Carbon Trends最新文献_第10页

Strain detection using long-length MWCNT buckypaper-based flexible strain sensor for large strain range 采用长MWCNT柔性应变传感器进行应变检测，适用于大应变范围

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-05-21 DOI: 10.1016/j.cartre.2025.100525

Sony Bharadwaj , Manoj Sehrawat , Sushant Sharma , Tejendra K Gupta , Indu Elizabeth , Mamta Rani , Bhanu Pratap Singh

Flexible strain sensors are crucial in wearable devices, yet achieving both high sensitivity and a broad strain detection range simultaneously poses challenges, often leading to trade-offs. In this study, a flexible, sandwiched structured strain sensor has been developed using thermoplastic polyurethane (TPU) polymer and long-length multiwalled carbon nanotube (l-MWCNT) buckypaper. The l-MWCNT helps to keep the resistance steady as long as the strain stays within a certain limit. This greatly expands the strain detection range of the sensor to ∼427%. Additionally, the sensor exhibits notable sensing properties with a highest gauge factor of ∼150 and a rapid response and recovery time of 100 ms. It also demonstrates good stability and durability during cyclic stretching and releasing tests, owing to the reversible changes in the CNT conductive network under tensile and compression loading. This sensor enables real-time health monitoring and can detect various physiological activities such as swallowing, breathing, speech, pulse, and movements of the wrist and fingers. These advancements highlight the potential of flexible strain sensor technology in improving human movement detection.

柔性应变传感器在可穿戴设备中至关重要，但同时实现高灵敏度和宽应变检测范围带来了挑战，往往导致权衡。本研究采用热塑性聚氨酯（TPU）聚合物和长多壁碳纳米管（l-MWCNT）厚纸，开发了一种柔性夹层结构应变传感器。l-MWCNT有助于保持稳定的电阻，只要应变保持在一定限度内。这大大扩展了传感器的应变检测范围至~ 427%。此外，该传感器具有显著的传感特性，最高测量因子为~ 150，快速响应和恢复时间为100 ms。由于碳纳米管导电网络在拉伸和压缩载荷下的可逆变化，在循环拉伸和释放试验中也表现出良好的稳定性和耐久性。这种传感器可以实时监测健康状况，并可以检测各种生理活动，如吞咽、呼吸、说话、脉搏以及手腕和手指的运动。这些进步突出了柔性应变传感器技术在改善人体运动检测方面的潜力。

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引用次数: 0

Optimizing nitrogen doping strategies in hard carbon for enhanced performance in sodium-ion batteries 优化硬碳中氮掺杂策略以提高钠离子电池性能

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-05-21 DOI: 10.1016/j.cartre.2025.100523

Maksat Maratov , Aibar Alpysbayev , Dilshat Abduakhitov , Bauyrzhan Myrzakhmetov , Kenes Kudaibergenov , Zhumabay Bakenov , Seung-Taek Myung , Aishuak Konarov

Sodium-ion batteries are emerging as a promising and cost-effective alternative to lithium-ion batteries for large-scale applications. Among various anode materials, hard carbon has become a preferred choice for sodium-ion batteries. This study focuses on synthesizing hard carbon from bio-waste cherries and investigating the impact of nitrogen doping strategies on its electrochemical performance. Using urea as a precursor, post nitrogen doping was found to enhance the structural properties of hard carbon, facilitating better penetration of sodium ions into its internal structure. The results revealed that post nitrogen doping significantly improved the capacity of hard carbon, increasing it from 206 mAh g⁻¹ to 274 mAh g⁻¹ at a current density of 20 mA g⁻¹. Additionally, the post nitrogen-doped hard carbon demonstrated an impressive capacity of 110 mAh g⁻¹ at a high current density of 1 A g⁻¹. These findings underscore the potential of nitrogen doping in optimizing hard carbon for sodium-ion battery applications.

