Nanomaterials最新文献_第4页

Advances in Enhancing the Photothermal Performance of Nanofluid-Based Direct Absorption Solar Collectors. 提高纳米流体基直接吸收太阳能集热器光热性能的研究进展。

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-17 DOI: 10.3390/nano15181428

Zenghui Zhang, Xuan Liang, Dan Zheng, Jin Wang, Chungen Yin

{"title":"Advances in Enhancing the Photothermal Performance of Nanofluid-Based Direct Absorption Solar Collectors.","authors":"Zenghui Zhang, Xuan Liang, Dan Zheng, Jin Wang, Chungen Yin","doi":"10.3390/nano15181428","DOIUrl":"10.3390/nano15181428","url":null,"abstract":"The integration of nanofluids into solar collectors has gained increasing attention due to their potential to enhance heat transfer and support the transition toward low-carbon energy systems. However, a systematic understanding of their photothermal performance under the direct absorption mode remains lacking. This review addresses this gap by critically analyzing the role of nanofluids in solar energy harvesting, with a particular focus on the direct absorption mechanisms. Nanofluids enhance solar radiation absorption through improved light absorption by nanoparticles, surface plasmon resonance in metals, and enhanced heat conduction and scattering effects. The novelty of this work lies in its comparative evaluation of advanced nanofluids, including magnetic nanofluids, plasma nanofluids, and nanophase change slurries, highlighting their unique capabilities in flow manipulation, thermal storage, and optical energy capture. Future research directions are identified, such as the life cycle assessment (LCA) of nanofluids in solar systems, applications of hybrid nanofluids, development of predictive models for nanofluid properties, optimization of nanofluid performance, and integration of Direct Absorption Solar Collectors (DASCs). In addition, challenges related to the stability, production cost, and toxicity of nanofluids are critically analyzed and discussed for practical applications. This paper offers guidance for the design and application of high-performance nanofluids in next-generation solar energy systems.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 18","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12472239/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145150036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-Objective Optimization for Nano-Silica-Modified Concrete Based on Explainable Machine Learning. 基于可解释机器学习的纳米二氧化硅改性混凝土多目标优化。

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-16 DOI: 10.3390/nano15181423

Yue Gu, Ruyan Fan, Yikun Li, Jiaqiang Zhao, Zijian Song, Hongqiang Chu

{"title":"Multi-Objective Optimization for Nano-Silica-Modified Concrete Based on Explainable Machine Learning.","authors":"Yue Gu, Ruyan Fan, Yikun Li, Jiaqiang Zhao, Zijian Song, Hongqiang Chu","doi":"10.3390/nano15181423","DOIUrl":"10.3390/nano15181423","url":null,"abstract":"Nano-silica modified concrete (NSC) has been widely applied in engineering practice. However, conventional manual mix proportion design is both time-consuming and costly. In this study, four machine learning models-XGBoost, CatBoost, Random Forest, and AdaBoost-were trained to predict the compressive strength of NSC. Based on the best-performing model, the NSGA-II algorithm was employed to develop a multi-objective optimization framework, considering compressive strength, cost, and carbon emissions as objectives. The results indicated that XGBoost achieved the highest accuracy, with R2 = 0.99 and RMSE = 1.80 MPa. Feature importance analysis further revealed that nano-silica content was strongly correlated with strength (0.82) and cost (0.85). Using NSGA-II, a set of Pareto-optimal solutions was generated. The NSGA-II algorithm produced Pareto-optimal solutions, highlighting the trade-offs among the three objectives. This integrated approach effectively reduces experimental workload and provides a valuable reference for sustainable NSC mix proportion design.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 18","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12472255/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nano-Heterojunction NO₂ Gas Sensor Based on n-ZnO Nanorods/p-NiO Nanoparticles Under UV Illumination at Room Temperature. 室温紫外光照射下基于n-ZnO /p-NiO纳米异质结NO2气体传感器

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-16 DOI: 10.3390/nano15181426

Yoon-Seo Park, Sohyeon Kim, Junyoung Lee, Jae-Hoon Jeong, Sung-Yun Byun, Jiyoon Shin, Il-Kyu Park, Kyoung-Kook Kim

