochemically deposited onto a glassy carbon electrode, ensuring strong interfacial coupling. Nitrogen doping modulates the graphene electronic structure, generating Lewis-basic sites that enhance Cu²⁺ adsorption and interfacial electron transfer. The stripping current of Cu²⁺ was evaluated using differential pulse anodic stripping voltammetry (DPASV) following electrochemical preconcentration. Under optimized conditions, the sensor exhibits high sensitivity with a low detection limit of 0.3 pM and a wide linear range from 1 pM to 10 μM. Excellent selectivity, stability, and reproducibility were achieved, and successful analysis of tap and river water samples with satisfactory recoveries confirms the practical applicability of the proposed platform for environmental monitoring. This study highlights N-GQDs as a scalable, sustainable, and functionally tunable electrode modifier for advanced electrochemical sensing applications.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101686"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure-property relationships in bio-based polyurethane/carbon nanotube composite coatings revealed by principal component analysis","authors":"Muhammad Abdurrahman Munir ,&nbsp;David Fernando ,&nbsp;Imam Shofid Alaih ,&nbsp;Fitria Rahmawati ,&nbsp;Abdul Rohman","doi":"10.1016/j.nxmate.2026.101665","DOIUrl":"10.1016/j.nxmate.2026.101665","url":null,"abstract":"<div><div>This study investigates the structural, thermal, morphological, and electrical properties of bio-based polyurethane (PU) composites reinforced with carbon nanotubes (CNTs). PU was synthesized using methylene diphenyl diisocyanate (MDI) and palm kernel oil-derived polyol, while CNTs were incorporated in varying concentrations (1 %, 2 %, 5 %, and 10 %) via a sonication-assisted solution casting method. The chemical structure and successful incorporation of CNTs were confirmed using Fourier Transform Infrared Spectroscopy (FTIR), revealing the preservation of the PU backbone and the presence of non-covalent interactions such as hydrogen bonding. Principal Component Analysis (PCA) of FTIR data demonstrated effective differentiation between PU and PU/CNT composites based on subtle changes in the fingerprint region. Field Emission Scanning Electron Microscopy (FESEM) confirmed a uniform and well-integrated dispersion of CNTs in the PU matrix, with minimal aggregation, supporting effective nanofiller incorporation. Thermal analyses using Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) revealed that CNTs improved the thermal stability, delayed decomposition onset, and increased residual char content, particularly at 5–10 wt% CNT. These enhancements were attributed to CNTs' barrier effect and high thermal conductivity. Electrochemical Impedance Spectroscopy (EIS) further demonstrated a significant reduction in bulk resistance with increasing CNT concentration, confirming enhanced electrical conductivity and the formation of conductive networks. The PU/CNT composites exhibited characteristic impedance behavior in line with the Randles circuit model, supporting their potential for electrochemical applications. Overall, the results indicate that CNT-reinforced PU composites possess enhanced thermal, structural, and electrochemical properties, making them promising candidates for flexible electronics, electrochemical sensors, and anti-corrosion coatings.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101665"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ether-based electrolytes for next-generation metal batteries: A nascent frontier in high-energy storage — A review","authors":"Sodiq Abiodun Kareem ,&nbsp;Olajesu Favor Olanrewaju ,&nbsp;Justus Uchenna Anaele ,&nbsp;Samuel Olumide Falana ,&nbsp;Michael Oluwatosin Bodunrin","doi":"10.1016/j.nxmate.2026.101648","DOIUrl":"10.1016/j.nxmate.2026.101648","url":null,"abstract":"<div><div>Utilizing ether-based electrolytes presents a viable approach for addressing the enduring challenges linked to lithium-metal batteries (LMBs), especially concerning solid-electrolyte interphase (SEI) stabilization and enhancement. By employing a comprehensive methodology involving detailed analysis of SEI formation kinetics, strategic modifications to the anode, and customized electrolyte compositions, we can unlock improved stability, ionic conductivity, and overall superior performance of LMBs. Using in-situ characterization methodologies such as x-ray photoelectron spectroscopy (XPS) is critical for comprehending the complex interplay between electrolyte composition, SEI characteristics, and their consequent effects on the behavior of the full cell. The