Nanocrystalline GaSbO4 with high surface area prepared via a facile hydrothermal method and its photocatalytic activity study

作者：Fu, Yanghe; Xue, Hun; Qin, Meng; Liu, Ping; Fu, Xianzhi; Li, Zhaohui^*

来源：Journal of Alloys and Compounds, 2012, 522: 144-148.

DOI：10.1016/j.jallcom.2012.01.141

• Nanocrystalline materials
• Hydrothermal
• GaSbO4
• Salicylic acid
• Acetone
• Photocatalytic

Nanocrystalline GaSbO4 with small particle size and large BET specific area was successfully prepared via a facile hydrothermal method from Sb2O5. The influence of the reaction pH on the formation of the final product was investigated. The obtained sample was characterized by X-ray diffraction (XRD), N-2-sorption BET surface area, UV-vis diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM). The photocatalytic activity for the degradations of salicylic acid and acetone over nanocrystalline GaSbO4 under UV irradiations was for the first time revealed. Based on the electron spin resonance (ESR) result, the reactive species involved in the photocatalytic reaction over nanocrytalline GaSbO4 are determined to be HO center dot and O-2(-center dot). The photocatalytic mechanism of GaSbO4 was proposed.

• 出版日期2012-5-5
• 单位福州大学