Photoabsorption and photocatalysis of SrSnO3 produced by a cyclic microwave radiation

• Main Authors: Junploy P., Thongtem S., Thongtem T.
• Format: Article
• Language: English
• Published: 2014
• Online Access: http://www.scopus.com/inward/record.url?eid=2-s2.0-84874615564&partnerID=40&md5=b2e36b265399161d929a52752dc3707e; http://cmuir.cmu.ac.th/handle/6653943832/7025
• Institution: Chiang Mai University

Rod-like hexagonal SrSn(OH)6 precursors were produced by a cyclic microwave radiation (CMR) of a template-free solution containing SnCl2·2H2O and (CH3CO2) 2Sr at the pH 12.2, adjusted by NaOH solution. The rod-like hexagonal SrSn(OH)6 precursors were calcined at 500 °C, 700 °C and 900 °C for 3 h following the thermogravimetric analysis. In the end, the perovskite orthorhombic SrSnO3 products in the shape of rods with 530 cm-1 Sn-O stretching mode, characterized by X-ray diffraction, electron microscopy and Fourier transform infrared spectroscopy, were produced. UV-visible analysis of the best crystalline rod-like SrSnO3 indicated an exponential decreasing of photonic absorption attenuated through the orthorhombic SrSnO3 solid with 3.91 eV direct energy gap, including 85% decolorization efficiency under UV light for 320 min. © 2013 Elsevier Ltd. All rights reserved.