{"title":"Nano-Heterojunction NO2 Gas Sensor Based on n-ZnO Nanorods/p-NiO Nanoparticles Under UV Illumination at Room Temperature.","authors":"Yoon-Seo Park, Sohyeon Kim, Junyoung Lee, Jae-Hoon Jeong, Sung-Yun Byun, Jiyoon Shin, Il-Kyu Park, Kyoung-Kook Kim","doi":"10.3390/nano15181426","DOIUrl":"10.3390/nano15181426","url":null,"abstract":"Room-temperature (RT) gas sensors for nitrogen dioxide (NO2) detection face persistent challenges, including reliance on high operating temperatures and inefficient charge carrier utilization under UV activation. To address these limitations, we engineered a p-n nano-heterojunction (NHJ) gas sensor by integrating p-type nickel oxide (NiO) nanoparticles onto n-type zinc oxide (ZnO) nanorods. This architecture leverages UV-driven carrier generation and interfacial electric fields at the NHJ to suppress recombination, enabling unprecedented RT performance. By optimizing thermal annealing conditions, we achieved a well-defined heterojunction with uniform NiO distribution on the top of the ZnO nanorods, validated through electron microscopy and X-ray photoelectron spectroscopy. The resulting sensor exhibits a 5.4-fold higher normalized response to 50 ppm NO2 under 365 nm UV illumination compared to pristine ZnO, alongside rapid recovery and stable cyclability. The synergistic combination of UV-assisted carrier generation and heterojunction-driven interfacial modulation offers a promising direction for next-generation RT gas sensors aimed at environmental monitoring.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 18","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12472634/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifunctional Colloidal Quantum Dots-Based Light-Emitting Devices for On-Chip Integration. 片上集成多功能胶体量子点发光器件。

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-16 DOI: 10.3390/nano15181422

Ruoyang Li, Jie Zhao, Yifei Qiao, Xiaoyan Liu, Shiliang Mei

{"title":"Multifunctional Colloidal Quantum Dots-Based Light-Emitting Devices for On-Chip Integration.","authors":"Ruoyang Li, Jie Zhao, Yifei Qiao, Xiaoyan Liu, Shiliang Mei","doi":"10.3390/nano15181422","DOIUrl":"10.3390/nano15181422","url":null,"abstract":"Colloidal quantum dots (CQDs) have attracted significant attention in optoelectronics due to their size-tunable bandgap, high photoluminescence quantum yield, and solution processability, which enable integration into compact and energy-efficient systems. This review consolidates recent progress in multifunctional CQD-based light-emitting devices and on-chip integration strategies. This review systematically examines fundamental CQD properties (quantum confinement, carrier dynamics, and core-shell heterostructures), key synthesis methods including hot injection, ligand-assisted reprecipitation, and microfluidic flow synthesis, and device innovations such as light-emitting field-effect transistors, light-emitting solar cells, and light-emitting memristors, alongside on-chip components including ongoing electrically pumped lasers and photodetectors. This review concludes that synergies in material engineering, device design, and system innovation are pivotal for next-generation optoelectronics, though challenges such as environmental instability, Auger recombination, and CMOS compatibility require future breakthroughs in atomic-layer deposition, 3D heterostructures, and data-driven optimization.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 18","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12472826/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrophilic Modification of Gadolinium Oxide by Building Double Molecular Structures. 建立双分子结构对氧化钆的亲水性改性。

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-16 DOI: 10.3390/nano15181421

