g-C3N4纳米管的制备及其光催化降解性能
Preparation and Photocatalytic Performance of g-C3N4 Nanotubes
作者单位E-mail
王晓雪 天津大学理学院化学系, 天津 300350  
高建平 天津大学理学院化学系, 天津 300350  
赵瑞茹 天津大学理学院化学系, 天津 300350  
吴永利 天津大学理学院化学系, 天津 300350  
郝超月 天津大学理学院化学系, 天津 300350  
邱海霞 天津大学理学院化学系, 天津 300350 2015210062@tju.edu.cn 
摘要: 以三聚氰胺和碳酸氢铵混合物为原料,采用简便热解法制备g-C3N4纳米管。热解过程中碳酸氢铵分解释放出大量的NH3,能够诱导纳米管的形成。利用X射线衍射(XRD)、扫描电子显微镜(SEM)、红外光谱(IR)、N2吸附-脱附、紫外-可见漫反射光谱以及紫外可见光谱(UV)等分析测试方法对该光催化剂的微观形貌结构和催化性能进行了表征。以罗丹明光催化降解为模型反应研究了g-C3N4纳米管的光催化活性。g-C3N4纳米管的表面积明显增大,且能够有效地促进光生电子转移,在可见光下具有较强的光催化性能,降解率在60和120 min时分别能达到95%和99.4%,且循环重复利用5次后降解率不低于92%。
关键词: g-C3N4  纳米管  光催化  罗丹明B
基金项目: 国家自然科学基金(No.51573126)项目资助。
Abstract: g-C3N4 nanotubes were prepared by pyrolysis of a mixture of melamine and ammonium bicarbonate via a simple and convenient method. The morphology and catalytic properties of the photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR), N2 adsorption-desorption, ultraviolet-visible diffuse reflectance spectroscopy and UV-visible spectroscopy. The photocatalytic activity of g-C3N4 nanotubes to rhodamine B degradation was investigated. The photocatalytic activity of the g-C3N4 nanotubes under the visible light irradiation was effectively promoted because the tube structure can effectively promote the photo-electron transfer. The degradation percentage of rhodamine B was 95 and 99.4% at 60 and 120 min respective. The g-C3N4 nanotubes also displayed high recyclability.
Keywords: g-C3N4  nanotubes  degradation  rhodamine B
投稿时间:2017-12-22 修订日期:2018-01-30
摘要点击次数:  180
全文下载次数:  220
王晓雪,高建平,赵瑞茹,吴永利,郝超月,邱海霞.g-C3N4纳米管的制备及其光催化降解性能[J].无机化学学报,2018,34(6):1059-1064.
查看全文  查看/发表评论  下载PDF阅读器
Support information: