Oxygen-vacancy-mediated photocatalytic degradation of tetracycline under weak visible-light irradiation over hierarchical Bi₂MoO₆@Bi₂O₃ core–shell fibers

Abstract

Novel oxygen-vacancy-rich hierarchical Bi2MoO6@Bi2O3 core–shell fibers were prepared by the in-situ growth of Bi2MoO6 nanosheets on Bi2O3 nanofibers via an electrospinning–calcination–solvothermal method. The in-situ growth contributed to the formation of...

Nanosheets loaded on tetrahedral surfaces form a Z-type Bi2MoO6/γ-Bi2O3 heterojunction to enhance the photocatalytic degradation activity of lomefloxacin and Rhodamine B

“…The solvothermal technique was employed to prepare a Z-type α-Bi 2 O 3 /Bi 2 MoO 6 heterojunction and this greatly improved the photocatalytic degradation efficiency of tetracycline. 35 An alkali treatment and air calcination were used to synthesize a Z-type β-Bi 2 O 3 /Bi 2 MoO 6 composite and it could remove 96.4% of phenol and had a 52 μmol g −1 hydrogen evolution rate under visible light irradiation. 36 An etching process and a deposition method were also utilized to prepare α-Bi 2 O 3 /Bi 2 MoO 6 37 and β-Bi 2 O 3 /Bi 2 MoO 6 38 heterostructures.…”

Ag/AgX (X = Cl, Br, or I) Nanocomposite Loaded on Ag3PO4 Tetrapods as a Photocatalyst for the Degradation of Contaminants

“…The E CB values of APO and AI can be evaluated as −0.19 and 0.78 eV, respectively. Generally, the flat band potential is more positive by 0.2 eV than the conduction band ( E CB ) . Therefore, the E CB values of AC and AB are estimated as −0.61 and −0.58 eV (vs NHE).…”

“…Generally, the flat band potential is more positive by 0.2 eV than the conduction band (E CB ). 51 Therefore, the E CB values of AC and AB are estimated as −0.61 and −0.58 eV (vs NHE). According to the calculation, the E VB values of bare AgCl and AgBr are estimated as 2.38 and 2.08 eV (vs NHE), which are both negative than H 2 O/ • OH (2.72 eV).…”