摘要
采用水热法在不加与添加聚乙烯吡咯烷酮(PVP)的条件下分别制备了硫化锌/石墨烯(ZnS/RGO)和ZnS/RGO-PVP复合材料。通过X射线衍射、Fourier变换红外光谱、扫描电子显微镜等手段对样品的组成与形貌进行了分析表征。以亚甲基蓝为目标降解物在紫外光下研究了各样品的光催化活性。结果表明:ZnS复合RGO后明显提高了ZnS的光催化性能;加入PVP后提高了ZnS在RGO表面的附着量并抑制了ZnS颗粒的团聚,进一步提高了ZnS/RGO的光催化性能。
ZnS/RGO and ZnS/RGO-PVP composites were successfully synthesized by a hydrothermal method using ZnS and graphene oxide （GO） or PVP as raw materials. The resulted samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy and UV-Vis absorption spectroscopy. UV light was used as the light source to evaluate the photocatalytic activity of the products for the degradation of methyl blue. The results show that photocatalytic activity of ZnS is enhanced in the presence of RGO and PVP.
出处
《青岛科技大学学报（自然科学版）》
CAS
北大核心
2014年第2期119-123,共5页
Journal of Qingdao University of Science and Technology:Natural Science Edition
基金
国家自然科学基金项目(20977055)
山东省自然科学基金项目(2009ZRB019WB)
青岛市应用基础研究重点计划项目(11-2-4-3-(16)-jch)
地质过程与矿产资源国家重点实验室开放课题项目(GPMR201102)
关键词
石墨烯
ZNS
复合材料
光催化
reduced graphene oxide（RGO）
ZnS
composites
photocatalysis
