摘要
采用电沉积-溶剂热两步法制备了Cu基Cd S纳米线分级结构薄膜。用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、能谱分析仪(EDS)、紫外-可见漫反射光谱(UV-vis-DRS)等对薄膜进行表征,探讨了Cd基Cd S纳米线的成核生长机制。结果显示:Cu基Cd微米片阵列与其表面生长的针状Cd S纳米线,构筑形成了多孔道的分级结构薄膜,改变溶剂热的时间、温度及硫源浓度,Cd S纳米线尺寸呈规律性变化。Cu基Cd S薄膜具有较好的光催化活性和稳定性,经5次光催化循环,罗丹明B(Rh B)降解率下降不明显。
Cu based Cd S thin films were prepared via two-step method involving electrodeposition process followed by solvothermal method.The as-prepared films were characterized by scanning electron microscopy(SEM),X-ray powder diffraction(XRD),energy dispersive spectrometer(EDS)and UV-vis diffuse reflectance spectroscopy(UV-vis-DRS).The nucleation mechanism of Cd S nanowires with the Cd microplatelets(MPs)as substrate and Cd source was studied.The results show that the hierarchical Cd S nanowired films with abundant channels are constructed with the Cd MPs electrodeposited on the Cu foil and the needle-like Cd S nanowires grown on the Cd MPs.The size of Cd S nanowires appears regular changes with the change of the concentration of thiosemicarbazide,solvothermal temperature and time.The Cu based Cd S films show a high photocatalytic activity and good stability for the photocatalytic degradation of Rhodamine B(Rh B),and the degradation rate of Rh B is 78.2%after recycling 5 cycles.
作者
刘瑶
刘新梅
张文康
黄春丽
覃礼思
LIU Yao;LIU Xin-mei;ZHANG Wen-kang;HUANG Chun-li;QIN Li-si(School of Biological and Chemical Engineering,Guangxi University of Science and Technology,Liuzhou 545006,China)
出处
《人工晶体学报》
EI
CAS
北大核心
2019年第3期533-538,544,共7页
Journal of Synthetic Crystals
基金
国家自然科学基金(21261003)
广西科技大学博士基金(院博科12Z06)
关键词
CDS
电沉积
溶剂热法
分级纳米结构
光催化
CdS
electro deposition
solvothermal method
hierarchical nanostructure
photocatalysis