钠离子电池正在成为锂离子电池大规模应用的一种有前途且具有成本效益的替代品。在各种负极材料中，硬碳已成为钠离子电池的首选材料。本研究主要以生物废樱桃为原料合成硬碳，并研究氮掺杂策略对其电化学性能的影响。以尿素为前驱体，后氮掺杂提高了硬碳的结构性能，有利于钠离子更好地渗透到硬碳的内部结构中。结果显示，氮后的添加显著地提高了硬碳的容量，在电流密度为20毫安的情况下，硬碳的容量从206毫安的g⁻¹增加到274毫安的g⁻¹。此外，氮掺杂后的硬碳在1 a g⁻¹的高电流密度下表现出令人印象深刻的110 mAh的容量。这些发现强调了氮掺杂在优化钠离子电池硬碳应用方面的潜力。

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引用次数: 0

Flash graphene: From synthesis to potential applications 闪光石墨烯：从合成到潜在应用

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-05-20 DOI: 10.1016/j.cartre.2025.100524

Godwin Mong Kalu-Uka , Agnidip Sarkar , Abraham Chinedu Kalu-Uka , Sandeep Kumar

The global impact of the poor waste management practices in developing countries has begun to weary the developed nations of the world. For this reason, researchers have striven to provide sustainable solutions to the waste management crisis by improving the effectiveness of the existing waste management systems and developing new methodologies for converting waste into energy and useful materials. The latest breakthrough in the conversion of waste into useful materials is the synthesis of flash graphene through flash joule heating technology. However, studies on flash graphene have remained a niche research area for a few authors, despite the unique properties and potential applications of flash graphene. Though this situation could be attributed to a number of factors, the authors believe that more researchers would be motivated to study the synthesis and applications of flash graphene if there were sufficient review articles on the subject matter. To this end, the authors have comprehensively reviewed the existing literature, with the primary objective of systematically discussing the research findings on flash graphene synthesis, characterisation and applications.

发展中国家不良废物管理做法的全球影响已开始使世界发达国家感到厌倦。因此，研究人员努力通过提高现有废物管理系统的效率和开发将废物转化为能源和有用材料的新方法，为废物管理危机提供可持续的解决办法。废物转化为有用材料的最新突破是通过闪光焦耳加热技术合成闪光石墨烯。然而，尽管闪现石墨烯具有独特的性质和潜在的应用，但对闪现石墨烯的研究仍然是少数作者的一个小众研究领域。虽然这种情况可以归因于许多因素，但作者认为，如果有足够的关于该主题的评论文章，更多的研究人员将被激励去研究闪光石墨烯的合成和应用。为此，作者全面回顾了现有文献，主要目的是系统地讨论了闪蒸石墨烯的合成、表征和应用方面的研究成果。

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引用次数: 0

Synthesis of g-C3N4 Triazine-structure via modified low-temperature polycondensation of Melamine-Barbiturate 三聚氰胺-巴比妥酸酯改性低温缩聚合成g-C3N4三嗪结构

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-05-16 DOI: 10.1016/j.cartre.2025.100522

Veronika Yu. Yurova, Daniil Yu. Piarnits, Ivan V. Moskalenko, Igor S. Smirnov, Iuliia V. Maltceva, Vasiliy A. Krylov, Vera E. Sitnikova, Evgeny Smirnov, Ekaterina V. Skorb

A novel supramolecular precursor strategy was developed for the low-temperature synthesis of triazine-structured graphitic carbon nitride (g-C₃N₄). The supramolecular assembly of melamine and barbituric acid enables a significant reduction in the synthesis temperature—from the conventional 550 °C to 350 °C—and shortens processing time to just 60 min. Structural and physicochemical characterization (XRD, FTIR, SEM, and BET) confirms the formation of a triazine-based g-C₃N₄ framework with a specific surface area of 17.6 m²/g and a uniform mesoporous structure (∼3.5 nm). Photocatalytic experiments demonstrate efficient degradation of organic dyes under visible-light irradiation (λ = 365 and 405 nm), indicating the material's enhanced photoactivity. Scanning vibrating electrode technique (SVET) measurements further reveal a clear photoinduced ionic current response under both excitation wavelengths, supporting the presence of defect-associated energy states within the bandgap and confirming the ability of CN-MB-350 to function as a visible-light-responsive semiconductor. The proposed method offers a cost-effective and energy-saving alternative to conventional g-C₃N₄ synthesis and expands the potential for structural tuning of carbon nitride materials via precursor engineering.

