Pub Date : 2024-03-26DOI: 10.15251/djnb.2024.191.359
C. Maghni, C. Zaouche, L. Dahbi, S. Saggai, E. Guedda
The effect of Ag doping on the optical, structural, and electrical properties of deposited Ni1-xAgxO thin films deposited on glass substrates by spray pyrolysis has been studied. This work aims to investigate the optical and physical characteristics variations of Ni1- xAgxO thin films fabricated into semiconductors with varying doping levels x. The values of 0 at.%, 2 at.%, 4 at.%, 6 at.%, and 8 at.% are these levels. The transmission spectra demonstrate the good optical transparency of the Ni1-xAgxO thin films in the visible range of 70% to 85%. The thin films of Ni1-xAgxO exhibited optical gap energies ranging from 3.63 to 3.71eV. Between 329 and 430meV was the range of the Urbach energy. Nonetheless, numerous flaws with the highest Urbach energy are observed in Ni0.92Ag0.08O thin films. The lowest optical gap energy is found in Ni0.92Ag0.08O thin sheets. A maximum of 0.024(Ω.cm)-1 electrical conductivity was observed in the Ni0.92Ag0.08O thin films. Our films have an average electrical conductivity of approximately 0.0176(Ω.cm)-1 . The Ni1- xAgxO thin film XRD patterns show that the films have a cubic structure and are polycrystalline.
{"title":"Investigating the physicochemical characteristics of monovalent metal-doped nickel oxide thin films","authors":"C. Maghni, C. Zaouche, L. Dahbi, S. Saggai, E. Guedda","doi":"10.15251/djnb.2024.191.359","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.359","url":null,"abstract":"The effect of Ag doping on the optical, structural, and electrical properties of deposited Ni1-xAgxO thin films deposited on glass substrates by spray pyrolysis has been studied. This work aims to investigate the optical and physical characteristics variations of Ni1- xAgxO thin films fabricated into semiconductors with varying doping levels x. The values of 0 at.%, 2 at.%, 4 at.%, 6 at.%, and 8 at.% are these levels. The transmission spectra demonstrate the good optical transparency of the Ni1-xAgxO thin films in the visible range of 70% to 85%. The thin films of Ni1-xAgxO exhibited optical gap energies ranging from 3.63 to 3.71eV. Between 329 and 430meV was the range of the Urbach energy. Nonetheless, numerous flaws with the highest Urbach energy are observed in Ni0.92Ag0.08O thin films. The lowest optical gap energy is found in Ni0.92Ag0.08O thin sheets. A maximum of 0.024(Ω.cm)-1 electrical conductivity was observed in the Ni0.92Ag0.08O thin films. Our films have an average electrical conductivity of approximately 0.0176(Ω.cm)-1 . The Ni1- xAgxO thin film XRD patterns show that the films have a cubic structure and are polycrystalline.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140378998","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}
Pub Date : 2024-03-26DOI: 10.15251/djnb.2024.191.435
Q. Y. Huang, S. Z. Wang, L. Dong, C. Chen, X. L. Zhao
The stable micro-aqueous groups (MAGs) were prepared by using sodium dodecyl sulfate (SDS) and sorbitan fatty acid ester (Span80) as emulsifiers. Fe3O4/PAM composite microspheres (CMPs) were obtained by inverse emulsion polymerization in MAGs. The experimental results showed that the size of the spherical Fe3O4/PAM CMPs was about 135-420nm and the saturation magnetization value of them was about 23.3emu/g. In the Fe3O4/PAM CMPs, the mass fraction of PAM was about 76.5%. The viscosity of the emulsion containing Fe3O4/PAM CMPs increased with the increase of current and decreased with the increase of shear rate
{"title":"Preparation of magnetic Fe3O4/PAM composite microspheres by inverse emulsion polymerization","authors":"Q. Y. Huang, S. Z. Wang, L. Dong, C. Chen, X. L. Zhao","doi":"10.15251/djnb.2024.191.435","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.435","url":null,"abstract":"The stable micro-aqueous groups (MAGs) were prepared by using sodium dodecyl sulfate (SDS) and sorbitan fatty acid ester (Span80) as emulsifiers. Fe3O4/PAM composite microspheres (CMPs) were obtained by inverse emulsion polymerization in MAGs. The experimental results showed that the size of the spherical Fe3O4/PAM CMPs was about 135-420nm and the saturation magnetization value of them was about 23.3emu/g. In the Fe3O4/PAM CMPs, the mass fraction of PAM was about 76.5%. The viscosity of the emulsion containing Fe3O4/PAM CMPs increased with the increase of current and decreased with the increase of shear rate","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140379276","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}
