纳米CdS的制备及其在印染废水处理上的探索

Preparation of Nano CdS and Its Photocatalytic Degradation Performance Evaluation

通过逐层自组装技术和"两步法"相结合的方法在SBA-15孔道内制备了SBA-15-PDDA-PSS-CdS,将SBA-15-PDDA-PSS-CdS置于马弗炉中于煅烧,然后通入硫化氢制得SBA-15-CdS。本文通过研究体相CdS、SBA-15-CdS、SBA-15-PDDA-PSS-CdS对印染废水的光催化降解性能,来比较三者处理印染废水中有机质的能力。结果表明,与体相CdS和SBA-15-PDDA-PSS-CdS相比,SBA-15-CdS表现出更高的光催化效率。

SBA-15-PDDA-PSS-CdS was prepared by the method of layer by layer self-assembly techmque and ＂two step method＂.The SBA-15-PDDA-PSS-CdS was calcined in the muffle furnace, and then the sam- ple was vulcanized in H2S gas to prepared SBA-15-CdS. This paper by studying the light catalytic degrada- tion performance of bulk phase CdS, SBA-15-CdS, SBA-15-PDDA-PSS-CdS on degradation of methyl or- ange and to compare their capacity to deal with the organic matter in the printing and dyeing wastewater. The results showed that the SBA-15-CdS showed higher photocatalytic efficiency than that of the bulk phase CdS and SBA-15-PDDA-PSS-CdS.