Photocatalytic activities of AgBr/Y-zeolite in water under visible light irradiation

Visible-light photocatalytic activity and mechanism of novel AgBr/BiOBr prepared by deposition-precipitation

“…The used catalyst became a little darker than the fresh catalyst, which indicates that metallic silver was formed in the used AgBr/BiOBr. This phenomenon has also been observed in previous studies [34,38,39]. The XRD pattern of used AgBr/BiOBr (inset of Figure 8) shows that the crystal structures of AgBr and BiOBr are well maintained and no silver peaks are found at 38.16° and 44.07°.…”

“…AgBr is an important semiconductor widely used as a photosensitive material in photography and as a photocatalyst for the degradation of pollutants or destruction of bacteria [24,[30][31][32][33][34][35][36][37][38][39][40][41][42][43][44]. Compared with BiOBr [18], AgBr [45] has a narrower band gap and higher visible-light absorption.…”

Recent advances in silver-based heterogeneous catalysts for green chemistry processes

“…Considering the SPR effect of noble metal nanoparticles, some highly efficient visible light plasmonic photocatalysts have been further fabricated. For example, Zang et al[87] prepared a photocatalyst zeolite, which is highly efficient under sunlight. Some other visible light photocatalysts such as Ag@AgCl and Ag@AgBr have been developed recently[88][89][90][91][92].…”

Adsorption and visible light-driven photocatalytic degradation of Rhodamine B in aqueous solutions by Ag@AgBr/SBA-15

“…ZnO [23], γ-Al 2 O 3 [24], TiO 2 [25], rGO [26], zeolite [27] and SBA-15 [28] all have been used as supports to enhance the stability of the Ag/Ag halides.…”

“…Since Ag@AgBr was supported on SBA-15 with good dispersion, which could inhibit the poor photocatalytic activity resulting from Ag@AgBr aggregation. Otherwise, high surface area of SBA-15 was favorable to adsorbing RhB and intermediates, which made the active sites and the organics closer, promoting the photocatalytic degradation of RhB in the presence of 50Ag@AgBr/SBA-15 and visible light[27].3.6 Reusability of 50Ag@AgBr/SBA-15Fig.S7 exhibits the recycling performance of the photocatalyst 50Ag@AgBr/SBA-15 recovered by two procedures. One procedure was as follows: the used solid 50Ag@AgBr/SBA-15 was collected by filtration with 0.22 μm membrane and dried in oven at 80 ºC overnight; the dried solid was then added into the deionized water with stirring under visible light to continue the photocatalytic degradation of RhB remaining on the surface of the photocatalyst.…”