Nano Hybrids and Composites最新文献_第2页

Review of Carbon Nanotube Toxicity and Evaluation of Possible Implications to Occupational and Environmental Health 碳纳米管毒性研究综述及对职业和环境健康可能影响的评价

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Nano Hybrids and Composites Pub Date : 2023-07-31 DOI: 10.4028/p-4gnL3O

H. Aldosari

{"title":"Review of Carbon Nanotube Toxicity and Evaluation of Possible Implications to Occupational and Environmental Health","authors":"H. Aldosari","doi":"10.4028/p-4gnL3O","DOIUrl":"https://doi.org/10.4028/p-4gnL3O","url":null,"abstract":"Carbon nanotubes (CNTs) are nanostructures made from rolled graphene planes and have several intriguing chemical and physical characteristics. Allotropes of carbon having a nanostructure that can have a length-to-diameter ratio greater than 1,000,000 are known as carbon nanotubes (CNTs). These cylindrical carbon molecules have unique features that could make them valuable in a variety of nanotechnology applications. Their distinct surface area, stiffness, strength, and durability have generated a significant amount of interest in the health industry to achieve bio-functionalities, CNTs can be connected with a variety of biological substances, such as hormones, proteins, and nucleic acids. There are two types of CNTs: single-walled (SWNTs) and multi-walled (MWNTs). Their high aspect ratio, ultralightweight, strength, strong thermal conductivity, and electrical properties ranging from metallic to semiconducting are just a few of their intriguing characteristics. Drug delivery, blood cancer, breast cancer, brain cancer, liver cancer, cervical cancer, immunological treatment, biomedical imaging, biosensors, and tissue engineering are all areas where CNTs are beneficial, and the toxicology of carbon nanotubes is also discussed here.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"14 1","pages":"35 - 49"},"PeriodicalIF":0.4,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82503589","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}

引用次数: 0

Optimization of Hydrothermal Synthesis of Dysprosium Oxide Nanoparticles- Attached-Polyethyleneglycol Template Using Response Surface Methodology- Box-Behnken 响应面法优化水热合成氧化镝纳米颗粒-附着-聚乙二醇模板- Box-Behnken

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Nano Hybrids and Composites Pub Date : 2023-07-31 DOI: 10.4028/p-6ytPC9

S. Wyantuti, Juliani Iskandar, Retna Putri Fauzia, H. Bahti

{"title":"Optimization of Hydrothermal Synthesis of Dysprosium Oxide Nanoparticles- Attached-Polyethyleneglycol Template Using Response Surface Methodology- Box-Behnken","authors":"S. Wyantuti, Juliani Iskandar, Retna Putri Fauzia, H. Bahti","doi":"10.4028/p-6ytPC9","DOIUrl":"https://doi.org/10.4028/p-6ytPC9","url":null,"abstract":"Dysprosium oxide nanoparticles (Dy2O3-nanoparticles) have been extensively used in many different fields of technologies. In addition, with a proper synthesis modification, Dy2O3-nanoparticles are promising materials not only for industry purposes, but also for biomedical applications, for instance, through polyethyleneglycol (PEG) attachment as a template on nanoparticles. This study focuses on the optimization of hydrothermal synthesis of Dy2O3-nanoparticles using Response Surface Methodology – Box-Behnken experimental design (RSM-BBD). The influences of the volume and concentration of PEG-template to the size diameter of nanoparticles were also studied. The crystal structure and surface morphology Dy2O3-nanoparticles with PEG-template modification were characterized using Tabletop Scanning Electron Microscopy (TSEM) coupled with Energy Dispersive X-Rays (SEM-EDX) and X-Rays Diffraction (XRD). Dy2O3-nanoparticles were prepared by using hydrothermal synthesis method with PEG-template attachment on the nanoparticles. PEG as a template will create the uniform shapes and prevent the agglomeration of the nanoparticles. For further biomedical applications, it also helps to enhance the biocompatibility of nanoparticles. The optimization of influence parameters on the hydrothermal synthesis of Dy2O3-nanoparticles, (e.g. mass ratio precursor (PEG and Dy2O3), temperature, and time) were investigated using RSM-BBD. The optimum conditions were 15 g PEG and 0.45 g Dy2O3 at 200°C for 7 h resulting in the highest amount of Dy2O3-nanoparticles products. SEM image results show spherical and nanowires shapes of Dy2O3-nanoparticles produced with the average size diameter of 10.1 nm as the smallest size of nanoparticles. In addition, XRD-patterns indicates the typical cubic structure of Dy2O3-nanoparticles with the estimation crystal size of 45.47 nm.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"6 1","pages":"13 - 18"},"PeriodicalIF":0.4,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84685514","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}