提出了一种低温合成三嗪结构石墨氮化碳（g-C3N4）的超分子前驱体策略。三聚氰胺和巴比脲酸的超分子组装使合成温度从传统的550°C显著降低到350°C，并将加工时间缩短到仅60分钟。结构和物理化学表征（XRD， FTIR， SEM和BET）证实形成了基于三氮嘧啶的g- c3n4框架，其比表面积为17.6 m2/g，具有均匀的介孔结构（~ 3.5 nm）。光催化实验表明，在可见光（λ = 365和405 nm）照射下，该材料能有效降解有机染料，表明该材料具有增强的光活性。扫描振动电极技术（SVET）测量进一步揭示了在两个激发波长下光敏离子电流响应，支持带隙内缺陷相关能态的存在，并证实了CN-MB-350作为可见光响应半导体的能力。该方法为传统的g-C3N4合成提供了一种经济、节能的替代方法，并扩大了通过前驱体工程调整氮化碳材料结构的潜力。

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引用次数: 0

Advancing CO2 separation and capture in post-combustion scenarios using resonant vibration techniques 利用共振振动技术推进燃烧后二氧化碳的分离和捕获

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-05-14 DOI: 10.1016/j.cartre.2025.100521

Amirhosein Riahi , Julie Muretta , Richard LaDouceur

Carbon dioxide (CO₂) requires specialized capture methods for effective mitigation. Biochar has garnered significant interest as a versatile, porous solid adsorbent due to its cost-effective production, thermal, chemical, and mechanical stability, and minimal environmental impact. However, its small surface area and diffusional issues result in slow CO₂ adsorption kinetics and limited capacity, hindering widespread adoption. To address this limitation, most research in the field focuses on chemical approaches to enhance biochar's adsorption capabilities. While these methods are effective, concerns remain about their overall carbon neutrality and environmental sustainability due to the production of toxic chemicals. In this work, an innovative Process Intensification technique—Low-Frequency High-Amplitude (LFHA) resonant vibratory mixing—is proposed to enhance selective CO₂ adsorption onto hemp-derived biochar under simulated post-combustion conditions (16 % V/V CO₂/N₂) representative of coal-fired power plant exhaust streams. By optimizing biochar's physical properties and facilitating CO₂ transport processes, the resonant vibrations are shown to increase the CO₂ selectivity factor by 25.49 %, from 9.61 in non-vibrational adsorption to 12.07 in vibrational adsorption. The calculated CO₂ working dynamic capacity from selective adsorption closely corresponded to the equilibrium capacity obtained through isothermal measurements at room temperature (25 °C) and a partial pressure of 0.16. The values were 9.12 % lower for non-vibrational adsorption and 20.64 % lower for vibrational adsorption, thereby demonstrating the efficiency of the developed method. The microstructure and the textural properties of biochar have been evaluated by means of Scanning Electron Microscopy (SEM), Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS), and Raman spectroscopy. Experimental results also indicate the reusability and regeneration of biochar for cyclic CO₂ adsorption through two distinct methods.

为有效减缓二氧化碳，需要专门的捕集方法。生物炭作为一种多用途的多孔固体吸附剂，由于其具有成本效益、热、化学和机械稳定性以及对环境影响最小的特点，已经引起了人们的极大兴趣。然而，它的表面积小，扩散问题，导致CO2吸附动力学缓慢，容量有限，阻碍了广泛应用。为了解决这一限制，该领域的大多数研究都集中在化学方法上，以提高生物炭的吸附能力。虽然这些方法是有效的，但由于生产有毒化学品，人们仍然担心它们的总体碳中和和环境可持续性。在这项工作中，提出了一种创新的过程强化技术-低频高振幅（LFHA）共振振动混合-在模拟燃煤电厂废气流的燃烧后条件（16% V/V CO2/N2）下，增强大麻衍生生物炭对CO2的选择性吸附。通过优化生物炭的物理性质和促进CO2的传输过程，共振振动使CO2的选择因子从非振动吸附的9.61提高到振动吸附的12.07，提高了25.49%。通过选择吸附计算得到的CO2工作动态容量与室温（25℃）、分压0.16等温测量得到的平衡容量基本一致。非振动吸附和振动吸附分别降低了9.12%和20.64%，表明了该方法的有效性。利用扫描电子显微镜（SEM）、漫反射红外傅立叶变换光谱（DRIFTS）和拉曼光谱（Raman Spectroscopy）对生物炭的微观结构和结构特性进行了表征。实验结果还表明，通过两种不同的方法，生物炭可重复使用和再生用于循环CO2吸附。

