Facile synthesis of C, N-TiO<inf>2</inf> nanorods via layered -TMAH interlaminar bonding interaction and their enhanced catalytic performance????(Open Access)

• Key Words:Hydrothermal synthesis;Azo dyes - Catalysts - Cesium - Crystal structure - Doping (additives) - Free radical reactions - Green Synthesis - Nanorods - Photocatalysis - Photocatalytic activity - Reaction kinetics - Titanium dioxide
• Abstract:A green and efficient photocatalyst based on C and N co-doped titanium based nanorods (NRs) was prepared by facile hydrothermal synthesis and interlaminar bonding interaction between layered and tetramethylammonium hydroxide (TMAH). TMAH as one of quaternary ammonium-based compounds was used as the doping source of C and N elements. The results showed that C and N co-doping did not affect the anatase crystal structure of TiO<inf>2</inf> NRs. C, N-TiO<inf>2</inf> NRs showed excellent photocatalytic activity for degrading methyl orange under simulated sunlight irradiation. In particular, the 20:1 TiO<inf>2</inf> NRs catalyst showed the best catalytic performance, showing efficient photocatalytic rate of 90%. The photocatalytic reaction kinetics of undoped and doped catalysts was also studied. In addition, reactive species (RSs) experiments showed that hydroxyl radical (OH), superoxide radical anions (O<inf>2</inf>-) and photogenerated holes (h⁺) were major active species during the photocatalytic process. The mechanisms of the electrostatic attraction and potential photocatalytic degradation were proposed and discussed.<br/> © 2020 The Author(s). Published by IOP Publishing Ltd.
• Volume:7
• Issue:2
• Translation or Not:no