BiOCl/CQDs复合催化剂的制备及光催化性能研究  

Study on the synthesis and photocatalytic activity of BiOCl/CQDs complex photocatalysts

作　　者：李玲玲[1] 倪刚[1] 王嘉楠[1] 李静[1] 李微[1] 

机构地区：[1]宁夏大学化学化工学院,银川750021

出　　处：《功能材料》2016年第4期134-138,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(21567021;21365016);宁夏高校科学研究基金资助项目(2012);宁夏大学提升综合实力建设资助项目(8016-18);宁夏大学2015年度研究生创新资助项目(GIP2015012)

摘　　要：以葡萄糖为碳源,水热法合成水溶性碳量子点(CQDs),通过超声辅助水解法将其与氯氧化铋(BiOCl)复合,制备BiOCl/CQDs复合光催化剂。采用傅里叶红外光谱、X射线衍射、扫描电子显微镜和荧光分光光度计对BiOCl/CQDs的结构与性能进行了表征。并以罗丹明B为降解底物,考察不同碳点含量的复合光催化剂的光催化性能。结果表明,和纯相氯氧化铋相比,复合光催化剂的降解率有所提高。碳点浓度为1.5mg/mL,降解时间为40min时,罗丹明B的降解率可达到93%。The water-souble carbon quantum dots(CQDs)were synthesized using the hydrothermal carbonization method with glucose as carbon source.Then a bit of CQDs was loaded on the BiOCl surface by a ultrasonic assisted hydrolysis,and the BiOCl/CQDs complex photocatalysts was goated.The structure and properties of BiOCl/CQDs photocatalysts was characterized by X-ray diffraction(XRD),scanning electron microscope(SEM),Fourier infrared spectrum(FT-IR)and Fluorescence spectrophotometer.The photocatalytic activity was evaluated by photocatalytic degradation of rhodamine B,and investigated different CQDs content of photocatalytic performance of the photocatalyst.The experiments demonstrated that the degradation rate was enhanced obviously compared with the single phase BiOCl,and the degradation rate reached to 93%in 40 minutes when the concentration of CQDs was 1.5mg/mL.

关 键 词：氯氧化铋 碳量子点 光催化剂 降解 

分 类 号：O614.5[理学—无机化学]