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Nonylphenol photodegradation by novel ternary MIL-100(Fe)/ZnFe2O4/PCN composite under visible light irradiation via double charge transfer process
- Source :
- Journal of Environmental Sciences. 111:93-103
- Publication Year :
- 2022
- Publisher :
- Elsevier BV, 2022.
-
Abstract
- Nonylphenol (NP) residues, as a typical endocrine disrupting chemical (EDC), frequently exist in sewage, surface water, groundwater and even drinking water, which poses a serious threat to human health due to its bioaccumulation. In order to remove NP, a series of MIL-100(Fe)/ZnFe2O4/flake-like porous carbon nitride (MIL/ZC) was synthesized through in-situ synthesis at room temperature. High performance of ternary MIL/ZC is used to degrade NP under visible light irradiation. The results show that 30MIL/ZC2 (20 wt.% ZnFe2O4) ternary composite had the best photocatalytic activity (99.84%) when the dosage was 30 mg. Further mechanism analysis shows that the excellent photocatalytic activity of 30MIL/ZC2 could be ascribed to the double charge transfer process between flake-like porous carbon nitride (PCN) and other catalysts in the ternary heterojunction, and the separation of photogenerated electron-hole pairs was more effective. In addition, the 30MIL/ZC2 also showed high stability after five cycles of the photodegradation reaction. Furthermore, the active substance (•O2−) was considered to be the main active substance in the NP degradation process. Based on the research results, the possible photocatalytic reaction mechanism of 30MIL/ZC2 ternary composite was proposed and discussed in detail.
- Subjects :
- Environmental Engineering
Materials science
Composite number
Heterojunction
02 engineering and technology
General Medicine
Nitride
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Nonylphenol
Catalysis
chemistry.chemical_compound
Chemical engineering
chemistry
Photocatalysis
Environmental Chemistry
0210 nano-technology
Photodegradation
Ternary operation
General Environmental Science
Subjects
Details
- ISSN :
- 10010742
- Volume :
- 111
- Database :
- OpenAIRE
- Journal :
- Journal of Environmental Sciences
- Accession number :
- edsair.doi...........48ccd2133a92837a4ca930a24fe4e4fc