利用水滑石的优良结构特性,将具有光催化活性的Sn引入水滑石中得到光催化性能较高的含Sn水滑石材料,通过X射线粉末衍射(XRD)、傅里叶变换红外光谱(FTIR)、紫外可见漫反射图谱(UV-Vis DRS)和比表面积测量(BET)技术对样品的晶相、分子结构、光学性能和比表面积进行分析表征.以可见光催化降解对氯苯酚(4-CP)为模型,研究所合成样品的光催化活性.结果表明:在可见光照射下,水滑石骨架结构中含Sn的锌锡水滑石表现出更高的光催化活性,对4-CP的降解率达到92.4％(去除量34.6 rmg/g).并利用气相色谱(GC)和密度泛函理论(DFT)对4-CP的降解中间产物和反应路径进行了推测,发现光催化过程中的主要中间产物为对苯二酚和4-氯邻苯二酚.
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