Highly Efficient Visible‐Light Plasmonic Photocatalyst Ag@AgBr

Wang, Peng; Huang, Baibiao; Zhang, Xiaoyang; Qin, Xiaoyan; Jin, Hao; Dai, Ying; Wang, Zeyan; Wei, Jiyong; Zhan, Jie; Wang, Shaoying; Wang, Junpeng; Whangbo, Myung‐Hwan

doi:10.1002/chem.200802327

Cited by 549 publications

(265 citation statements)

References 24 publications

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“…As known, the Ag 3 PO 4 nanospecies could only show apparent absorptions in UV region, and in visible region with a wavelength shorter than 550 nm [16,17]. Accompanied by the abovementioned information deduced from the EDX elemental analysis and the XRD spectra shown in Figures 2 and 3, the present result further confirms the existence of metallic Ag species in our samples, which could arouse surface plasmon resonance absorptions in the visible region [9,10,41]. At the same time, it can be seen from Figure 4 that the absorption spectrum of the Ag/Ag 3 PO 4 /GO nanocomposite displays a distinct absorption of GO nanosheets at ca.…”

Section: Synthesis and Characterization Of Ag/ag 3 Po 4 And Go Hybridsupporting

confidence: 87%

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Visible-light-driven Ag/Ag3PO4-based plasmonic photocatalysts: Enhanced photocatalytic performance by hybridization with graphene oxide

2012

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An efficient visible-light-driven plasmonic photocatalyst with regard to graphene oxide (GO) hybridized Ag/Ag 3 PO 4 (Ag/ Ag 3 PO 4 /GO) nanostructures has been facilely synthesized via a deposition-precipitation method. The synthesized nanostructures have been characterized by means of scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), UV-vis spectra, Fourier transform infrared spectra (FT-IR), X-ray photoelectron spectroscopy (XPS), and Raman spectra. It has been disclosed that compared with the bare Ag/Ag 3 PO 4 nanospecies, the GO hybridized nanostructures display enhanced photocatalytic activity for the photodegradation of methyl orange pollutant under visible-light irradiation. It is suggested that the reinforced charge transfer and the suppressed recombination of electron-hole pairs in Ag/Ag 3 PO 4 /GO, the smaller size of Ag/Ag 3 PO 4 nanospecies in Ag/Ag 3 PO 4 /GO, all of which are the consequences of the hybridization of GO, are responsible for the enhanced photocatalytic performance. The investigation might open up new opportunities to obtain highly efficient Ag 3 PO 4 -based visible-light-driven plasmonic photocatalyst for the photodegradation of organic pollutants.

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Section: Synthesis and Characterization Of Ag/ag 3 Po 4 And Go Hybridsupporting

confidence: 87%

“…Recently, in contrast to the traditional UV-light-driven photocatalysts, visible-light-energized photocatalysts in terms of AgX-based nanospecies have been demonstrated to be one of the most promising alternatives [9][10][11][12][13]. Thus far, numerous AgX-involved photocatalysts, such as Ag/AgCl, Ag/AgBr, etc., have been developed.…”

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confidence: 99%

Visible-light-driven Ag/Ag3PO4-based plasmonic photocatalysts: Enhanced photocatalytic performance by hybridization with graphene oxide

2012

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“…To address this issue, recently, much effort has been focused on the development of new series of heterostructure materials, named plasmonic photocatalysts, which can lessen the mentioned limitations (Xiang et al 2010;Chen et al 2008). According to the reports the presence of metallic Ag and Au nanoparticles on the surface of Ag-based photocatalysts can improve their stability for repeated using (Kakuta et al 1999;Wang et al 2008Wang et al , 2009. Inspired by these findings, many attempts have been performed to fabricate the highly efficient plasmonic silver-based photocatalysts (Kuai et al 2010;An et al 2010;Xu et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Visible-light photoactive Ag–AgBr/α-Ag3VO4 nanostructures prepared in a water-soluble ionic liquid for degradation of wastewater

Padervand

2016

Appl Nanosci

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Ag-AgBr/a-Ag 3 VO 4 photocatalysts, prepared by an ionic liquid-assisted precipitation method, were used as an efficient visible light-driven photocatalytic system for removal of wastewater and pathogenic bacteria from the aqueous medium. X-ray diffraction powder, diffuse reflectance spectroscopy, Fourier transform infrared, scanning electron microscopy, and nitrogen adsorptiondesorption isotherm (BET) analysis methods were used to characterize the nanostructures. Photodegradation mechanism was investigated and the results showed that the prepared samples were too efficient for the degradation of Acid Blue 92 (AB92) azo dye, and E. coli cells under visible light. The photogenerated electron-hole pairs reacted with the species in the solution and produced super active radicals such as OH Á , HO Á 2 , and O ÁÀ 2 which are responsible for the degradation of the environmental pollutions. TEM images were used to clarify the antibacterial activity of the products. Finally, as a practical application of the prepared photocatalysts, their ability evaluated for degradation of a real wastewater sample which was provided from the textile industries.

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“…Up to now, most of the silver oxide and silver halide have attracted much attention because of their strong visible light absorption performance [1][2][3][4][5][6][7]. Particularly, AgBr, which has a band gap of 2.6 eV, is well known as a photosensitive material and has been extensively applied to photographic films, which demonstrated excellent performance in degradation of dye pollutants and decomposition of water [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Magnetically Separable Fe3O4/AgBr Hybrid Materials: Highly Efficient Photocatalytic Activity and Good Stability

Cao¹,

Li²,

Li³

et al. 2016

Nano Online

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Magnetically separable Fe 3 O 4 /AgBr hybrid materials with highly efficient photocatalytic activity were prepared by the precipitation method. All of them exhibited much higher photocatalytic activity than the pure AgBr in photodegradation of methyl orange (MO) under visible light irradiation. When the loading amount of Fe 3 O 4 was 0.5 %, the hybrid materials displayed the highest photocatalytic activity, and the degradation yield of MO reached 85 % within 12 min. Silver halide often suffers serious photo-corrosion, while the stability of the Fe 3 O 4 /AgBr hybrid materials improved apparently than the pure AgBr. Furthermore, depositing Fe 3 O 4 onto the surface of AgBr could facilitate the electron transfer and thereby leading to the elevated photocatalytic activity. The morphology, phase structure, and optical properties of the composites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-visible diffuse reflectance spectra (UV-vis DRS), and photoluminescence (PL) techniques.

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Highly Efficient Visible‐Light Plasmonic Photocatalyst Ag@AgBr

Cited by 549 publications

References 24 publications

Visible-light-driven Ag/Ag3PO4-based plasmonic photocatalysts: Enhanced photocatalytic performance by hybridization with graphene oxide

Visible-light-driven Ag/Ag3PO4-based plasmonic photocatalysts: Enhanced photocatalytic performance by hybridization with graphene oxide

Visible-light photoactive Ag–AgBr/α-Ag3VO4 nanostructures prepared in a water-soluble ionic liquid for degradation of wastewater

Magnetically Separable Fe3O4/AgBr Hybrid Materials: Highly Efficient Photocatalytic Activity and Good Stability

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