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引用次数: 0

Preparation and properties of superhydrophobic composite coatings based on carbon materials/SiO2 碳材料/SiO2超疏水复合涂层的制备及性能研究

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-05-10 DOI: 10.1016/j.cartre.2025.100519

Shuai Wang , Wei Si , Sijia Zhang , Shahid Muhammad

Conductive superhydrophobic materials have very important applications in the fields of deicing, electromagnetic shielding, electronic intelligence, etc. However, the current poor durability and fragile structure of superhydrophobic surfaces have significantly limited the application of superhydrophobic conductive materials. In this paper, wear-resistant and conductive superhydrophobic coatings were prepared by directly adding carbon fibers and carbon nanotubes (CNTs) to the precursor solution and modified with silane coupling agent. Based on our findings, the addition of silane coupling agent enhanced the adhesion between the nanoparticles and the substrate. Carbon nanotubes were interwoven with SiO₂ particles to form a micrometer/nanometer structure and generate air pockets, resulting in a high contact angle and self-cleaning effect. Furthermore, the high electrical conductivity, high compressive strength and high tensile strength of carbon fibers improved the wear resistance and electrical properties of the coating. This study provides a simple and practical method for the preparation of wear-resistant and conductive superhydrophobic surfaces, which has a broad application prospect in various domains.

导电超疏水材料在除冰、电磁屏蔽、电子智能等领域有着非常重要的应用。然而，目前超疏水表面耐久性差、结构脆弱，极大地限制了超疏水导电材料的应用。本文通过在前驱体溶液中直接加入碳纤维和碳纳米管（CNTs），并用硅烷偶联剂进行改性，制备了耐磨导电超疏水涂层。基于我们的研究结果，硅烷偶联剂的加入增强了纳米颗粒与衬底之间的粘附性。碳纳米管与SiO2颗粒相互交织形成微米/纳米结构，并产生气穴，从而获得高接触角和自清洁效果。此外，碳纤维的高导电性、高抗压强度和高抗拉强度提高了涂层的耐磨性和电性能。本研究为制备耐磨导电超疏水表面提供了一种简单实用的方法，在各个领域具有广阔的应用前景。

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引用次数: 0

Organic bistable memory devices utilizing PMMA polymer matrix-based ZnOC60 core-shell QDs nanocomposites 基于PMMA聚合物基zno60核壳量子点纳米复合材料的有机双稳态存储器件

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-05-04 DOI: 10.1016/j.cartre.2025.100517

Jaeho Shim , Jinseo Park , Seok-Ho Seo , Ju Hee You , Dong Ick Son

This study explores the development of organic bistable memory devices (OBMDs) leveraging ZnO-fullerene (C₆₀) core-shell QDs embedded within a poly(methyl methacrylate) (PMMA) polymer matrix. Employing a spin-coating methodology, ZnO QDs were encapsulated with fullerene C₆₀, a molecule renowned for its high electron affinity, to establish a robust core-shell configuration. This design significantly enhanced quantum confinement and provided efficient charge trapping capabilities. Structural analyses using transmission electron microscopy (TEM) confirmed the uniform dispersion and precise formation of ZnOC₆₀ QDs, exhibiting an average particle size of approximately 10 nm within the polymer matrix. The electrical performance of Al/ZnOC₆₀ QD-embedded PMMA/ITO devices was evaluated at 300 K, revealing clear bistable characteristics. The devices achieved a high ON/OFF current ratio of 7.46 × 10³, demonstrated exceptional cycling endurance exceeding 1.5 × 10⁴ cycles, and exhibited long-term retention surpassing 1.2 × 105 s. Detailed analysis of current-voltage (I-V) data highlighted Fowler-Nordheim (F-N) tunneling as a key mechanism facilitating efficient memory operation. These findings underscore the potential of ZnOC₆₀ core-shell QDs as a transformative material system for advanced non-volatile memory technologies. This work provides a foundation for further exploration into scalable and energy-efficient memory devices suitable for next-generation electronics and optoelectronics.

