TY - JOUR
T1 - Solid state synthesis of tin-doped ZnO at room temperature
T2 - Characterization and its enhanced gas sensing and photocatalytic properties
AU - Jia, Xiaohua
AU - Fan, Huiqing
AU - Afzaal, Mohammad
AU - Wu, Xiangyang
AU - O'brien, Paul
PY - 2011/10/15
Y1 - 2011/10/15
N2 - A room temperature solid-state reaction has been used to prepare crystalline tin-doped ZnO. Zinc nitrate hexahydrate, cetyltrimethyl ammonium bromide, stannic chloride pentahydrate and sodium hydroxide with proper ratios were ground together. As-synthesized samples were characterized by inductively coupled plasma analysis (ICP), scanning electron microscopy (SEM) and X-ray powder diffraction (XRD); The products were of different morphologies, well dispersed and exhibited good crystallinity, it is also found that the growth direction and morphology of ZnO depend on the amount of Sn doped, which is mainly caused by the difference in sizes between Zn and Sn atoms as well as the change of pH value. Moreover, gas sensing and photocatalytic properties of the obtained products were studied. The materials showed a high gas response to ethanol vapor, and the gas response can reach a maximum of R a/R g=124. In addition, tin-doped ZnO materials exhibited improved photocatalytic performance toward methyl orange (MO) solution under a current density of 0.03mgL -1 comparison with undoped ZnO.
AB - A room temperature solid-state reaction has been used to prepare crystalline tin-doped ZnO. Zinc nitrate hexahydrate, cetyltrimethyl ammonium bromide, stannic chloride pentahydrate and sodium hydroxide with proper ratios were ground together. As-synthesized samples were characterized by inductively coupled plasma analysis (ICP), scanning electron microscopy (SEM) and X-ray powder diffraction (XRD); The products were of different morphologies, well dispersed and exhibited good crystallinity, it is also found that the growth direction and morphology of ZnO depend on the amount of Sn doped, which is mainly caused by the difference in sizes between Zn and Sn atoms as well as the change of pH value. Moreover, gas sensing and photocatalytic properties of the obtained products were studied. The materials showed a high gas response to ethanol vapor, and the gas response can reach a maximum of R a/R g=124. In addition, tin-doped ZnO materials exhibited improved photocatalytic performance toward methyl orange (MO) solution under a current density of 0.03mgL -1 comparison with undoped ZnO.
KW - Gas response
KW - Low temperature solid state reaction
KW - Photocatalysis
KW - Tin-doped ZnO
UR - http://www.scopus.com/inward/record.url?scp=80053250728&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2011.07.049
DO - 10.1016/j.jhazmat.2011.07.049
M3 - 文章
C2 - 21813237
AN - SCOPUS:80053250728
SN - 0304-3894
VL - 193
SP - 194
EP - 199
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -