Current Applied Physics最新文献

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Luminescent sensing carbon dots by using different portions of disposable face mask for recycling without waste 利用一次性面膜的不同部分进行发光感应碳点回收,不浪费
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-07-17 DOI: 10.1016/j.cap.2025.07.007
Sung Jun Park , Hyun Kyoung Yang
{"title":"Luminescent sensing carbon dots by using different portions of disposable face mask for recycling without waste","authors":"Sung Jun Park ,&nbsp;Hyun Kyoung Yang","doi":"10.1016/j.cap.2025.07.007","DOIUrl":"10.1016/j.cap.2025.07.007","url":null,"abstract":"<div><div>The spread of the covid-19 caused an increase in the consumption of disposable mask. Most of the used disposable masks are buried in the ground and incinerated. In case of the burial, disposable masks take longer than hundreds of years. In case of the incineration, a large amount of greenhouse gases generate. It affects global environmental pollution and human. Herein, we represent a method to synthesize carbon dots through recycling parts (non-woven, melt-blown, and non-woven/melt-blown) of disposable masks without mask residues. The prepared carbon dots have a size about 3.5–4.0 nm and blue region emission. As a result of fluorescence data, carbon dots mixed with Fe<sup>3+</sup> ion display quenching effect due to several oxygen groups. Those interact coordination interaction with Fe<sup>3+</sup> ions which affects possibility of nonradiative recombination, thus generating quenching effect of fluorescence. Thus, the recycled carbon dots can be applied to several fields (metal sensing and anti-counterfeiting).</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"79 ","pages":"Pages 43-51"},"PeriodicalIF":2.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lanthanum and oxygen incorporated MoS2 for advanced aqueous zinc ion batteries 镧和氧结合MoS2用于先进的水性锌离子电池
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-07-16 DOI: 10.1016/j.cap.2025.07.009
Xiaoxue Zhao , Chao Jiang , Yanan Li , Mengzhou Yu , Jiqi Zheng , Tianming Lv , Yang Mu , Changgong Meng
{"title":"Lanthanum and oxygen incorporated MoS2 for advanced aqueous zinc ion batteries","authors":"Xiaoxue Zhao ,&nbsp;Chao Jiang ,&nbsp;Yanan Li ,&nbsp;Mengzhou Yu ,&nbsp;Jiqi Zheng ,&nbsp;Tianming Lv ,&nbsp;Yang Mu ,&nbsp;Changgong Meng","doi":"10.1016/j.cap.2025.07.009","DOIUrl":"10.1016/j.cap.2025.07.009","url":null,"abstract":"<div><div>Aqueous zinc ion batteries (ZIB) are gaining more attention due to their potential for sustainable energy storage solutions. However, the limited selection of appropriate anodic materials presents a significant obstacle to the widespread development of ZIB. To provide more options for anodic materials, constant efforts are necessary to develop anodes with high Zn<sup>2+</sup> mobility and excellent reversibility. Herein, we fabricate La and O co-incorporated MoS<sub>2</sub> nanosheets (denoted as La-O-MoS<sub>2</sub>) using a facile and universal strategy, which significantly enhances the specific capacity of MoS<sub>2</sub>. The La-O-MoS<sub>2</sub> shows expanded interlayer spacing, and this extended interlayer channel plays a crucial role in the transportation of [Zn(H<sub>2</sub>O)<sub>6</sub>]<sup>2+</sup>. As a result, La-O-MoS<sub>2</sub> achieves higher specific capacity compared to MoS<sub>2</sub>. The rare earth doping strategy is also capable of generating innovative materials with distinctive structures that can be used to various multivalent ion batteries.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"79 ","pages":"Pages 22-28"},"PeriodicalIF":2.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum phase-change materials on amorphous silicon film doped with impurities 掺杂杂质的非晶硅薄膜上的量子相变材料
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-07-15 DOI: 10.1016/j.cap.2025.07.008
Wei-Qi Huang , Zhong-Mei Huang , Yin-Lian Li , Shi-Rong Liu
