Nano-Structures & Nano-Objects最新文献

{"title":"Facile synthesis of potassium doped FeS2 nanofertilizers to enhance seed germination and plant growth in S22 tomato seeds","authors":"Samreen Naz G.S ,&nbsp;Soundarya T.L ,&nbsp;Krishna ,&nbsp;Nagaraju G","doi":"10.1016/j.nanoso.2025.101490","DOIUrl":"10.1016/j.nanoso.2025.101490","url":null,"abstract":"<div><div>Nanofertilizers (NFs) provide a sustainable and effective alternative to commercial fertilizers at the nanoscale and they have been praised for their agricultural efficiency. NFs are designed to enhance plant growth and soil health while reducing the environmental footprint of commercial fertilizers. This study focuses on the synthesis and characterization of Potassium-doped Iron disulfide nanoparticles (K-doped FeS₂ or KFS NPs). KFS is essential for plant metabolism and stress tolerance, with FeS₂ known for its role in improving soil micronutrient availability and sulfur content. A simple green synthesis approach was used to produce KFS NPs with <em>Arachis hypogaea</em> peel as a fuel. The structural and morphological properties of the NFs were confirmed using advanced techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), as well as elemental analysis, EDAX and Fourier transform infrared spectroscopy (FT-IR). XRD patterns are strongly aligned with the standard JCPDS No. 71–53 of FeS_2, signifying that they belong to the cubic pyrite phase with all the sides of the crystal being equal to 5.4281 Å, associated with the Pa-3 space group. TEM analysis shows the cubic structures of KFS NPs and demonstrates significant germination at a dosage of 20 mg/2 mL. KFS NPs were more effective than commercial fertilizers in enhancing plant growth, chlorophyll and carotenoid levels. Plants treated with NFs have a higher chlorophyll content of 22.41 mg/g than plants treated with commercial fertilizer (11.07 mg/g) and control (4.3 mg/g). KFS-treated (foliar spray) tomatoes have a higher carotenoid content (14.87 mg/g) compared to Control (3.55 mg/g) and commercial fertilizer (6.55 mg/g). The concentration of ascorbic acid was highest in the test sample of (67.7 mg/mL) of KFS-treated tomato and protein content was found to be highest in KFS-NPs-treated tomatoes (2139.956 µg/mL). Findings suggest that KFS NFs hold the multifunctional role in agriculture. It provides an eco-friendly approach to address global challenges such as nutrient inefficiency, soil degradation and environmental pollution.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101490"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123555","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 synthesis and application of green deep eutectic solvent in chalcopyrite leaching: A combined experimental and molecular dynamic simulation approach","authors":"S. Karimi ,&nbsp;P. Mohammadpour ,&nbsp;M. Esmailzadeh ,&nbsp;M. Izadi","doi":"10.1016/j.nanoso.2025.101481","DOIUrl":"10.1016/j.nanoso.2025.101481","url":null,"abstract":"<div><div>In this study, the chemical dissolution of chalcopyrite in a deep eutectic solvent (DES) solvent with a combination of choline chloride (ChCl) and maleic acid (MA) was investigated. Using the Taguchi experimental design, three parameters were optimized: leaching time (2–24 h), leaching temperature (100–200 °C), and the mol ratio of ChCl to MA (1:2, 1:1, and 2:1). The results of the Taguchi design showed that increasing temperature and time enhances copper recovery. Under optimal conditions for dissolving chalcopyrite at a ChCl:MA ratio of 1:1, with a leaching temperature of 150 °C and a leaching time of 24 h, copper recovery was approximately calculated as about 49.2 %, which is relatively consistent with experiment results showing 52.6 %. Under optimal conditions, XRD and SEM-EDS analyses of leaching residues show no sulfur film formation on chalcopyrite surfaces. Instead, they indicate elevated levels of SiO₂, FeS₂, and CuS, suggesting these phases have limited solubility in DES. Combining ChCl and MA forms a DES with altered infrared spectra due to hydrogen bonding, allowing for stable reuse after metal separation via precipitation or electrolysis methods. Cyclic voltammetry (CV) results show that chalcopyrite dissolution in DES is a chemical process, occurring without oxidation reactions. Molecular dynamic (MD) simulations explored interactions in an MA and ChCl DES. Radial distribution function (RDF) analysis revealed strong interactions between MA's hydroxyl hydrogens as well as ChCl's chloride, and intramolecular hydrogen bonds within MA. Simulations also showed Cu²⁺ and Fe²⁺ ions interact strongly with chloride ions of ChCl and oxygen atoms of MA, with low diffusion coefficients suggesting a 3D hydrogen bond network.