CHARACTERIZATION AND PHOTOCATALYTIC ACTIVITY OF Zn2SnO4 NANOSTRUCTURES SYNTHESIZED VIA HYDROTHERMAL METHOD
Nanosized zinc stannate Zn2SnO4 (ZTO) was synthesized via a simple hydrothermal method using sodium hydroxide NaOH as a mineralizer. Hydrothermally treated at 150, 200, and 250℃ for 24 h and 48 h, the X-ray diffraction (XRD) pattern showed that highly crystalline ZTO nanostructures could be formed at 200 and 250℃. Transmission electron microscopy (TEM) images showed that ZTO nanocubes were formed at 250℃, and a sheet-like structure was found at 200℃. Raman spectra revealed that ZTO had a spinel structure and there were two Raman shift peaks at approximately 668 and 535 cm-1, which were similar to the peaks of ZTO nanowires. Furthermore, the photocatalytic activity of the ZTO samples was assessed utilizing methylene blue (MB) under ultraviolet irradiation, and the UV-Visible light absorption spectra was investigated to interpret the relationship between photocatalytic properties and light absorptivity. The sheet-like ZTO nanostructures exhibited better photocatalytic activity due to their excellent light absorption properties.
Zinc stannate (ZTO) hydrothermal method mineralizer nanoparticle photocatalyst
YU-SHIANG WU YUAN-HAUN LEE CHUN-LIANG FENG
Department of Mechanical Engineering, China Institute of Technology, Taipei 115, Taiwan Graduate Institute of Material Science and Engineering, National Taiwan University, Taipei 106, Taiw
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1086-1092
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）