Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/8402
Title: Room temperature synthesis and highly enhanced visible light photocatalytic activity of porous BiOI/BiOCl composites nanoplates microflowers
Authors: Dong, F
Sun, Y
Fu, M
Wu, Z
Lee, SC 
Keywords: BiOI/BiOCl composites
Nitric oxide
Photocatalytic activity
Template free
Visible light
Issue Date: 2012
Publisher: Elsevier
Source: Journal of hazardous materials, 2012, v. 219-220, p. 26-34 How to cite?
Journal: Journal of hazardous materials 
Abstract: This research represents a highly enhanced visible light photocatalytic removal of 450ppb level of nitric oxide (NO) in air by utilizing flower-like hierarchical porous BiOI/BiOCl composites synthesized by a room temperature template free method for the first time. The facile synthesis method avoids high temperature treatment, use of organic precursors and production of undesirable organic byproducts during synthesis process. The result indicated that the as-prepared BiOI/BiOCl composites samples were solid solution and were self-assembled hierarchically with single-crystal nanoplates. The aggregation of the self-assembled nanoplates resulted in the formation of 3D hierarchical porous architecture containing tri-model mesopores. The coupling to BiOI with BiOCl led to down-lowered valence band (VB) and up-lifted conduction band (CB) in contrast to BiOI, making the composites suitable for visible light excitation. The BiOI/BiOCl composites samples exhibited highly enhanced visible light photocatalytic activity for removal of NO in air due to the large surface areas and pore volume, hierarchical structure and modified band structure, exceeding that of P25, BiOI, C-doped TiO 2 and Bi 2WO 6. This research results could provide a cost-effective approach for the synthesis of porous hierarchical materials and enhancement of photocatalyst performance for environmental and energetic applications owing to its low cost and easy scaling up.
URI: http://hdl.handle.net/10397/8402
ISSN: 0304-3894
EISSN: 1873-3336
DOI: 10.1016/j.jhazmat.2012.03.015
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

168
Last Week
0
Last month
9
Citations as of Aug 20, 2017

WEB OF SCIENCETM
Citations

165
Last Week
0
Last month
7
Citations as of Aug 20, 2017

Page view(s)

31
Last Week
6
Last month
Checked on Aug 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.