Comparative study on photocatalytic performances of crystalline alpha- and beta-Bi2O3 nanoparticles under visible light

Jalalah, Mohammed; Faisal, M.; Bouzid, Houcine; Park, Jea-Gun; Al-Sayari, S. A.; Ismail, Adel A.

doi:10.1016/j.jiec.2015.05.020

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Comparative study on photocatalytic performances of crystalline alpha- and beta-Bi2O3 nanoparticles under visible light

Jalalah, Mohammed;
Faisal, M.;
Bouzid, Houcine;
Park, Jea-Gun;
Al-Sayari, S. A.;
외 1명

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144

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163

초록

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.

키워드

alpha- & beta-Bi2O3; Photocatalyst; Photodegradation; Organic contamination; BISMUTH OXIDE; THIN-FILMS; HYDROGEN-PRODUCTION; TIO2 PHOTOCATALYST; TEMPERATURE; BI2O3; DEGRADATION; CALCINATION; FABRICATION; NANOWIRES

제목: Comparative study on photocatalytic performances of crystalline alpha- and beta-Bi2O3 nanoparticles under visible light

저자: Jalalah, Mohammed; Faisal, M.; Bouzid, Houcine; Park, Jea-Gun; Al-Sayari, S. A.; Ismail, Adel A.

DOI: 10.1016/j.jiec.2015.05.020

발행일: 2015-10

유형: Article

저널명: Journal of Industrial and Engineering Chemistry

권: 30

페이지: 183 ~ 189