TiO₂ nanoparticles coated with deep eutectic solvents: characterization and effect on photodegradation of organic dyes

Abstract

Deep eutectic solvents (DES) have been used to modulate the catalytic activity of TiO2 nanoparticles.

A Cellulose-Type Carrier for Intimate Coupling Photocatalysis and Biodegradation

“…The detailed spectrum of Ti 2p core line has been deconvoluted into four components, including two prominent peaks of Ti 2p3/2 and Ti 2p1/2 positioned at 458.78 eV and 464.48 eV, respectively, corresponding to Ti 4+ in titanium dioxide [ 30 , 31 ]. Moreover, two weaker peaks locate closely on the shoulders of prominent peaks at 457.58 eV and 463.48 eV due to the presence of oxygen vacancy and a low-valence Ti oxidized as described as lattice defects, which can improve the efficiency of photocatalysis and widen the range of excitation wavelength to the visible from the ultraviolet [ 32 ], giving a feasible explanation of visible-light reaction to the catalyst used.…”

Tailoring the exposed facets of anatase titania and probing their correlation with photocatalytic activity – an experimental and statistical study

“…Additionally, DES also served as an excellent electrolyte for Ni/TiO 2 electrodes. [21][22][23][24][25] The role of hydrogen bond donor (HBD) and hydrogen bond acceptor (HBA) of the DES during facet evolution of anatase titania has not been studied. The photocatalytic activity of DES-mediated synthesized titania NPs has been evaluated for hydrogen evolution but has not yet been explored in the degradation of wastewater or reactive dyes.…”

Deep Eutectic Solvents (DESs) and Their Application in Biosensor Development

“…To date, DESs have found many applications in analytical chemistry, such as in the extraction of analytes from complex liquid and solid matrices [ 15 ], as modification media for nanomaterials [ 16 , 17 ], for elution in dispersive solid-phase extractions, and as a mobile-phase modifier in chromatography [ 18 , 19 ]. They have also been employed in the extraction of bioactive compounds [ 20 ], including flavonoids, phenolic acids, polyphenols, saponins, and anthraquinones, from various types of natural sources [ 21 , 22 , 23 ].…”