Open AccessPhotodegradation of acetone vapor by carbon dots decorated TiO2 catalyst: effects of experimental conditions
Author(s) -
Le Nguyen Quang Tu,
Le Thi Kim Ngan,
Nguyen Vu Hanh Nhan,
Nguyễn Quang Long
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/947/1/012014
Subject(s) - photocatalysis , acetone , photodegradation , catalysis , materials science , carbon fibers , chemical engineering , water vapor , nanotechnology , photochemistry , chemistry , organic chemistry , composite material , composite number , engineering
Being one of the most common volatile organic compounds (VOC s ), acetone can be found in everyday products and high doses of acetone pose harmful effects on human health. Photocatalytic oxidation has captured the attention as an alternative feasible and cost-effective technology in treating VOC s . This study mainly focused on the photocatalytic performance of carbon dots (CD s ) decorated TiO 2 prepared using the microwave-assisted method in degrading acetone in a continuous flow under UVA irradiation at room temperature with various experimental conditions (initial concentrations, water contents and flow rates). The presence of carbon dots on the surface of TiO 2 had improved the removal efficiency of the photocatalyst and maintained a good overall performance throughout the experiments. Significantly, the prepared CDs/TiO 2 exhibited sustainable performance under the change of water contents which usually significantly impacts the performance of photocatalysts in general.