SnO2/聚氯乙烯复合材料的制备及光催化性能研究

摘要

以二氯化亚锡和聚氯乙烯(PVC)为主要原料,通过光化学合成的方法,在低功率紫外灯辐照下制备了复合光催化剂的前驱体,经热处理后得到了含有共轭聚合物结构的SnO2/聚氯乙烯复合光催化剂材料,并用XRD和UV-Vis等对复合材料进行了表征.光催化降解亚甲基蓝的实验表明,复合材料在可见光辐照下能有效地降解亚甲基蓝,复合材料的催化活性明显优于纯SnO2和PVC直接热处理产物.%Using SnCl2 and polyvinyl chloride(PVC) as the raw materials, nanometer SnO2-conjugated polymer composite photocatalyst was prepared by mixing and calcinating the precursor mixture of PVC and the SnO2 precarsor from SnCl2 photochemical reaction. The as-synthesized samples were characterized by XRD and UV-Vis. The composite has much higher photocatalytic activity than pure SnO2 and the product of pure PVC by direct calcination in the photodegradation of methlene blue( MB) under the visible light from xenon lamp.