Digest Journal of Nanomaterials and Biostructures最新文献_第2页

Preparation and properties of PTFE@TiO2/epoxy superhydrophobic coating PTFE@TiO2/epoxy 超疏水涂层的制备与性能

IF 0.9 4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-12-04 DOI: 10.15251/djnb.2023.184.1433

G. Q. Xu, C. Q. Li, F. J. Wang, J. F. Ou, Z. Y. Xue, A. Amirfazli

{"title":"Preparation and properties of PTFE@TiO2/epoxy superhydrophobic coating","authors":"G. Q. Xu, C. Q. Li, F. J. Wang, J. F. Ou, Z. Y. Xue, A. Amirfazli","doi":"10.15251/djnb.2023.184.1433","DOIUrl":"https://doi.org/10.15251/djnb.2023.184.1433","url":null,"abstract":"The problem of bacterial adhesion has been a challenge in everyday life and industry for decades. In this paper, polytetrafluoroethylene(PTFE) micropowder, titanium dioxide(TiO2) nanopowder, ethyl acetate and epoxy resin were sequentially added to a beaker and stirred well, then the nanoparticles were modified using perfluorooctyltriethoxysilane (POTS), and finally superhydrophobic coatings were fabricated on the surface of an aluminium sheet by spraying process. Characterisation was carried out using scanning electron microscopy and contact angle measurement, and the coating wettability, chemical stability and mechanical stability properties were investigated, and finally the coating was tested for antimicrobial properties. The study suggests that the hydrophobicity of the sample was optimal at a contact angle of 163.3° and a rolling angle of 3.2° when the ratio of PTFE micropowder to nano-TiO2 by mass was 1:4 and the ration between POTS and nanoparticles by mass was 12%. The contact angles were 137.8° and 143.6° after 25 and 32 hours of soaked in an anhydrous solution with a pH of 14 and 1, respectively. Most importantly, it exhibits good antimicrobial properties.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"35 13","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138601551","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

Characterizations of sprayed TiO2 and Cu doped TiO2 thin films prepared by spray pyrolysis method 喷雾热解法制备的喷雾二氧化钛和掺铜二氧化钛薄膜的表征

IF 0.9 4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-12-04 DOI: 10.15251/djnb.2023.184.1385

F. H. Jasim, H. R. Shakir, S. S. Chiad, N. Habubi, Z. S. A. Mosa, Y. H. Kadhim, M. Jadan

引用次数: 0

FexMo1-xS2/CNT@CC nanosheets as an efficient bifunctional electrocatalyst for overall water splitting 作为整体水分离高效双功能电催化剂的 FexMo1-xS2/CNT@CC 纳米片

IF 0.9 4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-12-04 DOI: 10.15251/djnb.2023.184.1473

Z. W. Chen, J. L. Zhu, J. Liu, A. X. Wei

引用次数: 0

Synthesis and characterization of Fe-substituting BaO nanoparticles by sol-gel method 溶胶-凝胶法合成和表征取代铁的 BaO 纳米粒子

IF 0.9 4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-12-04 DOI: 10.15251/djnb.2023.184.1327

N. Abbas, J. M. Zhang, S. Nazir, H. Akhtar, M. Zaqa, S. Saleem, G. Mustafa

{"title":"Synthesis and characterization of Fe-substituting BaO nanoparticles by sol-gel method","authors":"N. Abbas, J. M. Zhang, S. Nazir, H. Akhtar, M. Zaqa, S. Saleem, G. Mustafa","doi":"10.15251/djnb.2023.184.1327","DOIUrl":"https://doi.org/10.15251/djnb.2023.184.1327","url":null,"abstract":"Barium oxide have wide attention towards electronic device applications because of their exceptional structural, optical, electrical properties. Sol-gel process was used to prepare the nanocrystalline barium oxide. XRD investigation confirms that that the synthesized Barium oxide nanoparticles highly crystalline nature and have tetragonal structure. The crystal size measured by Scherrer formula and obtained values lies in the range (2.3- 6.7nm). The SEM micrographs revealed a reducing agglomeration and porosity with the enrichment in the doping content. IR analysis revealed that prepared samples have high purity while Raman spectra exhibited that the bands intensity of the synthesized nanoparticles was enhanced due to enhancement in force constant with the addition of doping content. UV-vis spectra analysis, performed to study the optical properties, revealed that optical band gap was decrease with increase of the doping content and obtained band gap results lies in the range (1.99-1.85 eV). Moreover, the conductivity of the prepared sample was observed increased from 7.28 × 10-5 Ʊ cm-1 to 1.79 × 10-3 Ʊ cm1, while the resistivity was decreased from 1.1 ×104 Ω cm to 5.58 ×102 Ω cm with the increasing of the doping content. The explored results exhibited that the doping iron content, enhanced the characteristics of prepared oxides. Such characteristics of BaO make a potential candidate for electronic device applications.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"28 24","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138602441","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

Combustion synthesis and characterization of visible-light-driven La/Al co-doped ZnO nanoparticles used for wastewater treatment 用于废水处理的可见光驱动 La/Al 共掺杂氧化锌纳米粒子的燃烧合成与表征