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101481"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887381","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":"Recent progress in materials design strategies for efficient CO2 photocatalytic conversion","authors":"Yusuf Olatunji Waidi ,&nbsp;Qasem Ahmed Drmosh ,&nbsp;Abdo Hezam","doi":"10.1016/j.nanoso.2025.101489","DOIUrl":"10.1016/j.nanoso.2025.101489","url":null,"abstract":"<div><div>The urgent need to combat climate change has driven researchers worldwide to focus on creating effective and sustainable solutions to reduce carbon dioxide (CO₂) emissions. Among these approaches, photocatalytic CO₂ conversion has arisen as a viable avenue, harnessing solar energy to convert CO₂ into valuable fuels and chemicals. This article thoroughly overviews the latest advances in novel materials, including metal oxides, carbon-based nanomaterials, semiconductor heterostructures, and molecular catalysts for developing an efficient photocatalytic CO₂ conversion. Key findings from diverse studies elucidating these materials' structure-property relationships, mechanisms, and performance benchmarks are discussed in detail. Furthermore, the review underscores recent breakthroughs, such as innovative nanostructures, surface modifications, and novel catalyst designs, that have significantly contributed to improving the selectivity, stability, and overall efficiency of CO₂ conversion. Understanding and leveraging these advancements in novel materials hold immense potential to pave the way for scalable and sustainable photocatalytic CO₂ reduction technologies, addressing environmental concerns and energy demands.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101489"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168852","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":"Adsorption and sensor properties of NO2 and SO2 gases by Palladium and Silicon modified fullerene material: A computational study","authors":"Edak K. Agi-Odey ,&nbsp;Idongesit J. Mbonu ,&nbsp;Israel A. Ekoro ,&nbsp;Musa Runde","doi":"10.1016/j.nanoso.2025.101488","DOIUrl":"10.1016/j.nanoso.2025.101488","url":null,"abstract":"<div><div>The emission of various air pollutants from industrial plants, and fossil burning among others as a result of the progressive improvement in industrialization, technology, and urbanization cannot be fully curtailed. Hence, a need to detect and monitor air pollutants from a distance. Herein, the sensor performances of a newly modeled palladium-encapsulated silicon-doped carbon-based fullerene (Si-Pd@C₈₀) nanostructured towards the adsorption of NO₂ and SO₂ gas pollutants have been studied through density functional theory (DFT) calculations at the PW6B95-D3/GenECP/LanL2DZ/Def2-SVP method. The energy gap of the complexes is 0.026 eV for Si_Pd@C₈₀, 0.022 eV for NO₂_n_Si_Pd@C₈₀, 0.032 eV for NO₂_o_Si_Pd@C₈₀, 0.009 eV for SO₂_o_Si_Pd@C₈₀ and 0.017 eV for SO₂_s_Si_Pd@C₈₀ respectively. The adsorption energy of the two complexes formed after the adsorption of the NO₂ gas molecule is quantified as −3.983 and −4.785 eV corresponding to NO₂-n-Si-Pd@C₈₀ and NO₂-o-Si-Pd@C₈₀ respectively while the adsorption of SO₂ gas molecules on the Si-Pd@C₈₀ surface exhibits relatively stronger adsorption than the adsorption of NO₂ gas on the same surface. The conclusive report shows that the modeled palladium-encapsulated silicon-doped fullerene (Si-Pd@C₈₀) surface might be used as a potential nanostructure material for the detection of SO₂ gas pollutants.