Visible light photocatalytic activities of plasmonic Ag/AgBr particles synthesized by a double jet method

Wang, Desong; Duan, Yandong; Luo, Qingzhi; Li, Xueyan; Bao, Leilei

doi:10.1016/j.desal.2010.11.042

Cited by 110 publications

(42 citation statements)

References 36 publications

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“…The photocatalytic degradation rate decreased with increasing pH in alkaline solution. The observed result was attributed to the change of RhB adsorption on the Ag/AgI surface with increasing pH of the reaction system, similar to the observed result for Ag@AgBr [38].…”

Section: Effect Of Operational Variables and Estimation Of Model Parasupporting

confidence: 90%

Microwave-assisted synthesis of a superfine Ag/AgI photocatalyst with high activity and excellent durability

Liang

Liu

Wu³

et al. 2015

J Mater Sci

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A novel plasmonic photocatalyst Ag/AgI was synthesized via a microwave-assisted irradiation synthesis in nonaqueous media. The sizes and shapes of the nanoparticles were strongly influenced by the microwave irradiation time and the concentration of polyvinylpyrrolidone (PVP) surfactant used in the reaction system. The Ag/AgI nanoparticles prepared using 0.3 mmol PVP at 140°C under microwave irradiation for 5 min possessed diameters of *100 nm. The photocatalytic reaction parameters, such as Ag/AgI catalyst loading amount, initial concentration of Rhodamine B (RhB) dye, solution pH, and photocatalysis temperature were investigated. The photocatalytic degradation of RhB followed a pseudo-first-order kinetic model, and the as-prepared plasmonic Ag/AgI photocatalysts exhibited strong photocatalytic activity and good durability for the degradation of RhB under visible light. Quenching experiments indicating that Á OH in solution, positive holes (h ? ), and adsorbed Á OH were the main reactive species in the system.

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Section: Effect Of Operational Variables and Estimation Of Model Parasupporting

confidence: 90%

Microwave-assisted synthesis of a superfine Ag/AgI photocatalyst with high activity and excellent durability

Liang

Liu

Wu³

et al. 2015

J Mater Sci

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show abstract

“…The Ag 3d5/2 peak is further divided into two different peaks at 367.1 and 366.2 eV and the Ag 3d3/2 is also divided into two different peaks at 373.2 and 372.3 eV. According to the report [30] by Zhang et al, the peaks at 373.2 and 367.1 eV were attributed to metallic silver, and these two peaks with a spin energy separation of 6.1 eV further indicated that the Ag 0 existed in the Ag@AgCl/Bi 2 WO 6 rectorite composite [31]. The Ag 3d peaks which appeared at the binding energies of 372.3 and 366.2 eV belonged to the Ag + , indicating the formation of AgCl on the as-prepared photocatalyst [32].…”

Section: Catalyst Characterizationmentioning

confidence: 92%

Oil-in-water self-assembled Ag@AgCl QDs sensitized Bi2WO6: Enhanced photocatalytic degradation under visible light irradiation

Liang

Lin

Liu

et al. 2015

Applied Catalysis B: Environmental

249

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“…In recent years, as a kind of highly visible-light response photocatalyst, Ag-based photocatalysts have been proved to be promisingly efficient photocatalysts and well-known photosensitive materials, such as Ag 2 O [1], Ag 3 PO 4 [2,3], AgX (X = Cl, Br, I) [4][5][6][7][8][9], and Ag 3 VO 4 [10]. Among the Ag-based photocatalysts, Ag 2 CO 3 was reported to possess high-efficient photodegradation ability for Rhodamine B (RhB), Methyl Orange (MO), and Methylene Blue (MB) dyes [11,12].…”

Section: Introductionmentioning

confidence: 99%

Enhanced visible-light photocatalytic activity and stability over g-C3N4/Ag2CO3 composites

et al. 2014

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A facile direct growth method was developed for the fabrication of Ag 2 CO 3 nanoparticles on the surface of g-C 3 N 4 at room temperature. The as-prepared g-C 3 N 4 / Ag 2 CO 3 composites were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy with energy dispersion X-ray spectroscopy, UV-vis diffuse reflectance spectroscopy, and photoluminescence spectroscopy. The photocatalytic activities were evaluated by degrading Rhodamine B dye. The results indicated that Ag 2 CO 3 nanoparticles with the size of 5-10 nm were finely distributed on the surface of g-C 3 N 4 sheet, leading to the enhancement of the photocatalytic activity. And when the mass ratio of g-C 3 N 4 to Ag 2 CO 3 was 1:4, the as-prepared composites exhibited the optimum photocatalytic activity, which was approximately 8 and 3 times higher than pure g-C 3 N 4 and Ag 2 CO 3 , respectively. The enhanced photocatalytic performance could be attributed to the synergetic effects between g-C 3 N 4 and Ag 2 CO 3 , including the smaller particle size of Ag 2 CO 3 and high charge separation efficiency of the photogenerated electron-hole pair. More attractively, the stability of Ag 2 CO 3 was improved due to its highly dispersion on g-C 3 N 4 sheet. In addition, based on the experimental results, the Z-scheme mechanism for the photodegradation over g-C 3 N 4 /Ag 2 CO 3 composites was proposed.

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Visible light photocatalytic activities of plasmonic Ag/AgBr particles synthesized by a double jet method

Cited by 110 publications

References 36 publications

Microwave-assisted synthesis of a superfine Ag/AgI photocatalyst with high activity and excellent durability

Microwave-assisted synthesis of a superfine Ag/AgI photocatalyst with high activity and excellent durability

Oil-in-water self-assembled Ag@AgCl QDs sensitized Bi2WO6: Enhanced photocatalytic degradation under visible light irradiation

Enhanced visible-light photocatalytic activity and stability over g-C3N4/Ag2CO3 composites

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