Nano Futures最新文献_第4页

Synthesis of AgInS2-ZnS quantum dot/TiO2 nanocomposites as efficient photocatalysts for methylene blue degradation AgInS2-ZnS量子点/TiO2纳米复合材料降解亚甲基蓝的合成

IF 2.1 4区材料科学

Nano Futures Pub Date : 2023-01-31 DOI: 10.1088/2399-1984/acb7b7

Nomfundo Ruth Lushaba, S. Parani, Rodney Maluleke, Gracia it Mwad Mbaz, O. Oluwafemi

{"title":"Synthesis of AgInS2-ZnS quantum dot/TiO2 nanocomposites as efficient photocatalysts for methylene blue degradation","authors":"Nomfundo Ruth Lushaba, S. Parani, Rodney Maluleke, Gracia it Mwad Mbaz, O. Oluwafemi","doi":"10.1088/2399-1984/acb7b7","DOIUrl":"https://doi.org/10.1088/2399-1984/acb7b7","url":null,"abstract":"Photocatalytic degradation has been demonstrated to be an efficient and eco-friendly method for the removal of dye pollutants. Herein, we report the synergetic effect of glutathione (GSH)-capped AgInS2-ZnS (AIS-ZnS) core–shell quantum dots (QDs) and titanium dioxide (TiO2) as a novel nanocomposite for the efficient photocatalytic treatment of methylene blue (MB). The AIS-ZnS core–shell QDs and the corresponding QD/TiO2 nanocomposites were synthesized directly in an aqueous medium followed by annealing. The optical properties of the AIS-ZnS core–shell QDs showed strong yellow photoluminescence, which decreased gradually with the addition of TiO2. Fourier transform infrared (FTIR) spectroscopy confirmed the GSH capping on the QDs and nanocomposites. X-ray diffraction and transmission electron microscopy revealed the nanocrystalline nature and shape of the as-synthesized materials and showed the integration of the QDs (3.9 nm) on the TiO2 particles after annealing. These materials were then investigated as a photocatalyst for MB degradation using visible light irradiation. The effect of TiO2 content in the catalyst, calcination, photoirradiation period, catalyst dose, and initial MB concentration on photodegradation of MB was studied. The results indicated that the AIS-ZnS QD/TiO2 nanocomposite exhibited better photodegradation performance compared to AIS-ZnS QDs and TiO2. The increasing TiO2 concentration in the nanocomposite also enhanced MB degradation efficiency (up to 99%). The kinetics of MB degradation follows a pseudo-first-order process. The prepared AIS-ZnS QD/TiO2 nanocomposite would serve as an effective and eco-friendly photocatalyst for MB degradation.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44670101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Controllable assessment of quantum rods with polarized emission for display applications 显示应用中偏振发射量子棒的可控评估

IF 2.1 4区材料科学

Nano Futures Pub Date : 2023-01-20 DOI: 10.1088/2399-1984/acae5a

Lixuan Chen, Jinyang Zhao, Zhiqing Shi, Miao Zhou, Shenmin Zhang, Xiaowei Sun, Xin Zhang

引用次数: 0

Ni3S4/NiS/rGO as a promising electrocatalyst for methanol and ethanol electro-oxidation Ni3S4/NiS/rGO是一种很有前途的甲醇和乙醇电氧化电催化剂

IF 2.1 4区材料科学

Nano Futures Pub Date : 2023-01-04 DOI: 10.1088/2399-1984/acb02b

S. Azizi, M. Askari, M. T. T. Moghadam, M. Seifi, A. Di Bartolomeo

引用次数: 3

Self-assembly of bioinspired peptides for biomimetic synthesis of advanced peptide-based nanomaterials: a mini-review 仿生合成先进多肽基纳米材料的仿生多肽自组装:综述

IF 2.1 4区材料科学

Nano Futures Pub Date : 2023-01-03 DOI: 10.1088/2399-1984/acafbe

Hao Kong, Guozheng Yang, Peng He, Danzhu Zhu, Xin Luan, Youyin Xu, RongQiu Mu, Gang Wei

