A review on modification of facet-engineered TiO2 for photocatalytic CO2 reduction

Recent Advances in TiO2-Based Photocatalysts for Reduction of CO2 to Fuels

“…Various nanostructured TiO 2 -based photocatalysts with different surface molecular structures play a significant role on specifying the surface adsorption properties and surface electronic structures, and thus, the photocatalytic activity of a photocatalyst is determined by its electronic structure resulted from the light absorption efficiency and redox potential of the excited charges. In addition, the surface charge transfer configurations also contribute to the photocatalytic activity by accelerating electron and hole transportation and impeding electron-hole recombination [42,43]. To that end, many studies have reported advances for CO 2 photoreduction on engineering of crystal phases [44][45][46][47][48], facets [41,[49][50][51][52][53][54][55][56][57], and TiO 2 -dispersed on porous materials [58][59][60][61].…”

Plasmonic photocatalysis applied to solar fuels

“…In our set-up, pure anatase TiO2 UV100 readily produces 1 mmol h -1 g -1 of methane on average under solar irradiation. This low yet signiftcant activity obtained without metal deposition can be attributed to oxygen vacancies present on anatase crystallites [23][24][25][26] and to the low yet signiftcant amount of UV irradiation present in the artiftcial solar spectrum (1%, see Experimental section), capable of efficiently activating anatase TiO2. Oxygen vacancies are proposed to activate the particularly inert and stable CO2 molecule by allowing CO2 adsorption on the titania surface.…”

TiO2‐Based Photocatalysis at the Interface with Biology and Biomedicine

“…Since the first report of CO 2 photoreduction by a SC particle suspension by Inoue et al., many efforts have focused on the use of TiO 2 as a photocatalytic material for this type of reaction. An extraordinary catalyst for CO 2 photoreduction features a photocatalyst, such as TiO 2 , linked electronically to a light‐capturing moiety and a CO 2 ‐reducing enzyme, CODH I .…”

“…[9] Research attention is being increasingly directed towards engineering the surface structure of TiO 2 on the atomic level (namely,m orphological control of {001} facets on the micro-and nanoscale). [10] It is importantt on ote that TiO 2 exists in two main crystallographic forms:a natase and rutile. Although anatasep resents an energy band gap of 3.23 eV (l = 388 nm), rutile exhibits a value of 3.02 eV (l = 413 nm).…”