Visible light photocatalytic activity enhancement and mechanism of AgBr/Ag3PO4 hybrids for degradation of methyl orange

Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu2O Core–Shell Heteronanowires

“…The decrease in the refractive index causes the shift of SPR band to shorter wavelength. 52 The SPR peak in the product collected at 24 h shifted to 386 nm due to the disappearance of In order to demonstrate the applicability of our simple method, core-shell It was reported that in the photodegradation of organic pollutants, reactive species such as ·O 2 -, h + and ·OH played as bridge role of photocatalysts under the light irradiation, [57][58][59][60] and they could vary with the different photocatalysts. 61,62 To investigate the photocatalytic mechanism and to understand the better performance of 1D Ag@Cu 2 O core-shell phtocatalysts, the effect of scavengers on the degradation of MO was examined to clarify the contribution of different reactive species during photocatalysis study.…”

“…61,62 To investigate the photocatalytic mechanism and to understand the better performance of 1D Ag@Cu 2 O core-shell phtocatalysts, the effect of scavengers on the degradation of MO was examined to clarify the contribution of different reactive species during photocatalysis study. We used p-benzoquinone (PBQ) as ·O 2 -scavengers, [57][58][59][60][63][64][65] triethanolamine (TEOA) as h + scavengers, 61,62,65 and isopropanol (IPA) as ·OH scavengers. 63,66 These scavengers were added into the MO solution together with the 1D Ag@Cu 2 O core-shell hetero-nanowires before irradiation.…”

Photocatalytic Degradation of Selective Herbicides Using Ag/AgCl/Ag3PO4 Plasmonic Nanocatalyst under Visible Irradiation

“…However, the studies about Ag 3 PO 4 showed that it always exhibited low structural stability and photocorrosion characteristic because the photogenerated electrons combined with interstitial silver ions, which restrained it from being used widely. Bi et al [12,13] prepared the heterogenous photocatalysts of AgCl/Ag 3 PO 4 by ion-exchange method to enhance the photocatalytic activity and increase the stability, which were proved through the photocatalytic degradation of dyes. The research by Huang et al [6,14] indicated that the Ag 0 species on the surface of a series of silver salts can enhance the electron-hole separation and improve the photocatalytic activity due to the localized surface plasmon resonance, such as Ag/AgCl, Ag/AgBr, Ag/AgI, Ag/Ag 3 PO 4 et al…”

Characterization and photostability of Cu2O–Ag–AgBr/Al2O3 for the degradation of toxic pollutants with visible-light irradiation

“…Semiconductor-metal nanocomposites have been widely employed in photocatalysis and considered as a promising alternative to solve many environmental and energy issues [1][2][3][4]. In particularly, nanoparticles (NPs) of noble metals can strongly absorb visible light because of surface plasmon resonance, which greatly enhances the overall photocatalytic efficiency at the interface between the metal and the semiconductor [5][6][7][8][9][10][11].…”

“…Besides, it is known that the composite of two semiconductive oxides may enhance the opto-electrical properties due to the difference in band gap structures. The matching band potentials facilitated the fast transfer and separation of the photoinduced carriers [1]. p-type cuprous oxide (Cu 2 O) not only make good use of visible light as photocatalyst directly, but also can be used as sensitized semiconductor for a solar cell.…”