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中文摘要：
采用两步沉淀法将CdS沉积在磁性MCM41上，制备新型磁性MCM-4l／CdS复合材料。通过X射线衍射光谱（XRD）、高分辨透射电镜（HRTEM）、紫外-可见吸收光谱（UV—Vis）、振动样品磁强计（VSM）等对其进行表征。以亚甲基蓝（methyleneblue，简称MB）为模拟污染物，考察了磁性MCM41／CdS复合材料的可见光催化性能。结果表明，CdS能有效地沉积在磁性MCM-41上，与CdS相比，该复合材料对MB的光催化降解效率明显提高，且可通过外加磁场进行分离。
英文摘要：
Magnetic MCM-41/CdS composite was prepared via a two-step precipitation method through deposi- ting CdS on the magnetic MCM-41. XRD, HRTEM, UV-Vis absorption spectra and VSM were used to charac- terize the magnetic MCM-41/CdS composite. Methylene blue（MB） aqueous solution was used as a probe to evaluate the visible-light photocatalytic activity of magnetic MCM-41/CdS composite. The results showed that CdS was successfully deposited on the magnetic MCM-41, and magnetic MCM-41/CdS composite had higher visible-light photocatalytic activity than pure CdS. In addition, MCM-41/CdS composite could be easily separa- ted in an external magnetic field.
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