scholarly journals Preparation of Zinc Oxide Nanomaterial and Research and Development of Antibacterial Property

2021 ◽  
Vol 45 (5) ◽  
pp. 407-415
Author(s):  
Jia Huang
Keyword(s):  
Zinc Oxide ◽  
Respiratory Infections ◽  
Antibacterial Property ◽  
Synthesis Method ◽  
Performance Testing ◽  
Structure Characterization ◽  
Substrate Modification ◽  
Antibacterial Performance ◽  
Prepared Material ◽  
Process Material

Children using environmentally unfriendly furniture are more likely to suffer from allergic rhinitis, respiratory infections, and leukemia. The green design of children’s furniture must consider anti-formaldehyde, deodorant, antibacterial, and antiviral factors. This paper prepares a zinc oxide (ZnO) nanomaterial for children’s furniture, and researches and develops the antibacterial property of the nanomaterial. The main contents include the synthesis method and preparation process, material morphology and structure characterization, and antibacterial performance testing. The practical substrate modification of the material was realized by pre-depositing polydopamine particles. In this way, the ZnO nanomaterial could apply to a wider range of children’s furniture, become more durable, and realize efficient multi-mechanism synergistic sterilization. Experimental results show that the prepared material has a good antibacterial property.

Fabrication, Structure Characterization, and Performance Testing of Piezoelectret-Film Sensors for Recording Body Motion

2018 ◽  
Vol 18 (1) ◽  
pp. 401-412 ◽  
Author(s):  
Peng Fang ◽  
Xingchen Ma ◽  
Xiangxin Li ◽  
Xunlin Qiu ◽  
Reimund Gerhard ◽  
...  
Keyword(s):  
Performance Testing ◽  
Structure Characterization ◽  
Body Motion ◽  
And Performance

scholarly journals Preparation of ZnO-Zn2TiO4Sol Composite Films and Its Photocatalytic Activities

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Xiujuan Qin ◽  
Li Cui ◽  
Guangjie Shao
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Oxidation ◽  
Spectral Response ◽  
Sol Gel ◽  
Composite Films ◽  
Visible Region ◽  
Performance Testing ◽  
Structure Characterization ◽  
Semiconductor Oxides ◽  
Wide Range

Ti-doped ZnO sol-composite films were prepared on the glass substrate by the two-step sol-gel technique. X-ray diffraction, Uv-Vis spectrophotometer, and FS spectrum of composite films were used to help make structure characterization and optical performance testing. The results showed that the composite was a mixture of ZnO + Zn2TiO4. Because of synergistic effect of both semiconductor oxides, composite films had a wide range of spectral response in the visible region, and the absorption band edge was about 510 nm, and the Green Belt of composite films luminous significantly enhanced. Photocatalytic oxidation experiments showed that using the composite films treatment (16.5 ml, l0 mg/L methyl orange aqueous solution)/cm2, the decolorization rate of methyl-orange was 90% after 3 hours irradiation.

scholarly journals Characterization of Zinc oxide Nanostructures prepared by hydrothermal method with Antibacterial property

2019 ◽  
Vol 17 (42) ◽  
pp. 108-124
Author(s):  
Ibrahim Abdulkareem Ali
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Crystallite Size ◽  
Annealing Temperature ◽  
Energy Gap ◽  
Antibacterial Property ◽  
Zno Nanostructures ◽  
Zinc Oxide Nanostructures ◽  
Oxide Nanostructures ◽  
Uv Visible

        In this study, Zinc oxide nanostructures were synthesized via a hydrothermal method by using zinc nitrate hexahydrate and sodium hydroxide as a precursor. Three different annealing temperatures were used to study their effect on ZnO NSs properties. The synthesized nanostructure was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Atomic force microscope (AFM), and Fourier Transform Infrared Spectroscopy (FTIR). Their optical properties were studied by using UV -visible spectroscopy. The XRD analysis confirms that all ZnO nanostructures have the hexagonal wurtzite structure with average crystallite size within the range of (30.59 - 34.52) nm. The crystallite size increased due to the incensement of annealing temperature. FESEM analysis indicates that ZnO has hexagonal shape of cylindrical pores, plate-like nanocrystals and Nanorods. AFM analysis shows that the average surface roughness of ZnO Nanostructures increases from 3.96 to 19.1 nm with the increase of annealing temperature. The FTIR peaks indicate successful preparation of ZnO Nanostructures. The FTIR method was used to analyses the chemical bonds which conformed the present of the Zn-O group in the region between (400-500) cm-1. The UV-visible showed a red shift in the absorption spectra related to the shift in the energy gap related to increase in the particle size.  the band gap energy has been calculated from the optical absorption spectra. The annealing process has been fond more effective on the value of energy gap. As the annealing temperature increases, the value of energy gap, increases as well; from (3.12to 3.22) eV. The prepared Nanostructure is used for antibacterial property. It shows strong antibacterial activity against S. aureus and P.aeuruginosa bacteria by the agar disc diffusion method. The white precipitate of ZnO NSs has superior antibacterial activity on gram-positive (S. aureus) than the gram-negative (P.aeuruginosa) bacteria.