Pub Date : 2024-03-26DOI: 10.15251/djnb.2024.191.383
Z. Y. Xue, C. Q. Li, H. W. Niu, J. F. Ou, F. J. Wang, X. Z. Fang, W. Li, A. Amirfazl
In recent years, inspired by “biomimicry”, superhydrophobic surfaces have gained significant attention. Superhydrophobic surfaces demonstrate notable advantages in addressing interfacial issues, and superhydrophobic coatings exhibit excellent waterproofness, anti-fouling, self-cleaning, anti-corrosion, and additional capabilities, making them promising next-generation waterproof materials. However, the complex preparation process, coupled with poor wear resistance and environmental durability, severely limits their practical applications. Therefore, this article started from simplifying the preparation process and improving the durability of the coatings. Epoxy resin (E51) was used as the film-forming material, and carbon nanotubes (CNTs) and dual-sized SiC particles (nano-SiC and micro-SiC) were used as the fillers. Room temperature vulcanized silicone rubber (RTV) was used as a binder interacting with epoxy resin to promote the interface interaction between the fillers and the polymers. This process resulted in the successful preparation of superhydrophobic coatings with outstanding comprehensive performance. When the ratio of μ-SiC to n-SiC was 1:1, the prepared coating exhibited the best superhydrophobic properties with a water contact angle (WCA) of 167.4° and a sliding angle (SA) of 4.6°. Even after undergoing severe mechanical tests, such as sandpaper abrasion for 1000 cycles, sand impact for 100 cycles, cross-cut test, and tape-peeling for 70 cycles, the coatings still maintained their non-wetting Cassie-Baxter state. Furthermore, even after immersion in strong acid, strong alkali and 3.5 wt% NaCl solutions for 6 days, keeping at 500 ℃ for 2 hours, and exposure to ultraviolet for 6 days, the coatings still exhibited excellent superhydrophobicity. This suggested that the prepared coating had excellent chemical stability and high-temperature resistance. In addition, the superhydrophobic coating exhibited exceptional capabilities in self-cleaning, anti-corrosion, anti-icing, and de-icing properties. Furthermore, this coating, applicable to diverse substrates including board, steel, paper, and glass, demonstrated an impressive water contact angle (WCA) and sliding angle (SA). The spraying method offers the benefits of simplicity and cost-effectiveness. This is poised to significantly broaden its practical applications in various fields, including construction, transportation, and the chemical industry.
{"title":"Fabrication of high-durability superhydrophobic coatings based on dual-sized SiC particles","authors":"Z. Y. Xue, C. Q. Li, H. W. Niu, J. F. Ou, F. J. Wang, X. Z. Fang, W. Li, A. Amirfazl","doi":"10.15251/djnb.2024.191.383","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.383","url":null,"abstract":"In recent years, inspired by “biomimicry”, superhydrophobic surfaces have gained significant attention. Superhydrophobic surfaces demonstrate notable advantages in addressing interfacial issues, and superhydrophobic coatings exhibit excellent waterproofness, anti-fouling, self-cleaning, anti-corrosion, and additional capabilities, making them promising next-generation waterproof materials. However, the complex preparation process, coupled with poor wear resistance and environmental durability, severely limits their practical applications. Therefore, this article started from simplifying the preparation process and improving the durability of the coatings. Epoxy resin (E51) was used as the film-forming material, and carbon nanotubes (CNTs) and dual-sized SiC particles (nano-SiC and micro-SiC) were used as the fillers. Room temperature vulcanized silicone rubber (RTV) was used as a binder interacting with epoxy resin to promote the interface interaction between the fillers and the polymers. This process resulted in the successful preparation of superhydrophobic coatings with outstanding comprehensive performance. When the ratio of μ-SiC to n-SiC was 1:1, the prepared coating exhibited the best superhydrophobic properties with a water contact angle (WCA) of 167.4° and a sliding angle (SA) of 