本研究探讨了利用zno -富勒烯（C60）核壳量子点嵌入聚甲基丙烯酸甲酯（PMMA）聚合物基体中的有机双稳态存储器件（obmd）的发展。采用自旋涂层方法，将ZnO量子点包裹在富勒烯C60（一种以其高电子亲和性而闻名的分子）中，以建立坚固的核壳结构。该设计显著增强了量子约束并提供了有效的电荷捕获能力。透射电子显微镜（TEM）的结构分析证实了ZnOC60量子点的均匀分散和精确形成，显示出聚合物基体内的平均粒径约为10 nm。在300 K下对Al/ZnOC60 qd嵌入PMMA/ITO器件的电学性能进行了评估，显示出明显的双稳态特性。该器件实现了7.46 × 103的高开/关电流比，具有超过1.5 × 104次的超长循环续航能力，并具有超过1.2 × 105 s的长期保持能力。电流-电压（I-V）数据的详细分析强调了Fowler-Nordheim （F-N）隧道效应是促进高效内存操作的关键机制。这些发现强调了ZnOC60核壳量子点作为先进非易失性存储技术的变革性材料系统的潜力。这项工作为进一步探索适用于下一代电子和光电子的可扩展和节能存储器件提供了基础。

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引用次数: 0

Fluorescent Chitosan-Europium hydroxyapatite beads for drug delivery 用于给药的荧光壳聚糖-铕羟基磷灰石珠

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-05-02 DOI: 10.1016/j.cartre.2025.100513

Joana Bahamonde-Duarte , Sarah Briceño , Karla Vizuete , Alexis Debut , Luis J. Borrero-González , Gema González

Fluorescent Chitosan-Europium-doped hydroxyapatite beads (HAp:xEu

^{3 +}

/CS with 0

\leq

x

\leq

0.2) were synthesized for the delivery of ciprofloxacin as a model drug. Europium-doped hydroxyapatite nanoparticles were synthesized using the hydrothermal method and thermally treated at 600

^{\circ} C

for 2 h. Hydroxyapatite nanoparticles were combined with chitosan to form the beads. The beads were characterized using Fourier transform infrared spectroscopy, fluorescence microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, luminescence spectroscopy, and ultraviolet–visible spectroscopy. Chitosan-Europium-doped hydroxyapatite beads reduce the initial burst release of ciprofloxacin and extend the release period, making the beads suitable for sustained potential drug delivery applications. The results reveal that the fluorescence and emission properties were enhanced by the interaction of ciprofloxacin with the beads. These beads offer a combination of optical properties and prolonged ciprofloxacin release with several advantages over conventional immediate-release formulations that could improve therapeutic efficacy.

合成了壳聚糖-铕掺杂羟基磷灰石荧光珠（HAp:xEu3+/CS, 0≤x≤0.2），用于递送环丙沙星作为模型药物。采用水热法制备掺铕羟基磷灰石纳米颗粒，并在600°C下热处理2 h。将羟基磷灰石纳米颗粒与壳聚糖结合形成微珠。利用傅里叶变换红外光谱、荧光显微镜、扫描电镜、能量色散x射线光谱、发光光谱和紫外可见光谱对微珠进行了表征。壳聚糖-铕掺杂羟基磷灰石珠减少了环丙沙星的初始爆发释放并延长了释放期，使珠适合于持续潜在的药物递送应用。结果表明，环丙沙星与微球的相互作用增强了微球的荧光和发射性能。这些微珠结合了光学特性和环丙沙星缓释时间，与传统的立即释放制剂相比，具有几个优点，可以提高治疗效果。

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引用次数: 0

Low-density functionalized amorphous carbon nanofoam as binder-free Thin-film Supercapacitor electrode 低密度功能化非晶碳纳米泡沫作为无粘结剂薄膜超级电容器电极

