Photocatalytic reaction mechanisms at a gas–solid interface for typical air pollutant decomposition

Abstract

Various technologies have been developed towards the air pollution control to mitigate adverse impact of pollutants on human health and ecological environment. Photocatalysis is a promising technology because it can...

Aerosol-Assisted Deposition for TiO2 Immobilization on Photocatalytic Fibrous Filters for VOC Degradation

“…The photocatalytic activity of TiO 2 -loaded filters prepared by different aerosol-assisted methods was evaluated using the pseudo-first-order kinetic and Langmuir–Hinshelwood (L-H) models ( Liu et al, 2005 ; Debono et al, 2011 ; Kim et al, 2012 ). Toluene has been selected as a model pollutant for the evaluation as its photocatalytic degradation mechanism has been investigated extensively ( Marcì et al, 2003 ; Sleiman et al, 2009 ; Bianchi et al, 2014 ; Chen et al, 2021 ). The results from the pseudo-first-order kinetic analysis showed that the photocatalytic activity depended on the preparation conditions of the photocatalytic filters, and the highest activity was achieved with the samples prepared by SA and SG methods ( Figures 10A and B ).…”

Au single atom-anchored WO3/TiO2nanotubes for the photocatalytic degradation of volatile organic compounds

“…Among the existing techniques, such as thermal and catalytic combustion, absorption, biofiltration for eliminating VOCs, 5–7 photocatalytic oxidation (PCO) has attracted much attention due to its low cost and no secondary pollution. 8,9 However, the efficiency and stability of PCO technology still needs to be further improved to meet the practical industrial application.…”

Nitrogen and sulfur co-doped CeO2 nanorods for efficient photocatalytic VOCs degradation

“…[1][2][3][4] Photocatalysis technology has been well recognized as a promising solution and the use of photocatalysis technology is expected to increase. [5][6][7][8] Previous investigations of photocatalysts have mainly focused on traditional titanium dioxide (TiO 2 ), but its practical application has been seriously hindered by its wide band gap and low visible light absorption. Cerium oxide (CeO 2 ) belongs to traditional n-type semiconductors with a relatively flexible conversion ability between trivalent and tetravalent cerium oxidation states.…”