Preparation and characterization of visible-light-driven plasmonic photocatalyst Ag/AgCl/TiO2 nanocomposite thin films

Novel Synthesis of Plasmonic Ag/AgCl@TiO2 Continues Fibers with Enhanced Broadband Photocatalytic Performance

“…After heat treatment, the Brunauer-Emmett-Teller (BET) surface area of TF increases from 16.0 of precursor fibers (PF) to 27.9 m 2 g −1 (TF), due to the removal of organic matters and the formation of porous structure. With Ag/AgCl particles deposited on TF, the surface area of S-CTF increases to 30.6 m 2 g −1 , which is due to its rough surface [32], as shown in Figure 1. N 2 absorption and desorption isotherms of TF and S-CTF are shown in Figure 2a.…”

“…The degradation of X-3B by pure-TF can be attributed to the photosensitization of dye, and the degradation elevation of TF can be attributed to the existence of Ti 3+ and the optical absorption of visible light. CTF shows high photoactivity due to the reduction of AgCl and the formation Ag 0 as the photoreaction progressed [32]. Because of the strong SPR of Ag 0 , S-CPF and S-CTF exhibit much higher degradation efficiencies than TF and CTF.…”

“…With the efficient interaction of Ag 0 , AgCl and TF, the plasmon-excited electrons are injected into the conduction band (CB) of TF [20,45] easily, and subsequently produce •O 2 − with O 2 . Meanwhile, the photo-excited holes are transferred to the surface of AgCl, X-3B molecules [20,32] and the value band (VB) of TF. The efficient separation of carriers among Ag, AgCl and TF is confirmed by PL spectra.…”

Regulations of silver halide nanostructure and composites on photocatalysis

“…Various metallic semiconductor (such as TiO 2 , ZnO, BiVO 4 ) and metal-free nitrogen-doped graphene semiconductors have been considered as preferred substances to composite with AgX, shown as Table 2. As photosensitive materials, AgX and Ag/AgX (especially X = Cl and Br) are regarded as suitable semiconductor selections to modify photocatalytic composition system, which can produce efficient coupling photocatalysts with higher activity and stability compared with the single component [270][271][272][273][274][275][276]. Among them, the hybridization between AgX and other metallic semiconductor would significantly improve the light absorption efficiency and facilitate the photoinduced charge carrier separation with similar transmission routes [277][278][279][280][281][282][283][284][285][286].…”

Influence of Ag/TiO2 nanoparticle on the surface hydrophilicity and visible-light response activity of polyvinylidene fluoride membrane

“…However, the outstanding performances of such PVDF membrane were only observed under the UV irradiation. This experimental condition was very harsh for its practical application because of about 5% UV occupation of natural sunlight [17]. Therefore its limited UV-driven activity seriously hampered its practical application and weakened its total photocatalytic efficiency under the natural sunlight illumination.…”