Photocatalytic activity of porous multiwalled carbon nanotube-TiO2 composite layers for pollutant degradation

Effect of different alcohols, gelatinizing times, calcination and microwave on characteristics of TiO2 nanoparticles synthesized by sol–gel method

“…Titanium dioxide (TiO 2 ) has been widely used in various technological applications such as photocatalytic layers [1], diodes [2], sensors [3], cosmetics [4] and solar cells [5]. Therefore, TiO 2 nanoparticles can be synthesized in order to use in diverse methods like laser ablation [6], RF thermal plasma [7], hydrothermal method [8], mechanochemical [9], the ultrasonic technique [10], metal organic chemical vapor deposition method [11] and sol-gel process [12,13].…”

Graphitic Carbon Nitride and Titanium Dioxide Modified with 1 D and 2 D Carbon Structures for Photocatalysis

“…[40][41][42][43][44][45][46][47] Among the reports, the photocatalytic degradation of 4-chlorophenol, [41] nitrobenzene, [42] and benzene; [43] the photocatalytic degradationo fd yes such as methylene blue (MB), [43,44,46] methyl orange (MO), [45] and RhB; [44,47] and photocatalytic hydrogen evolution [44,45] have been described. [40][41][42][43][44][45][46][47] Among the reports, the photocatalytic degradation of 4-chlorophenol, [41] nitrobenzene, [42] and benzene; [43] the photocatalytic degradationo fd yes such as methylene blue (MB), [43,44,46] methyl orange (MO), [45] and RhB; [44,47] and photocatalytic hydrogen evolution [44,45] have been described.…”

Preparation and Photocatalytic Performance of MWCNTs/TiO2Nanocomposites for Degradation of Aqueous Substrate

“…However, due to the wide band gap (3.0-3.2 eV), nano-TiO 2 is only capable of absorbing UV light, accounting for a small fraction (5%) of the sun energy, and the TiO 2 /UV system has been widely investigated in heterogeneous photocatalysis [1,11]. Besides, as the photocatalytic activity of TiO 2 is also limited by the photogenerated electron-hole pairs recombination, a suppression of this undesired reaction is an important factor for achieving a high catalytic activity [12,13].…”

“…To increase the photodegradation efficiency of TiO 2 , several attempts have been made by noble metal deposition, ion doping, or adding a coadsorbent [2,[13][14][15][16]. In particular, some porous materials have been reported to improve the catalytic performance of TiO 2 as a coadsorbent with a very porous and high adsorption capacity when used to support TiO 2 [13,[17][18][19].…”

“…In particular, some porous materials have been reported to improve the catalytic performance of TiO 2 as a coadsorbent with a very porous and high adsorption capacity when used to support TiO 2 [13,[17][18][19]. Among them, carbon nanotubes received extensive attention because of their unique structure and properties, since found in 1993 [20].…”