TY - JOUR
T1 - Enhancement of formaldehyde removal by graphene, S, and N doping on TiO2 nanocomposite photocatalyst
AU - Narindri Rara Winayu, Birgitta
AU - Tsai, Yun Yan
AU - Chu, Hsin
N1 - Funding Information:
The authors acknowledge appreciatively to the Ministry of Science and Technology, Taiwan , for the financial support on the research with project numbers of MOST (105-2221-E-006-263) and MOST (106-2221-E-006-017-MY3) .
Publisher Copyright:
© 2022
PY - 2022/11
Y1 - 2022/11
N2 - The photocatalysis process for volatile organic compounds (VOCs) such as formaldehyde is considered a potential strategy due to its high efficiency and low cost. In this study, TiO2 was co-modified by the addition of sulfur (S), nitrogen (N), and reduced graphene oxide (rGO) under a solvothermal method for its enhancement on formaldehyde degradation. Characterization analysis of the modified TiO2 displayed an average particle size of 9.37 nm and was totally composed of anatase phase. The photocatalyst of 0.1rGO/S0·05N0·1TiO2 performed efficient visible-light-driven photocatalytic activity of formaldehyde conversion under the range of 10–60% relative humidity due to lower water adsorption competition and pores blocking. The addition of rGO, S, and N increased specific surface area, light absorption, bonding of oxygen-containing functional groups, and electron transfer capacity which are critical factors in photocatalysis activity.
AB - The photocatalysis process for volatile organic compounds (VOCs) such as formaldehyde is considered a potential strategy due to its high efficiency and low cost. In this study, TiO2 was co-modified by the addition of sulfur (S), nitrogen (N), and reduced graphene oxide (rGO) under a solvothermal method for its enhancement on formaldehyde degradation. Characterization analysis of the modified TiO2 displayed an average particle size of 9.37 nm and was totally composed of anatase phase. The photocatalyst of 0.1rGO/S0·05N0·1TiO2 performed efficient visible-light-driven photocatalytic activity of formaldehyde conversion under the range of 10–60% relative humidity due to lower water adsorption competition and pores blocking. The addition of rGO, S, and N increased specific surface area, light absorption, bonding of oxygen-containing functional groups, and electron transfer capacity which are critical factors in photocatalysis activity.
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U2 - 10.1016/j.jpcs.2022.110961
DO - 10.1016/j.jpcs.2022.110961
M3 - Article
AN - SCOPUS:85136495871
SN - 0022-3697
VL - 170
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
M1 - 110961
ER -