Synthesis and photocatalytic properties of magnetically separable and recyclable p–n heterojunction CoFe₂O₄/Bi₁₂O₁₇Cl₂ photocatalyst

Abstract

A series of CoFe2O4/Bi12O17Cl2 (CFO/Bi12O17Cl2) nanocomposites have been prepared by chemical precipitation method. The result of X-ray diffraction showed that CFO/Bi12O17Cl2 composites had high crystallinity. It was found that CoFe2O4...

Flower‐Like Ag6Si2O7/Bi12O17Cl2 p‐n Heterojunctions: Enhanced Photocatalytic Activity and Mechanistic Insight**

“…[31] When Ag alone are determined to be 3.06 and 2.28 eV vs. NHE, respectively. According to the empirical formula E CB = E VB À E g , [32] combined with the results of E g in DRS, the E CB for Ag [9] CoFe 2 O 4 / Bi 12 O 17 Cl 2 -3, [11] 20-Co 3 O 4 / Bi 12 O 17 Cl 2 , [33] Bi 12 O 17 Cl 2 /g-C 3 N 4 [34] and other types of photocatalysts such as ZnO/CdS, 3 g-C 3 N 4 / BaBiO 3 . [35] In order to facilitate comparison, the degradation processes of RhB over Ag 6 Si 2 O 7 , Bi 12 O 17 Cl 2 and Ag 6 Si 2 O 7 / Bi 12 O 17 Cl 2 composites were further analyzed through first order kinetic equation (Figure 7B).…”

“…[7] However, the photogenerated carrier separation efficiency of pure Bi 12 O 17 Cl 2 photocatalyst is poor, and the photocatalytic performance is limited, so it is urgent to construct Bi 12 O 17 Cl 2 matrix composites to further improve their photocatalytic activity. [8] Compared with a Bi 12 O 17 Cl 2 component, Bi 12 O 17 Cl 2 matrix composites such as BiOI@Bi 12 O 17 Cl 2 , [9] Ag 2 O/Bi 12 O 17 Cl 2 , [10] CoFe 2 O 4 /Bi 12 O 17 Cl 2 [11] showed higher photocatalytic performance.…”