investigation into innovative surface pre-treatments and electrolyte additives, along with a thorough assessment of their interactions, facilitates the systematic design of SEI layers that enable efficient and reversible lithium cycling. Additionally, thoroughly examining ether-based electrolytes in full-cell configurations, incorporating varied cathode materials and operational parameters is imperative for confirming their long-term cycling stability, safety, efficient charge/discharge processes, and compatibility with high-voltage systems. By amalgamating these research avenues, substantial progress is envisaged in the advancement of next-generation lithium-metal batteries characterized by high energy density, prolonged lifespan, and enhanced safety, thus paving the way for their widespread integration in a myriad of applications spanning from portable electronics to electric automobiles and high charging/discharging energy storage systems. The ongoing exploration of ether-based electrolytes, in conjunction with innovative SEI engineering tactics, signifies a critical stride towards realizing the full potential of this promising energy storage technology.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101648"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rare earth doped TiO2 thin film: A review on structural, optical, photocatalytic, magnetic, and electrical properties","authors":"Saidul Haque,&nbsp;Md. Masud Khan,&nbsp;Md. Sarowar Jahan,&nbsp;Abdul Ahad,&nbsp;Tasnim Alam Sayedi,&nbsp;Md. Irfan Khan,&nbsp;Tasratur Reaj Neha","doi":"10.1016/j.nxmate.2026.101661","DOIUrl":"10.1016/j.nxmate.2026.101661","url":null,"abstract":"<div><div>Rare earth (RE) doping become an effective strategy for enhancing the multifunctional properties of TiO₂ thin films, making them highly suitable for diverse advanced applications. This review explores how different RE dopants, including Cerium (Ce), Europium (Eu), Neodymium (Nd), Lanthanum (La), Erbium (Er), Lutetium (Lu), Yttrium (Y), and Terbium (Tb), affect the optical, structural, photocatalytic, morphological, and electrical behaviors of TiO₂ thin film. At lower doping concentrations and moderate annealing temperatures, TiO₂ typically maintains its anatase phase. However, specific dopants and higher concentrations can lead to phase transitions or a reduction in crystalline size. RE doping enhances photocatalytic activity by narrowing the band gap, improving charge separation, and increasing surface reactivity. Additionally, dopants influence the film's morphology, promoting porosity, refined grain sizes, and the formation of surface defects. The electrical and magnetic properties of TiO₂ thin films are also significantly modified, with improvements in conductivity, dielectric performance, and ferromagnetic behavior attributed to defect engineering and orbital interactions. RE doping is a powerful strategy for modifying the optical landscape of TiO₂ thin films, unlocking new functionalities through atomic-scale modifications. In this review, we discuss how specific dopants affect optical transmittance, shifts in the absorption edge, and the evolution of the band gap through systematic UV-Vis analysis. For instance, dopants like Eu and Lu significantly enhance optical transparency by reducing light scattering and utilizing Burstein–Moss-driven band filling, while Yb and Er lower the band gap, improving visible-light absorption through defect-mediated electronic restructuring. These dopant-induced phenomena not only redefine photon–semiconductor interactions but also establish design principles for next-generation optoelectronic and photocatalytic, spintronic, and sensing platforms based on TiO₂.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101661"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nonmetal polymeric material triggered threefold character: Conjugated with Sgc8 aptamer, catalytic reduction and cooxidant free oxidation","authors":"Sk Jahir Abbas ,&nbsp;Sabina Yesmin","doi":"10.1016/j.nxmate.2026.101642","DOIUrl":"10.1016/j.nxmate.2026.101642","url":null,"abstract":"<div><div>Nonmetal based polymeric materials are considered among the most promising candidates for modern applications. In light of this, we developed a modified polymeric carbon nitride material (NNOCN), which possesses the ability to conjugate with the Sgc8 aptamer, leading to the formation of the bionanomaterial (<em>1⸧</em>). NNOCN material is effective for the catalytic reduction of C3-substituted pyridine nucleotide and for the cooxidant free selective photooxidation of benzyl alcohols. The material was characterized through various analytical techniques, which indicated that it consists of a polymeric, sheet-like structure and is paramagnetic in nature. In contrast, the <em>1⸧</em> displayed a spherical morphology with a size range of 65–100 nm. In the catalytic reduction, the products of the substituted pyridine nucleotide moieties (3a and 3b in <span><span>table S2</span></span>, entry 2 and 6) were obtained in an excellent yield of 91 %. Furthermore, in the photooxidation reaction, the benzaldehyde products were produced with a high selectivity of 99.6 % and a conversion rate of 60.01 % (<span><span>Table 1</span></span>, entry 7).</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101642"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of relative humidity on the optical properties of sol–gel processed black spinel oxide coatings for solar absorbers","authors":"Federico Turci,&nbsp;Maxime Lagier,&nbsp;Anna Krammer,&nbsp;Andreas Schüler","doi":"10.1016/j.nxmate.2026.101643","DOIUrl":"10.1016/j.nxmate.2026.101643","url":null,"abstract":"<div><div>This study investigates the influence of relative humidity on the sol–gel deposition process of a multilayer black spinel oxide coatings for solar selective absorbers. Changes in humidity conditions during deposition were found to affect porosity, thickness, and optical properties, ultimately influencing the performance and reproducibility of the coatings. Under optimized conditions, we achieved a solar absorptance of 0.95 and a thermal emissivity of 0.16 at 100 °C. When applied to solar tubular receivers, the coatings maintained high performance with 0.95 absorptance and 0.15 emissivity, demonstrating uniformity along the tube. In addition, the aging of the solution and its sensitivity to ambient humidity were also taken into account. The solution remained effective for one week, meeting industrial durability requirements. In general, optimizing relative humidity enables the scalable, efficient, and cost-effective production of coatings for low- to mid-temperature solar applications.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101643"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanisms of molybdenum ions adsorption on gamma nanoalumina: A detailed analysis using kinetics and isotherms with radiotracer techniques","authors":"Emily Vivanco-Cuba ,&nbsp;Anaís Adauto ,&nbsp;Pablo Mendoza","doi":"10.1016/j.nxmate.2026.101584","DOIUrl":"10.1016/j.nxmate.2026.101584","url":null,"abstract":"<div><div>The adsorption of molybdenum ions from aqueous solutions was studied using commercial nanometric particles of gamma aluminum oxide (γ-Al₂O₃) measuring 5 and 80 nm, employing the radiotracer technique, which allowed working with trace concentrations and accurately monitoring the evolution of the species in solution. To characterize the process, kinetic and equilibrium studies were carried out in order to elucidate the adsorption mechanism and determine the maximum capacity. The results showed that the retention of molybdenum ions in γ-Al₂O₃ is rapid, occurring mainly in the first two minutes, and that the temporal evolution is adequately described by the pseudo-second-order model, indicating specific interactions between the molybdate anion and the alumina surface. The 5 nm γ-Al₂O₃ material showed a slightly higher adsorption capacity than the 80 nm γ-Al₂O₃, attributable to its larger specific surface area. According to the isothermal model, the maximum adsorption values (<em>q</em>_<em>m</em>) were 386.95 mg g⁻¹ for γ-Al₂O₃-5 nm and 368.20 mg g⁻¹ for γ-Al₂O₃-80 nm. These results demonstrate the high efficiency of γ-Al₂O₃ nanomaterials in molybdenum adsorption and highlight their potential application in ⁹⁹Mo/⁹⁹ᵐTc generator systems.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101584"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145980593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable β-cyclodextrin functionalized porous adsorbent for the selective elimination of cationic dyes from wastewater","authors":"Monark Bhatt ,&nbsp;Miraj Patel ,&nbsp;Sonal Thakore","doi":"10.1016/j.nxmate.2026.101672","DOIUrl":"10.1016/j.nxmate.2026.101672","url":null,"abstract":"<div><div>The development of sustainable and efficient adsorbents for wastewater treatment is of great importance in addressing environmental pollution caused by synthetic dyes. In this study, a porous organic polymer (BMQ) was synthesized via crosslinking of β-cyclodextrin (β-CD) with the natural polyphenol, quercetin. The BMQ polymer was characterized by solid state NMR, PXRD, FT-IR, BET, SEM and TGA, which confirmed the formation of a porous, multifunctional framework with abundant active sites. Batch