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Visible-light photocatalytic activity of Ag@MIL-125(Ti) microspheres.
- Source :
- Applied Organometallic Chemistry; Sep2015, Vol. 29 Issue 9, p618-623, 6p
- Publication Year :
- 2015
-
Abstract
- Ag nanoparticle (NP)-decorated MIL-125(Ti) microspheres (Ag@MIL-125(Ti)) were firstly fabricated via a facile hydrothermal and following photo-reduction method. The photocatalysts were characterized using X-ray diffraction, scanning and transmission electron microscopies, and UV-visible spectroscopy. The characterization results indicated that Ag NPs were dispersed on the surface of MIL-125(Ti) microspheres, and the Ag NPs had a uniform diameter of about 40 nm. The composites exhibited excellent visible-light absorption, due to the modification with the Ag NPs. The photocatalytic activity for the visible-light-promoted degradation of Rhodamine B was improved through the optimization of the amount of Ag loaded as a co-catalyst, this amount being determined as 3 wt%. Additionally, studies performed using radical scavengers indicated that O<subscript>2</subscript><superscript>−</superscript> and e<superscript>−</superscript> served as the main reactive species. The catalyst can be reused at least five times without significant loss of its . Furthermore, a photocatalytic mechanism for degradation of organics over Ag@MIL-125(Ti) is also proposed. Copyright © 2015 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]
- Subjects :
- VISIBLE spectra
MICROSPHERES
NANOPARTICLES
SPECTRUM analysis
RHODAMINE B
Subjects
Details
- Language :
- English
- ISSN :
- 02682605
- Volume :
- 29
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Applied Organometallic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 109016926
- Full Text :
- https://doi.org/10.1002/aoc.3341