scholarly journals Effect of chitosan-zinc oxide coated in PVDF membrane; morphology and performance testing

2020 ◽  
Vol 835 ◽  
pp. 012056
Author(s):  
A Febriasari ◽  
D Siswanta ◽  
N Riyanto ◽  
N Hidayat Aprilita ◽  
F Silvianti
Keyword(s):  
Zinc Oxide ◽  
Performance Testing ◽  
Pvdf Membrane ◽  
Membrane Morphology ◽  
And Performance

The Effect of Modification of Hydroxyapatite Whisker with Zinc Acetate via Sol-Gel Technology

2013 ◽  
Vol 364 ◽  
pp. 655-659 ◽  
Author(s):  
Jian Feng Jin ◽  
Wen Ying Liu ◽  
Wen Yun Zhang ◽  
Qing Hua Chen ◽  
Yan Bo Yuan ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Zinc Acetate ◽  
Ph Value ◽  
Antibacterial Property ◽  
Sol Gel ◽  
Annealing Treatment ◽  
Sem Images ◽  
Different Shapes

Antibacterial activity of zinc oxide (ZnO) or strengthening of hydroxylapatite whisker (HAPw) had been studied and applied widely. However, antibacterial property of ZnO-HAPw was scarcely researched nowadays. The aim of this study was to further investigate several kinds of morphologies of ZnO-HAPw prepared by sol-gel technology at different pondus hydrogenii (pH) value and temperature. Four kinds of morphologies of ZnO-HAPw were granule, triangle, short rod and gongs nail at 70°C and pH=6.4, 37°C and pH=6.6, 70°C and pH=6.6, 70°C and pH=6.6. The SEM images of HAPw and ZnO-HAPw samples showed that the HAPw surface was smooth and no difference after annealing treatment. In addition, different shapes of nanoZnO fused uniformly on the HAPw surface. The EDS indicates nanoZnO fuses on HAPw surface.

scholarly journals Antibacterial Application on Staphylococcus aureus Using Antibiotic Agent/Zinc Oxide Nanorod Arrays/Polyethylethylketone Composite Samples

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 713
Author(s):  
Dave W. Chen ◽  
Kuan-Yi Lee ◽  
Min-Hua Tsai ◽  
Tung-Yi Lin ◽  
Chien-Hao Chen ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Zinc Oxide ◽  
Synthesis Method ◽  
Antibacterial Properties ◽  
Precursor Solution ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Antibiotic Agent ◽  
Buffer Solution

In this study, zinc oxide (ZnO) nanorod arrays as antibiotic agent carriers were grown on polyetheretherketone (PEEK) substrates using a chemical synthesis method. With the concentration of ammonium hydroxide in the precursor solution kept at 4 M, ZnO nanorod arrays with diameters in the range of 100–400 nm and a loading density of 1.7 mg/cm2 were grown onto the PEEK substrates. Their drug release profiles and the antibacterial properties of the antibiotic agent/ZnO/PEEK samples in the buffer solution were investigated. The results showed that the concentrations of antibiotic agents (ampicillin or vancomycin) released from the samples into the buffer solution were higher than the value of minimum inhibitory concentration of 90% for Staphylococcus aureus within the 96 h test. The bioactivities of ampicillin and vancomycin on substrates also showed around 40% and 80% on the Staphylococcus aureus, respectively. In the antibacterial activity test, sample with the suitable loading amount of antibiotic agent had a good inhibitory effect on the growth of Staphylococcus aureus.

Template Assisted Growth of Zinc Oxide-Based Nanowires and Piezoelectric Properties

2013 ◽  
Vol 829 ◽  
pp. 757-761 ◽  
Author(s):  
Nooshin Sadat Ayati ◽  
Elahe Akbari ◽  
Seyed Pirooz Marashi ◽  
Shahyar Saramad
Keyword(s):  
Zinc Oxide ◽  
Zinc Nitrate ◽  
Zno Nanowires ◽  
Structure Characterization ◽  
X Ray Diffraction ◽  
Contact Mode ◽  
Oxide Nanowires ◽  
Nitrate Precursor ◽  
Potentiostatic Electrodeposition

In this paper, we report on the synthesis of ZnO nanowires via templated electrochemical deposition. ZnO nanowire arrays were fabricated by potentiostatic electrodeposition in track-etched polycarbonate (PC) membrane. The electrolyte was aqueous solution containing zinc nitrate precursor. The electrodeposition process involves the electroreduction of nitrate ions to alter the local pH and precipitation of the metal oxide within the pores. The morphology analysis and structure characterization of the ZnO nanowires were carried out using conventional scanning electron microscopy (SEM) and X-Ray diffraction. To check the piezoelectric characteristics of the zinc oxide nanowires, the AFM microscope is used in contact mode. The scanned area was 5µm*5µm and the affected force was 30nN. In result of scanning each nanowire with conductive AFM tip in contact mode, a current peak which had a width smaller than topography peak was fabricated. This is due to semi-conductivity and piezoelectricity characteristics of Nanowires.

Sign in / Sign up

Export Citation Format

Share Document