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·1744· 精细化工 FINE CHEMICALS 第 35 卷

2.4.3 光催化循环实验 的光吸收区域，使其可响应可见光直接降解污染物。
加入 0.1 g 尿素所制备的 Bi 2 O 2 CO 3 在可见光和 并将深入研究光生载流子与空穴的分离、复合与迁
紫外光下对 RhB 降解的循环性能见图 12。由图 12 移对 Bi 2 O 2 CO 3 降解 RhB 效率的影响。
可知，Bi 2 O 2 CO 3 在可见光和紫外光下进行 5 次光催
参考文献:
化实验后光催化活性几乎不变。此外，Bi 2 O 2 CO 3 在
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污染物降解效果较差。今后将致力于扩展 Bi 2 O 2 CO 3