Designed air purifier reactor for photocatalytic degradation of CO2 and NO2 gases using MWCNT/TiO2 thin films under visible light irradiation

2020 ◽  
Vol 248 ◽  
pp. 122872
Author(s):  
S. Mohammad Darvish ◽  
A. Morteza Ali ◽  
S. Ramezani Sani
Keyword(s):  
Thin Films ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Tio2 Thin Films ◽  
Air Purifier

Immobilization of a Series of Homo/Heterobinuclear Metal (II) Phthalocyanine Hexasulphonates on Nanocrystalline TiO2 Thin Films and their Application in the Degradation of Methylene Blue

2011 ◽  
Vol 356-360 ◽  
pp. 1728-1732
Author(s):  
Yan Zhen Yang ◽  
Ren Jie Sun ◽  
Yu Cheng Wu ◽  
Li Tao ◽  
Cheng Wu Shi
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Methylene Blue ◽  
Catalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Dark Condition ◽  
Tio2 Thin Films ◽  
Nanocrystalline Tio2

A series of binuclear metal (II) phthalocyanine hexasulphonates, (M-M)Pc, including (Co-Co)Pc, (Co-Zn)Pc, (Co-Mn)Pc, (Zn-Zn)Pc, (Zn-Mn)Pc and (Mn-Mn)Pc were synthesized and immobilized on nanocrystalline TiO2 thin films. The nanocrystalline TiO2 thin film was characterized by SEM, XRD and profilometer. The catalytic activity of various (M-M)Pc/nanocrystalline TiO2 thin films was evaluated by the degradation of methylene blue (MB) with air as the oxidant under visible light irradiation and dark condition. The results indicated that the prepared nanocrystalline TiO2 thin film had good crystalline and uniform particle size distribution. According to the degradation results of MB, various homo/hetero (M-M)Pc can sensitize nanocrystalline TiO2 thin films and improve their photocatalytic activity under visible light irradiation. The catalytic activity of hetero (M-M)Pc/nanocrystalline TiO2 thin films were more effective than that of homo (M-M)Pc under both visible light irradiation and dark condition, and the air purging was essential in degradation of MB. Therefore, these (M-M)Pc/nanocrystalline TiO2 thin films can be applied to the degradation of MB as a promising catalyzer.

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