Nanofabrication最新文献_第2页

A review on emerging micro and nanoplastic pollutants, heavy metals and their remediation techniques 新兴微纳塑料污染物、重金属及其修复技术综述

IF 2.9

Nanofabrication Pub Date : 2023-04-28 DOI: 10.37819/nanofab.008.302

Gargi Mandal, S. Mishra

引用次数: 1

Degradation of malachite green dye by capping polyvinylpyrrolidone and Azadirachta indica in hematite phase of Ni doped Fe2O3 nanoparticles via co-precipitation method 共沉淀法复盖聚乙烯吡咯烷酮和印楝在Ni掺杂Fe2O3纳米颗粒赤铁矿相中降解孔雀石绿染料

IF 2.9

Nanofabrication Pub Date : 2023-04-26 DOI: 10.37819/nanofab.008.304

Naveen Thakur, Pankaj Kumar, A. Tapwal, K. Jeet

{"title":"Degradation of malachite green dye by capping polyvinylpyrrolidone and Azadirachta indica in hematite phase of Ni doped Fe2O3 nanoparticles via co-precipitation method","authors":"Naveen Thakur, Pankaj Kumar, A. Tapwal, K. Jeet","doi":"10.37819/nanofab.008.304","DOIUrl":"https://doi.org/10.37819/nanofab.008.304","url":null,"abstract":"In the present research, a chemical co-precipitation approach has been used to approach the synthesis, characterization, and photocatalytic applicability of Ni-doped α-Fe2O3 (hematite) nanoparticles. Biosynthesized iron oxide nanoparticles (IONPs) were successfully synthesized using a non-toxic leaf extract of the Azadirachta indica (AI) plant (neem) as a reducing and stabilizing agent. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), Raman spectroscopy, FT-IR spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, and vibrating sample magnetometer (VSM) have all been used to examine the synthesized materials. All of the produced NPs contain only the nanocrystalline hematite phase, according to XRD measurements. The morphology studies of the Ni-doping hematite nanoparticles, as demonstrated by TEM and SEM. The phase purity and phonon modes of the prepared nanoparticles are confirmed by Raman spectroscopy. The UV-Vis absorption tests show also that value of the band gap increases together with the reduction in particle size, going from 2.26 eV for chemical α-Fe2O3 to 2.5 eV for green Ni-doped α-Fe2O3 nanoparticles. Additionally, it was clear from the magnetic characteristics that all of the samples behaved ferromagnetically at ambient temperatures. On the other side, malachite green (MG) dye was used as a surrogate industrial wastewater dye in order to study the photocatalytic efficiency of Ni-doped α-Fe2O3 particles. The pure/green Ni-doped α-Fe2O3 NPs showed that after 70 minutes of exposure, 92% of the MG had become discolored.","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42799358","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: 4

Transition Metal Oxides as the Electrode Material for Sodium-Ion Capacitors 过渡金属氧化物作为钠离子电容器电极材料

IF 2.9

Nanofabrication Pub Date : 2023-04-26 DOI: 10.37819/nanofab.008.303

Yamini Gupta, Poonam Siwatch, Reetika Karwasra, K. Sharma, S. K. Tripathi

{"title":"Transition Metal Oxides as the Electrode Material for Sodium-Ion Capacitors","authors":"Yamini Gupta, Poonam Siwatch, Reetika Karwasra, K. Sharma, S. K. Tripathi","doi":"10.37819/nanofab.008.303","DOIUrl":"https://doi.org/10.37819/nanofab.008.303","url":null,"abstract":"The research of energy-storage systems has been encouraged in the last ten years by the rapid development of portable electronic gadgets. Hybrid-ion capacitors are a novel kind of capacitor-battery hybrid energy storage device that has earned a lot of interest because of their high power density while maintaining energy density and a long lifecycle. Mostly, lithium-based energy storage technology is now being studied for use in electric grid storage. But the price increment and intermittent availability of lithium reserves make lithium-based commercialization unstable. Therefore, sodium-based technologies have been proposed as potential substitutes for lithium-based technologies. Sodium-ion capacitors (SICs) are acknowledged as potential innovative energy storage technologies which have lower standard electrode potentials and lower costs than lithium-ion capacitors. However, the large radius of the sodium ion also contributes to unfavorable reaction kinetics, low energy density, and brief lifespan of SICs. Recently, transition metal oxide (TMO)-based candidates have been considered potential due to the large theoretical capacity, environmental friendliness, and low cost for SICs. This brief study summarizes current advancements in research of TMOs and sodium-based TMOs as electrode candidates for SIC applications. Also, we have covered in detail the state of the exploration and upcoming prospects of TMOs for SICs.","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49220705","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

