Solar photocatalytic degradation of 2,6-dinitro-p-cresol (DNPC) using multi-walled carbon nanotubes (MWCNTs)–TiO2 composite photocatalysts

Syntheses of Carbon Nanotube-Metal Oxides Composites; Adsorption and Photo-degradation

“…High photocatalytic activity of the TiO 2 /SWCNT composite has been observed comparing with that of TiO 2 nanoparticles. This could be attributed to the synthetic effect of larger surface area, smaller crystalline size, and the formation of the chemical bond between TiO 2 and the nanotube which improve interface contact (Zhou et al, 2010;Wang et al, 2009). It has been reported that the bond of carbon-oxygen-titanium can extend the light absorption to longer wavelengths and therefore potentially leading to the improvement of the photocatalytic activity (Woan et al, 2009).…”

“…The successful in functionalization of the nanotubes is the first step to properly prepare the nanocomposite. 297 or microwave energy and water (Cuentas-Gallegos et al, 2006;Wang et al, 2009;Smith et al, 2009;Lu et al, 2008;Otvos et al, 2006;Aviles et al, 2009;Haydar et al, 2000;Peng et al, 2011;Ionescu et al, 2006;Hojati-Talemi & Simon, 2009). Treatment with different oxidizing agents might introduce different functional groups on the CNTs surface including alcoholic, carboxylic, aldehydic, ketonic, and esteric oxygenated functional groups, see Fig.1.…”

Synergistic effects between TiO2and carbon nanotubes (CNTs) in a TiO2/CNTs system under visible light irradiation

“…[5,6] * Corresponding author. Email: wuch@kuas.edu.tw Several studies have synthesized the TiO 2 /CNTs composite, and most Ti was sourced from Ti(OC 4 H 9 ) 4 [7][8][9][10][11] and Ti(OC 3 H 7 ) 4 [5,[12][13][14][15][16][17][18]; only a few studies used TiCl 4 [11] as the Ti source. Other studies mixed only TiO 2 and CNTs to form a physical TiO 2 /CNTs mixture [19,20]; however, the photocatalytic activity of the TiO 2 /CNTs mixture was lower than that of the TiO 2 /CNTs composite.…”

ZnFe2O4/MWCNTs composite with enhanced photocatalytic activity under visible-light irradiation

“…1c, the main peaks of the ZnFe 2 O 4 /MWCNTs composite are in good accordance with pure ZnFe 2 O 4 , which indicates that incorporation of a small amount of MWCNTs into ZnFe 2 O 4 cannot lead to the change of its phase. One peak of MWCNTs at 25.7 • is very low due to trivial amount of addition [17]. The other peak of MWCNTs at 43.2 • might be overlapped by the main peak of spinel ZnFe 2 O 4 at 42.8 • , since they are so close.…”