{"title":"Quantum phase-change materials on amorphous silicon film doped with impurities","authors":"Wei-Qi Huang ,&nbsp;Zhong-Mei Huang ,&nbsp;Yin-Lian Li ,&nbsp;Shi-Rong Liu","doi":"10.1016/j.cap.2025.07.008","DOIUrl":"10.1016/j.cap.2025.07.008","url":null,"abstract":"<div><div>The quantum phase change represents a transition to crystallizing quantum structure from amorphous silicon doped with impurities prepared in sputtering and depositing process by pulsed laser interaction, in which the silicon nanocrystals and the Yb-Er nanoalloy with direct bandgap are dramatic generated in irradiation process of laser or coherent electron beam, respectively. Here, the resonance among photon, electron and phonon occurs on surface with various impurities for quantum phase change, such as quantum dots crystallizing. It is demonstrated that the crystallizing process is faster and more stable while the plasmon energy produced by laser photon is near the phonon energy in annealing of laser irradiation, or while the energy of coherent electron is close to the phonon energy. Through quantum phase transition, the nanocrystals with various structures are observed in the TEM images, where the change characteristics in the low-dimensional quantum phase occur. It is interesting that the quantum phase change is obviously different in various impurities on surface of Si film, where the stronger condensing in crystallization doped with oxygen or erbium is measured. Under irradiation of coherent electron beam for suitable time, the nanostructure of Yb-Er alloy is observed on silicon, in which we find the new electron states near 0.93 eV for better emission at 1350 nm in the second communication window. And in the alloy of Yb-Er, the Er condensing and clustering are avoided in the crystallizing process for better emission near 1550 nm in the third optical communication window.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"79 ","pages":"Pages 14-21"},"PeriodicalIF":2.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Time and spatially resolved analysis of single quantum well InGaN/GaN photoluminescence blinking at multiple sample frequencies 多采样频率闪烁单量子阱InGaN/GaN光致发光的时空分辨分析
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-07-14 DOI: 10.1016/j.cap.2025.07.003
Kotaro Oikawa , Mitsuru Funato , Yoichi Kawakami , Ruggero Micheletto
{"title":"Time and spatially resolved analysis of single quantum well InGaN/GaN photoluminescence blinking at multiple sample frequencies","authors":"Kotaro Oikawa ,&nbsp;Mitsuru Funato ,&nbsp;Yoichi Kawakami ,&nbsp;Ruggero Micheletto","doi":"10.1016/j.cap.2025.07.003","DOIUrl":"10.1016/j.cap.2025.07.003","url":null,"abstract":"<div><div>A blinking phenomenon has been reported in InGaN/GaN single-quantum-well samples photoluminescence (PL). In this study, time-resolved PL measurements were performed at sampling frequencies of 30, 60, 120, 240 and 480 Hz and spatial maps were created. We defined two ON/OFF states and determined the time distribution of these states for each sampling frequency. We found that at increased sampling rates shorter blinking states were observed together with those of lower sampling rates. When we studied the spatial cross-correlation maps at the different sampling rates, despite the presence of these new blinking frequencies at higher sampling rates, the maps show evident similar spatial distribution, indicating that the correlation is a feature strongly related to the crystal structure, it is common to all blinking centers and it is present at any frequency investigated.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"79 ","pages":"Pages 7-13"},"PeriodicalIF":2.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tailoring electrical properties and thermal stability of PNT-PZT ceramics via Mn doping 通过Mn掺杂调整PNT-PZT陶瓷的电学性能和热稳定性
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-07-10 DOI: 10.1016/j.cap.2025.07.005