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-05-01 DOI: 10.1016/j.cartre.2025.100516

Subrata Ghosh , Massimiliano Righi , Andrea Macrelli , Francesco Goto , Marco Agozzino , Gianlorenzo Bussetti , Valeria Russo , Andrea Li Bassi , Carlo S. Casari

Nanoporous carbon materials containing small domains of sp²-carbon with highly disordered structures are promising for supercapacitor applications. Herein, we synthesize amorphous carbon nanofoam with 98% volumetric void fraction and low mass density of around 30 mg/cm³ by pulsed laser deposition at room temperature. With the unavoidable oxygen functional groups on the nanoporous surface, carbon nanofoam and nitrogen-functionalized carbon nanofoams are directly grown on the desired substrate under different background gases (Ar, N₂, N₂H₂)_, and employed as supercapacitor electrodes. Among the background gases used in synthesis, the use of nitrogen yields nanofoam with higher thickness and more N-content with higher graphitic-N. From the test of amorphous carbon nanofoam supercapacitor device, nitrogenated amorphous carbon electrode shows a higher areal capacitance of 4.1 mF/cm² at 20 mV/s in aqueous electrolyte, a better capacitance retention at higher current, and excellent cycle stability (98%) over 10,000 charge-discharge cycles are achieved compared to not-functionalized counterpart prepared under Ar background gas (2.7 mF/cm² and cycle stability of 88%).

含有sp2-碳小畴且结构高度无序的纳米多孔碳材料在超级电容器中具有广阔的应用前景。本文采用脉冲激光沉积的方法，在室温下合成了体积孔隙率为98%、质量密度约为30 mg/cm3的非晶碳纳米泡沫。利用纳米孔表面不可避免的氧官能团，在不同背景气体（Ar, N2, N2H2）下，直接在所需的衬底上生长碳纳米泡沫和氮官能团碳纳米泡沫，并将其用作超级电容器电极。在合成过程中使用的背景气体中，氮气的使用使纳米泡沫具有更高的厚度和更高的n含量，石墨- n含量也更高。通过对非晶态碳纳米泡沫超级电容器器件的测试，氮化非晶态碳电极在水电解质中表现出更高的面积电容，在20 mV/s下具有4.1 mF/cm2，在大电流下具有更好的电容保持性，并且在10,000次充放电循环中具有优异的循环稳定性（98%），而在Ar背景气体下制备的非功能化碳电极（2.7 mF/cm2，循环稳定性为88%）。

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引用次数: 0

Low-energy consumption rapid synthesis of high-fluorescence nitrogen-doped carbon dots at room temperature using a combusted shrimp shell combined solution and application to catechins detection 燃烧虾壳复合溶液在室温下低能耗快速合成高荧光氮掺杂碳点及其在儿茶素检测中的应用

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-04-21 DOI: 10.1016/j.cartre.2025.100515

Yi Chen Huang, Jun Yi Wu

Shrimp shells are used as the carbon and nitrogen source to produce high-fluorescence nitrogen-carbon dots at room temperature by employing a cutting process based on NaCl crystals without added nitrogen-doped agents. The synthesis process is rapid (<5 min) and easy. The synthesized nitrogen-doped carbon dots (NCDs) are characterized using photoluminescence (PL) spectroscopy, transmission electron microscopy (TEM), scan electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, and energy dispersive X-ray (EDX) analysis. The synthesized NCDs exhibit high fluorescence and are effectively used in the instant and fast detection of tea freshness.

以虾壳为碳氮源，采用不添加氮掺杂剂的NaCl晶体切割工艺，在室温下制备高荧光氮碳点。合成过程快速（5分钟），操作简单。利用光致发光（PL）光谱、透射电子显微镜（TEM）、扫描电子显微镜（SEM）、傅里叶变换红外（FTIR）光谱和能量色散x射线（EDX）分析对合成的氮掺杂碳点（NCDs）进行了表征。合成的NCDs具有高荧光特性，可有效地用于茶叶新鲜度的即时快速检测。

引用次数: 0