Nanofabrication and characterization of green-emitting N-doped carbon dots derived from pulp-free lemon juice extract 无浆柠檬汁萃取物制备绿色n掺杂碳点及表征

IF 2.9

Nanofabrication Pub Date : 2023-03-08 DOI: 10.37819/nanofab.008.299

María Fernanda Cárdenas-Alcaide, Reyna Berenice González-González, Angel M Villalba-Rodríguez, Itzel Y. López-Pacheco, R. Parra-Saldívar, Hafiz M. N. Iqbal

{"title":"Nanofabrication and characterization of green-emitting N-doped carbon dots derived from pulp-free lemon juice extract","authors":"María Fernanda Cárdenas-Alcaide, Reyna Berenice González-González, Angel M Villalba-Rodríguez, Itzel Y. López-Pacheco, R. Parra-Saldívar, Hafiz M. N. Iqbal","doi":"10.37819/nanofab.008.299","DOIUrl":"https://doi.org/10.37819/nanofab.008.299","url":null,"abstract":"In this work, highly fluorescent green-emitting N-doped carbon dots (N-CDs) were derived from pulp-free lemon juice extract, as a green precursor, through a one-pot carbonization at 180 oC for 3 to 5 h. The newly fabricated N-CDs were thoroughly characterized using different imaging and analytical techniques, including Scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), Fluorescence spectroscopy, X-ray diffraction analysis (XRD), and Ultraviolet-visible (UV-Vis) spectroscopy. The preliminary evaluation showed that N-CDs synthesized at 180 ºC for 3 and 5 hours emit bright green light under UV or blue light irradiation with a quantum yield of 16.33% and 21.80%, respectively. The fluorescence spectroscopic profiles revealed that as-developed N-CDs exhibit excitation-independent photoluminescence (PL) emission at 365 nm. FTIR profile reveals the functional group entities with evident peaks in 3190 cm−1, 1660 cm−1, 1580 cm−1, 1405 cm−1, 1365 cm−1, 1190 cm−1, and 1060 cm−1 regions, among others that correspond to the presence of N-H, C-H, C=O and C=N, C=C, C-H, COOH, C-O-C, and C-O. SEM unveils uniform and well-crystalline morphology of N-CDs.","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":"1 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41330954","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

Formulation and Evaluation of Mucoadhesive Buccal tablets using Nimodipine Solid Lipid Nanoparticles 尼莫地平固体脂质纳米粒子口腔粘膜粘附片的研制与评价

IF 2.9

Nanofabrication Pub Date : 2023-02-11 DOI: 10.37819/nanofab.008.296

R. Neelakandan, D. R, D. N

引用次数: 0

Optical design and fabrication of zinc selenide microlens array with extended depth of focus for biomedical imaging 用于生物医学成像的扩展焦深硒化锌微透镜阵列的光学设计与制造

