Effect of nitrogen doping on the photo-catalytic properties of nitrogen doped ZnO tetrapods

Qiu, Yongfu; Fan, Hongsong; Tan, Guiping; Yang, Minlin; Yang, Xiaohu; Yang, Shihe

doi:10.1016/j.matlet.2014.05.156

Cited by 20 publications

(17 citation statements)

References 16 publications

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“…4d, the N 1s peak fitted by Gaussian deconvolution indicates composition of two different peaks located around 405.5 and 407.1 eV attributed to N-Zn and N-H, respectively [39]. The obtained results are in good agreement with the literatures [40,41].…”

Section: Xps Spectrasupporting

confidence: 89%

In-situ sonosynthesis of nano N-doped ZnO on wool producing fabric with photo and bio activities, cell viability and enhanced mechanical properties

Behzadnia

Montazer

Rad

2015

Journal of Photochemistry and Photobiology B: Biology

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Section: Xps Spectrasupporting

confidence: 89%

In-situ sonosynthesis of nano N-doped ZnO on wool producing fabric with photo and bio activities, cell viability and enhanced mechanical properties

Behzadnia

Montazer

Rad

2015

Journal of Photochemistry and Photobiology B: Biology

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“…The lattice parameters and the c/a ratios are shown on Table 2, as well as the unit cell volume, which is also plotted on Figure 4d. The calculated c/a ratio of about 1.603 which is correlated with the 1.633 published elsewhere [23]. All ZnO:N samples exhibit bigger crystal parameters as compared to pure ZnO.…”

Section: Samplesupporting

confidence: 88%

“…As in the previous case, the photogenerated superoxide •O2 -and hydroxyl •OH radials would be generated and react with the MO. The energetic position of the energy bands to ensure rapid transfer of photo-induced charge carriers in nitrogen doped and silver-decorated ZnO films has been discussed before [22,23,[26][27][28]. Figure 8 shows a scheme that resumes the different processes that takes place during the photocatalytic degradation of MO under UV or visible light illumination.…”

Section: Samplementioning

confidence: 99%

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ZnO (Ag-N) Nanorods Films Optimized for Photocatalytic Water Purification

et al. 2019

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ZnO nanorods (NRs) films, nitrogen-doped (ZnO:N), and ZnO doped with nitrogen and decorated with silver nanostructures (ZnO:N-Ag) NRs films were vertically supported on undoped and N doped ZnO seed layers by a wet chemical method. The obtained films were characterized structurally by X-ray diffraction. Morphological and elemental analysis was performed by scanning electron microscopy, including an energy dispersive X-ray spectroscopy facility and their optical properties by Ultraviolet-Visible Spectroscopy. Analysis performed in the NRs films showed that the nitrogen content in the seed layer strongly affected their structure and morphology. The mean diameter of ZnO NRs ranged from 70 to 190 nm. As the nitrogen content in the seed layer increased, the mean diameter of ZnO:N NRs increased from 132 to 250 nm and the diameter dispersion decreased. This diameter increase occurs simultaneously with the incorporation of nitrogen into the ZnO crystal lattice and the increase in the volume of the unit cell, calculated using the X-ray diffraction patterns and confirmed by a slight shift in the XRD angle. The diffractograms indicated that the NRs have a hexagonal wurtzite structure, with preferential growth direction along the c axis. The SEM images confirmed the presence of metallic silver in the form of nanoparticles dispersed on the NRs films. Finally, the degradation of methyl orange (MO) in an aqueous solution was studied by UV-vis irradiation of NRs films contained in the bulk of aqueous MO solutions. We found a significant enhancement of the photocatalytic degradation efficiency, with ZnO:N-Ag NRs film being more efficient than ZnO:N NRs film, and the latter better than the ZnO NRs film.

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“…Also, its instability in acid conditions, rapid bulk use due to aggregation, and low surface area of the bulk form are other factors which decrease the photocatalytic efficiency. Numerous efforts have been put forth to overcome these drawbacks and to improve the photocatalytic activity of pure ZnO, which includes the preparation of nanoparticles, combination with other semiconductors [7,8], and doping with a heteroatom [9,10]. Among these methods, doping is the most considerable method.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and visible light photocatalytic activity of nitrogen-doped zinc oxide nanospheres

Lavand

Malghe

2015

Journal of Asian Ceramic Societies

166

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a b s t r a c tPure and Nitrogen (N)-doped ZnO nanospheres were successfully prepared using microemulsion method. X-ray diffraction (XRD) study indicates formation of nanosized N-doped ZnO with wurtzite phase. Nitrogen incorporation into oxygen site of ZnO causes lattice compression and small peak shift toward lower 2Â value. Raman and Fourier transform infrared (FTIR) measurements revealed the presence of N in ZnO lattice. Scanning electron microscopy (FESEM) study revealed spherical morphology of pure and N-doped ZnO samples. UV-visible spectra show that N-doping significantly enhanced the light absorption capacity of ZnO in the visible region. N-doped ZnO exhibits higher photocatalytic activity compared with that of commercial and pure ZnO nanoparticles. As prepared nanosized N-doped ZnO photocatalyst is highly stable and reusable.

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Effect of nitrogen doping on the photo-catalytic properties of nitrogen doped ZnO tetrapods

Cited by 20 publications

References 16 publications

In-situ sonosynthesis of nano N-doped ZnO on wool producing fabric with photo and bio activities, cell viability and enhanced mechanical properties

In-situ sonosynthesis of nano N-doped ZnO on wool producing fabric with photo and bio activities, cell viability and enhanced mechanical properties

ZnO (Ag-N) Nanorods Films Optimized for Photocatalytic Water Purification

Synthesis, characterization and visible light photocatalytic activity of nitrogen-doped zinc oxide nanospheres

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