本文采用剥离-重堆积法制备了磷钨酸柱撑锌铝水滑石复合材料,利用XRD、IR、N2吸附-脱附曲线及UV-Vis DRS等手段对复合材料进行表征,并以亚甲基蓝(MB)有机染料作为模型污染物,评价复合材料在MB降解中的光催化性能。实验结果表明:ZnAl–PW11O39复合材料的层间通道为1.38 nm,比表面积为23 m2/g,在紫外光下降解MB的光催化活性是前驱体ZnAl-LDH的2.4倍。提高的光催化活性归功于主客体之间形成紧密有效的异质结结构和增大的比表面积。 In this paper, the composite of phosphotungstic acid pillared Zn-Al hydrotalcite was prepared by the stripping-reclamation method. The composites were characterized by XRD, IR, N2 adsorption-desorption curves and UV-Vis DRS. ) Organic dye as a model pollutant to evaluate the photocatalytic performance of the composite in MB degradation. The experimental results show that the interlayer channel of ZnAl-PW11O39 composites is 1.38 nm and the specific surface area is 23 m2 / g. The photocatalytic activity of MB degraded under UV light is 2.4 times that of the precursor ZnAl-LDH. The enhanced photocatalytic activity is attributed to the formation of a close and effective heterojunction structure and increased specific surface area between host and guest.