CuO: Synthesis in a Highly Excited Oxygen-Copper Plasma and Decoration of ZnO Nanorods for Enhanced Photocatalysis

2021 ◽  
Author(s):  
Jiamin Lin ◽  
Chujun Yao ◽  
Li Wu ◽  
Kai Jiang ◽  
Zhigao Hu ◽  
...  
Keyword(s):  
Zno Nanorods ◽  
Excited Oxygen ◽  
Copper Plasma

Measurements of Vibrationally Excited Oxygen Produced in Recombining O-O2-Ar Mixtures

2021 ◽  
Author(s):  
Dirk C. van den Bekerom ◽  
Elijah Jans ◽  
Xin Yang ◽  
Anam C. Paul ◽  
Daniil Andrienko ◽  
...  
Keyword(s):  
Vibrationally Excited ◽  
Excited Oxygen

Exhibition of novel photocatalytic activity and photoluminescence properties with high inhibition towards bacterial growth by hydrothermally grown ZnO nanorods

2020 ◽  
Vol 16 ◽  
Author(s):  
Nihar Ranjan Panda ◽  
Dojalisa Sahu
Keyword(s):  
Methylene Blue ◽  
Bacterial Growth ◽  
Organic Dyes ◽  
Zno Nanorods ◽  
Antibacterial Properties ◽  
Crystallographic Structure ◽  
Inhibition Activity ◽  
Electron Microscopic ◽  
Skin Bacteria ◽  
High Inhibition

Background: Metal oxide nanomaterial such as; ZnO shows novel structural, optical, electrical and antibacterial properties due to wide band gap (3.37 eV) and high excitonic binding energy (60 meV). Probing these inherent properties of nanosized ZnO with different morphology has generated new interest among researchers Objective: To investigate the size dependent functional attributes, ZnO nanorods were prepared by hydrothermal method and the photocatalytic (PC) efficiency was studied. The photoluminescence (PL) property of ZnO nanorods was also studied by recording the emission spectrum under photo-excitation. These nanorods (NRs) were coated on cotton fabric to study the effectiveness of these NRs in defending and inhibiting the growth of different bacteria Methods: The crystallographic structure and morphology of the ZnO samples were investigated by X-ray diffraction (XRD) and field emission scanning electron microscopic (FESEM) measurements. PL measurement at room temperature was undertaken by exciting the sample with light of wavelength 350 nm. The PC property of ZnO NRs was studied in degrading organic dyes like methylene blue. Bacteria like Staphylococcus aureus, Escherichia coli and Bacillus subtilis were cultured and the inhibition of growth of these bacteria was studied by the application of ZnO. To enhance the microbe defence mechanism of fabric, we coated these NRs on fabric test samples and investigated the bacterial growth on it. Results: XRD and FESEM studies reveal the dimension of the synthesized products in nano range. These nanorods are of high density and surface roughness as per the FESEM study. PL measurement shows the presence of strong UV emission at 382 nm with defect emissions in the blue-green region opening up the path for ZnO to be used in fabrication of optoelectronic devices. PC study reveals that 89% degradation of methylene blue (MB) dye is achievable in 180 min using these ZnO catalysts. The anti-bacterial study shows that the minimum inhibitory concentration (MIC) of ZnO nanorods coated on the fabric against S. aureus is found to be 3.5 mg/ml which is the minimum as compared to E. coli (7.5 mg/ml) and B. subtilis (5.5 mg/ml). The study further enunciates that fabric coated with ZnO samples exhibited considerably high inhibition activity toward S. aureus. Conclusion: The study shows that ZnO NRs can be effectively used for fabrication of UV-LASER/LED. Photocatalytic efficiency of ZnO will be useful for degradation of organic dyes controlling environment pollution. It further enunciates that fabric coated with ZnO samples exhibited considerably high inhibition activity toward S. aureus (skin bacteria) which will be helpful in defending microbes if used in surgical cotton bandages

Application of ZnO nanorods doped with Cu for enhanced sonocatalytic removal of Cr(VI) from aqueous solutions

2019 ◽  
Vol 27 (3) ◽  
pp. 2691-2706 ◽  
Author(s):  
Kazem Godini ◽  
Mahsa Tahergorabi ◽  
Mohammad Naimi-Joubani ◽  
Mehdi Shirzad-Siboni ◽  
Jae-Kyu Yang
Keyword(s):  
Aqueous Solutions ◽  
Zno Nanorods

Dependence of radiation decay constant of laser produced copper plasma on focal position

2019 ◽  
Vol 26 (12) ◽  
pp. 122107 ◽  
Author(s):  
Rajendhar Junjuri ◽  
Sergey A. Rashkovskiy ◽  
Manoj Kumar Gundawar
Keyword(s):  
Decay Constant ◽  
Focal Position ◽  
Radiation Decay ◽  
Copper Plasma

Improvement of reliability of polymer nanocomposite based transparent memory device by oxygen vacancy rich ZnO nanorods

2016 ◽  
Vol 164 ◽  
pp. 53-58 ◽  
Author(s):  
Snigdha Bhattacharjee ◽  
Pranab Kumar Sarkar ◽  
Nandini Roy ◽  
Asim Roy
Keyword(s):  
Oxygen Vacancy ◽  
Zno Nanorods ◽  
Polymer Nanocomposite ◽  
Memory Device

Optical study of ZnO nanorods grown via vapour solid growth method for energy harvesting applications

2020 ◽  
Author(s):  
Vandana Nagal ◽  
Mohammad Salman Khan ◽  
Virendra Kumar ◽  
Navjyoti Boora ◽  
Zishan H. Khan ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Zno Nanorods ◽  
Optical Study ◽  
Growth Method

Enhancement of Triboactivity of Nanolamellar Graphitic-C3N4 by N-Doped ZnO Nanorods

2021 ◽  
Vol 60 (2) ◽  
pp. 864-874
Author(s):  
Alok K. Singh ◽  
Nivedita Shukla ◽  
Dinesh K. Verma ◽  
Kavita ◽  
Bharat Kumar ◽  
...  
Keyword(s):  
Zno Nanorods ◽  
Doped Zno
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