Back to Search
Start Over
Al cluster oxide modified a hematite/P3HT ternary Z-scheme photocatalyst with excellent photocatalytic performance: A discussion of the mechanism
- Source :
- Journal of Hazardous Materials. 391:122252
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- The Z-scheme photocatalyst is valuable for use in polluted water purification, and there is a need to develop a cheap and efficient photocatalyst. This study presents a new type of Z-scheme photocatalytic material composed of hematite and P3HT, also, the Al cluster oxides were first used as a charge transfer mediator to construct Z-scheme photocatalysis system. In addition, by analyzing the electron rearrangement phenomenon exhibited by the XPS spectrum and the experimental results of the in-situ illumination XPS, it is found that Al cluster is beneficial to the electron multi-step charge transfer process and Al cluster favors the construction of Z-scheme structure between hematite and P3HT. This Poly-3-hexylthiophene (P3HT)/Al cluster oxide/hematite ternary photocatalyst exhibited an excellent degradation effect on bisphenol A and tetracycline. This study demonstrates the feasibility of using the Al cluster as a charge mediator in the Z-scheme, providing new Z-scheme catalyst construction idea which is beneficial to the popularization and use of Z-scheme system in practical applications, and providing a new material for water pollution purification.
- Subjects :
- 021110 strategic, defence & security studies
Environmental Engineering
Materials science
Health, Toxicology and Mutagenesis
0211 other engineering and technologies
Oxide
Portable water purification
02 engineering and technology
010501 environmental sciences
Hematite
01 natural sciences
Pollution
Catalysis
chemistry.chemical_compound
X-ray photoelectron spectroscopy
Chemical engineering
chemistry
visual_art
Cluster (physics)
visual_art.visual_art_medium
Photocatalysis
Environmental Chemistry
Ternary operation
Waste Management and Disposal
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 03043894
- Volume :
- 391
- Database :
- OpenAIRE
- Journal :
- Journal of Hazardous Materials
- Accession number :
- edsair.doi.dedup.....fa2e80067ddf8bf1beb171c57d510dda