scholarly journals Photocatalytic coating for indoor air purification: Synergetic effect of photocatalyst dosage and silica modification

2016 ◽  
Vol 306 ◽  
pp. 942-952 ◽  
Author(s):  
S. Lorencik ◽  
Q.L. Yu ◽  
H.J.H. Brouwers
Keyword(s):  
Indoor Air ◽  
Synergetic Effect ◽  
Air Purification ◽  
Silica Modification ◽  
Indoor Air Purification

Study on Effects of Nano-Photocatalysis and Non-Thermal Plasma on the Removal of Indoor HCHO

2009 ◽  
Author(s):  
Yuanwei Lu ◽  
Dinghui Wang ◽  
Chongfang Ma
Keyword(s):  
Indoor Air ◽  
Thermal Plasma ◽  
Synergetic Effect ◽  
Experimental Results ◽  
Electrode Configuration ◽  
Air Purification ◽  
Plate Electrode ◽  
Low Level ◽  
Non Thermal Plasma ◽  
Indoor Air Purification

Photocatalysis is an emerging and promising technology for indoor air purification. This photocatalytic oxidation (PCO) method is effective in the case of a higher pollutant concentration, but its wide application in indoor air purification is limited due to the low level of indoor air contaminants. In order to improve the removal of pollutants in indoor air, we have evaluated the photocatalytic performance over the nanosized TiO2 particles immobilized on the surface of an activated carbon (AC) filter for the removal of formaldehyde (HCHO). However the pollutant removal capacity is low at the low level of indoor HCHO over the TiO2/AC film because the predominant influence of residence time during this reaction. In order to improve the photocatalytic removal amount of formaldehyde (HCHO) in indoor air, we studied the combining effect of photocatalysis technology with a non-thermal plasma (NTP) technology on the removal of in door HCHO. Two different plasma electrode configurations, that is wire-to-plate and needle-to-plate electrode configuration, were built and the removal of HCHO was studied by experiment. The experimental results showed that the wire-to-plate electrode configuration is more effective for the HCHO removal than the needle-to-plate electrode configurations. The experimental results using wire-to-plate electrode configuration showed that the removal of HCHO can be enhanced and the removal amount of indoor HCHO can be improved by the combination of PCO and NTP and the combination of PCO and NTP showed the synergetic effect for the indoor HCHO removal. So the combination of PCO and NTP might be a good route for the practical application of photocatalytic technology in indoor air purification.

Highly Efficient Ru/CeO2 Catalyst for Formaldehyde Oxidation at Low Temperature and Mechanistic Study

2021 ◽  
Author(s):  
Xiaoxiao Qin ◽  
Xueyan Chen ◽  
Min Chen ◽  
Jiangho Zhang ◽  
Hong He ◽  
...  
Keyword(s):  
Low Temperature ◽  
Indoor Air ◽  
Air Purification ◽  
Mechanistic Study ◽  
Highly Efficient ◽  
Formaldehyde Oxidation ◽  
Indoor Air Purification

Formaldehyde (HCHO) elimination at low temperature is of great interest for indoor air purification. In this work, 1 wt. % Ru supported on CeO2 and Al2O3 catalysts were prepared by...

scholarly journals House-plant placement for indoor air purification and health benefits on asthmatics

2014 ◽  
Vol 29 ◽  
pp. e2014014 ◽  
Author(s):  
Ho-Hyun Kim ◽  
Ji-Yeon Yang ◽  
Jae-Young Lee ◽  
Jung-Won Park ◽  
Kwang-Jin Kim ◽  
...  
Keyword(s):  
Indoor Air ◽  
Health Benefits ◽  
Air Purification ◽  
Indoor Air Purification

Study on Photocatalytic Technology with Photovoltaic-Thermal Integration and its Applications in Indoor Air Purification

2013 ◽  
Vol 864-867 ◽  
pp. 1360-1363
Author(s):  
Cheng Zhen Hu ◽  
Yan Nan Cai ◽  
Jiang Wu ◽  
Bi Chen Yan ◽  
Xue Jun Qiu ◽  
...  
Keyword(s):  
Experimental Data ◽  
Indoor Air ◽  
Air Purification ◽  
Photocatalytic Reaction ◽  
Energy And Environment ◽  
Purification Efficiency ◽  
Technical And Economic Analysis ◽  
Thermal Integration ◽  
Co Doped ◽  
Indoor Air Purification

In terms of energy and environmental purification, application of photocatalytic purification in energy and environment is getting increasingly widespread. In the present paper, it focused on the applications of photocatalytic technology in indoor air purification. Photocatalyst and photocatalytic reaction devices are the two issues in photocatalytic air purification. Fe-La co-doped TiO2 was prepared, and integration of photovoltaic-thermal circular photocatalytic air purification reactor was designed, which showed high air purification efficiency. The experimental data and theoretical analysis gave the support to exploit new indoor air purification technologies. Further, technical and economic analysis on photocatalysis technology with photovoltaic-thermal integration applying in indoor air purification was studied and helpful results were attained.

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