In-Situ Construction of 2D/2D CuCo2S4/Bi2WO6 contact heterojunction as a visible-light-driven fenton-like catalyst with highly efficient charge transfer for highly efficient degradation of tetracycline hydrochloride

Experimental and computational study of metal oxide nanoparticles for the photocatalytic degradation of organic pollutants: a review

“…Hsieh et al 237 synthesized the Bi 2 O 3 /CeO 2 composite via the hydrothermal method and compared the photocatalytic performance of pristine Bi 2 O 3 , CeO 2 , and Bi 2 O 3 /CeO 2 composite, in which the composite showed excellent catalytic performance under visible light illumination for the degradation of Orange II dye. The CuCo 2 S 4 /Bi 2 WO 6 heterojunction used for the degradation of tetracycline hydrochloride has also reported by Wang et al 245 Doping is also an effective and efficient strategy to reduce the large recombination rate of electron-hole pairs. Li et al 232 reported the La-doped Bi 2 O 3 prepared via the sol-gel method in which La 3+ doping creates oxygen vacancies on the surface of Bi 2 O 3 and also as an efficient scavenger to capture the photoinduced electrons.…”

Visible-LEDs-induced photocatalytic activity of Bi2WO6/BiVO4heterojunctions prepared by a novel and green methodology

“…The CB and VB obtained for BiV and BiW are quite compatible, forming an n–n heterojunction of well-aligned potential bands; the e − in BiV shifts to CB of BiW with less negative potential, adopting the type-II charge transfer mechanism. 43,44 Furthermore, the CB potential of n-type semiconductor is more negative than the E F of Ag ( E g = 0.69 eV); however, under irradiation, E F of Ag shifts to more negative potentials equilibrating the potentials through the formation of Schottky barriers in the metal-semiconductor contact region. Thus, the photogenerated e − accumulated on the Ag surface could rapidly react with the adsorbed O 2 on the surface to form activated ˙O 2 − preventing recombination.…”

Incorporation of a Z-scheme AgI/Ag6Si2O7 heterojunction to PET fabric for efficient and repeatable photocatalytic dye degradation

“…Electrons on the CB of Ag 6 Si 2 O 7 transfer to the VB of AgI, recombining with holes on the VB of AgI via a Z-scheme charge transfer mechanism at the heterojunction interface. 55,56 Hence, the photogenerated electrons and holes accumulated on the CB of AgI and VB of Ag 6 Si 2 O 7 preserve the high redox capability, which exhibits outstanding photocatalytic performance. In summary, due to the synergic interactions of the Z-scheme heterojunction, the effective separation of electron–hole pairs, the expansion of light adsorption range, and the highly accessible active sites, AgI/Ag 6 Si 2 O 7 /PET showed superior photocatalytic performance.…”