氮掺杂纳米TiO_2的制备及其光催化活性  

Preparation and Photocatalytic Property of Nitrogen-doped Nano-TiO_2

作　　者：王全忠[1] 刘华 刘亚丽[1] 郭达[1] 陈亚红[1] 杨志广[1] Wang Quanzhong Liu Hua Liu Yali Guo Da Chen Yahong Yang Zhiguang(College of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou 466001, Henan, China Zhouk- ou Hydrology and Water Resources Survey Bureau of Henan Province, Zhoukou 466003, Henan, China)

机构地区：[1]周口师范学院化学化工学院,河南周口466001 [2]河南省周口水文水资源勘测局,河南周口466003

出　　处：《钢铁钒钛》2017年第2期59-63,共5页Iron Steel Vanadium Titanium

基　　金：河南省高等学校重点科研项目计划资助(15A430055;16B416001);周口师范学院校本项目资助(ZKNUB115201)

摘　　要：以尿素为氮源,钛酸正丁酯为钛源,采用溶胶-凝胶法制备氮掺杂纳米TiO_2。通过红外光谱(FT-IR)、X-射线衍射(XRD)、紫外-可见吸收(UV-Vis)光谱和扫描电镜(SEM)等测试手段对材料的结构和形貌进行表征;以甲基橙模拟有机污染物,研究样品的光催化活性。结果表明,氮掺杂纳米TiO_2为锐钛矿型结构,尺寸均匀,分散性好,对甲基橙染料具有极好的光催化活性,降解率达到97%左右。The nitrogen-doped nano-TiO2（ N-doped nano-TiO2 ） was prepared by sol-gel method with urea as nitrogen source and tetrabutyl titanate as titanium source. The crystal structure and morphology of the samples were characterized by FT-IR, XRD, UV-Vis and SEM, respectively. The photocatalytic activity of the obtained N-doped nano-TiO2 was investigated through degradation of the methyl orange. The results show that the N-doped nano-TiO2 has the anatase excellent dispersibility, and the degradation rate to perb photocatalytic performance. structure and a uniform particle size distribution with methyl orange can be reached to 97% showing a superb photocatalytic performance.

关 键 词：氮掺杂 纳米二氧化钛 溶胶-凝胶法 甲基橙 

分 类 号：O643.36[理学—物理化学] TB383.1[理学—化学]