Ag nanoparticle/ZnO nanorods nanocomposites derived by a seed-mediated method and their photocatalytic properties

Yin, Xingtian; Que, Wenxiu; Duan, Fei; Shen, Fengyu; Guo, Qiushi

doi:10.1016/j.jallcom.2012.02.052

Cited by 90 publications

(48 citation statements)

References 34 publications

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“…oxidation state [28,29]. The core-level XPS spectrum of Ag consists of two peaks at 374.4 and 368.4 eV, corresponding to Ag 3d 3/2 and Ag 3d 5/2 of metallic Ag [31,32].…”

Section: Methodsmentioning

confidence: 99%

Visible-light-driven photocatalysis of heterostructure Ag/Bi2WO6 nanocomposites and their photocatalytic degradation of dye under visible light irradiation

et al. 2015

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Ag/Bi 2 WO 6 nanocomposites were successfully synthesized by a combination of hydrothermal method and ultrasonic vibration. The phases, vibration modes, constituents and morphologies were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. The visible-light-driven photocatalytic activitiy of 0-10 wt% Ag/Bi 2 WO 6 samples was studied by determining the photodegradation of rhodamine B under xenon lamp. In this research, 10 wt% Ag/Bi 2 WO 6 nanocomposites exhibit the highest efficiency and have the promising photocatalytic properties for waste water treatment.

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“…oxidation state [28,29]. The core-level XPS spectrum of Ag consists of two peaks at 374.4 and 368.4 eV, corresponding to Ag 3d 3/2 and Ag 3d 5/2 of metallic Ag [31,32].…”

Section: Methodsmentioning

confidence: 99%

Visible-light-driven photocatalysis of heterostructure Ag/Bi2WO6 nanocomposites and their photocatalytic degradation of dye under visible light irradiation

et al. 2015

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“…The calculated mean crystalline sizes of ZnO nanostructures synthesized by hydrothermal, precipitation and sonochemical method are 9.9, 9.3 and 8.6 nm, respectively. Figure 2 displays the representative XRD pattern of Ag decorated ZnO sample obtained by hydrothermal method (sample ZND:1), in which there are three peaks at 38.1°, 44.2°, and 64.4°corresponding to (111), (200) and (220) planes of the Ag nanoparticles (Yin et al 2012). It should also be noted that the peak of the (111) plane in intensity is comparatively intense than those of other two peaks, suggesting that the Ag NPs are mainly enclosed with the (111) planes.…”

Section: Characterizationmentioning

confidence: 99%

Synthesis, characterization and photocatalytic activity of PVP stabilized ZnO and modified ZnO nanostructures

et al. 2013

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In the present study, ZnO nanostructures have been successfully synthesized by hydrothermal, sonochemical and precipitation methods using polyvinyl pyrrolidone (PVP) as the capping agent. The ZnO nanoparticles were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), UV-Visible spectroscopy and photoluminescence (PL) techniques. The XRD results revealed the hexagonal wurtzite structure of the ZnO nanostructures for all the samples. Furthermore, the morphology of the ZnO particles was obtained from FESEM micrographs. Particles prepared by hydrothermal method were found to be rice grain shaped and that prepared by precipitation and sonochemical methods were spherical shaped. Sunlight driven photocatalytic degradation of methylene blue (MB) was studied for ZnO nanostructures synthesized by various methods. The ZnO nanostructures were further decorated with Ag nanoparticles to enhance its dye degradation efficiency. The Ag decorated ZnO nanoparticles exhibited a higher degradation rate as compared to pure ZnO nanoparticles which was independent of pH. Since this process of dye degradation relies on the degradation of dye due to oxidation by highly reactive hydroxyl radicals, there are many factors which affect the efficiency of this process. Hence a study was conducted on the effect of various parameters on ZnO viz amount of catalyst, reaction pH and concentration of MB dye.

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“…They found that undoped ZnO exhibited lower photocatalytic activity than the doped ZnO nanomaterials. This is because in pure ZnO the rate of electron-hole pair recombination is more than the doped ZnO nanomaterials [4,5]. Therefore, in order to enhance the photocatalytic activity of ZnO nanoparticles, noble metal incorporation, coupling with other semiconductors or by adding adsorbent to the ZnO have been carried out by various groups around the world [6,7].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the photocatalytic degradation of trypan blue by undoped and silver-doped zinc oxide nanoparticles

Ravishankar

Manjunatha

Ramakrishnappa

et al. 2014

Materials Science in Semiconductor Processing

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Ag nanoparticle/ZnO nanorods nanocomposites derived by a seed-mediated method and their photocatalytic properties

Cited by 90 publications

References 34 publications

Visible-light-driven photocatalysis of heterostructure Ag/Bi2WO6 nanocomposites and their photocatalytic degradation of dye under visible light irradiation

Visible-light-driven photocatalysis of heterostructure Ag/Bi2WO6 nanocomposites and their photocatalytic degradation of dye under visible light irradiation

Synthesis, characterization and photocatalytic activity of PVP stabilized ZnO and modified ZnO nanostructures

Comparison of the photocatalytic degradation of trypan blue by undoped and silver-doped zinc oxide nanoparticles

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