Application of nanostructured graphene oxide/titanium dioxide composites for photocatalytic degradation of rhodamine B and acid green 25 dyes

UV and Visible light photodegradation of methylene blue with graphene decorated titanium dioxide

“…Among the semiconductors studied for photocatalysis, TiO 2 is one of the most attractive materials due to its high photoactivity in the UV range [1]. Furthermore, it is non-toxic, relatively cheap and chemically stable [2,3]. In the photocatalytic process, the semiconductor is irradiated with photons with energy enough to be absorbed by the semiconductor allowing electrons to be promoted from the valence band to the conduction band, which gives place to the production of high energy electron-hole pairs [4].…”

Facile Synthesis of Ag Nanowire/TiO2 and Ag Nanowire/TiO2/GO Nanocomposites for Photocatalytic Degradation of Rhodamine B

“…Under UV irradiation, photoexcited electrons from TiO 2 nanostructures, in AgNW/ TiO 2 /GO, move onto the graphene oxide surface (Figure 11c). Consequently, the graphene oxide sheet acts as an electron acceptor for TiO 2 , and thus increases the separation of electron-hole pairs and inhibits their recombination [28]. GO sheets may also act as an electron conductor that further promotes the electron-hole separation and prompts the rate of electron migration.…”

Green construction of eco-friendly phosphotungstic acid Sr-MOF catalysts for crystal violet removal and synthesis of coumarin and xanthene compounds

“…17 Throughout the years, several techniques, such as adsorption, chemical deposition, ionic exchange, solid-liquid phase extraction, photocatalytic degradation, coagulation, membrane, and electrochemical systems have been used. [18][19][20][21][22][23][24][25][26][27][28] Adsorption is vastly avowed as the most auspicious and efficient technique because of its low cost/capital invested, insensitivity to toxic substances, simplicity of design, and prociency of the operation. In the latest years, nanotechnology has introduced a bountiful of novel nanomaterials that can exhibit promising effects on environmental treatment and clean-up.…”