采用原位光催化氧化聚合法制备氯氧化铋/聚吡咯（BiOCl/PPy）复合光催化剂，利用BiOCl在光照下产生的光生空穴来氧化聚合吡咯单体（Py）生成聚吡咯（PPy），不需要另加氧化剂，因此更加环保和经济。由于Py的光催化氧化聚合反应发生在BiOCl表面的氧化位点，使BiOCl与PPy这2种材料之间形成紧密牢固的异质结界面，从而能更有效提高BiOCl/PPy复合材料的光生空穴和电子分离效率及光催化效率。结果表明，改性后的光催化剂（BiOCl/PPy）光照50 min后可降解99.4%的罗丹明B （RhB），其降解速率是纯BiOCl的2.3倍。该实验设计方法简单、安全、环保、经济，制得的BiOCl/PPy异质结复合材料能高效光催化降解染料类污染物。

Bismuth oxychloride/polypyrrole (BiOCl/PPy) composite photocatalyst is prepared via in situ photocatalytic oxidation polymerization.Polypyrrole is prepared through the oxidation of pyrrole monomer by photogenic holes generated by BiOCl under light, which needs not additional oxidant, representing more environmentally friendly and economical.A tight heterojunction interface is formed between BiOCl and PPy because the photocatalytic oxidation polymerization of pyrrole monomer occurs at the oxidation site on the surface of BiOCl, which can effectively improve the photogenic holes, electronic separation rate and photocatalytic efficiency of BiOCl/PPy composite.It is shown that the modified photocatalyst (BiOCl/PPy) can degrade Rhodamine B with a concentration of 99.4% after 50 min of light exposure, which delivers a degradation rate that is 2.3 times that pure BiOCl does.This experimental design method is simple, safe, environmentally friendly and economical, by which the BiOCl/PPy heterojunction composite prepared can efficiently degrade dye type pollutants.

鲍家泽(1985-),男,硕士,讲师,研究方向为环境污染控制,baojiaze@126.com。