Facile fabrication of g-C3N4/MIL-53(Al) composite with enhanced photocatalytic activities under visible-light irradiation.

Authors :: Guo, Di
Wen, Rongying
Liu, Minmin
Guo, Hongxu
Chen, Jianhua
Weng, Wen
Source :: Applied Organometallic Chemistry; Oct2015, Vol. 29 Issue 10, p690-697, 8p
Publication Year :: 2015
Abstract: A novel visible-light-driven g-C<subscript>3</subscript>N<subscript>4</subscript>/MIL-53(Al) composite photocatalyst was successfully prepared using a facile stirring method at room temperature. The g-C<subscript>3</subscript>N<subscript>4</subscript>/MIL-53(Al) composites were characterized and their effects on the photocatalytic activities for rhodamine B degradation were investigated. The g-C<subscript>3</subscript>N<subscript>4</subscript>(20 wt%)/MIL-53(Al) photocatalyst displayed optimal photocatalytic degradation efficiency, which was about five times higher than the photocatalytic activity of pure g-C<subscript>3</subscript>N<subscript>4</subscript>. The improved photocatalytic performance of the g-C<subscript>3</subscript>N<subscript>4</subscript>/MIL-53(Al) photocatalyst was predominantly attributed to the efficient separation of electron-hole pairs and the low charge-transfer resistance. g-C<subscript>3</subscript>N<subscript>4</subscript>/MIL-53(Al) also exhibited excellent stability and reusability. A proposed mechanism for the enhanced photocatalytic activity is also discussed based on the experimental results. Copyright © 2015 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Subjects :: VISIBLE spectra
IRRADIATION
SPECTRUM analysis
ELECTROMAGNETIC waves
RHODAMINE B

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