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Preparation of Modified TiO2 and Its Application in Wallpaper
  
DOI：10.11980/j.issn.0254-508X.2018.10.004
Key Words:TiO2  mixed crystal  wallpaper  formaldehyde
Fund Project: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）。
Author NameAffiliation
YAN Zhen-tao1 1.College of Materials Science and Engineering， Fujian University of Technology， Fuzhou， Fujian Province， 350118 
LIU Bao-sen2 2.The Energy-saving Environmental Materials Engineering Research Center of Colleges in Fujian Province， Fuzhou， Fujian Province， 350118 
JIN Gui-xiao2 2.The Energy-saving Environmental Materials Engineering Research Center of Colleges in Fujian Province， Fuzhou， Fujian Province， 350118 
WANG Qi2 2.The Energy-saving Environmental Materials Engineering Research Center of Colleges in Fujian Province， Fuzhou， Fujian Province， 350118 
WENG Ren-gui3 3.Indoor Environment Engineering Research Center of Fujian Province， Fuzhou， Fujian Province， 350118 
LIU Xin-zhong3，* 3.Indoor Environment Engineering Research Center of Fujian Province， Fuzhou， Fujian Province， 350118 
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Abstract:N-doped P25 photocatalysts （N-P25） with the visible light response were prepared using nano TiO2 （P25） as raw materials by a simple one-step hydrothermal method， the photocatalysts’ structure was characterized by XRD, UV-Vis DRS and SEM; The N-P25 was coated on the wallpaper， the optimum coating process was achieved by comprehensively compared the physical properties of the wallpaper and photocatalytic degradation of formaldehyde.The results showed that N-P25 was still mixed crystal structure， and the response to visible light was enhanced.Under the optimal coating process， the degradation rate of formaldehyde for wallpaper containing 1.5 g/m2 photocatalyst reached 87% after 6 h exposure under fluorescent lamp， and the photocatalytic degradation of formaldehyde at different initial concentrations conforms to the first-order reaction kinetics of L-H．
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