The promoted organic pollutant and visible-light-driven photocatalytic degradation efficiency of MIL-101(Fe)/Bi2WO6 Z-scheme heterojunction assisting and mechanism

• Published in: Colloids and surfaces. A, Physicochemical and engineering aspects Vol. 656; p. 130413
• Main Authors: Wu, Guangyu, Liu, Qi, Ma, Li, Tian, Liting, Ran, Jie, Pan, Yuwei, Han, Jiangang, Xing, Weinan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05.01.2023
• Subjects: Heterojunction structure; MIL-101(Fe)/Bi2WO6; Photocatalytic degradation; Visible light; MIL-101(Fe)/Bi2WO6; Heterojunction structure; Photocatalytic degradation; Visible light
• ISSN: 0927-7757; 1873-4359
• DOI: 10.1016/j.colsurfa.2022.130413

Photocatalytic technology has been widely studied because of using solar energy to degrade pollutants with high efficiency. However, rapid recombination of the photogenerated charges results in low efficiency and instability. In this study, a novel MIL-101(Fe)/Bi2WO6 heterojunction with high efficient for degradation of organic pollutants from wastewater under visible-light irradiation was synthesized. A 1O2 dominant Fenton assisted photocatalytic system was constructed by superimposing the photo-fenton effect of MIL-101(Fe) itself. The photocatalytic degradation efficiency of MIL-101(Fe)/Bi2WO6-3% heterojunction under visible light irradiation is 10.0 times that of Bi2WO6. Specifically, the designed MIL-101(Fe)/Bi2WO6 photocatalyst showed excellent organic degradation performance under visible light. The results of this work not only supply a novel angle to the design and develop Z-scheme heterojunction photocatalysts but also identify its vital application value in the field of environmental remediation. [Display omitted] •MIL-101(Fe)/Bi2WO6 Z-scheme heterojunction was delicately designed.•Efficiently photodegradation of RhB and TC was achieved over MIL-101(Fe)/Bi2WO6.•The possible degradation pathways and degradation mechanism were proposed.•MIL-101(Fe)/Bi2WO6 possessed good reusability and stability.