Yan Mu , Junjun Wang , Bingsen Wang , Yufang Jiao , Jian He , Meng Liu , Che Sun , Shaoyang Yuan , Meijing Ai , Danqing Liu , Fengmin Wu
{"title":"Tailoring electrical properties and thermal stability of PNT-PZT ceramics via Mn doping","authors":"Yan Mu ,&nbsp;Junjun Wang ,&nbsp;Bingsen Wang ,&nbsp;Yufang Jiao ,&nbsp;Jian He ,&nbsp;Meng Liu ,&nbsp;Che Sun ,&nbsp;Shaoyang Yuan ,&nbsp;Meijing Ai ,&nbsp;Danqing Liu ,&nbsp;Fengmin Wu","doi":"10.1016/j.cap.2025.07.005","DOIUrl":"10.1016/j.cap.2025.07.005","url":null,"abstract":"<div><div>This study presents a comprehensive investigation of the structural, dielectric, and piezoelectric properties of Mn-doped 0.12PNT-0.88PZT ceramics. X-ray diffraction (XRD) confirms the formation of pure perovskite tetragonal phases in all compositions. The incorporation of Mn exerts a pronounced influence on the functional properties of the ceramics, including dielectric, ferroelectric and piezoelectric properties etc. Notably, the 1.5 mol% Mn-doped 0.12PNT-0.88PZT composition demonstrates enhanced performance, achieving <em>ɛ</em><sub>r</sub> = 2838, <em>P</em><sub>r</sub> = 15.2 μC/cm<sup>2</sup>, <em>d</em><sub>33</sub> = 440 pC/N, while the 2.5 mol% Mn-doped variant achieves an exceptional <em>Q</em><sub>m</sub> of 730. Rayleigh analysis of the dielectric response reveals that the extrinsic contribution, quantified by the Rayleigh parameter (<em>α</em>), peaks at a Mn doping concentration of 1.5 mol%. These findings indicate that as extrinsic effects intensify, domain switching and grain boundary contributions to the electrical properties become increasingly dominant. Furthermore, the 1.5 mol% Mn-doped 0.12PNT-0.88PZT ceramics demonstrate excellent temperature stability in piezoelectric coefficient, electromechanical coupling factor, and mechanical quality factor over a broad temperature range from the room temperature to 120 °C. This work provides critical insights into the role of Mn doping in enhancing the functional properties of PNT-PZT ceramics and highlights its potential for applications requiring stable performance under varying thermal conditions.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"78 ","pages":"Pages 67-72"},"PeriodicalIF":2.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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 ultralong, horizontally aligned VO2 nanowires for stable multi-level resistive switching 用于稳定的多电平电阻开关的超长水平排列VO2纳米线的合成
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-07-10 DOI: 10.1016/j.cap.2025.07.006
Min Kyun Sohn , Ha Young Choi , Hyunje Park , Jaeseok Hwang
{"title":"Synthesis of ultralong, horizontally aligned VO2 nanowires for stable multi-level resistive switching","authors":"Min Kyun Sohn ,&nbsp;Ha Young Choi ,&nbsp;Hyunje Park ,&nbsp;Jaeseok Hwang","doi":"10.1016/j.cap.2025.07.006","DOIUrl":"10.1016/j.cap.2025.07.006","url":null,"abstract":"<div><div>Vanadium dioxide (VO<sub>2</sub>) is a transition metal oxide renowned for its distinctive metal-to-insulator transition that occurs in the vicinity of room temperature. Among various VO<sub>2</sub> nanomaterials, one-dimensional VO<sub>2</sub> nanowires have garnered a significant attention due to their potential for multi-level resistive switching. However, conventional routes for preparing VO<sub>2</sub> nanowires have been encountered by the limited length of wire, random orientation, and aggregation, which hinder their integration into VO<sub>2</sub>-based device applications. In this study, we introduce a chemical vapor deposition approach to synthesize ultralong (∼600 μm), horizontally aligned single-crystalline VO<sub>2</sub> nanowires on <em>x</em>-cut quartz substrates. The synthesized nanowires represented four distinct resistance states over 100 switching cycles, providing an opportunity for highly efficient data processing. Our study prescribes the strategy for extensive device applications using the phase transition properties of single crystal VO<sub>2</sub> nanowires.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"79 ","pages":"Pages 34-42"},"PeriodicalIF":2.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microscopic origin of the spin-splitting in altermagnets 交替磁体中自旋分裂的微观起源
