掺杂Co对K2Nb4O11光催化性能的影响

采用高温固相法合成了不同Co掺量的K2Nb4O11，通过XRD分析了所合成化合物的物相组成。光催化降解酸性红G的实验结果表明，Co掺量对K2NbO11光催化性能有较大的影响，确定了Co的最佳掺量；K2Nb4O11和CoNb2O6等氧化物的复合效应可能对光催化性能的改善起主要作用；掺Co的K2Nb4O11光催化降解酸性红G的反应动力学符合一级反应。

Influence of Co-doped on the Photocatalytic Activity of K2Nb4O11

Co-doped K2Nb4O11 powders were obtained by solid-phase reaction method.The structure of the obtained powders was investigated by X-ray diffraction.The photocatalytic degradation of acid red G on the catalyst showed that the contents of cobalt in the catalyst had important effect on the photocatalytic activity of the catalyst.The composite effect of K2Nb4O11 and CoNb2O6 etc may play a major role on improving the photocatalytic activity of the obtained catalyst. The photocatalytic reaction followed with the first order kinetics equation.