IF 0.9 4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-12-04 DOI: 10.15251/djnb.2023.184.1423

A. Phuruangrat, T. Thongtem, S. Thongtem

引用次数: 0

Enhanced high performance of aluminum/indium Co-doped lithium nickel manganese cobalt oxide for possible batteries application 增强铝/铟钴掺杂锂镍锰钴氧化物的高性能，使其在电池中的应用成为可能

IF 0.9 4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-12-04 DOI: 10.15251/djnb.2023.184.1493

S. R. Kadum, A. S. Baron, H. M. J. Haider

{"title":"Enhanced high performance of aluminum/indium Co-doped lithium nickel manganese cobalt oxide for possible batteries application","authors":"S. R. Kadum, A. S. Baron, H. M. J. Haider","doi":"10.15251/djnb.2023.184.1493","DOIUrl":"https://doi.org/10.15251/djnb.2023.184.1493","url":null,"abstract":"In this study, the Li[Li0.20Ni0.13Co0.13-yMn0.54-x]AlyInxO2 was synthesized via sol-gel method. electrochemical and structural attributes of nanopowders determined by the thermal analysis (TGA)/(DTA), structural analysis (XRD), (FESEM), chemical analysis (EDS) and (FTIR), BET analysis and their results appraised. X-ray diffraction analysis were performed to study the formation of nanopowders, illustrating the α- NaFeO2 structure with R¯3m space group. FESEM Figures showed that the nanopowders have a group of the cubic and the hexagonal particles. Chemical test of the EDS proved the existence of Aluminum and Indium. TGA/DTA tests for the displayed weight loss in the nanopowders. Infrared spectroscopy studied connectivity bonds and chemical elements that are utilized in the cathode. The powders with Al (y = 0.02) and In (x = 0. 01) represented the high cycling efficiency and have better discharge capacity. Li[Li0.20Ni0.13Co0.13-0.02Mn0.54-0.01]Al0.02In0.01O2 displayed the higher cycling consistency and the better capacity in collation with those of the nonreplacement powders. Electrochemical impedance spectroscopy (EIS) showed that adding the Indium-Aluminum impurities improved the electrochemical efficiency of the Li[Li0.20Ni0.13Co0.13Mn0.54]O2.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"26 6","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138604095","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

The influence of lead concentration on the properties of the electrodeposited zinc–lead alloy coatings 铅浓度对电沉积锌铅合金镀层性能的影响

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-10-30 DOI: 10.15251/djnb.2023.184.1269

S. Benamora, M. Diafi, A. Touane, D. Sahnoune

引用次数: 0

Synthesis of ferromagnetic material nano powder and study of its effect on antibacterial activity 铁磁材料纳米粉体的合成及其抑菌效果研究

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-10-30 DOI: 10.15251/djnb.2023.184.1203

Z. M. A. Abbas, W. A. Shatti, D. S. Kalaf

{"title":"Synthesis of ferromagnetic material nano powder and study of its effect on antibacterial activity","authors":"Z. M. A. Abbas, W. A. Shatti, D. S. Kalaf","doi":"10.15251/djnb.2023.184.1203","DOIUrl":"https://doi.org/10.15251/djnb.2023.184.1203","url":null,"abstract":"This work is to synthesize the cobalt ferrites nano powder of with the stoichiometric formula CoxFe2O4 (x= 0.8 and 1.4) by using sol-gel auto combustion method , and study structural and magnetic properties, the ferrite powders were calcined at 500, 600, and 700 °C for 3 hrs to remove organic waste and increase homogeneity and, The XRD diffraction analysis for CoxFe2O4 nanoferrites with single spinel structure. The crystal size of the formed crystallite of ferrite specimens increases with increasing temperature calcination and cobalt content , (FE-SEM) shows agglomerated with homogenous spherical and polyhedral particles. proportion of each of Fe ,Co, and O in all specimens is confirmed using the Energy Dispersive Spectrum (EDS),the magnetic characteristics are measured with a VSM. The remanence magnetization (Mr) saturation magnetization(Ms), and magnetic moment (nB) of CoxFe2O4 nanoferrites are found to go up with increasing calcination temperature, and E-coli bacteria were used to examine the inhibition of each ferrite using the diffusion-drilling agar method, as it is known that these nano powder possess therapeutic efficacy for numerous diseases.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":"43 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136133390","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

Microstructure and crystallographic texture of direct energy deposition printed 316L stainless steel 直接能量沉积印刷316L不锈钢的微观结构和晶体织构

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-10-30 DOI: 10.15251/djnb.2023.184.1293

H. R. Zhi, H. T. Zhao, Y. F. Zhang, B. Dampilon

引用次数: 0

Study on the properties of 8YSZ thermal barrier coatings by atmospheric plasma spraying 8YSZ热障涂层的大气等离子喷涂性能研究

4区材料科学

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-10-30 DOI: 10.15251/djnb.2023.184.1275

J. J. Li, Y. F. Zhang, Q. Li, Q. Hao, X.Y. Ran, X. L. Guo

引用次数: 0