Fabrication of 3D flower-like black N-TiO2-x@MoS2 for unprecedented-high visible-light-driven photocatalytic performance

Compositing Two-Dimensional Materials with TiO2 for Photocatalysis

“…During the photocatalysis process, electrons transfer through the interface between TiO 2 and MoS 2 , and therefore the contact between the two is vital for photocatalytic activity. A strategy for construction of 3D semiconductor heterojunction structure by TiO 2 and 2D-structured MoS 2 is proposed to achieve increase of active sites and decrease of electron-hole pair combination [127,132]. For example, a 3D flower-like N-TiO 2-x @MoS 2 was obtained by hydrothermal method.…”

“…Considering that the smooth TiO 2 nanosphere shows poor affinity when coated with MoS 2 nanosheets, TiO 2 was doped with N and Ti 3+ . X-ray photoelectron spectroscopy (XPS) shows the existence of electronic interactions between MoS 2 and N-TiO 2-x and the strong heterostructure effect between the MoS 2 nanoflower and N-TiO 2-x nanosphere [127]. Another study of 3D TiO 2 @MoS 2 revealed that the formation of Ti-S bonds made TiO 2 nanoarrays firmly grasp MoS 2 , thus affording a marvelous mechanical stability for the integrated architectures [133].…”

“…Liu et al. [127] reported a N-TiO2-x@MoS2 core-shell heterostructure composite. TBT and urea were used to prepare N-doped TiO2 microspheres (N-TiO2) with a smooth surface by hydrothermal method.…”

Mixed 3D/2D dimensional TiO2 nanoflowers/MoSe2 nanosheets for enhanced photoelectrochemical hydrogen generation

“…[6][7][8][9] Meanwhile, there still exists high recombination of photogenerated electronhole pairs in pure 3D TiO 2 photoanodes. 10,11 Til date, many methods have been investigated to solve the above-mentioned problems of TiO 2 -based photoanodes such as doping, 12 surface decoration with metal nanoparticle, 9 forming heterojunction, [13][14][15] etc. Among them, constructing heterojunctions with appropriate narrow band gap photocatalyst to enhance the light absorption and restrain the recombination loss of photogenerated carriers are common and effective means.…”

Integrating metallic nanoparticles of Au and Pt with MoS2–CdS hybrids for high-efficient photocatalytic hydrogen generation via plasmon-induced electron and energy transfer

“…8 Numerous semiconductor materials have been applied and developed in this eld up to now. [9][10][11][12][13][14][15] The valence band (VB) and conduction band (CB) edges of TiO 2 are doable for direct water splitting, while only UV radiation can be utilized due to its wide band gap (E g ¼ 3-3.3 eV). 8 CdS has attracted much interest arising from its optimal band gap (about 2.4 eV) which is effective for visible-light response and has a suitable conduction band edge for water splitting.…”