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Comparative study on photocatalytic performances of crystalline alpha- and beta-Bi2O3 nanoparticles under visible light
- Authors
- Jalalah, Mohammed; Faisal, M.; Bouzid, Houcine; Park, Jea-Gun; Al-Sayari, S. A.; Ismail, Adel A.
- Issue Date
- Oct-2015
- Publisher
- 한국공업화학회
- Keywords
- alpha- & beta-Bi2O3; Photocatalyst; Photodegradation; Organic contamination
- Citation
- Journal of Industrial and Engineering Chemistry, v.30, pp 183 - 189
- Pages
- 7
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Journal of Industrial and Engineering Chemistry
- Volume
- 30
- Start Page
- 183
- End Page
- 189
- ISSN
- 1226-086X
1876-794X
- Abstract
- alpha- and beta-Bi2O3 nanoparticles were synthesized in the presence of either urea or polyethylene glycol. The XRD, TEM, and Raman analysis indicated that alpha-(monoclinic)Bi2O3 nanoparticles were obtained using either' sol-gel or hydrothermal method in the presence of urea; however beta-(tetragonal) phase of Bi2O3 was formed using hydrothermal method in the presence of polyethylene glycol. The beta-Bi2O3 nanoparticles exhibited higher photocatalytic activity than alpha-Bi2O3. MB was completely photodegraded after 6 h of visible light illumination using beta-Bi2O3 photocatalyst whereas only 30% was photodegraded using alpha-Bi2O3. The photodegradation rate of beta-Bi2O3 was 5.7 times greater than that alpha-Bi2O3 nanoparticles.
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Collections - 서울 공과대학 > 서울 융합전자공학부 > 1. Journal Articles
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