{"title":"Self-assembly of bioinspired peptides for biomimetic synthesis of advanced peptide-based nanomaterials: a mini-review","authors":"Hao Kong, Guozheng Yang, Peng He, Danzhu Zhu, Xin Luan, Youyin Xu, RongQiu Mu, Gang Wei","doi":"10.1088/2399-1984/acafbe","DOIUrl":"https://doi.org/10.1088/2399-1984/acafbe","url":null,"abstract":"The design and motif-tailoring of peptide sequences are crucial for mediating the self-assembly of peptide molecules and the biomimetic synthesis of functional peptide-based nanomaterials. It is well known that nature provides guidance and inspiration for the design and molecular tailoring of functional peptide sequences, which can further self-assemble into complex peptide nanomaterials with adjustable dimensions. In this mini-review, we summarize recent advances in the bioinspired design and regulation of functional peptide sequences by natural things, such as mussels, milk protein, silkworm silk, frogs and Alzheimer’s disease. The self-assembly of bioinspired peptides in vitro and in vivo for controlled synthesis of various peptide-based nanomaterials is introduced and analyzed. In addition, various applications of biomimetic peptide nanomaterials for biosensors, bioimaging, cancer therapy, antibacterial materials, tissue engineering, as well as energy storage and environmental science are demonstrated in detail. Finally, we give perspectives on the future development of this promising research topic. With these efforts, we hope to promote the understanding of the optimization of bioinspired peptides and the design of novel peptide nanomaterials for advanced applications.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2023-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42827251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Amplified plasmonic emission enhancement of PbS quantum dots via Al-oxide/PMMA heterostructures Al-oxide/PMMA异质结构增强PbS量子点的放大等离子体发射

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-12-06 DOI: 10.1088/2399-1984/aca943

S. M. Sadeghi, Rithvik R. Gutha, C. Sharp

引用次数: 1

Using nanomaterials to enhance the additive manufacturing of polymeric resins 利用纳米材料增强聚合物树脂的增材制造

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-11-08 DOI: 10.1088/2399-1984/aca130

Ava G. Crowley, T. Tran, Micah J. Green

{"title":"Using nanomaterials to enhance the additive manufacturing of polymeric resins","authors":"Ava G. Crowley, T. Tran, Micah J. Green","doi":"10.1088/2399-1984/aca130","DOIUrl":"https://doi.org/10.1088/2399-1984/aca130","url":null,"abstract":"Additive manufacturing (AM) technologies, also called 3D printing, have dramatically developed over the past decade to allow new capabilities in materials processing with printed resolution comparable to that of traditional manufacturing techniques. Sequential layer deposition can lead to the creation of complex parts with minimized material waste, high manufacturing throughput, and increased prototyping ability, while also meeting the demand for mid- and low-volume production. The AM of polymer nanocomposites is a growing area of research because nanomaterial additives can enhance the mechanical, electrical, and other properties for end-use applications. However, the use of nanomaterial inclusions can also enhance the AM processes themselves. Here, we discuss works where nanomaterials are employed as local heaters for fused deposition modeling, as viscosifiers for direct ink writing, and as photothermal sensitizers for selective laser sintering and vat polymerization. We also note the disconnect between the researched AM capabilities and current industrial manufacturing; nanomaterials can bridge the technological gap and lead to new common practices in industrial manufacturing spaces.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2022-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47832293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

First report on onsite temperature based recovery of quenched chemiluminescence signal from graphenized μPADs: validation by catechins radical scavenging 石墨化μ pad猝灭化学发光信号的现场温度回收:儿茶素自由基清除验证

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-10-25 DOI: 10.1088/2399-1984/ac9d78

Pavar Sai Kumar, Paul A. Advincula, S. Goel

{"title":"First report on onsite temperature based recovery of quenched chemiluminescence signal from graphenized μPADs: validation by catechins radical scavenging","authors":"Pavar Sai Kumar, Paul A. Advincula, S. Goel","doi":"10.1088/2399-1984/ac9d78","DOIUrl":"https://doi.org/10.1088/2399-1984/ac9d78","url":null,"abstract":"Graphene-based materials are excellent acceptors of the CRET phenomenon. Due to the presence of π -conjugated planar structure, these materials were reported to quench the chemiluminescence (CL) signal. Based on this fact, herein, for the first time, the recovery of quenched CL signal from different graphene-based materials is successfully obtained through the catalytic activity of onsite temperature. The maximum recovery of a quenched signal at an optimum temperature of 70 ∘C was 1440% from the 10 mg ml−1 reduced graphene oxide paper analytical devices. The recovery of flash graphene and laser induced graphene materials were found to be 895% and 521%, respectively, for the same conditions via the generation of π -conjugated carbon radicals. Catechin, an antioxidant, was analyzed from 0.1 nM to 500 nM to interpret the generation of carbon radicals from graphenized materials. The proposed smartphone-enabled onsite heating recovery model was validated with the lower limit of 94 pM (27.3 pg ml−1) of catechin concentration without advanced photodiodes or instrumentation. The validation was performed in real samples of green tea (1 and 2). This method of CL recovery can be a future model for indicating the purity of graphene-based materials without using advanced instrumentations.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2022-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47654687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

