Sonochemical Synthesis of Ag/AgCl Nanocubes and Their Efficient Visible‐Light‐Driven Photocatalytic Performance

Abstract

A novel one-step sonochemical approach to synthesize a plasmonic photocatalyst of AgCl nanocubes (ca. 115 nm in edge length) with a small amount of Ag metal species is presented. The nanoscale Ag/AgCl hybrid photocatalysts with cubic morphology are readily formed under ambient ultrasonic conditions and neither external heat treatment nor reducing agents are required. The size of the Ag/AgCl photocatalysts could be controlled by changing the concentrations of Ag(+) ions and polyvinylpyrrolidone molecules in precursor solutions. The compositions, microstructures, influencing factors, and possible growth mechanism of the Ag/AgCl hybrid nanocubes were systematically investigated. The Ag/AgCl photocatalysts show excellent photocatalytic performance for degradation of various dye molecules under visible light.

Environmentally friendly ultrosound synthesis and antibacterial activity of cellulose/Ag/AgCl hybrids

“…As a photosensitive material, AgCl/Ag hybrids exhibit high photocatalytic activities and good reusability for decomposing organic pollutants such as methyl orange, rhodamine B, and methyl blue under the irradiation of common fluorescent lamp or direct sunlight (Dong, Liang, & Gong, 2012). Until now, many efforts have been placed on the synthesis of the AgCl-based hybrids (Hu et al, 2009), such as the AgCl/Ag nanocubes with high visible-light-driven photocatalytic performance was successfully synthesized by a sonochemical process (Chen, Yoo, & Huang, 2012;Li et al, 2007). Silver is wellknown for its excellent antibacterial activities against bacteria and other microorganisms and has been utilized for the antibacterial applications for thousands of years (Hong, Park, Sul, Youk, & Kang, 2006;Maria et al, 2009;Pinto et al, 2009;Sharma, Yngard, & Lin, 2009).…”

Freeze-dried PVP–Ag+ precursors to novel AgBr/AgCl–Ag hybrid nanocrystals for visible-light-driven photodegradation of organic pollutants

“…The SPR effects of metal Ag NPs can be confirmed by Fig. 9 [10,49]. For the RhB degradation, the photodegradation rate ($0.87 min À1 ) of AgBr/AgCl-Ag 7.5 (1:2) photocatalyst is much higher than that of AgBr-Ag 7.5 ($0.45 min À1 ) or AgCl-Ag 7.5 ($0.35 min À1 ) photocatalyst ( Fig.…”

“…solution, finally forming AgBr/AgCl hybrid nanocrystals. play a critical role in the formation of AgBr/AgCl nanocrystals with small sizes (less than 100 nm), by preventing the abnormal growth of AgBr/AgCl particles [49].…”

TiO2 porous ceramic/Ag–AgCl composite for enhanced photocatalytic degradation of dyes under visible light irradiation

“…The existence of Ag metal is consistent with the XRD result. Figure 4d shows that two peaks at about 196.5 and 198.1 eV are ascribed to Cl 2p 3 and Cl 2p 1 of AgCl, respectively [32]. The XPS spectra further confirm that TiO 2 porous ceramic/Ag-AgCl composites consist of TiO 2 , AgCl and metallic Ag.…”