Simultaneous formation of a C/N-TiO2 hollow photocatalyst with efficient photocatalytic performance and recyclability

Recent Advances in Synthesis and Applications of Carbon-Doped TiO2 Nanomaterials

“…Although carbon doping can efficiently enhance photoelectrochemical properties of TiO 2 , it is still a very challenging task in obtaining a high doping amount of carbon in the TiO 2 lattice because C-doped TiO 2 is probably more difficult to be prepared than other non-mental doping [16], especially for single crystal or single-crystal-like TiO 2 due to its high crystallinity [8,91], which hinders its further applications in environmental, energy, and catalytic fields. Co-doping with two or more dopants is a promising way to further enhance the properties of TiO 2 compared to their single doped or undoped TiO 2 counterparts due to a strong synergistic effect between these codopants within the TiO 2 matrix [53,95,96]. Zegeye et al [36] reported that MC-Meso C-dopedTiO 2 /S showed the best cycling stability and enhanced electrochemical property for lithium-sulfur batteries.…”

“…Zhou et al [7] found that In 2 O 3 and carbon codoped TiO 2 could oxidize Hg 0 and manifested higher visible-light photoactivity compared with P25. Our previous works showed that C/N-TiO 2 hollow sphere [95] and C/Bi-TiO 2 single crystal nanorod [97] both exhibited an enhanced photocatalytic performance toward the removal of refractory organic pollutants. Unfortunately, it is extremely difficult in figuring out the contribution of carbon doping in codoped TiO 2 -based materials.…”

A 3D Hierarchical Ti3C2Tx/TiO2 Heterojunction for Enhanced Photocatalytic CO2 Reduction

“…Nevertheless, electron‐hole pairs recombine too fast and no more than 5% of solar energy can be utilized in a single‐component TiO 2 , restricting its real application [12–14] . Thus, many efforts have been made to optimize the microstructure and composition of TiO 2 for improving its photocatalytic activity, e. g., designing nanostructure, [15,16] doping heteroatoms [17,18] and introducing co‐catalysts [19–22] …”

Complete removal of phenolic contaminants from bismuth-modified TiO2 single-crystal photocatalysts

“…However, its wide bandgap and rapid recombination of photoinduced carriers lead to low efficiency for the degradation of organic pollutants [5]. Various methods, including metal doping [6,7], non-metal doping [8,9], and coupling with other semiconductors [10,11], were introduced to enhance photocatalytic performance of TiO2-based photocatalysts. Guo et al [11] prepared hollow mesoporous TiO2@g-C3N4 and found that 73% of phenol could be removed under simulated sunlight irradiation.…”