引用次数: 1

First-Principles Insights on the Bonding Mechanism and Electronic Structure of SWCNT and Oxygenated-SWCNT Functionalized by Cellulose Biopolymer 纤维素生物聚合物功能化的swcnts和氧化- swcnts的键合机制和电子结构的第一性原理见解

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Nano Hybrids and Composites Pub Date : 2023-07-31 DOI: 10.4028/p-pNM7bg

A. Munio, A. A. Pido, Leo Cristobal C. Ambolode II

{"title":"First-Principles Insights on the Bonding Mechanism and Electronic Structure of SWCNT and Oxygenated-SWCNT Functionalized by Cellulose Biopolymer","authors":"A. Munio, A. A. Pido, Leo Cristobal C. Ambolode II","doi":"10.4028/p-pNM7bg","DOIUrl":"https://doi.org/10.4028/p-pNM7bg","url":null,"abstract":"Here, we report the bonding mechanism and electronic structure of single-walled carbon nanotube and oxygenated single-walled carbon nanotube functionalized by cellulose chain using first-principles density functional theory. Analysis of the optimized molecular configuration and charge redistribution of the nanohybrid indicates that the cellulose chain binds with the prototype single-walled carbon nanotube and oxygenated single-walled carbon nanotube via physisorption. The cellulose chain adsorption on the single-walled carbon nanotube preserved its electronic structure. On the other hand, the electronic structure of the oxygenated single-walled carbon nanotube and cellulose complex reveals that the electronic states of the cellulose tend to populate in the forbidden gap, thus, lowering the bandgap of the overall complex. The electronic structure of the complex can be considered as the superposition of its constituents in which no significant hybridization of the orbital characters is observable. The findings confirm that cellulose is indeed suitable for the non-covalent functionalization of single-walled carbon nanotubes and provide new insights into the electronic structure of the oxygenated single-walled carbon nanotube/cellulose complex.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"14 1","pages":"51 - 63"},"PeriodicalIF":0.4,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74947704","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}

引用次数: 0

DFT Study on Na-Ion Conducting Solid Biopolymer Electrolyte-Based on Agar-Agar and NaPF6 for Sodium-Ion Batteries 钠离子电池用基于琼脂和NaPF6的na离子导电固体生物聚合物电解质的DFT研究

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Nano Hybrids and Composites Pub Date : 2023-07-31 DOI: 10.4028/p-RZ9JFl

