苝二酰亚胺敏化TiO_2可见光光催化降解罗丹明B

CORC > 北京大学 > 环境科学与工程学院

	苝二酰亚胺敏化TiO_2可见光光催化降解罗丹明B; Visible-Light Photocatalytic Degradation of Rhodamine B Using Perylene Diimide Sensitized TiO_2 Photocatalyst
	赵凤伟 ; 尚静 ; 李佳
刊名	北京大学学报自然科学版
	2010
关键词	苝二酰亚胺酞菁铜染料敏化可见光光催化罗丹明B perylene diimide copper phthalocyanine dye sensitization visible-light photocatalysis rhodamine B
英文摘要	采用水热法制备了苝二酰亚胺(PTCDI)敏化的光催化剂TiO_2/PTCDI以及PTCDI和酞菁铜(CuPc)共敏化的可见光光催化剂(TiO_2/PTCDI)-CuPc.利用XRD,TEM和UV-Vis光谱对催化剂进行表面形貌和结构表征.以罗丹明B的光催化降解为模型反应,考察敏化样品的可见光光催化性能.研究表明染料共敏化样品(TiO_2/PTCDI)-CuPc的活性比TiO_2和TiO_2/PTCDI分别提高了223%和113%.应用能带结构理论,阐明了TiO_2/PTCDI和(TiO_2/PTCDI)-CuPc的光生电子转移路径和光催化降解机理.; Dye-sensitized TiO_2 photocatalysts using perylene diimide (ab.TiO_2/PTCDI) and co-sensitized using Perylenediimide(PTCDI)and copper phthalocyanine (CuPc)(ab. (TiO_2/PTCDI)-CuPc) as sensitizing compound were prepared by hydrothermal method. The crystalline structure and surface properties of the samples were characterized by XRD, TEM and UV-Vis spectra. The photocatalytic degradation of RhB under visible light illumination was used as the model reaction to investigate the photocatalytic activities of dye-sensitized TiO_2 samples. The results show that the photocatalytic activity of co-sensitized photocatalyst (TiO_2/PTCDI)-CuPc was higher than that of TiO_2 and TiO_2/PTCDI, by the extent of 223% and 113%, respectively.According to the band theory, the electron transfer processes and photocatalytic degradation mechanism of TiO_2/PTCDI and (TiO_2/PTCDI)-CuPc were explained.; 科技部科研项目; 国家自然科学基金; 环境模拟与污染控制国家重点联合实验室(北京大学)专项基金; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 0; 2; 293-297; 46
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/4596]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	赵凤伟,尚静,李佳. 苝二酰亚胺敏化TiO_2可见光光催化降解罗丹明B, Visible-Light Photocatalytic Degradation of Rhodamine B Using Perylene Diimide Sensitized TiO_2 Photocatalyst[J]. 北京大学学报自然科学版,2010.
APA	赵凤伟,尚静,&李佳.(2010).苝二酰亚胺敏化TiO_2可见光光催化降解罗丹明B.北京大学学报自然科学版.
MLA	赵凤伟,et al."苝二酰亚胺敏化TiO_2可见光光催化降解罗丹明B".北京大学学报自然科学版 (2010).