铁、锌、铁酸锌掺杂对纳米级二氧化钛光催化降解罗丹明B活性的影响

EFFECT OF Fe^(3+),Zn^(2+)AND ZnFe_2O_4 DOPING ON THE PHOTOCATALYTIC ACTIVITIES OF TiO_2 NANOPARTICLES FOR DEGRADATION OF RHODAMINE B

通过溶胶 凝胶法合成了掺杂Fe3+ 、Zn2 + 、ZnFe2 O4的纳米级TiO2 ,并进行了XRD、TEM表征 ,对罗丹明B的光催化实验表明 ,ZnFe2 O4的掺杂能明显提高TiO2 的光催化活性 ,而Zn2 + 的掺杂对TiO2 的光催化活性影响不大 ,Fe3+ 的掺杂则使TiO2 的光催化活性降低。

Fe 3+,Zn 2+and ZnFe_2O_4-doped TiO_2 nanoparticles were prepared from butyl titanate (TiO(Bu)_4) using a sol-gel method and characterized by means of X-ray diffraction (XRD) and transmission electron microscopy (TEM).The results showed that ZnFe_2O_4 doping enhanced the photocatalytic activity of TiO_2 for rhodamine B degradation,Zn 2+doping had little influence on the photocatalytic activity of TiO_2 while Fe 3+doping greatly decreased the photocatalytic activity of TiO_2.