P. Gupta, Abhishek Gupta, S. K. Gupta, Shivani Gupta, Mayank Shriwastav, R. Yadav

{"title":"DFT Study on Na-Ion Conducting Solid Biopolymer Electrolyte-Based on Agar-Agar and NaPF6 for Sodium-Ion Batteries","authors":"P. Gupta, Abhishek Gupta, S. K. Gupta, Shivani Gupta, Mayank Shriwastav, R. Yadav","doi":"10.4028/p-RZ9JFl","DOIUrl":"https://doi.org/10.4028/p-RZ9JFl","url":null,"abstract":"This research article is focused on the structural, electronic, thermal, and vibrational properties of solid biopolymer electrolytes based on Agar-Agar and sodium hexafluorophosphate (NaPF6) salt. Herein, the density functional theory (DFT) technique is used to investigate these properties. The structural analysis provides information about the interactions between Agar-Agar and NaPF6 and hence interaction energy is analysed. Thermodynamic parameters such as Gibbs’ free energy (G), enthalpy (H), entropy (S), and specific heat (Cv) etc. are studied by frequency analysis at normal temperature pressure (NTP) of titled electrolytes. The chemical descriptors of the electrolytes have been studied using the molecular orbital theory (MOT). Molecular electrostatic potential surface (MEPS) demonstrates the three-dimensional molecular charge distribution and illustrates the electron-rich and deficit regions over the whole electrolyte system. Mulliken population analysis (MPA) gives the identification of intramolecular hydrogen bonding. The theoretical infrared (IR) study confirms the formation of the complex system between Agar-Agar and NaPF6 salt. The overall DFT studies of sodium ion-based biopolymer electrolytes have better possibilities for safe sodium-ion batteries.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"19 1","pages":"65 - 78"},"PeriodicalIF":0.4,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90301600","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}

引用次数: 0

Vibrational and Structural Properties of Two-Dimensional Tin Mixed-Halide Perovskites 二维锡混合卤化物钙钛矿的振动和结构性质

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Nano Hybrids and Composites Pub Date : 2023-07-31 DOI: 10.4028/p-KAXS1n

S. Hartati, P. Y. D. Maulida, T. Zakly, I. Mulyani, D. Onggo, M. H. Mahyuddin, A. Noviyanto, A. Arramel, N. Rochman

{"title":"Vibrational and Structural Properties of Two-Dimensional Tin Mixed-Halide Perovskites","authors":"S. Hartati, P. Y. D. Maulida, T. Zakly, I. Mulyani, D. Onggo, M. H. Mahyuddin, A. Noviyanto, A. Arramel, N. Rochman","doi":"10.4028/p-KAXS1n","DOIUrl":"https://doi.org/10.4028/p-KAXS1n","url":null,"abstract":"The emergence of two-dimensional (2D) hybrid metal-halide perovskites has garnered significant attentions for optoelectronic devices and light-emitting applications. Since the toxicity of lead-based perovskites could potentially be harmful to the environment, several works have attempted to change the active metal to tin (Sn). Here, we investigate the characterization of (PEA)2SnBrxI4-x mixed halide perovskites using X-ray fluorescence (XRF), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. Qualitative XRF analysis suggests the presence of tin, bromine and iodine emissions under the mid-Z and high-Z ranges. In mid-Z range, Br-Kα peak appeared on 11.96 keV and Br-Kβ was detected on 13.3 keV. Meanwhile Sn-Kα, I-Kα, I-Kβ1, and I-Kβ2 peaks were detected in high-Z range on 25.24 keV, 28.6 keV, 32.35 keV and 33.11 keV, respectively. Thus, the elemental composition of mixed halide components exhibits an indicative control that bromine-rich or iodine-rich can be synthesized via rational chemical design. XRD pattern display a systematic progression at the peak 5.18° (corresponds to (002) plane), which unambiguously demonstrated the feasibility to tune halide composition in tin-based hybrid perovskite. It also confirms that (2D) hybrid metal-halide with tunable halide have identical structure for both bromine-rich and iodine-rich composition. Furthermore, the 2θ peaks slightly shifted to lower angle with increasing bromine composition. The presence of C−I bonding on ~500 cm-1 and C-Br bond on ~600 cm-1 in FTIR spectra highlights the functional group of organic cations. These experimental results promote a foundation to implement compositional engineering on 2D-tin mixed-halide perovskites for optoelectronics and scintillators.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"65 1","pages":"1 - 6"},"PeriodicalIF":0.4,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85617080","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}

引用次数: 0

Anatase/Rutile Phase Control of Titanium Oxide Nanoparticles Synthesized from Potassium Titanium Oxalate by Homogeneous Precipitation and Hydrothermal Methods 均相沉淀法和水热法制备草酸钛钾纳米二氧化钛的锐钛矿/金红石相控制

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Nano Hybrids and Composites Pub Date : 2023-07-31 DOI: 10.4028/p-Q5lZkp

Shohei Kajiwara, K. Itatani, H. Kuwahara, T. Yokoi, Tetsuo Sasaki, H. Kuroe

引用次数: 0

Full Factorial Design Analysis of the Facile Synthesis of Organo-Conjugated Carbon Quantum Dots from Glycerol 甘油快速合成有机共轭碳量子点的全因子设计分析

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Nano Hybrids and Composites Pub Date : 2023-05-31 DOI: 10.4028/p-t8yxr6

Roland Andrew T. Cruz

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The Upcoming Future of Metal-Organic Frameworks: Challenges and Opportunities 金属有机框架的未来:挑战与机遇

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Nano Hybrids and Composites Pub Date : 2023-05-31 DOI: 10.4028/p-oiprx0

R. Mehrotra, S. Shukla, P. Gaur

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Nano Hybrids and Composites Vol. 39 纳米杂化与复合材料》第 39 卷

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Nano Hybrids and Composites Pub Date : 2023-05-31 DOI: 10.4028/b-t6vxub

Ramesh K. Agarwal, V. Adimule, Rajendrachari Shashanka, Hamada Shoukry

引用次数: 0

Synthesis and Characterization of Carbon Quantum Dots from Saba (Musa acuminata× balbisiana) Banana Peel Waste: Effect of Maturity and Carbonization Temperature 香蕉皮废碳量子点的合成与表征:成熟度和炭化温度的影响

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Nano Hybrids and Composites Pub Date : 2023-05-31 DOI: 10.4028/p-3204ym

Ian Deniell S. Magsino, Alyssa Jehn M. Aloria, Jhon Wesley B. Magallanes, Marian B. Bauan, Marjelyn Mae M. Castillo, Nicole Karen Agena, Prancess Rowa A. Capina, Anita P. Aquino, Reymark D. Maalihan

{"title":"Synthesis and Characterization of Carbon Quantum Dots from Saba (Musa acuminata× balbisiana) Banana Peel Waste: Effect of Maturity and Carbonization Temperature","authors":"Ian Deniell S. Magsino, Alyssa Jehn M. Aloria, Jhon Wesley B. Magallanes, Marian B. Bauan, Marjelyn Mae M. Castillo, Nicole Karen Agena, Prancess Rowa A. Capina, Anita P. Aquino, Reymark D. Maalihan","doi":"10.4028/p-3204ym","DOIUrl":"https://doi.org/10.4028/p-3204ym","url":null,"abstract":"Banana peels are considered one of the most abundant biowastes while Saba banana (Musa acuminata × balbisiana) is one of the most consumed fruit varieties in the Philippines. This research focused on the synthesis and characterization of carbon quantum dots (CQDs) from ripe and unripe Saba banana peels (SBP) via hydrothermal carbonization using low (100°C) and high (200°C) carbonization temperatures. Transmission electron microscopy revealed that ripe CQDs synthesized at these temperatures (rCQDs-100 and rCQDs-200, respectively) possessed disk-shaped and quasi-spherical structures with particle size range of 1.71-5.05 nm and 1.55-4.66 nm, respectively. However, unripe CQDs (uCQDs-100 and uCQDs-200, respectively) could not be considered as quantum dots due to their flake-like morphology and relatively large particle size (>40 nm and 2.21-21.24 nm, respectively). Likewise, Fourier-transform infrared spectroscopy identified the presence of enormous functional groups in all samples. Interestingly, C=N group was found only in uCQDs corresponding to the presence of chlorophyll in the samples. Moreover, all the CQDs emitted blue-green color under UV light illumination, with rCQDs-200 exhibited the best fluorescence emission. Thus, the approach of synthesizing CQDs using ripe SBP at higher temperature offers higher reacted precursors, better morphology, and greater fluorescence emission.","PeriodicalId":18861,"journal":{"name":"Nano Hybrids and Composites","volume":"62 1","pages":"57 - 62"},"PeriodicalIF":0.4,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88372893","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}

引用次数: 0