摘要
利用浸渍法制备了铜掺杂的二氧化钛,以乙酸为模型物研究了催化剂的光催化活性,利用XPS结果对改性后的催化剂进行了分析.结果表明,改性后的催化剂表面吸附氧的提高和Cu+/Cu2+的共存有利于光生载流子的分离和界面电子转移,因而改善了催化剂的光催化性能.
The copper doped titanium dioxide was prepared by immersion method. Photocatalytic activity was investigated with acetic acid as a model reactant, and the photocatalyst was analyzed by means of XPS. The enhanced degradation rate of acetic acid is attributed to increased charge separation and interfacial charge-transfer rate on the surface of the doped photocatalyst.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2003年第10期967-969,共3页
Acta Physico-Chimica Sinica
关键词
掺铜
二氧化钛
光催化剂
XPS
浸渍法
乙酸
photocatalytic oxidation
acetic acid
copper ion doping
titanium dioxide
XPS
