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Near-infrared responsive magnetic photocatalyst based on NaYF4:Yb3+/Er3+@Cu2O@MoS2@Fe3O4 for the efficient degradation of organic contaminants.
- Source :
- New Journal of Chemistry; 5/7/2024, Vol. 48 Issue 17, p7688-7698, 11p
- Publication Year :
- 2024
-
Abstract
- In the realm of photocatalysis, effectively utilizing solar energy, especially the near-infrared (NIR) spectrum, presents substantial challenges. To tackle this issue, a novel composite of NaYF<subscript>4</subscript>:Yb<superscript>3+</superscript>/Er<superscript>3+</superscript>@Cu<subscript>2</subscript>O@MoS<subscript>2</subscript>@Fe<subscript>3</subscript>O<subscript>4</subscript> (denoted as NYE@Cu<subscript>2</subscript>O@MoS<subscript>2</subscript>@Fe<subscript>3</subscript>O<subscript>4</subscript>) was ingeniously fabricated and assessed for the photodegradation of organic contaminants. By harnessing the distinct properties of upconversion materials, narrow bandgap semiconductors, and magnetic substances, the NYE@Cu<subscript>2</subscript>O@MoS<subscript>2</subscript>@Fe<subscript>3</subscript>O<subscript>4</subscript> catalyst possesses a photodegradation rate of 92% for the rhodamine B dye under NIR light radiation, which is superior to NYE@Cu<subscript>2</subscript>O (50%) and NYE@Cu<subscript>2</subscript>O@MoS<subscript>2</subscript> (85%). The enhanced performance in the near-infrared photocatalysis of NYE@Cu<subscript>2</subscript>O@MoS<subscript>2</subscript>@Fe<subscript>3</subscript>O<subscript>4</subscript> is mainly attributed to the synergistic effect of various components, which promotes an increase in photo-induced carrier generation and facilitates their efficient transfer and energy utilization under NIR irradiation. This study provides a possible route for the near-infrared photocatalytic degradation of pollutants in areas with limited light or even dark conditions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 48
- Issue :
- 17
- Database :
- Complementary Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 176911873
- Full Text :
- https://doi.org/10.1039/d4nj00415a