Qin Li, Jian Chen, Xingwu Zhang, Chenjie Ruan, Weiwei Wu

{"title":"Hydrophilic Modification of Gadolinium Oxide by Building Double Molecular Structures.","authors":"Qin Li, Jian Chen, Xingwu Zhang, Chenjie Ruan, Weiwei Wu","doi":"10.3390/nano15181421","DOIUrl":"10.3390/nano15181421","url":null,"abstract":"With the rapid growth of nuclear energy, effective shielding of radioactive nuclear by-products is critical for safety and environmental protection. Gadolinium (Gd) is ideal for neutron shielding due to its exceptionally high thermal neutron capture cross-section. Despite significant progress in developing various Gd-based shielding materials, poor interfacial compatibility between Gd2O3 and polymer matrices remains a significant limitation. In this study, we addressed this challenge by successfully modifying Gd2O3 nanoparticles (Gd2O3@SIT-M) through the construction of a dual-layer molecular coating using electrostatic interactions. Initially, Gd2O3 was functionalized with the silane coupling agent 3-(trihydroxysilyl) propyl-1-propane-sulfonic acid (SIT), followed by subsequent assembly of polyether amine M2070 onto this modified surface. The combined presence of hydrophilic sulfonic acid groups from SIT and amine-ether groups from M2070 endowed Gd2O3@SIT-M nanoparticles with excellent hydrophilicity, significantly reducing their aqueous contact angle to 14.34°. Consequently, this modification strategy notably enhanced the dispersion stability of Gd2O3 nanoparticles in aqueous solutions and polymer matrices. The developed approach thus provides an effective pathway for fabricating advanced polymer-based neutron shielding materials with improved dispersibility, stability, and overall performance.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 18","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12472387/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145150226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applications of Advanced Electrospun Nanofibrous Materials in Water Treatment. 先进电纺纳米纤维材料在水处理中的应用。

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-16 DOI: 10.3390/nano15181424

Aiqi Wang, Rui Pan, Jinlei Miao, Yishen Lin, Yuanrou Deng, Siqi Peng, Xiuhuan Luo, Pinhong Wu, Shuting Zhang, Yuanyuan Wu, Jiarong Xie, Tingting Fan

引用次数: 0

Advances in Magnetic Nanocomposite Adsorbents for Water Remediation: Design, Performance, and Challenges. 磁性纳米复合吸附剂在水修复中的研究进展：设计、性能和挑战。

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-16 DOI: 10.3390/nano15181425

Mingyu Yan, Chao Sun, Keying Sun, Derui Chen, Longbin Xu, Shunyu Han, Xinyu Li

引用次数: 0

Virtual Vernier Effect-Enabled Parallel Dual-Cavity Sensor for Temperature and Humidity Synchronization. 虚拟游标效果启用并行双腔传感器的温度和湿度同步。

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-16 DOI: 10.3390/nano15181427

Yuting Li, Xiaoguang Mu, Yuqiang Yang, Han Xia, Yuying Zhang, Chengyu Mo, Zhihao Huang, Yitong Li, Fujiang Li

{"title":"Virtual Vernier Effect-Enabled Parallel Dual-Cavity Sensor for Temperature and Humidity Synchronization.","authors":"Yuting Li, Xiaoguang Mu, Yuqiang Yang, Han Xia, Yuying Zhang, Chengyu Mo, Zhihao Huang, Yitong Li, Fujiang Li","doi":"10.3390/nano15181427","DOIUrl":"10.3390/nano15181427","url":null,"abstract":"This paper presents a high-sensitivity temperature and humidity synchronous measurement sensor based on virtual Vernier demodulation, designed to overcome the limitations of traditional sensors in high-sensitivity and synchronous measurements. By combining a dual-cavity parallel structure with the Virtual Vernier effect (VVE), two interferometers were designed, with one using a temperature-sensitive material (polydimethylsiloxane, PDMS) and the other using a humidity-sensitive material (polyvinyl alcohol, PVA) for temperature and humidity measurement, respectively. Based on actual interference spectra, a modulation function was used to generate the virtual reference interferometer spectrum, which was then superimposed with the sensing interferometer's spectrum to form a virtual Vernier envelope. By monitoring the displacement of the envelope, precise measurements of temperature and humidity changes were achieved. Experimental results showed a temperature sensitivity of 5.61 nm/°C and 7.62 nm/°C, a humidity sensitivity of 0 nm/%RH and -3.07 nm/%RH, and average errors of 0.64% and 1.10% for temperature and humidity, respectively, demonstrating the feasibility of the method. The introduction of the virtual interferometer effectively reduces environmental interference with the measurement results and avoids the material loss and errors associated with traditional reference interferometers. More importantly, the VVE enables dynamic adjustment of the envelope magnification, thereby enhancing the sensor's flexibility and overcoming the structural limitations of traditional interferometers. This sensor provides efficient and reliable technological support for future environmental monitoring and climate change research.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 18","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12472732/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145150119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MoS₂-PtX₂ Vertical Heterostructures. MoS2-PtX2垂直异质结构。

