摘要
以层状偏钛酸为前驱体,硝酸铜为铜源,通过调节溶液pH值,水热法合成了Cu2+掺杂的TiO2复合光催化材料.采用X射线粉末衍射(XRD)和扫描电镜(SEM)等表征手段对样品结构和形貌进行了分析,并考察了所合成的TiO2基复合材料光催化降解亚甲基蓝的性能.研究结果表明,pH=0.5~1.5时层状偏钛酸完全转变成了Cu2+掺杂的金红石/锐钛矿型TiO2的复合物,在pH=0.5条件下制备的Cu2+掺杂的TiO2展示了较高的光催化性能.
The Cu2+doped TiO2 composite photocatalysts were synthesized by using the layered H2TiO3 as the processor and Cu(NO3)2 as the copper source after the colloidal solution was adjusted a desired pH value.The photocatalysts obtained were characterized by XRD and SEM.And a methylene blue(MB)was used to study the photocatalytic activities of Cu2+doped TiO2 composite photocatalysts under UV light irradiation.The results show that the layered H2TiO3 is completely transformed into Cu2+doped rutile/anatase TiO2 composites at pH 0.5~1.5.And the Cu2+doped TiO2 composite obtained at pH 0.5 exhibits the higher photocatalytic activity.
作者
牛宪军
白杨
田振勇
杜意恩
NIU Xian-Jun;BAI Yang;TIAN Zhen-Yong;DU Yi-En(School of Chemistry&Chemical Engineering,Jinzhong University,Jinzhong 030619,China;The Pepople’s Hospital of Cheng’an County,Cheng’an 056700,China)
出处
《云南大学学报（自然科学版）》
CAS
CSCD
北大核心
2019年第5期1001-1008,共8页
Journal of Yunnan University(Natural Sciences Edition)
基金
晋中学院博士科研启动经费
晋中学院“1331工程”——固态功能材料制备与应用创新团队项目