IF 2.9

Nanofabrication Pub Date : 2023-02-08 DOI: 10.37819/nanofab.008.293

Neha Khatri, S. Berwal, K. Manjunath, Bharpoor Singh

{"title":"Optical design and fabrication of zinc selenide microlens array with extended depth of focus for biomedical imaging","authors":"Neha Khatri, S. Berwal, K. Manjunath, Bharpoor Singh","doi":"10.37819/nanofab.008.293","DOIUrl":"https://doi.org/10.37819/nanofab.008.293","url":null,"abstract":"Optical coherence tomography is a well-known technique for the optical imaging biological tissues. However, the depth scanning range of high-resolution optical coherence tomography is restricted by its depth of focus. In this study, a Zinc Selenide (ZnSe) Microlens Array (MLA) is employed to overcome the depth-of-focus limitation of optical coherence tomography. The ZnSe material with a low Abbe number and high chromatic dispersion extends the depth of focus with transverse resolution. The ZnSe MLA focused the incident light (from visible to near-infrared (NIR) region) on multiple focal planes with the uniform distribution of light over a biological tissue. The MLA is designed using Zemax OpticStudio software and fabricated via a single-point diamond-turning based on Slow Tool Servo (STS) configuration. STS machining has the unique advantage of offering larger degrees of freedom with no additional baggage, thereby reducing the setup time. The experimental results show the effectiveness of the STS machining process in fabricating ZnSe MLA with desired accuracies. The characterization of fabricated MLA using Coherence Correlation Interferometry (CCI) depicts uniform lenslets with no structural and positional distortion, with a total error of 32 nm within the tolerance limit.","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48905269","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

Green synthesis of gold nanoaprticles using black tea extract and their effect on the morphology and their antibacterial activity 红茶提取物绿色合成纳米金颗粒及其对形貌和抗菌活性的影响

IF 2.9

Nanofabrication Pub Date : 2023-01-29 DOI: 10.37819/nanofab.008.294

B. Srividhya, R. Subramanian, V. Raj

引用次数: 0

Applications of graphitic carbon nitride-based S-scheme heterojunctions for environmental remediation and energy conversion 石墨氮化碳基S型异质结在环境修复和能源转换中的应用

IF 2.9

Nanofabrication Pub Date : 2023-01-28 DOI: 10.37819/nanofab.008.292

Anita Sudhaik, Sonu, V. Hasija, Rangabhashiyam Selvasembian, T. Ahamad, Arachana Singh, A. Khan, P. Raizada, Pardeep Singh

{"title":"Applications of graphitic carbon nitride-based S-scheme heterojunctions for environmental remediation and energy conversion","authors":"Anita Sudhaik, Sonu, V. Hasija, Rangabhashiyam Selvasembian, T. Ahamad, Arachana Singh, A. Khan, P. Raizada, Pardeep Singh","doi":"10.37819/nanofab.008.292","DOIUrl":"https://doi.org/10.37819/nanofab.008.292","url":null,"abstract":"The contemporary era's top environmental problems include the lack of energy, recycling of waste resources, and water pollution. Due to the speedy growth of modern industrialization, the utilization of non-renewable sources has increased rapidly, which has caused many serious environmental and energy issues. In photocatalysis, as a proficient candidate, g-C3N4 (metal-free polymeric photocatalyst) has gained much attention due to its auspicious properties and excellent photocatalytic performance. But, regrettably, the quick recombination of photoinduced charge carriers, feeble redox ability, and inadequate visible light absorption are some major drawbacks of g-C3N4 that hamper its photocatalytic ability. Henceforth, these significant limitations can be solved by incorporating modification strategies. Among all modification techniques, the amalgamation of g-C3N4 with two or more photocatalytic semiconducting materials via heterojunction formation is more advantageous. In this review, we have discussed various modification strategies, including conventional, Z-scheme and S-scheme heterojunctions. S-scheme heterojunction is consideredan efficient and profitable charge transferal pathway due to the excellent departure and transferal of photoexcited charge carriers with outstanding redox ability. Consequently, the current review is focused on various photocatalytic applications of S-scheme-based g-C3N4 photocatalysts in pollutant degradation, H2 production, and CO2 reduction.","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46224360","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: 7

Recent Updates on Metal-Polymer Nanocomposites in 3D Bioprinting for Tissue Engineering Applications 金属-聚合物纳米复合材料在组织工程应用三维生物打印中的最新进展

IF 2.9

Nanofabrication Pub Date : 2023-01-19 DOI: 10.37819/nanofab.008.291

Bableen Flora, Rohith Kumar, Ramisa Mahdieh, Kimiya Zarei, Shaghayegh Chehrazi, S. Kaur, Arushi Sharma, Priyanka Mohapatra, Akshita Sakshi, Anjuvan Singh, K. Kesari, P. K. Gupta

引用次数: 0

A perspective on nanocomposite coatings for advanced functional applications 纳米复合涂层的先进功能应用前景展望

IF 2.9

Nanofabrication Pub Date : 2023-01-06 DOI: 10.37819/nanofab.008.270

Jaya Verma, S. Goel

引用次数: 1