High photodegradation efficiency of Rhodamine B catalyzed by bismuth silicate nanoparticles

• Published in: Catalysis communications Vol. 39; pp. 65 - 69
• Main Authors: Duan, Jiao, Liu, Yan, Pan, Xiuhong, Zhang, Yubo, Yu, Jianding, Nakajim, Kiyotaka, Taniguchi, Hiroki
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05.09.2013
• Subjects: Interactional role; Photocatalytic activity; Simulated sunlight irradiation; Photocatalytic activity; Interactional role; Simulated sunlight irradiation
• ISSN: 1566-7367; 1873-3905
• DOI: 10.1016/j.catcom.2013.04.029

Bismuth silicate Bi2SiO5 (BSO) nanoparticles were synthesized through a hydrothermal reaction followed by heat treatment. Kinds of characteristic methods were employed to study the phase, morphology and photophysical properties of BSO. The as-prepared BSO exhibited high photocatalytic activity and good photodegradation repeatability in the decomposition of Rhodamine B (RhB) dyes under simulated sunlight irradiation. The experimental results by using different scavengers demonstrate that the photogenerated h+ and e− radicals play an interactional role in the degradation of RhB dyes. BSO nanocrystals could be a promising photocatalysis in water purification industry. [Display omitted] •Single crystalline Bi2SiO5 nanoparticles were synthesized by a hydrothermal reaction followed by heat treatment.•The as-prepared Bi2SiO5 nanoparticles exhibited high efficiency in the photodegradation of Rhodamine B.•Photogenerated electrons and holes are activated from O 2p to Bi 6p during photoactivation process.•Photogenerated electrons and holes have played an interactional role in the photodegradation of RhB dyes.