摘要
以商品化混晶TiO_2(P25)为改性对象,采用水热法制备了具有可见光活性的N掺杂改性P25(N-P25),将其涂覆于壁纸上,考察了N-Ti摩尔比、水热反应温度和反应时间对N-P25的结构和光催化性能等的影响。结果表明,改性后的P25同样具有锐钛矿相和金红石相的混晶结构,且对可见光的吸收得到了提升,在N-Ti摩尔比为18、水热反应温度和时间分别为150℃、20 h条件下制备的N-P25对甲醛的光催化降解率可达87%。
Commercially available mixed crystal TiO2(P25)was used as a modification target to prepare N-doped modified P25(N-P25)with visible light activity by hydrothermal method,and apply it to wallpaper.The effects of N-Ti molar ratio,hydrothermal reaction temperature and time on the structure and light catalytic performance were investigated.The results show that the modified P25 also has the mixed crystal structure of anatase phase and rutile phase,and the visible light absorption is improved.Under the conditions of the N-Ti molar ratio is 18,the hydrothermal reaction temperature and time are respectively 150℃and 20 h,the photocatalytic degradation rate of the prepared N-P25 to formaldehyde is up to 87%.
作者
颜振涛
翁仁贵
靳贵晓
王琪
刘峰
刘心中
YAN Zhen-tao;WENG Ren-gui;JIN Gui-xiao;WANG Qi;LIU Feng;LIU Xin-zhong(College of Materials Science and Engineering,Fujian University of Technology,Fuzhou 350118,China;The Energy-Saving Environmental Materials Engineering Research Center of Colleges in Fujian Province,Fujian University of Technology,Fuzhou 350118,China;Indoor Environment Engineering Research Center of Fujian Province,Fuzhou 350118,China)
出处
《应用化工》
CAS
CSCD
北大核心
2018年第12期2630-2634,共5页
Applied Chemical Industry
基金
福建省科技厅计划资助项目(2016H6002)
福建工程学院科研启动基金资助项目(GY-214016
GYZ16007)
关键词
TIO2
混晶
N掺杂改性
水热法
甲醛降解
TiO2
mixed crystal
N-doped modified
hydrothermal method
formaldehyde degradation