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101488"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138355","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":"Investigation of the photocatalytic activity of metal oxide nanoparticles and their derived composites","authors":"S.Yu. Sokovnin ,&nbsp;A.S. Gerasimov ,&nbsp;M.E. Balezin ,&nbsp;V.G. Ilves","doi":"10.1016/j.nanoso.2025.101483","DOIUrl":"10.1016/j.nanoso.2025.101483","url":null,"abstract":"<div><div>In this study, we conducted an analysis of the photocatalytic activity of nanopowders (NPs) produced by pulsed electron beam evaporation method. Specifically, we investigated TiO₂, CeO₂ NPs annealed at different temperatures, as well as Bi₂O₃, ZnO-Zn, ZrO₂, Al₂O₃, SiO₂, Fe₂O₃ NPs, including those coated and doped with nanosilver by the radiation-chemical method (Ag-ZrO₂, Ag-ZnO-Zn, Ag-Bi₂O₃, Ag-SiO₂, Ag-Fe₂O₃). Our work examined the degradation process of the organic dye methyl violet (orange) under UV irradiation in NPs suspensions, with a thorough examination of the factors influencing photocatalytic activity. It has been shown that doping and coating with nanosilver has a positive effect on the rate of photodecomposition. Furthermore, we identified optimal annealing temperatures for bismuth, silicon, and zinc oxide NPs, corresponding to increased photocatalytic activity. Notably, a correlation was established between sample activity and the ratio of band gap to the spectrum of the applied irradiation source.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101483"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892373","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":"Ternary hybrid nanofluid flow and heat transfer characteristics in a permeable cylinder with viscous dissipation effect","authors":"Khaled Matarneh ,&nbsp;Ubaidullah Yashkun ,&nbsp;Raja'i Aldiabat ,&nbsp;Liaquat Ali Lund ,&nbsp;Kaneez Fatima ,&nbsp;Zahir Shah","doi":"10.1016/j.nanoso.2025.101491","DOIUrl":"10.1016/j.nanoso.2025.101491","url":null,"abstract":"<div><div>Heat transfer can be enhanced by using ternary hybrid nanofluid (THNF), a novel class of nanofluid. The current study examines nonlinear heat radiation through THNF and hybrid nanofluid (HNF) flow through the permeable cylinder with viscous dissipation. Due to its numerous uses, the study of manganese Aluminium oxide, Copper and Titanium dioxide nanocomposite base HNF is becoming more popular in invention and research. The partial differential equations are converted into ordinary differential equations and solved mathematically by using the BVP4C method in MATLAB coding. Moreover, a TNF combination nanofluids exhibits a higher heat transfer rate compared to both hybrid and base nanofluids. By creating systems with ideal flow and investigating how viscous dissipation impact the flow, scientists and engineers can improve the efficiency of heat transmission. Key parameters such as temperature, velocity, skin friction, and heat transfer rates are examined and visually represented. Findings can be applied to the design of industrial devices. Additionally, the analysis reveals several solutions (first and second solutions) for the similarity equations. Stability assessment shows that 1st solutions are steady and practically viable, while 2nd solutions are unsteady. Furthermore, a 0.1 % rises in the overall nanoparticle volume fraction results in a significant rise in the SFC and in the Nusselt number against suction parameter in the stable solution. Increasing <span><math><mrow><msub><mrow><mi>ϕ</mi></mrow><mrow><mn>3</mn></mrow></msub><mo>=</mo><mn>0,0.04</mn><mspace></mspace><mtext>and </mtext><mn>0.1</mn></mrow></math></span> causes decrease the variation in <span><math><mrow><msubsup><mrow><mi>Re</mi></mrow><mrow><mi>x</mi></mrow><mrow><mo>−</mo><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msubsup><mrow><mi>N</mi></mrow><msub><mrow><mi>u</mi></mrow><mrow><mi>x</mi></mrow></msub></mrow></math></span> for both first and second values. The obtained critical values are <span><math><mrow><msub><mrow><mi>S</mi></mrow><mrow><mi>c</mi><mn>1</mn></mrow></msub><mo>=</mo><mn>2.3794</mn><mo>,</mo><msub><mrow><mi>S</mi></mrow><mrow><mi>c</mi><mn>2</mn></mrow></msub><mo>=</mo><mn>2.3272</mn><mspace></mspace><mtext>and</mtext><msub><mrow><mi>S</mi></mrow><mrow><mi>c</mi><mn>3</mn></mrow></msub><mo>=</mo><mn>2.2547</mn></mrow></math></span>, corresponding to <span><math><mrow><msub><mrow><mi>ϕ</mi></mrow><mrow><mn>3</mn></mrow></msub><mo>=</mo><mn>0,0.04</mn><mspace></mspace><mtext>and </mtext><mn>0.1</mn></mrow></math></span>. The study also highlights improvements in heat transfer rates driven by volume fraction, suction, and Eckert number effects.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101491"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106090","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":"Turning coffee beverage cans into nanocatalyst for the effective removal of Caffeine and simultaneous hydrogen production","authors":"Shalumon C.S. ,&nbsp;Chavalit Ratanatamskul","doi":"10.1016/j.nanoso.2025.101493","DOIUrl":"10.1016/j.nanoso.2025.101493","url":null,"abstract":"<div><div><em>γ</em> -Al₂O₃ nanoparticles were produced from waste beverage cans using NaOH as a solvent. The particles were calcined at various temperatures. As-prepared particles were characterised by X-ray powder diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) and field emission scanning electron microscopy (FESEM) equipped with energy-dispersive x-ray spectroscopy (EDX). In the presence of NaBH₄, these particles removed caffeine with a high efficiency of around 100 %. The synthesised catalyst was found to increase the rate of caffeine removal by around 16–18.5 times. Furthermore, the particles had a threefold greater favourable effect on NaBH₄ hydrolysis and hydrogen release than normal. Above all, the particles were found to be recoverable and potentially reused in several cycles while maintaining high structural and chemical stability. Transforming discarded beverage cans into <em>γ</em>-Al₂O₃ nanoparticles is an eco-friendly and sustainable way to manage solid waste, eliminate emerging contaminants and generate energy through hydrogen production.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101493"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168692","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":"Microwave-assisted synthesis of nanocrystalline hydroxyapatite using calcium supplies from green mussel shells with synthesis time optimization","authors":"Deni F. Fitriyana ,&nbsp;Rilo C. Muhammadin ,&nbsp;Yustina M. Pusparizkita ,&nbsp;Rifky Ismail ,&nbsp;J. Jamari ,&nbsp;Athanasius P. Bayuseno","doi":"10.1016/j.nanoso.2025.101484","DOIUrl":"10.1016/j.nanoso.2025.101484","url":null,"abstract":"<div><div>Nanocrystalline hydroxyapatite (HA) is utilized widely in biomaterials due to its capacity to enhance bone growth and compatibility with various manufacturing techniques. Traditional hydrothermal methods for synthesizing HA from green mussel shells (Perna viridis) typically involve long synthesis times, high temperatures, and elevated costs. This study explores a microwave-based hydrothermal method as a more cost-effective and efficient alternative for synthesizing HA from green mussel shell waste. The synthesis involves blending calcined green mussel shells with diammonium hydrogen phosphate [(NH4)₂HPO₄], followed by microwave irradiation for 1, 3, 5, and 7 minutes at 80, 240, and 400 watts. Analysis of the synthetic powder used analytical techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDX). The synthesis conditions were optimized using a microwave power of 240 watts and a 3-minute synthesis duration, yielding HA with a nano-crystallite size of 1.5–1.7 nm and a HA crystalline weight percentage of 90.7 %. FTIR analysis confirmed functional groups such as phosphate (PO₄³), hydroxyl (OH⁻), and carbonate (CO₃), indicating the formation of a carbonated nanocrystalline HA phase. The synthesized powder displayed an irregular structure with agglomeration containing nanocrystalline HA and demonstrated potential for biomaterial applications.