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-15 DOI: 10.3390/nano15181415

Nikolay Minev, Blagovest Napoleonov, Dimitre Dimitrov, Vladimira Videva, Velichka Strijkova, Denitsa Nicheva, Ivalina Avramova, Tamara Petkova, Vera Marinova

{"title":"MoS2-PtX2 Vertical Heterostructures.","authors":"Nikolay Minev, Blagovest Napoleonov, Dimitre Dimitrov, Vladimira Videva, Velichka Strijkova, Denitsa Nicheva, Ivalina Avramova, Tamara Petkova, Vera Marinova","doi":"10.3390/nano15181415","DOIUrl":"10.3390/nano15181415","url":null,"abstract":"This study reports the successful fabrication and characterization of two-dimensional (2D) vertical heterostructures composed of a semiconducting molybdenum disulfide (MoS2) layer stacked with semimetallic platinum dichalcogenides (PtSe2 and PtTe2). The heterostructures were created using a versatile fabrication method that combines chemical vapor deposition (CVD) to grow high-quality MoS2 nanolayers with thermally assisted conversion (TAC) for the synthesis of the Pt-based layers. The final MoS2/PtSe2 and MoS2/PtTe2 heterostructures were then assembled via a dry transfer process, ensuring high structural integrity. The quality and properties of these heterostructures were investigated using a range of advanced spectroscopic techniques. Raman spectroscopy confirmed the presence of characteristic vibrational modes for each material, validating successful formation. X-ray photoelectron spectroscopy (XPS) analysis further confirmed the elemental composition and oxidation states, though it also revealed the presence of elemental Pt0 and oxidized Te+4 in the PtTe2 layer, suggesting an incomplete conversion. Importantly, the photoluminescence (PL) spectra showed a significant quenching effect, a clear sign of strong interlayer charge transfer, which is essential for optoelectronic applications. Finally, UV-Vis-NIR spectrophotometry demonstrated the combined optical properties of the stacked layers, with the Pt-based layers causing broadening and a blue-shift in the MoS2 exciton peaks, indicating altered electronic and optical behavior. This research provides valuable insights into the synthesis and fundamental properties of MoS2/PtX2 heterostructures, highlighting their potential for next-generation electronic and optoelectronic devices.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 18","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12472486/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrosion Resistance Study of Cyclocarboxypropyl Oleic Acid-Doped Polyaniline/Epoxy Composite Coatings. 环羧基丙基油酸掺杂聚苯胺/环氧复合涂料的耐腐蚀性能研究。

IF 4.3 3区材料科学

Nanomaterials Pub Date : 2025-09-15 DOI: 10.3390/nano15181416

Xinning Xu, Xiaofeng Li, Taihua Zhang, Wei Guo, Yan An, Tao Liu

{"title":"Corrosion Resistance Study of Cyclocarboxypropyl Oleic Acid-Doped Polyaniline/Epoxy Composite Coatings.","authors":"Xinning Xu, Xiaofeng Li, Taihua Zhang, Wei Guo, Yan An, Tao Liu","doi":"10.3390/nano15181416","DOIUrl":"10.3390/nano15181416","url":null,"abstract":"Corrosion inhibitors can form dense, protective layers on metal surfaces, thereby preventing the penetration of corrosive media and ensuring the long-term safety of industrial equipment and energy facilities. Polyaniline (PANI), renowned for its excellent conductivity and redox activity, not only facilitates the formation of passivation layers on metals but also mitigates pitting corrosion. In this study, a novel doped PANI was synthesized through chemical oxidation using cyclic carboxypropyl oleic acid (CCHOA) as a dopant, and its anti-corrosion properties were evaluated by incorporation into epoxy resin coatings. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR) analyses confirmed that CCHOA-doped PANI produced a more uniform and compact microstructure with reduced agglomeration. The corrosion resistance and toughness of the epoxy coatings initially improved with increasing CCHOA content, but then slightly declined, which allowed us to determine the optimal doping level for PANI. The ideal concentration was found to be 0.5 mol/L in the epoxy resin matrix.","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 18","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12472626/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145150201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0