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-07-09 DOI: 10.1016/j.cap.2025.07.004
Suyoung Lee , Minjae Kim , Changyoung Kim
{"title":"Microscopic origin of the spin-splitting in altermagnets","authors":"Suyoung Lee ,&nbsp;Minjae Kim ,&nbsp;Changyoung Kim","doi":"10.1016/j.cap.2025.07.004","DOIUrl":"10.1016/j.cap.2025.07.004","url":null,"abstract":"<div><div>Altermagnets, characterized by spin-split bands without net magnetization, have recently emerged as a promising platform for spintronics. However, their microscopic mechanisms remain elusive, often relying on abstract group theory. In this work, we present an intuitive and pedagogical framework to understand the origin of spin splitting in altermagnets. We identify two essential ingredients: (1) alternating spin-polarized wavefunction localization on sublattices, and (2) broken translational symmetry caused by distortions in non-magnetic ion cages. We discuss a minimal model Hamiltonian based on an atomic exchange-driven spin splitting and anisotropic hopping that captures these effects and reproduces the hallmark features of altermagnetic band structures, including nodal spin degeneracies and large spin splittings. Our model is further validated by ab initio calculations on MnF<sub>2</sub>. By demystifying the microscopic origins of altermagnetism, our work bridges symmetry analysis and material realizations, shedding light on practical designs of altermagnetic spintronic devices.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"79 ","pages":"Pages 29-33"},"PeriodicalIF":2.4,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancements of luminescence properties of Gd3+-sensitized perovskite CaZrO3:Eu3+ phosphors Gd3+敏化钙钛矿CaZrO3:Eu3+荧光粉发光性能的增强
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-07-07 DOI: 10.1016/j.cap.2025.07.002
Yeon Woo Seo , Hyeon Mi Noh , Byung Chun Choi, Jung Hyun Jeong
{"title":"Enhancements of luminescence properties of Gd3+-sensitized perovskite CaZrO3:Eu3+ phosphors","authors":"Yeon Woo Seo ,&nbsp;Hyeon Mi Noh ,&nbsp;Byung Chun Choi,&nbsp;Jung Hyun Jeong","doi":"10.1016/j.cap.2025.07.002","DOIUrl":"10.1016/j.cap.2025.07.002","url":null,"abstract":"<div><div>A novel perovskite phosphor CaZrO<sub>3</sub> co-doped with Eu<sup>3+</sup> and Gd<sup>3+</sup> ions was prepared by a high-energy deformation process. The structures, morphologies, compositions, and photoluminescence properties of the materials were systematically measured and studied. The X-ray diffraction patterns showed an orthorhombic perovskite crystal structure. The highest excitation peak was observed at 394 nm, which is in good agreement with the near-UV chips. The prepared phosphors excited by near-UV 394 nm light exhibit narrow-band red emission dominated by the <sup>5</sup>D<sub>0</sub> → <sup>7</sup>F<sub>2</sub> transition of Eu<sup>3+</sup>, which peaked at 614 nm. The optimum concentration of Gd<sup>3+</sup> in the CaZrO<sub>3</sub>: Eu<sup>3+</sup>, Gd<sup>3+</sup> phosphor was 2 mol%, above which concentration quenching was observed. According to the results of the luminescence properties, the prepared phosphor materials have potential as efficient candidates for near-UV and blue light-emitting diode chips and as efficient components for the manufacture of white light-emitting diodes.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"79 ","pages":"Pages 1-6"},"PeriodicalIF":2.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic field mediated temperature sensing with a solid-state spin qubit: a proposal for hybrid quantum thermometry with a permanent magnet 用固态自旋量子位元进行磁场介导的温度传感:用永磁体进行混合量子测温的建议