4.6°. Even after undergoing severe mechanical tests, such as sandpaper abrasion for 1000 cycles, sand impact for 100 cycles, cross-cut test, and tape-peeling for 70 cycles, the coatings still maintained their non-wetting Cassie-Baxter state. Furthermore, even after immersion in strong acid, strong alkali and 3.5 wt% NaCl solutions for 6 days, keeping at 500 ℃ for 2 hours, and exposure to ultraviolet for 6 days, the coatings still exhibited excellent superhydrophobicity. This suggested that the prepared coating had excellent chemical stability and high-temperature resistance. In addition, the superhydrophobic coating exhibited exceptional capabilities in self-cleaning, anti-corrosion, anti-icing, and de-icing properties. Furthermore, this coating, applicable to diverse substrates including board, steel, paper, and glass, demonstrated an impressive water contact angle (WCA) and sliding angle (SA). The spraying method offers the benefits of simplicity and cost-effectiveness. This is poised to significantly broaden its practical applications in various fields, including construction, transportation, and the chemical industry.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140379942","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}
Pub Date : 2024-03-26DOI: 10.15251/djnb.2024.191.409
A. Touane, M. Diafi, S. Benamor, D. Sahnoune
Alloying Zn with other metals is an alternative method to create advanced alloys with better corrosion properties, in this work the electrodeposition of Zn-Al binary alloy in sulphate-based acidic bath and with different Al2O12S3 content from 0.03 to 0.1M on a treated copper substrates was studied, the structure and microstructure of the coatings were analysed by X-ray diffraction (XRD) and scanning electron microscope (SEM) supported by (EDX) analysis, the microhardness was measured, the corrosion resistance was evaluated by potentiodynamic polarization (Tafel), the effect of Al ions was visible on the structure, (XRD) spectra showed zinc phase (η-phase), and Al phase (α-Al phase) with Al peak intensity increasing along with the increase of Al concentration, the microhardness also enhanced gradually to 252.33 HV, the corrosion current density decreased by almost 13 times and the corrosion resistance was drastically improved at 0.1M Al.
{"title":"Effects of Al content on microstructure and corrosion behavior of Zn-Al alloy coatings","authors":"A. Touane, M. Diafi, S. Benamor, D. Sahnoune","doi":"10.15251/djnb.2024.191.409","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.409","url":null,"abstract":"Alloying Zn with other metals is an alternative method to create advanced alloys with better corrosion properties, in this work the electrodeposition of Zn-Al binary alloy in sulphate-based acidic bath and with different Al2O12S3 content from 0.03 to 0.1M on a treated copper substrates was studied, the structure and microstructure of the coatings were analysed by X-ray diffraction (XRD) and scanning electron microscope (SEM) supported by (EDX) analysis, the microhardness was measured, the corrosion resistance was evaluated by potentiodynamic polarization (Tafel), the effect of Al ions was visible on the structure, (XRD) spectra showed zinc phase (η-phase), and Al phase (α-Al phase) with Al peak intensity increasing along with the increase of Al concentration, the microhardness also enhanced gradually to 252.33 HV, the corrosion current density decreased by almost 13 times and the corrosion resistance was drastically improved at 0.1M Al.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140380842","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}
Pub Date : 2024-03-26DOI: 10.15251/djnb.2024.191.325
N. L. M. Shamsuddin, K. Mohamed
Physical topography modification is an approach to fabricate nanostructures surfaces with antimicrobial properties. Lithography-based technologies offer an effective technique to develop the desired sizes and geometry. The replica molding technique was employed to fabricate the PDMS nanostructures using the PMMA imaging layer and characterized using a FESEM and AFM. The cell viability of gram-positive bacteria on structural diminished by almost 80% and the cells were deformed and ruptured once attached to the structured surface. Thus, the PDMS structured surface enhanced the bactericidal properties of the film, which effectively inhibit bacterial attachment.
