Synthesis of hollow SnO2 microspheres and its enhanced photocatalytic properties

• Published in: Materials letters 2014-12, Vol.137, p.241-244
• Main Authors: Wang, Yanzhong, Su, Tingting, Chen, Huiyu, Liu, Wei, Dong, Yingge, Hu, Shengliang
• Format: Article
• Language: English
• Subjects: Carbon; Citric acid; Glucose; Hollow microspheres; Microspheres; Microstructure; Photocatalysis; Photocatalyst; Porous materials; SnO2; Surface area; Tin dioxide; Tin oxides
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2014.09.028

Hollow SnO2 microspheres were successfully synthesized by a hydrothermal method. C/SnO2 composite microspheres were hydrothermally prepared using the glucose as a carbon source, and citric acid was employed as the chelating agent in order to stabilize Sn2+ ions in aqueous solution. Then the C/SnO2 composite microspheres were annealed at 550°C in static air to obtain hollow SnO2 microspheres with diameters of 1–2μm. Such novel hollow SnO2 microstructures possess high surface area (95m2/g), thus enhancing their photocatalytic property. The RhB solution degrades 80% with irradiation of 60min. Hollow SnO2 microspheres were successfully synthesized by a hydrothermal method. Such novel hollow SnO2 microstructures exhibit an enhanced photocatalytic property for RhB solution that degrades 80% with irradiation of 60min. [Display omitted] •C/SnO2 composite microspheres were hydrothermally prepared.•Hollow SnO2 microspheres with diameter of about 1–2μm was obtained.•Hollow SnO2 microspheres exhibit an enhanced photocatalytic activity.