NDLI: In situ ionic-liquid-assisted synthesis of plasmonic photocatalyst Ag/AgBr/g-C3N4 with enhanced visible-light photocatalytic activity

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In situ ionic-liquid-assisted synthesis of plasmonic photocatalyst Ag/AgBr/g-C3N4 with enhanced visible-light photocatalytic activity

Content Provider	Semantic Scholar
Author	Chen, Daimei Wang, Zhihong Joanne Yang, Gaolin Ren, Tiezhen Yuan Ding, Hao
Copyright Year	2015
Abstract	Abstract A series of visible-light-induced Ag/AgBr/g-C3N4 nanocomposites were fabricated vis a one-pot and simple approach. The ionic liquid 1-octyl-3-methylimidazolium bromide ([Omim]Br) was introduced into the synthesis system, and served not only as the Br source but also as a dispersant. The Ag/AgBr nanoparticles were found to be highly dispersed on the sheets of g-C3N4. The Ag/AgBr/g-C3N4 nanocomposites showed much higher visible-light-driven photocatalytic activity than individual g-C3N4 and Ag/AgBr for organic compound degradation. The optimal Ag/AgBr content with the highest photocatalytic activity is determined to be 40%, which is almost 2.4 and 1.9 times higher than that those of individual g-C3N4 and Ag/AgBr for the degradation of methylene blue (MB), and 18.8 and 1.6 folds for the degradation of phenol. The enhancement in photocatalytic activity should be assigned to the extended light-absorption range and efficient charge separation as a result of the surface plasmon resonance effect of Ag0 and the well-matched overlapping band-structure between Ag/AgBr and g-C3N4. Finally, the possible mechanism for the charge separation and transformation among Ag, AgBr and g-C3N4 ternary system under the visible light is proposed.
Starting Page	41
Ending Page	48
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1016/j.cattod.2015.03.031
Volume Number	258
Alternate Webpage(s)	http://www.cugb.edu.cn/uploadCms/file/20600/papers_upload/20161014173948024816.pdf
Alternate Webpage(s)	https://doi.org/10.1016/j.cattod.2015.03.031
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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