{"title":"The fabrication process of polydimethylsiloxane (PDMS) nanostructured films with antimicrobial properties against methicillin-resistant staphylococcus aureus (MRSA)","authors":"N. L. M. Shamsuddin, K. Mohamed","doi":"10.15251/djnb.2024.191.325","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.325","url":null,"abstract":"Physical topography modification is an approach to fabricate nanostructures surfaces with antimicrobial properties. Lithography-based technologies offer an effective technique to develop the desired sizes and geometry. The replica molding technique was employed to fabricate the PDMS nanostructures using the PMMA imaging layer and characterized using a FESEM and AFM. The cell viability of gram-positive bacteria on structural diminished by almost 80% and the cells were deformed and ruptured once attached to the structured surface. Thus, the PDMS structured surface enhanced the bactericidal properties of the film, which effectively inhibit bacterial attachment.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140379876","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}
Pub Date : 2024-03-26DOI: 10.15251/djnb.2024.191.401
J. W. Shen, X. Z. Fang, Z. W. Feng, X. Huang
In this work, a zeolite-imidazole framework (ZIF-8) was first synthesized and used as a corrosion inhibitor container to enhance the anti-corrosion property. After encapsulated the benzotriazole (BTA) corrosion inhibitor and coated with epoxy resin (EP) on the surface of Cu plate, the obtained sample B-ZIF-8@EP exhibited enhanced corrosion protection with high impedance and positive self-corrosion potential due to the release of BTA in the corrosion process. It is believed that this work is very helpful for extending the diversity of anti-corrosion coatings.
{"title":"Enhancement of the anti-corrosion performance based on the zeolitic imidazolate framework","authors":"J. W. Shen, X. Z. Fang, Z. W. Feng, X. Huang","doi":"10.15251/djnb.2024.191.401","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.401","url":null,"abstract":"In this work, a zeolite-imidazole framework (ZIF-8) was first synthesized and used as a corrosion inhibitor container to enhance the anti-corrosion property. After encapsulated the benzotriazole (BTA) corrosion inhibitor and coated with epoxy resin (EP) on the surface of Cu plate, the obtained sample B-ZIF-8@EP exhibited enhanced corrosion protection with high impedance and positive self-corrosion potential due to the release of BTA in the corrosion process. It is believed that this work is very helpful for extending the diversity of anti-corrosion coatings.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140380070","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}
Pub Date : 2024-03-26DOI: 10.15251/djnb.2024.191.351
L. Tahar, K. Malika
In this paper, we have designed and simulated an implantable MEMS-based LC pressure sensor for bladder pressure monitoring. The device is composed of metal-insulator-metal capacitive sensor in which the size of the diaphragm is 1 mm × 1 mm of 5 µm thickness. Besides, novel modified-slotted diaphragm is developed to improve the sensitivity by decreasing the mechanical rigidity of the membrane. We used the COMSOL Multiphysics a tool for design and simulation. According to the results, the frequency response to the variable pressure is varied within the range of 35.23 to 119.72 MHz, the results also yield a value obtained of the quality factor is worth 32 with high value of 4.22 kHz/Pa sensor sensitivity. Hence, this sensor with a novel modified-slotted diaphragm has a high-pressure sensitivity, which shows 2.91 times more sensitivity than clamped diaphragm.
{"title":"Ultra-sensitive LC MEMS for bladder pressure monitoring using modified slotted diaphragm","authors":"L. Tahar, K. Malika","doi":"10.15251/djnb.2024.191.351","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.351","url":null,"abstract":"In this paper, we have designed and simulated an implantable MEMS-based LC pressure sensor for bladder pressure monitoring. The device is composed of metal-insulator-metal capacitive sensor in which the size of the diaphragm is 1 mm × 1 mm of 5 µm thickness. Besides, novel modified-slotted diaphragm is developed to improve the sensitivity by decreasing the mechanical rigidity of the membrane. We used the COMSOL Multiphysics a tool for design and simulation. According to the results, the frequency response to the variable pressure is varied within the range of 35.23 to 119.72 MHz, the results also yield a value obtained of the quality factor is worth 32 with high value of 4.22 kHz/Pa sensor sensitivity. Hence, this sensor with a novel modified-slotted diaphragm has a high-pressure sensitivity, which shows 2.91 times more sensitivity than clamped diaphragm.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140380965","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}
Pub Date : 2024-03-26DOI: 10.15251/djnb.2024.191.417
C. Shen, J. Li, D. Guo, L. Sha
Using acetic acid instead of dimethylformamide as solvent, lignin-based nanofibers were prepared by electrospinning with industrial low molecular weight lignin. After pre-oxidation and carbonization, the fibril was transformed into carbon fiber. The results showed that different viscosity of spinning solution and different parameters of electrospinning have great influence on the morphology of fibers. The diameter of fibers could be concentrated in 300-500nm by using the best electrospinning process. After carbonizing the fibers, it was found that the lignin fibers could retain the morphology of the fibers after carbonization at a suitable heating rate and holding temperature. This study showed the conditions required for the preparation of carbon fiber from low molecular weight lignin, and provided a way for high value utilization of waste biomass and green preparation of carbon fiber.
