摘要
为探索Au-Ag共掺杂TiO2纳米片的光催化活性,采用光化学还原法成功地制备了Au-Ag/TiO2纳米光催化材料,并且通过XRD、DRS、TEM手段对制得的催化剂进行了表征.同时以X3B染料为降解对象,紫外灯为光源,比较了催化剂的光催化性能.研究发现Au-Ag/TiO2(HSA)催化效果好于Au-Ag/TiO2(P25)和TiO2(HSA).对比负载量(质量分数Au/Ag/TiO2)分别为1∶1∶100和2∶2∶100二者催化活性的大小,结果表明:负载量为1∶1∶100的光催化活性较好,且其可重复利用性远优于负载量为2∶2∶100的催化剂.
In order to study the photocatalytic activity of Au-Ag co-doped TiO2 nanosheets,the photocatalysts were successfully prepared by photochemical reduction method,and characterized by XRD,DRS and TEM.Respectively brilliant red X3B was used as a model chemical for photodegradation to study the photocatalytic properties of the catalysts under UV irradiation,we found that the catalytic activity of Au-Ag/TiO2（HSA） was higher than that of TiO2（HSA）.On comparing the catalytic property of the different loading mass ratio of Au∶Ag∶TiO2,it was found that the photocatalytic activity and its reusability of 1∶1∶100 Au-Ag/TiO2 were better than that of 2∶2∶100 Au-Ag/TiO2 catalyst.
出处
《中南民族大学学报（自然科学版）》
CAS
2010年第3期1-5,共5页
Journal of South-Central University for Nationalities：Natural Science Edition
基金
国家自然科学基金资助项目(20803096)
中南民族大学大学生科研创新基金项目(KYCX09004E)
关键词
二氧化钛
光化学还原
表面修饰
光催化活性
TiO2
photochemical reduction
surface modification
photocatalytic activity