adsorption experiments revealed that BMQ exhibits remarkable selectivity toward cationic dyes, achieving &gt; 95 % adsorption of crystal violet (CV) and rhodamine B (RhB), while depicting &lt; 5 % adsorption for Alizarin Red S (ARS) and &lt; 23.6 % for Fast Sulphon Black F (FSB) under optimized conditions. Adsorption equilibrium data were best described by the Langmuir isotherm, yielding maximum adsorption capacities (Q_max) of 234.08 mg/g and 255.02 mg/g at 323 K for CV and RhB, respectively. Kinetic studies indicated that the pseudo-second-order (PSO) model provided the best fit. Thermodynamic analyses confirmed that the adsorption process is endothermic and spontaneous. Furthermore, BMQ demonstrated excellent recyclability, retaining high adsorption efficiency (&gt;81.5 %) over five successive cycles. These findings highlight the potential of BMQ as a robust, high-capacity, and reusable adsorbent for the efficient removal of toxic cationic dyes from contaminated water, contributing to sustainable water purification strategies.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101672"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a luminescent gas sensor based on sulfur quantum dots (SQDs) for ethyl mercaptan detection","authors":"Adhila F. Sanches ,&nbsp;Cauã L.R. dos Santos ,&nbsp;Gricirene S. Correia ,&nbsp;Leonis Luz Lourenço ,&nbsp;Severino Alves Júnior ,&nbsp;Leonardo T.B. Mendonça","doi":"10.1016/j.nxmate.2026.101591","DOIUrl":"10.1016/j.nxmate.2026.101591","url":null,"abstract":"<div><div>This research describes the development of a luminescent gas sensor using sulfur quantum dots (SQD’s) and an LED, demonstrating the potential of s-dots for rapid and sensitive detection of gases like ethyl mercaptan. The study showcases a low-cost and efficient system for gas detection, utilizing the properties of SQD’s deposited on the LED surface and capture of luminescence variation by a cheap photoresistor. Transmission electron microscopy (TEM), X ray diffraction (XRD), Fourier Transform Infrared (FTIR), UV–vis and photoluminescence characterization technique were used. TEM results showed a nearly spherical-shape and an average size distribution of 2.9 ± 0.02 nm. Characteristic signals of vibrational modes S-S and S<img>O bonds were identified through FTIR. XRD revealed the semi crystalline nature sample’s, with sharp peaks indicating the presence of precursor sulfur and its oxidized compounds alongside a broad band centered at 20°. The tests with the gas sensor for ethyl mercaptan proved highly effective for detecting between 0.5 and 7.0 ppm range, with a response and recovery time of 91 and 31 s, respectively.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101591"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145980666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced surface properties of coralline hydroxyapatite from natural resources of Depapre Coast, Papua","authors":"Octolia Togibasa ,&nbsp;Khaeriah Dahlan ,&nbsp;Benny Abraham Bungasalu ,&nbsp;Krista Maya Ansanay ,&nbsp;Himawan ,&nbsp;Lalu Panji Imam Agamawan","doi":"10.1016/j.nxmate.2026.101628","DOIUrl":"10.1016/j.nxmate.2026.101628","url":null,"abstract":"<div><div>Hydroxyapatite (HAp) is gaining significant attention because of the structural similarity to bone mineral and versatile applications in both biomedical and environmental fields. Therefore, this study aimed to synthesize coralline HAp from dead coral collected along the Depapre coast, Papua, through calcination of coral powder and precipitation, followed by surface modification using potassium hydroxide (KOH) at two concentrations (0.5 M and 2.5 M). The structural and physicochemical properties of the materials were characterized by XRD, FTIR, SEM-EDS, and BET analyses. The results showed that CaCO₃ was successfully transformed into crystalline HAp with characteristic phosphate and hydroxyl groups, while SEM-EDS had porous morphologies and Ca/P ratios consistent with HAp. BET analysis showed that Depapre-derived coralline HAp had an exceptionally high surface area (&gt;500 m²/g), significantly greater than typical values reported for synthetic HAp. Mild KOH activation (0.5 M) further enhanced porosity and adsorption-relevant surface properties, while concentrated treatment (2.5 M) led to partial re-carbonation and decreased surface area. These results showed that coral-derived HAp from Depapre provided a sustainable and highly porous material with promising potential for heavy metal adsorption and other environmental applications.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101628"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}