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-07-02 DOI: 10.1016/j.cap.2025.07.001
Kihwan Kim , Dongkwon Lee , Yisoo Na, Donghun Lee
{"title":"Magnetic field mediated temperature sensing with a solid-state spin qubit: a proposal for hybrid quantum thermometry with a permanent magnet","authors":"Kihwan Kim ,&nbsp;Dongkwon Lee ,&nbsp;Yisoo Na,&nbsp;Donghun Lee","doi":"10.1016/j.cap.2025.07.001","DOIUrl":"10.1016/j.cap.2025.07.001","url":null,"abstract":"<div><div>Diamond nitrogen-vacancy (NV) centers are promising thermal sensors with versatile applications, from electronic devices to biomedical systems. However, conventional thermometry relies on the intrinsic property of the NV center, temperature dependence of the zero-field splitting, which is small and significantly reduces at low temperatures (&lt;150 K). Here, we propose a hybrid quantum thermometry combining diamond NV centers with a permanent magnet with a high reversible temperature coefficient. This method converts temperature variations into magnetic field signals, detected by NV centers through magnetometry protocols like Ramsey interferometry. Our calculations show that this approach enhances thermal sensitivity by a factor of 10 to 10<sup>4</sup> compared to conventional thermometry, including thermal echo and thermal Carr-Purcell-Meiboom-Gill (TCPMG). Moreover, it operates across a wide temperature range, down to 20 K, making it suitable for cryogenic quantum thermometry. This proposal offers significant advancement over current NV thermometry, enabling highly sensitive, low-temperature measurements.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"78 ","pages":"Pages 60-66"},"PeriodicalIF":2.4,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimized green synthesis of dual-phase metal oxide nanoparticles for environmental remediation 环境修复用双相金属氧化物纳米颗粒绿色合成优化研究
IF 2.4 4区 物理与天体物理
Current Applied Physics Pub Date : 2025-06-28 DOI: 10.1016/j.cap.2025.06.013
Harpreet Kaur , Gassoumi Bouzid , Sanjeev Kumar , Ramandeep Kaur , Sahbi Ayachi , Mir Waqas Alam
{"title":"Optimized green synthesis of dual-phase metal oxide nanoparticles for environmental remediation","authors":"Harpreet Kaur ,&nbsp;Gassoumi Bouzid ,&nbsp;Sanjeev Kumar ,&nbsp;Ramandeep Kaur ,&nbsp;Sahbi Ayachi ,&nbsp;Mir Waqas Alam","doi":"10.1016/j.cap.2025.06.013","DOIUrl":"10.1016/j.cap.2025.06.013","url":null,"abstract":"<div><div>This study presents the first reported investigation of <em>Nigella sativa</em> (<em>NS</em>) leaf extract as a natural reducing and stabilizing agent for the green synthesis of copper oxide nanoparticles (<em>NS</em>:CuO NPs). Structural analysis confirmed a mixed monoclinic and cubic phase having crystallite size of 23 nm. The optical study depicted an absorption peak at 361 nm and band gap energy of 2.30 eV. Surface chemistry revealed the functional groups, including O–H, N–H, C–H, C=O, and N–O on the surface of particles, indicating phytochemical capping on the nanoparticle surface. Morphological studies revealed spherical and elongated particles, with diameters of 8–10 nm and lengths ranging from 50 to 125 nm. The <em>NS</em>:CuO NPs showed excellent photocatalytic performance, achieving ∼98 % and ∼89 % degradation of Malachite Green and Congo Red under visible light within 60 min and 140 min, following pseudo-first-order kinetics with a rate constant of 0.05463 , supported min<sup>−1</sup> and 0.01548 min<sup>−1</sup>, respectively. The high efficiency was primarily attributed to superoxide radicalsby other reactive oxygen species. The catalyst maintained over 90 % degradation efficiency after five consecutive cycles.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"78 ","pages":"Pages 29-47"},"PeriodicalIF":2.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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