Effect of Ag doping on structural, optical, and photocatalytic properties of ZnO nanoparticles

Hosseini, Sayyed Mahdi; Sarsari, I. Abdolhosseini; Kameli, P.; Salamati, H.

doi:10.1016/j.jallcom.2015.03.136

Cited by 271 publications

(145 citation statements)

References 59 publications

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“…Energy gaps of Ag-doped ZnO [17] and Fedoped ZnO [18] were found to be decreased when compared to their un-doped structures. Ag-doped ZnO nanoparticles (Ag-doped ZnONPs) were studied, and effect of Ag dilute doping on the structural, optical, and photocatalytic properties of ZnO nanoparticles was investigated [19].…”

Section: Introductionmentioning

confidence: 90%

DFT investigation on molecular structures of metal and nonmetal-doped ZnO sodalite-like cage and their electronic properties

2015

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The optimized structures of the ZnO sodalite-like cages (ZnOSLs) doped by single metal atoms (Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Pd, Ag, Pt and Au) and single nonmetal atoms (B, C, N, Al, Si, P, Ga and Ge) were obtained using DFT/B3LYP method. The energetics and thermodynamic properties for doping processes of single metal atom to Zn V of the Zn vacancy defect ZnOSL surface, (ZnOSL ? Zn V ) and nonmetal atom to O V of the O vacancy defect ZnOSL surface, (ZnOSL ? O V ) were obtained. The binding abilities of transition metal dopants to Zn V of [ZnOSL ? Zn V ] and nonmetal dopants to O V of [ZnOSL ? O V ] surfaces are in orders: Crrespectively. Energy gaps and NBO partial charges for low-spin and high-spin states of metal and nonmetal-doped ZnOSLs and their analyses are reported. Graphical Abstract Keywords Low-spin Á High-spin state Á ZnO sodalite-like cage Á Metal doping Á Nonmetal doping Á DFT Á NBO Electronic supplementary material The online version of this article (

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Section: Introductionmentioning

confidence: 90%

DFT investigation on molecular structures of metal and nonmetal-doped ZnO sodalite-like cage and their electronic properties

2015

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“…Similar red-shift has been observed in the dominant PL peak for other oxide spectra, for example, for SnO 2 on doping with Mn, 23 for ZnO on doping with Ag. 24 All these additions have been reported to being accompanied with alloy formation. The red-shift observed in oxide-alloys can also be attributed to resonant energy transfer phenomenon, due to the similarity in work functions of SnO 2 and C. Similar result has also been reported by Ghosh, et.al for ZnO nanoparticles.…”

Section: Analysis Of Pl Propertiesmentioning

confidence: 98%

“…Similar blue-shift in the highest intensity PL peak has been reported for other core-shell nanoparticles such as ZnS:Mn/ZnO, HgTe/CdTe core-shell nanoparticles. 24,[26][27][28] An intensity ratio 'I' defined as the ratio of the intensity of the peak attributed to the bandedge emission to the intensity of the peak attributed to O-vacancies is quite important. While 'I' corresponds to a value of 0.35 for SnO 2 nanoparticles, a value of 0.2 is observed for SnO nanoparticles.…”

Section: Analysis Of Pl Propertiesmentioning

confidence: 99%

Structural and photoluminescence properties of tin oxide and tin oxide: C core–shell and alloy nanoparticles synthesised using gas phase technique

et al. 2016

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In the present study, we report a controlled growth of tin oxide and tin oxide: carbon nanoparticles by an integrated method comprising of the gas phase agglomeration, electrical mobility based size selection, and in–flight sintering steps. The effect of in-flight sintering temperature and variation in growth environment (N2, H2 and O2) during nanoparticle formation, morphology and composition has been investigated by carrying out High Resolution Transmission Electron microscopy and X-Ray diffraction studies. The results highlight the novelty of the present technique to grow alloy and core-shell nanoparticles in which the stoichiometery (x) of SnOx and the mode of incorporation of carbon into the tin oxide lattice (alloy or core-shell structure), along with well-defined size can be controlled independently. Detailed Photoluminescence (PL) studies of well sintered monocrystalline SnO, SnOx and SnO2 nanoparticles along with SnOx:C and SnO2:C alloy and C@SnO core-shell nanoparticle has been carried out. The shift in the position and nature of PL peaks due to band edge, Sn interstitials and oxygen vacancy defect level energy states has been understood as a function of stoichiometery and nanoparticle structure (alloy and core-shell). These results suggest the possibility of tailoring the position of these levels by controlling the size, composition and alloying which is potentially important for gas sensing, photoconductivity and photo-electrochemical applications.

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“…Figure 7(b) shows the multiplex spectrum of oxygen peaks. The peaks at binding energies of 539 eV can be assigned to O 1s [33]. In addition, Figure 7(c) shows the multiplex spectrum of sulfur peaks.…”

Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 99%

Preparation of ZnO/CdS/BC Photocatalyst Hybrid Fiber and Research of Its Photocatalytic Properties

Dai

Cheng

Qingcheng

et al. 2015

Journal of Nanotechnology

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An environment-friendly biomaterial bacterial cellulose (BC) is introduced to substitute general organic polymers to assist the preparation of ZnO/CdS/BC photocatalyst hybrid nanofiber through coprecipitation method under the low-temperature condition. The XRD, XPS, and SEM results show that high load of ZnO/CdS/BC ternary hybrid fiber can be produced. TGA curves scan shows that ZnO/CdS/BC hybrid fiber has better thermal properties than bacterial cellulose. The UV-Vis spectra of the ZnO/CdS/BC hybrid nanofiber (0, 10, 20, and 50 wt%, resp.) show that photocatalytic activities of ZnO/CdS/BC are influenced by the added amount of CdS. The degradation curve of methyl shows that ZnO/CdS/BC nanohybrid fibers exhibit excellent photocatalytic efficiency.

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Effect of Ag doping on structural, optical, and photocatalytic properties of ZnO nanoparticles

Cited by 271 publications

References 59 publications

DFT investigation on molecular structures of metal and nonmetal-doped ZnO sodalite-like cage and their electronic properties

DFT investigation on molecular structures of metal and nonmetal-doped ZnO sodalite-like cage and their electronic properties

Structural and photoluminescence properties of tin oxide and tin oxide: C core–shell and alloy nanoparticles synthesised using gas phase technique

Preparation of ZnO/CdS/BC Photocatalyst Hybrid Fiber and Research of Its Photocatalytic Properties

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