Visible light-induced photocatalytic degradation of gas-phase acetaldehyde with platinum/reduced titanium oxide-loaded carbon paper

Content Provider	Semantic Scholar
Author	Kim, Sun Haeng Kim, Minsun Lee, Ha Young Yu, Jong-Sung
Copyright Year	2017
Abstract	Visible light-induced degradation of gas-phase acetaldehyde (CH3CHO) is investigated using O-deficient reduced TiO2−x-loaded carbon paper. The carbon paper is synthesized by the pyrolysis of a filter paper, and the reduced TiO2−x is prepared by the magnesiothermic reduction of commercial anatase TiO2. The surface areas of the non-carbonized filter paper and carbon papers obtained by carbonization at 400, 600, 800, and 1000 °C are 4.31 m2 g−1, 13.57 m2 g−1, 466.81 m2 g−1, 461.60 m2 g−1, and 26.28 m2 g−1, respectively. Although the as-prepared carbon papers possess much lower specific surface areas than that of commercial activated carbon (2200 m2 g−1), the carbon papers show better adsorption capabilities. The O-deficient reduced TiO2−x samples exhibit strong visible-light absorption, and the reduced TiO2−x-loaded carbon papers induce rapid degradation of CH3CHO and simultaneous generation of CO2 in both closed-circulation and continuous-flow modes under visible light irradiation (λ > 420 nm), attributed to the efficient adsorption of gas-phase CH3CHO by the carbon paper and the rapid and complete degradation of CH3CHO to CO2 by the active reduced TiO2−x. This strongly suggests that the reduced TiO2−x-loaded carbon paper is an efficient composite photocatalyst for the visible light-induced photocatalytic degradation of gas-phase CH3CHO.
Starting Page	50693
Ending Page	50700
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1039/C7RA10778A
Alternate Webpage(s)	https://pubs.rsc.org/en/content/articlepdf/2017/ra/c7ra10778a
Alternate Webpage(s)	http://www.rsc.org/suppdata/c7/ra/c7ra10778a/c7ra10778a1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C7RA10778A
Volume Number	7
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article