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Preparation of Bismuth Oxide Photocatalyst and Its Application in White-light LEDs
Joint Authors
Wu, Jerry
Chu, Yen-Chang
Lee, Gang-Juan
Chen, Chin-Yi
Ma, Shih-Hsin
Horng, T. L.
Chen, J. H.
Chen, K. H.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-27
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Bismuth oxide photocatalysts were synthesized and coated on the front surface of phosphor-converted white light-emitting diodes to produce a safe and environmentally benign lighting source.
Bismuth oxide photocatalyst powders were synthesized with a spray pyrolysis method at 500°C, 600°C, 700°C, and 800°C.
Using the absorption spectrum in the blue and UV regions of the bismuth oxide photocatalysts, the blue light and UV leakage problems of phosphor-converted white LEDs can be significantly reduced.
The experimental results showed that bismuth oxide photocatalyst synthesized at 700°C exhibited the most superior spectrum inhibiting ability.
The suppressed ratio reached 52.33% in the blue and UV regions from 360 to 420 nm.
Related colorimetric parameters and the photocatalyst decomposition ability of fabricated white-light LEDs were tested.
The CIE chromaticity coordinates (x,y) were (0.349, 0.393), and the correlated color temperature was 4991 K.
In addition, the coating layer of photocatalyst can act as an air purifier and diffuser to reduce glare.
A value of 66.2±0.60 ppmv of molecular formaldehyde gas can be decomposed in 120 mins.
American Psychological Association (APA)
Chu, Yen-Chang& Lee, Gang-Juan& Chen, Chin-Yi& Ma, Shih-Hsin& Wu, Jerry& Horng, T. L.…[et al.]. 2013. Preparation of Bismuth Oxide Photocatalyst and Its Application in White-light LEDs. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1031462
Modern Language Association (MLA)
Chu, Yen-Chang…[et al.]. Preparation of Bismuth Oxide Photocatalyst and Its Application in White-light LEDs. Journal of Nanomaterials No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-1031462
American Medical Association (AMA)
Chu, Yen-Chang& Lee, Gang-Juan& Chen, Chin-Yi& Ma, Shih-Hsin& Wu, Jerry& Horng, T. L.…[et al.]. Preparation of Bismuth Oxide Photocatalyst and Its Application in White-light LEDs. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1031462
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1031462