{"title":"Investigation on spinnability of low molecular weight alkaline lignin to fabricate biobased carbon fiber","authors":"C. Shen, J. Li, D. Guo, L. Sha","doi":"10.15251/djnb.2024.191.417","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.417","url":null,"abstract":"Using acetic acid instead of dimethylformamide as solvent, lignin-based nanofibers were prepared by electrospinning with industrial low molecular weight lignin. After pre-oxidation and carbonization, the fibril was transformed into carbon fiber. The results showed that different viscosity of spinning solution and different parameters of electrospinning have great influence on the morphology of fibers. The diameter of fibers could be concentrated in 300-500nm by using the best electrospinning process. After carbonizing the fibers, it was found that the lignin fibers could retain the morphology of the fibers after carbonization at a suitable heating rate and holding temperature. This study showed the conditions required for the preparation of carbon fiber from low molecular weight lignin, and provided a way for high value utilization of waste biomass and green preparation of carbon fiber.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140378370","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}
Pub Date : 2024-03-26DOI: 10.15251/djnb.2024.191.337
K. Chen, G. D. Fan, Y. M. Xia, J. F. Ou
A labyrinth microstructure interconnected by micron and submicron acicular structures was successfully prepared by immersing nickel-aluminum bronze in 9 wt% FeCl3·6H2O solution at room temperature for 40 min. After being modified with 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane (FAS-17), the microstructure surface displays robustly low-adhesion superhydrophobicity, and the water contact angle is above 160 ° on it. In addition, the superhydrophobic surface exhibits excellent corrosion resistance and stability in 3.5wt % NaCl aqueous solution and corrosion solution with different pH values.
{"title":"Fabrication and anti-corrosion performances of robust superhydrophobic surface on NAB via solution-etching","authors":"K. Chen, G. D. Fan, Y. M. Xia, J. F. Ou","doi":"10.15251/djnb.2024.191.337","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.337","url":null,"abstract":"A labyrinth microstructure interconnected by micron and submicron acicular structures was successfully prepared by immersing nickel-aluminum bronze in 9 wt% FeCl3·6H2O solution at room temperature for 40 min. After being modified with 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane (FAS-17), the microstructure surface displays robustly low-adhesion superhydrophobicity, and the water contact angle is above 160 ° on it. In addition, the superhydrophobic surface exhibits excellent corrosion resistance and stability in 3.5wt % NaCl aqueous solution and corrosion solution with different pH values.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140381235","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}
Pub Date : 2024-03-01DOI: 10.15251/djnb.2024.191.275
U. Werapun, W. Werapun, A. Phatthiya
This study focused on bioplastics and composite bioplastics with incorporated ZnO and TiO2. The ZnO gave a film more transparent than that made with TiO2. The effects of these additives on physical and mechanical properties, biodegradability, surface morphology, and thermal properties of the films were investigated. The functional groups O-H, C-H, C=O, and C-O in the bioplastic and the composites were confirmed by FT-IR. The addition of ZnO and TiO2 could increase thermal stability. The composites exhibited higher tensile strength than the control bioplastic film. The bioplastic film was 100% biodegradable compared to 14.71% and 14.59% for ZnO and TiO2 containing bioplastic films, respectively.
{"title":"Characterization of composite bioplastic from Cassava starch with titanium dioxide and zinc oxide","authors":"U. Werapun, W. Werapun, A. Phatthiya","doi":"10.15251/djnb.2024.191.275","DOIUrl":"https://doi.org/10.15251/djnb.2024.191.275","url":null,"abstract":"This study focused on bioplastics and composite bioplastics with incorporated ZnO and TiO2. The ZnO gave a film more transparent than that made with TiO2. The effects of these additives on physical and mechanical properties, biodegradability, surface morphology, and thermal properties of the films were investigated. The functional groups O-H, C-H, C=O, and C-O in the bioplastic and the composites were confirmed by FT-IR. The addition of ZnO and TiO2 could increase thermal stability. The composites exhibited higher tensile strength than the control bioplastic film. The bioplastic film was 100% biodegradable compared to 14.71% and 14.59% for ZnO and TiO2 containing bioplastic films, respectively.","PeriodicalId":11233,"journal":{"name":"Digest Journal of Nanomaterials and Biostructures","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140282841","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}
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