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101484"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937551","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":"Green production adsorption effect of iron oxide nanoparticles for chromium(VI) ion in wastewater","authors":"Ömer Ödemiş,&nbsp;Mehmet Salih Ağırtaş","doi":"10.1016/j.nanoso.2025.101485","DOIUrl":"10.1016/j.nanoso.2025.101485","url":null,"abstract":"<div><div>Due to its high toxicity, the elimination of Cr(VI) in polluted and wastewater by conventional methods is both costly and complex. In this study, iron oxide nanoparticles (GT-FeONPs) were prepared using <em>Globularia trichosantha</em> flower extract as an environmentally friendly, low-cost method to remove chromium ions from aqueous media. The characteristic properties of the synthesized GT-FeONPs were researched by UV-Vis, FT-IR, TEM and XRD techniques, followed by sequential experiments to remove Cr(VI) from aqueous solutions. In this context, the optimum initial pH, optimum concentration and optimum temperature values were determined. FT-IR spectrum analysis revealed that GT-FeONPs were covered by plant components and XRD analysis revealed that the crystals had an average size of 14.34 nm. TEM analysis revealed that the particles were spherical and nanostructured with an average size of 10.89 nm. When optimum adsorption conditions were provided, the highest removal efficiency was realized at pH 2.0. At temperatures higher than 40 °C, the removal rate decreased. Absorption measurements using UV–vis spectrophotometer with different amounts of adsorbent showed that the highest removal rate of Cr(VI) was 88.30 % and the highest removal rate for reuse was 91.5 %. When the adsorption data were applied to both Langmuir and Freundlich isotherm models, it was found that the Langmuir model was more powerful in showing the equilibrium form of Cr(VI) adsorption. The kinetic model that best explained the adsorption rate mechanism was determined to be the Pseudo Second Order Kinetic model. This study shows that FeONPs synthesized under the activity of <em>Globularia trichosantha</em> flower extract can be utilized as adsorbents to remove Cr(VI) ions from wastewater.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101485"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929177","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":"Preparation of CsPbBr3/Cs4PbBr6 perovskite particles by modified hot injection method","authors":"Aytan G. Muradova ,&nbsp;Ulyana A. Stepanova ,&nbsp;Taisiya V. Koroleva ,&nbsp;Karim T. Khakimov ,&nbsp;Kristina I. Runina ,&nbsp;Kirill A. Cherednichenko ,&nbsp;Alexander V. Finko","doi":"10.1016/j.nanoso.2025.101487","DOIUrl":"10.1016/j.nanoso.2025.101487","url":null,"abstract":"<div><div>Three-dimensional CsPbBr₃ perovskite nanocrystals (NCs) have a bright photoluminescence intensity (PL) and a high quantum yield (QY) of up to 90 %. However, over time, for these NCs, the influence of external factors triggers a decrease in PL properties. This paper presents an improved hot injection method for producing CsPbBr₃/Cs₄PbBr₆ NCs. The method is based on the introduction of a Cs⁺ precursor in two stages. At the first stage, 3D NCs are formed by injecting Cs⁺ precursor. At the second stage, a Cs⁺ precursor is additionally introduced into the cooled reaction mixture to form 0D NCs. An assessment of the PL properties stability relative to three-dimensional NCs has been carried out. It is shown that for composite NCs, the PL intensity is maintained after six months and amounted to 55 % of the initial one, while for three-dimensional NCs, a month later, the PL intensity of the colloidal solution was 10 %. The resulting composite NCs demonstrate two-band PL at wavelengths of 480 and 515 nm. Owing to the obtained properties, the developed composite NCs can simplify the technology for white LED production.</div></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"42 ","pages":"Article 101487"},"PeriodicalIF":5.45,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948590","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}