NiCo2O4@V2O5 nanobelts as electrode materials for efficient electrochemical charge storage NiCo2O4@V2O5纳米带作为高效电化学电荷存储的电极材料

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-10-24 DOI: 10.1088/2399-1984/ac9d12

D. K. Mohapatra, M. Sahoo, S. Praharaj, D. Rout

引用次数: 0

The effect of Na doping on layered LiNi1/3Co1/3Mn1/3O2 single-crystal structure as a cathode for lithium-ion batteries 钠掺杂对锂离子电池正极层状LiNi1/3Co1/3Mn1/3O2单晶结构的影响

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-10-19 DOI: 10.1088/2399-1984/ac9bb0

Dongsheng Yu, Jili Li, Zhiyu Min, Chunjuan Tang, Peiguo Meng, Baotai Chen

{"title":"The effect of Na doping on layered LiNi1/3Co1/3Mn1/3O2 single-crystal structure as a cathode for lithium-ion batteries","authors":"Dongsheng Yu, Jili Li, Zhiyu Min, Chunjuan Tang, Peiguo Meng, Baotai Chen","doi":"10.1088/2399-1984/ac9bb0","DOIUrl":"https://doi.org/10.1088/2399-1984/ac9bb0","url":null,"abstract":"A cathode with single-crystal structure for Li-ion batteries is shown to provide stable cycle performance because of its integrated crystal structure and smaller internal stress. Here, Na+ ions with larger radius are doped into LiNi1/3Co1/3Mn1/3O2 (LNCMO) single-crystal nanoparticles through a simple sol–gel method to further improve the rate capability. Different amounts of Na doping are considered to illustrate the cooperative effect of single-crystal structure and Na doping. The results indicate that a Li0.9Na0.1Ni1/3Co1/3Mn1/3O2 cathode has a discharge capacity of 193.7 mAh g–1 at 0.2 C, much higher than the 174.8 mAh g–1 of its undoped counterpart. After 50 cycles, the capacity retention is enhanced from 71.3% for undoped LNCMO to 89.2% for Li0.9Na0.1Ni1/3Co1/3Mn1/3O2. At the same time, Li0.9Na0.1Ni1/3Co1/3Mn1/3O2 delivers a discharge capacity of 137.9 mAh g–1 at 10 C, about twice the capacity of LNCMO. Na ions doped into the lattice can magnify the distances between lithium layers and act as pins for more stable structure and faster kinetics of Li+-ion diffusion.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41664021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Facile copper ferrite/carbon quantum dot magnetic nanocomposite as an effective nanocatalyst for reduction of para-nitroaniline and ortho-nitroaniline 易变铜铁氧体/碳量子点磁性纳米复合材料作为对硝基苯胺和对硝基苯胺还原的有效纳米催化剂

IF 2.1 4区材料科学

Nano Futures Pub Date : 2022-10-13 DOI: 10.1088/2399-1984/ac9a19

Samin Naghash-Hamed, N. Arsalani, Seyed Borhan Mousavi

{"title":"Facile copper ferrite/carbon quantum dot magnetic nanocomposite as an effective nanocatalyst for reduction of para-nitroaniline and ortho-nitroaniline","authors":"Samin Naghash-Hamed, N. Arsalani, Seyed Borhan Mousavi","doi":"10.1088/2399-1984/ac9a19","DOIUrl":"https://doi.org/10.1088/2399-1984/ac9a19","url":null,"abstract":"Para-nitroaniline (PNA) and ortho-nitroaniline (ONA) are highly toxic contaminants in aqueous solution and must be treated. In the current investigation, novel magnetic nanocomposites containing copper ferrite (CuFe2O4) and gelatin-derived carbon quantum dots (CQDs) were successfully synthesized. The prepared nanocatalyst was characterized by scanning electron microscopy, x-ray diffraction, transmission electron microscopy, Brunauer–Emmet–Teller (BET), Fourier transform infrared and ultraviolet–visible techniques. The mesoporous structure of the CuFe2O4/CQD nanocomposite was shown using the BET/Barrett–Joyner–Halenda technique. The catalytic performance of the nanocatalyst during the reduction of PNA and ONA was assessed in an aqueous medium at 25 °C. The complete reduction of PNA and ONA using the CuFe2O2/CQDs nanocomposite occurred in 13 s and 35 s, respectively. The pseudo-second-order rate constant (K app) was obtained as 2.89 × 10−1 s−1 and 9.3 × 10−2 s−1 for reducing PNA and ONA, respectively. Moreover, the magnetic nanocatalyst was easily separated from the reaction solution and recycled for up to six consecutive cycles without significant loss of catalytic activity.","PeriodicalId":54222,"journal":{"name":"Nano Futures","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2022-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43238137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 31