题目：SnS2的制备及光催化还原Cr(Ⅵ)性能研究目录1引言....................................................................................................................11.1环境污染现状.........................................................................................11.2光催化还原Cr........................................................................................31.3SnS2的结构.............................................................................................41.4研究SnS2还原Cr...................................................................................42实验部分............................................................................................................52.1实验所需试剂及所需仪器.....................................................................52.2SnS2的制备.............................................................................................52.3样品表征.................................................................................................62.3.1X-射线衍射（XRD）.......................................................................62.3.2电子显微镜（SEM）........................................................................62.3.3紫外可见漫反射（UV-visDRS）....................................................62.3.4电化学测试分析................................................................................62.3.5SnS2的光催化性能检测....................................................................73结果与讨论........................................................................................................73.1SnS2的X-射线衍射（XRD）物相分析...............................................73.2SnS2的电子显微镜（SEM）形貌和微结构分析.................................83.3SnS2的紫外可见漫反射（UV-visDRS）分析.....................................93.4SnS2的电化学测试分析.......................................................................103.5SnS2的催化性能...................................................................................114结论..................................................................................................................12致谢....................................................................................................................12参考文献.............................................................................................................13SnS2的制备及光催化还原Cr()Ⅵ性能研究摘要:以SnCl4、CH4N2S为原料，用水热反应法进行。在搅拌及加热180℃水热反应下得到SnS2,分别采用X-射线衍射(XRD)、透射电子显微镜(TEM)、光降解与紫外-见漫反射光谱(UV-vis)、DRS等实验方式表现出内部结构和光学性质；以K2Cr2O7为模型污染物，并考察了催化剂、Cr(VI)水溶液的产品的光催化性质的作用。结论指出：（1）SnS2不只具备较好的可见光催化活性，而且具有良好的光催化稳定性。（2）进行光催化后，Cr（Ⅵ）被还原为Cr（Ⅲ）关键词:二硫化锡；光催化；稳定性；催化还原CrPreparationofSnS2andPhotocatalyticReductionofCr(VI)Abstract:UsingSnCl4,CH4N2Sasrawmaterialswithhydrothermalreactionmethod.SnS2wasobtainedunderstirringandheatingat180°Chydrothermalreaction.TheproductswerecharacterizedbyX-raydiffraction(XRD),transmissionelectronmicroscopy(TEM),photodegradationandUV-vis,DRSdiffusereflectance(UV-vis).ThestructureandopticalpropertiesofSnS2wereinvestigated.AndK2Cr2O7wereusedasmodelcontaminants,andtheeffectsofthephotoelectricp...
